dotemacs

ORG-NEWS (264166B)

---

 ORG NEWS -- history of user-visible changes.   -*- mode: org; coding: utf-8 -*-
 
 #+STARTUP: overview
 
 #+LINK: doc https://orgmode.org/worg/doc.html#%s
 #+LINK: msg https://list.orgmode.org/%s/
 #+LINK: git https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=%s
 
 Copyright (C) 2012-2023 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
 Please send Org bug reports to mailto:emacs-orgmode@gnu.org.
 
 * Version 9.6
 
 ** Important announcements and breaking changes
 *** =python-mode.el (MELPA)= support in =ob-python.el= is deprecated
 
 We no longer aim to support third-party =python-mode.el= implementation of Python REPL.
 Only the built-in =python.el= will be supported from now on.
 
 We still keep the old, partially broken, code in =ob-python.el= for
 the time being.  It will be removed in the next release.
 
 See https://orgmode.org/list/87r0yk7bx8.fsf@localhost for more details.
 
 *** Element cache is enabled by default and works for headings
 
 The old element cache code has been refactored.  Emacs does not hang
 anymore when the cache is enabled.
 
 When cache is enabled, ~org-element-at-point~ for headings is
 guaranteed to return valid =:parent= property.  The highest-level
 headings contain new =org-data= element as their parent.
 
 The new =org-data= element provides properties from top-level property
 drawer, buffer-global category, and =:path= property containing file
 path for file Org buffers.
 
 The new cache still need to be tested extensively.  Please, report any
 warning coming from element cache.  If you see warnings regularly, it
 would be helpful to set ~org-element--cache-self-verify~ to
 ='backtrace= and provide the backtrace to Org mailing list.
 
 *** Element cache persists across Emacs sessions
 
 The cache state is saved between Emacs sessions.  Enabled by default.
 
 The cache persistence can be controlled via
 ~org-element-cache-persistent~.
 
 *** Users experiencing performance issues can use new folding backend
 
 The old folding backend used in Org is poorly scalable when the file
 size increases beyond few Mbs.  The symptoms usually include slow
 cursor motion, especially in long-running Emacs sessions.
 
 A new optimized folding backend is now available, and enabled by
 default.  To disable it, put the following to the Emacs config *before*
 loading Org:
 
 #+begin_src emacs-lisp
 (setq org-fold-core-style 'overlays)
 #+end_src
 
 Even more performance optimization can be enabled by customizing
 =org-fold-core--optimise-for-huge-buffers=.  However, this option may
 be dangerous.  Please, read the variable docstring carefully to
 understand the possible consequences.
 
 When =org-fold-core-style= is set to =text-properties=, several new
 features will become available and several notable changes will happen
 to the Org behavior.  The new features and changes are listed below.
 
 **** Hidden parts of the links can now be searched and revealed during isearch
 
 In the past, hidden parts of the links could not be searched using
 isearch (=C-s=).  Now, they are searchable by default.  The hidden
 match is also revealed temporarily during isearch.
 
 To restore the old behavior add the following core to your Emacs
 config:
 
 #+begin_src emacs-lisp
 (defun org-hidden-link-ignore-isearch ()
   "Do not match hidden parts of links during isearch."
   (org-fold-core-set-folding-spec-property 'org-link :isearch-open nil)
   (org-fold-core-set-folding-spec-property 'org-link :isearch-ignore t))
 (add-hook 'org-mode-hook #'org-hidden-link-ignore-isearch)
 #+end_src
 
 See docstring of =org-fold-core--specs= to see more details about
 =:isearch-open= and =:isearch-ignore= properties.
 
 **** =org-catch-invisible-edits= now works for hidden parts of the links and for emphasis markers
 
 In the past, user could edit invisible parts of the links and emphasis markers.  Now, the editing is respecting the value of =org-catch-invisible-edits=.
 
 Note that hidden parts of sub-/super-scripts are still not handled.
 
 **** Breaking structure of folded elements automatically reveals the folded text
 
 In the past, the user could be left with unfoldable text after breaking the org structure.
 
 For example, if
 
 #+begin_src org
 :DRAWER:
 like this
 :END:
 #+end_src
 
 is folded and then edited into
 
 #+begin_src org
 DRAWER:
 like this
 :END:
 #+end_src
 The hidden text would not be revealed.
 
 Now, breaking structure of drawers, blocks, and headings automatically
 reveals the folded text.
 
 **** Folding state of the drawers is now preserved when cycling headline visibility
 
 In the past drawers were folded every time a headline is unfolded.
 
 Now, it is not the case anymore.  The drawer folding state is
 preserved.  The initial folding state of all the drawers in buffer is
 set according to the startup visibility settings.
 
 To restore the old behavior, add the following code to Emacs config:
 
 #+begin_src emacs-lisp
 (add-hook 'org-cycle-hook #'org-cycle-hide-drawers)
 #+end_src
 
 Note that old behavior may cause performance issues when cycling
 headline visibility in large buffers.
 
 **** =outline-*= functions may no longer work correctly in Org mode
 
 The new folding backend breaks some of the =outline-*= functions that
 rely on the details of visibility state implementation in
 =outline.el=.  The old Org folding backend was compatible with the
 =outline.el= folding, but it is not the case anymore with the new
 backend.  From now on, using =outline-*= functions is strongly
 discouraged when working with Org files.
 
 *** HTML export uses MathJax 3+ instead of MathJax 2
 
 Org now uses MathJax 3 by default instead of MathJax 2.  During HTML
 exports, Org automatically converts all legacy MathJax 2 options to
 the corresponding MathJax 3+ options, except for the ~path~ option in
 which now /must/ point to a file containing MathJax version 3 or
 later.  The new Org does /not/ work with the legacy MathJax 2.
 
 Further, if you need to use a non-default ~font~ or ~linebreaks~ (now
 ~overflow~), then the ~path~ must point to MathJax 4 or later.
 
 See the updated ~org-html-mathjax-options~ for more details.
 
 MathJax 3, a ground-up rewrite of MathJax 2 came out in 2019.  The new
 version brings modularity, better and faster rendering, improved LaTeX
 support, and more.
 
 For more information about new features, see:
 
 https://docs.mathjax.org/en/latest/upgrading/whats-new-3.0.html
 https://docs.mathjax.org/en/latest/upgrading/whats-new-3.1.html
 https://docs.mathjax.org/en/latest/upgrading/whats-new-3.2.html
 
 MathJax 3 comes with useful extensions.  For instance, you can typeset
 calculus with the ~physics~ extension or chemistry with the ~mhchem~
 extension, like in LaTeX.
 
 Note that the Org manual does not discuss loading of MathJax
 extensions via ~+HTML_MATHJAX~ anymore.  It has never worked anyway.
 To actually load extensions, consult the official documentation:
 
 https://docs.mathjax.org/en/latest/input/tex/extensions.html
 
 Lastly, MathJax 3 changed the default JavaScript content delivery
 network (CDN) provider from CloudFlare to jsDelivr.  You can find the
 new terms of service, including the privacy policy, at
 https://www.jsdelivr.com/terms.
 
 *** List references in source block variable assignments are now proper lists
 
 List representation of named lists is now converted to a simple list
 as promised by the manual section [[info:org#Environment of a Code Block][org#Environment of a Code Block]].
 Previously, it was converted to a list of lists.
 
 Before:
 
 #+begin_src org
 ,#+NAME: example-list
 - simple
   - not
   - nested
 - list
 
 ,#+BEGIN_SRC emacs-lisp :var x=example-list :results value
 (format "%S" x)
 ,#+END_SRC
 
 ,#+RESULTS:
 : (("simple" (unordered ("not") ("nested"))) ("list"))
 #+end_src
 
 After:
 
 #+begin_src org
 ,#+BEGIN_SRC emacs-lisp :var x=example-list :results value
 (format "%S" x)
 ,#+END_SRC
 
 ,#+RESULTS:
 : ("simple" "list")
 #+end_src
 
 ** New features
 *** Clock table can now produce quarterly reports
 
 =:step= clock table parameter can now be set to =quarter=.
 *** Publishing now supports links to encrypted Org files
 
 Links to other published Org files are automatically converted to the
 corresponding html links.  Now, this feature is also available when
 links point to encrypted Org files, like
 =[[file:foo.org.gpg::Heading]]=.
 
 *** Interactive commands now support escaping text inside comment blocks
 
 ~org-edit-special~ and ~org-insert-structure-template~ now handle
 comment blocks.
 
 See [[*New command ~org-edit-comment-block~ to edit comment block at
 point]].
 
 *** New customization option =org-property-separators=
 A new alist variable to control how properties are combined.
 
 If a property is specified multiple times with a =+=, like
 
 #+begin_src org
 :PROPERTIES:
 :EXPORT_FILE_NAME: some/path
 :EXPORT_FILE_NAME+: to/file
 :END:
 #+end_src
 
 the old behavior was to always combine them with a single space
 (=some/path to/file=).  For the new variable, the car of each item in
 the alist should be either a list of property names or a regular
 expression, while the cdr should be the separator to use when
 combining that property.
 
 The default value for the separator is a single space, if none of the
 provided items in the alist match a given property.
 
 For example, in order to combine =EXPORT_FILE_NAME= properties with a
 forward slash =/=, one can use
 
 #+begin_src emacs-lisp
 (setq org-property-separators '((("EXPORT_FILE_NAME") . "/")))
 #+end_src
 
 The example above would then produce the property value
 =some/path/to/file=.
 
 *** New library =org-persist.el= implements variable persistence across Emacs sessions
 
 The library stores variable data in ~org-persist-directory~ (set to XDG
 cache dir by default).
 
 The entry points are ~org-persist-register~, ~org-persist-unregister~,
 ~org-persist-read~, and ~org-persist-read-all~.  Storing circular
 structures is supported.  Storing references between different
 variables is also supported (see =:inherit= key in
 ~org-persist-register~).
 
 The library permits storing buffer-local variables.  Such variables
 are linked to the buffer text, file =inode=, and file path.
 
 *** New =:options= attribute when exporting tables to LaTeX
 
 The =:options= attribute allows adding an optional argument with a
 list of various table options (between brackets in LaTeX export),
 since certain tabular environments, such as longtblr of the
 tabularray LaTeX package, provides this structure.
 
 *** New =:compact= attribute when exporting lists to Texinfo
 
 The =:compact= attribute allows exporting multiple description list
 items to one =@item= command and one or more =@itemx= commands.  This
 feature can also be enabled for all description lists in a file using
 the =compact-itemx= export option, or globally using the
 ~org-texinfo-compact-itemx~ variable.
 
 *** New shorthands recognized when exporting to Texinfo
 
 Items in a description list that begin with =Function:=, =Variable:=
 or certain related prefixes are converted using Texinfo definition
 commands.
 *** New =:noweb-prefix= babel header argument
 
 =:noweb-prefix= can be set to =no= to prevent the prefix characters
 from being repeated when expanding a multiline noweb reference.
 
 *** New =:noweb= babel header argument value =strip-tangle=
 
 =:noweb= can be set to =strip-tangle= to strip the noweb syntax references
 before tangling.
 
 *** New LaTeX source block backend using =engraved-faces-latex=
 
 When ~org-latex-src-block-backend~ is set to ~engraved~,
 =engrave-faces-latex= from [[http://elpa.gnu.org/packages/engrave-faces.html][engrave-faces]] is used to transcode source
 blocks to LaTeX. This requires the =fvextra=, =float=, and (by
 default, but not necessarily) =tcolorbox= LaTeX packages be
 installed. It uses Emacs' font-lock information, and so tends to
 produce results superior to Minted or Listings.
 *** Support for =#+include=-ing URLs
 
 =#+include: FILE= will now accept URLs as the file.
 *** Structure templates now respect case used in ~org-structure-template-alist~
 
 The block type in ~org-structure-template-alist~ is not case-sensitive.
 When the block type starts from the upper case, structure template
 will now insert =#+BEGIN_TYPE=.  Previously, lower-case =#+begin_type= was inserted unconditionally.
 *** New ox-latex tabbing support for tables.
 
 Latex tables can now be exported to the latex tabbing environment
 tabbing environment]].
 This is done by adding =#+ATTR_LATEX: :mode tabbing= at the top
 of the table.
 The default column width is set to 1/n times the latex textwidth,
 where n is the number of columns.
 This behavior can be changed by supplying a =:align= parameter.
 
 The tabbing environment can be useful when generating simple tables which
 can be span multiple pages and when table cells are allowed to overflow.
 *** Support for =nocite= citations and sub-bibliographies in the "csl" export processor
 
 The "csl" citation export processor now supports =nocite= style
 citations that add items to the printed bibliography without visible
 references in the text. Using the key =*= in a nocite citation, for
 instance,
 
 #+begin_src org
 [cite/n:@*]
 #+end_src
 
 includes all available items in the printed bibliography.
 
 The "csl" export processor now also supports sub-bibliographies that
 show only a subset of the references based on some criterion.  For
 example,
 
 #+begin_src org
 #+print_bibliography: :type book :keyword ai
 #+end_src
 
 prints a sub-bibliography containing the book entries with =ai= among
 their keywords.
 *** New =:filetitle= option for clock table
 
 The =:filetitle= option for clock tables can be set to ~t~ to show org
 file title (set by =#+title:=) in the File column instead of the
 file name.  For example:
 
 #+begin_src org
 ,#+BEGIN: clocktable :scope agenda :maxlevel 2 :block thisweek :filetitle t
 #+end_src
 
 If a file does not have a title, the table will show the file name
 instead.
 *** New =org-md-toplevel-hlevel= variable for Markdown export
 
 The =org-md-toplevel-hlevel= customization variable sets the heading
 level used for top level headings, much like how
 =org-html-toplevel-hlevel= sets the heading level used for top level
 headings in HTML export.
 *** Babel: new syntax to pass the contents of a src block as argument
 
 Use the header argument =:var x=code-block[]= or
 : #+CALL: fn(x=code-block[])
 to pass the contents of a named code block as a string argument.
 *** New property =ORG-IMAGE-ACTUAL-WIDTH= for overriding global ~org-image-actual-width~
 
 The new property =ORG-IMAGE-ACTUAL-WIDTH= can override the global
 variable ~org-image-actual-width~ value for inline images display width.
 
 *** Outline cycling can now include inline image visibility
 
 New ~org-cycle-hook~ function ~org-cycle-display-inline-images~ for
 auto-displaying inline images in the visible parts of the subtree.
 This behavior is controlled by new custom option
 ~org-cycle-inline-images-display~.
 
 *** New ~org-babel-tangle-finished-hook~ hook run at the very end of ~org-babel-tangle~
 
 This provides a proper counterpart to ~org-babel-pre-tangle-hook~, as
 ~org-babel-post-tangle-hook~ is run
 per-tangle-destination. ~org-babel-tangle-finished-hook~ is just run
 once after the post tangle hooks.
 
 *** New =:backend= header argument for clojure code blocks
 
 The =:backend= header argument on clojure code blocks can override the
 value of ~org-babel-clojure-backend~. For example:
 
 #+begin_src clojure :backend babashka
 (range 2)
 #+end_src
 
 *** New =:results discard= header argument
 
 Unlike =:results none=, the return value of code blocks called with
 =:results discard= header argument is always ~nil~.  Org does not
 attempt to analyze the results and simply returns nil.  This can be
 useful when the code block is used for side effects only but generates
 large outputs that may be slow to analyze for Org.
 
 *** Add Capture template hook properties
 
 Capture templates can now attach template specific hooks via the
 following properties: ~:hook~, ~:prepare-finalize~,
 ~:before-finalize~, ~:after-finalize~.  These nullary functions run
 prior to their global counterparts for the selected template.
 
 ** New options
 *** A new option for custom setting ~org-refile-use-outline-path~ to show document title in refile targets
 
 Setting ~org-refile-use-outline-path~ to ~'title~ will show title
 instead of the file name in refile targets.  If the document do not have
 a title, the filename will be used, similar to ~'file~ option.
 
 *** A new option for custom setting ~org-agenda-show-outline-path~ to show document title
 
 Setting ~org-agenda-show-outline-path~ to ~'title~ will show title
 instead of the file name at the beginning of the outline.  The title of
 the document can be set by special keyword =#+title:=.
 
 *** New custom settings =org-icalendar-scheduled-summary-prefix= and =org-icalendar-deadline-summary-prefix=
 
 These settings allow users to define prefixes for exported summary
 lines in ICS exports.  The customization can be used to disable
 the prefixes completely or make them a little bit more verbose
 (e.g. "Deadline: " instead of the default "DL: ").
 
 The same settings can also be applied via corresponding exporter
 options:
 =:icalendar-scheduled-summary-prefix=,
 =:icalendar-deadline-summary-prefix=
 
 *** A new custom setting =org-hide-drawer-startup= to control initial folding state of drawers
 
 Previously, all the drawers were always folded when opening an Org
 file.  This only had an effect on the drawers outside folded
 headlines.  The drawers inside folded headlines were re-folded because
 =org-cycle-hide-drawers= was present inside =org-cycle-hook=.
 
 With the new folding backend, running =org-cycle-hide-drawers= is no
 longer needed if all the drawers are truly folded on startup: [[*Folding
 state of the drawers is now preserved when cycling headline
 visibility]].  However, this has an unwanted effect when a user does
 not want the drawers to be folded (see [[https://orgmode.org/list/m2r14f407q.fsf@ntnu.no][this bug report]]).
 
 The new custom setting gives more control over initial folding state
 of the drawers.  When set to =nil= (default is =t=), the drawers are
 not folded on startup.
 
 The folding state can also be controlled on per-file basis using
 =STARTUP= keyword:
 
 : #+startup: hidedrawers
 : #+startup: nohidedrawers
 
 *** New custom setting ~org-icalendar-force-alarm~
 
 The new setting, when set to non-nil, makes Org create alarm at the
 event time when the alarm time is set to 0.  The default value is
 nil -- do not create alarms at the event time.
 
 *** New special value ~'attach~ for src block =:dir= option
 
 Passing the symbol ~attach~ or string ="'attach"= (with quotes) to the =:dir=
 option of a src block is now equivalent to =:dir (org-attach-dir) :mkdir yes=
 and any file results with a path descended from the attachment directory will
 use =attachment:= style links instead of the standard =file:= link type.
 
 ** New functions and changes in function arguments
 *** New function ~org-get-title~ to get =#+TITLE:= property from buffers
 
 A function to collect the document title from the org-mode buffer.
 
 *** ~org-fold-show-entry~ does not fold drawers by default anymore
 
 ~org-fold-show-entry~ now accepts an optional argument HIDE-DRAWERS.
 When the argument is non-nil, the function folds all the drawers
 inside entry.  This was the default previously.
 
 Now, ~org-fold-show-entry~ does not fold drawers by default.
 
 *** New command ~org-edit-comment-block~ to edit comment block at point
 
 As the contents of comments blocks is not parsed as Org markup, the
 headlines and keywords inside should be escaped, similar to src
 blocks, example blocks, and export blocks.  This in inconvenient to do
 manually and ~org-edit-special~ is usually advised to edit text in
 such kind of blocks.
 
 Now, comment block editing is also supported via this new function.
 
 *** New function ~org-element-cache-map~ for quick mapping across Org elements
 
 When element cache is enabled, the new function provides the best
 possible performance to map across large Org buffers.
 
 It is recommended to provide =:next-re= and =:fail-re= parameters for
 best speed.
 
 Diagnostic information about execution speed can be provided according
 to ~org-element--cache-map-statistics~ and
 ~org-element--cache-map-statistics-threshold~.
 
 ~org-scan-tags~ and tag views in agenda utilize the new function.
 *** New function ~org-element-at-point-no-context~
 
 This function is like ~org-element-at-point~, but it does not try to
 update the cache and does not guarantee correct =:parent= properties
 for =headline= elements.
 
 This function is faster than ~org-element-at-point~ when used together
 with frequent buffer edits.
 *** Various Org API functions now use cache and accept Org elements as optional arguments
 
 ~org-in-archived-heading-p~, ~org-in-commented-heading-p~,
 ~org-up-heading-safe~, ~org-end-of-subtree~, ~org-goto-first-child~,
 ~org-back-to-heading~, ~org-entry-get-with-inheritance~, and
 ~org-narrow-to-subtree~ all accept Org element as an extra optional
 argument.
 
 ~org-get-tags~ now accepts Org element or buffer position as first
 argument.
 
 *** New function ~org-texinfo-kbd-macro~
 
 This function is intended for us in the definition of a ~kbd~ macro in
 files that are exported to Texinfo.
 
 *** =org-at-heading-p= now recognizes optional argument. Its meaning is inverted.
 
 =org-at-heading-p= now returns t by default on headings inside folds.
 Passing optional argument will produce the old behavior.
 
 *** =org-babel-execute:plantuml= can output ASCII graphs in the buffer
 
 Previously, executing PlantUML src blocks always exported to a file.  Now, if
 :results is set to a value which does not include "file", no file will be
 exported and an ASCII graph will be inserted below the src block.
 
 ** Removed or renamed functions and variables
 *** =org-plantump-executable-args= is renamed and applies to jar as well
 
 The new variable name is =org-plantuml-args=.  It now applies to both
 jar PlantUML file and executable.
 *** Default values and interpretations of ~org-time-stamp-formats~ and ~org-time-stamp-custom-formats~ are changed
 
 Leading =<= and trailing =>= in the default values of
 ~org-time-stamp-formats~ and ~org-time-stamp-custom-formats~ are
 stripped.
 
 The Org functions that are using these variables also ignore leading
 and trailing brackets (=<...>= and =[...]=, if present).
 
 This change makes the Org code more consistent and also makes the
 docstring for ~org-time-stamp-custom-formats~ accurate.
 
 No changes on the user side are needed if
 ~org-time-stamp-custom-formats~ was customized.
 *** ~org-timestamp-format~ is renamed to ~org-format-timestamp~
 
 The old function name is similar to other ~org-time-stamp-format~
 function.  The new name emphasizes that ~org-format-timestamp~ works
 on =timestamp= objects.
 
 *** Updated argument list in ~org-time-stamp-format~
 
 New =custom= argument in ~org-time-stamp-format~ makes the function
 use ~org-time-stamp-custom-formats~ instead of
 ~org-time-stamp-formats~ to determine the format.
 
 Optional argument =long= is renamed to =with-time=, emphasizing that it refers to time stamp format with time specification.
 
 Optional argument =inactive= can now have a value =no-brackets= to
 return format string with brackets stripped.
 
 ** Miscellaneous
 *** SQL Babel ~:dbconnection~ parameter can be mixed with other SQL Babel parameters
 
 Before you could either specify SQL parameters like ~:dbhost~,
 ~:dbuser~, ~:database~, etc or a ~:dbconnection~ parameter which looks
 up all other parameters from the ~sql-connection-alist~ variable.  Now
 it's possible to specify a ~:dbconnection~ and additionally other
 parameters that will add or overwrite the parameters coming from
 ~sql-connection-alist~.
 
 E.g. if you have a connection in your ~sql-connection-alist~ to a
 server that has many databases, you don't need an entry for every
 database but instead can just specify ~:database~ next to your
 ~:dbconnection~ parameter.
 
 *** Post-processing code blocks can return an empty list
 
 When the result of a regular code block is nil, then that was already
 treated as an empty list.  Now that is also the case for code blocks
 that post-process the result of another block.
 
 *** Styles are customizable in ~biblatex~ citation processor
 
 It is now possible to add new styles or modify old ones in ~biblatex~
 citation processor.  See ~org-cite-biblatex-styles~ for more
 information.
 
 *** Citation processors can declare styles dynamically
 
 When a citation processor is registered, it is now possible to set
 ~:cite-styles~ key to a function, which will be called whenever the
 list of styles is required.
 
 *** Org also searches for CSL style files in default directory
 
 When CSL style file name is relative, Org first looks into
 default-directory before trying ~org-cite-csl-styles-dir~.
 
 *** Users can add checkers to the linting process
 
 The function ~org-lint-add-checker~ allows one to add personal checks
 when calling ~org-lint~.   See its docstring for more information.
 
 *** New =transparent-image-converter= property for =dvipng=
 
 The =dvipng= option in ~org-preview-latex-process-alist~ has a new
 property =transparent-image-converter= which is used instead of
 =image-converter= when producing transparent images.
 
 *** =:tangle-mode= now accepts more permissions formats
 
 Previously =:tangle-mode (identity #o755)= was the only reasonable way
 to set the file mode. ~org-babel-interpret-file-mode~ has been
 introduced which will accept three new formats:
 + Short octals, e.g. =:tangle-mode o755=
 + ls-style, e.g. =:tangle-mode rwxrw-rw-=
 + chmod-style, e.g. =:tangle-mode u+x=
 
 Chmod-style permissions are based on the new variable
 ~org-babel-tangle-default-file-mode~.
 
 *** A new custom setting =org-agenda-clock-report-header= to add a header to org agenda clock report
 
 *** ~org-latex-listings~ has been replaced with ~org-latex-src-block-backend~
 
 ~org-latex-listings~ has been renamed to better reflect the current
 purpose of the variable.  The replacement variable
 ~org-latex-src-block-backend~ acts in exactly the same way, however it
 accepts =listings= and =verbatim= in place of =t= and =nil= (which
 still work, but are no longer listed as valid options).
 
 *** ~org-link-parameters~ has a new ~:insert-description~ parameter
 
 The value of ~:insert-description~ is used as the initial input when
 prompting for a link description.  It can be a string (used as-is) or
 a function (called with the same arguments as
 ~org-make-link-description-function~ to return a string to use).
 
 An example of a such function for =info:= links is
 ~org-info-description-as-command~.  To access a manual section outside
 of Org, description may be pasted to shell prompt or evaluated within
 Emacs using =M-:= (wrapped into parenthesis).  For example,
 description of the =info:org#Tags= link is =info "(org) Tags"=.  To
 restore earlier behavior add to your Emacs init file the following:
 #+begin_src elisp :results silent :eval never-export
   (with-eval-after-load 'ol-info
     (org-link-set-parameters "info" :insert-description nil))
 #+end_src
 
 *** New list of languages for LaTeX export: ~org-latex-language-alist~
 
 ~org-latex-language-alist~ unifies into a single list the old language
 lists for the =babel= and =polyglossia= LaTeX packages:
 ~org-latex-babel-language-alist~ and
 ~org-latex-polyglossia-language-alist~, respectively, which are
 declared obsolete.
 
 This new list captures the current state of art regarding language
 support in LaTeX.  The new =babel= syntax for loading languages via
 =ini= files and the new command =\babelprovide= (see:
 https://mirrors.ctan.org/macros/latex/required/babel/base/babel.pdf)
 are also supported.
 *** Texinfo exports include LaTeX
 
 With the new customization option ~org-texinfo-with-latex~ set to (its
 default value) ~'detect~, if the system runs Texinfo 6.8 (3 July 2021)
 or newer, Org will export all LaTeX fragments and environments using
 Texinfo ~@math~ and ~@displaymath~ commands respectively.
 *** More flexible ~org-attach-id-to-path-function-list~
 
 List entries may return nil if they are unable to handle the passed
 ID.  So, responsibility is passed to the next item in the list.
 Default entries ~org-attach-id-uuid-folder-format~ and
 ~org-attach-id-ts-folder-format~ now return nil for too short IDs.
 Earlier an obscure error has been thrown.
 
 After the change, error text suggests adjusting
 ~org-attach-id-to-path-function-list~ value.  The
 ~org-attach-dir-from-id~ function is adapted to ignore nil values and
 to take first non-nil value instead of the value returned by first
 ~org-attach-id-to-path-function-list~ item.
 
 New policy allows mixing different ID styles while keeping subfolder
 layout suited best for each one.  For example, one can use the
 following snippet to allow multiple different ID formats in Org files.
 
 #+begin_src emacs-lisp
 (setq org-attach-id-to-path-function-list
       '(;; When ID looks like an UUIDs or Org internal ID, use
         ;; `org-attach-id-uuid-folder-format'.
         (lambda (id)
           (and (or (org-uuidgen-p id)
 	           (string-match-p "[0-9a-z]\\{12\\}" id))
 	       (org-attach-id-uuid-folder-format id)))
         ;; When ID looks like a timestamp-based ID. Group by year-month
         ;; folders.
         (lambda (id)
           (and (string-match-p "[0-9]\\{8\\}T[0-9]\\{6\\}\.[0-9]\\{6\\}" id)
                (org-attach-id-ts-folder-format id)))
         ;; Any other ID goes into "important" folder.
         (lambda (id) (format "important/%s/%s" (substring id 0 1) id))
         ;; Fallback to detect existing attachments for old defaults.
         ;; All the above functions, even when return non-nil, would
         ;; point to non-existing folders.
         org-attach-id-uuid-folder-format
         org-attach-id-ts-folder-format))
 #+end_src
 
 * Version 9.5
 
 ** Important announcements and breaking changes
 
 *** The =contrib/= now lives in a separate repository
 
 Org's repository has been trimmed from the =contrib/= directory.
 
 The old contents of the =contrib/= directory now lives in a separate
 repository at https://git.sr.ht/~bzg/org-contrib.
 
 You can install this repository by cloning it and updating your
 ~load-path~ accordingly.  You can also install =org-contrib= as a
 [[https://elpa.nongnu.org/nongnu/][NonGNU ELPA]] package.
 
 *** Org ELPA and Org archives won't be available for Org > 9.5
 
 [[https://orgmode.org/elpa.html][Org ELPA]] is still available for installing Org 9.5, either with or
 without contributed packages, but future versions won't be available
 via Org ELPA, as we are deprecating this installation method.
 
 Also, Org 9.5 is available as =tar.gz= and =zip= archives, but this
 installation method is also deprecated.
 
 If you want to install the latest stable versions of Org, please use
 the GNU ELPA package.  If you want to install the contributed files,
 please use the NonGNU ELPA package.  If you want to keep up with the
 latest unstable Org, please install from the Git repository.
 
 See https://orgmode.org/org.html#Installation for the details.
 
 *** =ditaa.jar= is not bundled with Org anymore
 
 =ditaa.jar= used to be bundled with Org but it is not anymore.
 See [[https://github.com/stathissideris/ditaa][the ditaa repository]] on how to install it.
 
 *** ~org-adapt-indentation~ now defaults to =nil=
 
 If you want to automatically indent headlines' metadata, set it to
 =headline-data=.
 
 If you want to automatically indent every line to the headline's
 current indentation, set it to =t=.
 
 Indent added by =RET= and =C-j= also depends on the value of
 ~electric-indent-mode~.  Enabling this mode by default in 9.4 revealed
 some bugs caused confusing behavior.  If you disabled
 ~electric-indent-mode~ for this reason, it is time to try it again.
 Hopefully problems have been fixed.  See [[https://orgmode.org/worg/org-faq.html#indentation][this FAQ]] for more details.
 
 *** ~org-speed-commands-user~ is obsolete, use ~org-speed-commands~
 
 Setting ~org-speed-commands-user~ in your configuration won't have any
 effect.  Please set ~org-speed-commands~ instead, which see.
 
 *** Some =ob-*.el= files have been moved to the org-contrib repo
 
 These files have been moved to https://git.sr.ht/~bzg/org-contrib:
 
 - ob-abc.el
 - ob-asymptote.el
 - ob-coq.el
 - ob-ebnf.el
 - ob-hledger.el
 - ob-io.el
 - ob-J.el
 - ob-ledger.el
 - ob-mscgen.el
 - ob-picolisp.el
 - ob-shen.el
 - ob-stan.el
 - ob-vala.el
 
 See the discussion [[msg::87bl9rq29m.fsf@gnu.org][here]].
 
 *** Compatibility with Emacs versions
 
 We made it explicit that we aim at keeping the latest stable version
 of Org compatible with at least Emacs V, V-1 and V-2, where V is the
 stable major version of Emacs.
 
 For example, if the current major version of Emacs is 28.x, then the
 latest stable version of Org should be compatible with Emacs 28.x,
 27.x and 26.x – but not with Emacs 25.x.
 
 See [[https://orgmode.org/worg/org-maintenance.html#emacs-compatibility][this note on Worg]] and [[git::519947e508e081e71bf67db99e27b1c171ba4dfe][this commit]].
 
 *** The keybinding for ~org-table-blank-field~ has been removed
 
 If you prefer to keep the keybinding, you can add it back to
 ~org-mode-map~ like so:
 
 #+begin_src emacs-lisp
 (define-key org-mode-map (kbd "C-c SPC") #'org-table-blank-field)
 #+end_src
 
 ** New features
 
 *** New citation engine
 
 Org 9.5 provides a new library =oc.el= which provides tooling to
 handle citations in Org, e.g., activate, follow, insert, and export
 them, respectively called "activate", "follow", "insert" and "export"
 capabilities.  Libraries responsible for providing some, or all, of
 these capabilities are called "citation processors".
 
 The manual contains a few pointers to let you start and you may want
 to check [[https://blog.tecosaur.com/tmio/2021-07-31-citations.html][this blog post]].  If you need help using this new features,
 please ask on the mailing list.
 
 Thanks to Nicolas Goaziou for implementing this, to Bruce D’Arcus for
 helping him and to John Kitchin for paving the way with =org-ref.el=.
 
 *** Async session evaluation
 
 The =:async= header argument can be used for asynchronous evaluation
 in session blocks for certain languages.
 
 Currently, async evaluation is supported in Python.  There is also
 functionality to implement async evaluation in other languages that
 use comint, but this needs to be done on a per-language basis.
 
 By default, async evaluation is disabled unless the =:async= header
 argument is present.  You can also set =:async no= to force it off
 (for example if you've set =:async= in a property drawer).
 
 Async evaluation is disabled during export.
 *** ~ox-koma-letter.el~ is now part of Org's core
 
 ~ox-koma-letter.el~ provides a KOMA scrlttr2 back-end for the Org
 export engine.  It used to be in the =contrib/= directory but it is
 now part of Org's core.
 
 *** Support exporting DOI links
 
 Org now supports export for DOI links, through its new =ol-doi.el=
 library.  For backward compatibility, it is loaded by default.
 
 *** Add a new ~:refile-targets~ template option
 
 When exiting capture mode via ~org-capture-refile~, the variable
 ~org-refile-targets~ will be temporarily bound to the value of this
 template option.
 
 *** New startup options =#+startup: show<n>levels=
 
 These startup options complement the existing =overview=, =content=,
 =showall=, =showeverything= with a way to start the document with n
 levels shown, where n goes from 2 to 5.
 
 Example:
 
 : #+startup: show3levels
 
 *** New =u= table formula flag to enable Calc units simplification mode
 
 A new =u= mode flag for Calc formulas in Org tables has been added to
 enable Calc units simplification mode.
 
 *** Support fontification of inline export snippets
 
 See [[msg:87im57fh8j.fsf@gmail.com][this thread]].
 
 *** New command =org-refile-reverse= bound to =C-c C-M-w=
 
 You can now use =C-c C-M-w= to run ~org-refile-reverse~.
 
 It is almost identical to ~org-refile~, except that it temporarily
 toggles how ~org-reverse-note-order~ applies to the current buffer.
 So if ~org-refile~ would append the entry as the last entry under the
 target heading, ~org-refile-reverse~ will prepend it as the first
 entry, and vice-versa.
 
 *** LaTeX attribute ~:float~ now passes through arbitrary values
 
 LaTeX users are able to define arbitrary float types, e.g. with the
 float package.  The Org mode LaTeX exporter is now able to process and
 export arbitrary float types.  The user is responsible for ensuring
 that Org mode configures LaTeX to process any new float type.
 
 *** Support verse and quote blocks in LaTeX export
 
 The LaTeX export back-end accepts four attributes for verse blocks:
 =:lines=, =:center=, =:versewidth= and =:latexcode=. The three first
 require the external LaTeX package =verse.sty=, which is an extension
 of the standard LaTeX environment.
 
 The LaTeX export back-end accepts two attributes for quote blocks:
 =:environment=, for an arbitrary quoting environment (the default
 value is that of =org-latex-default-quote-environment=: ="quote"=) and
 =:options=.
 
 *** =org-set-tags-command= selects tags from ~org-global-tags-completion-table~
 
 Let ~org-set-tags-command~ TAB fast tag completion interface complete
 tags including from both buffer local and user defined persistent
 global list (~org-tag-alist~ and ~org-tag-persistent-alist~).  Now
 option ~org-complete-tags-always-offer-all-agenda-tags~ is honored.
 
 *** Clocktable option =:formula %= now shows the per-file time percentages
 
 This change only has an effect when multiple files are contributing to
 a given clocktable (such as when =:scope agenda= has been specified).
 The existing behavior is that such tables have an extra 'File' column,
 and each individual file that contributes has its own summary line
 with the headline value '*File time*'.  Those summary rows also
 produce a rollup time value for the file in the 'Time' column.
 
 Prior to this change, the built-in =%= formula did not produce a
 calculation for those per-file times in the '%' column (the relevant
 cells in the '%' column were blank).  With this change, the percentage
 contribution of each individual file time to the total time is shown.
 
 The more agenda files you have, the more useful this behavior becomes.
 
 *** =ob-python.el= improvements to =:return= header argument
 
 The =:return= header argument in =ob-python= now works for session
 blocks as well as non-session blocks.  Also, it now works with the
 =:epilogue= header argument -- previously, setting the =:return=
 header would cause the =:epilogue= to be ignored.
 
 This change allows more easily moving boilerplate out of the main code
 block and into the header. For example, for plotting, we need to add
 boilerplate to save the figure to a file and return the
 filename. Instead of doing this within the code block, we can now
 handle it through the header arguments as follows:
 
 #+BEGIN_SRC org
 ,#+header: :var fname="/home/jack/tmp/plot.svg"
 ,#+header: :epilogue plt.savefig(fname)
 ,#+header: :return fname
 ,#+begin_src python :results value file
   import matplotlib, numpy
   import matplotlib.pyplot as plt
   fig=plt.figure(figsize=(4,2))
   x=numpy.linspace(-15,15)
   plt.plot(numpy.sin(x)/x)
   fig.tight_layout()
 ,#+end_src
 
 ,#+RESULTS:
 [[file:/home/jack/tmp/plot.svg]]
 #+END_SRC
 
 As another example, we can use =:return= with the external [[https://pypi.org/project/tabulate/][tabulate]]
 package, to convert pandas Dataframes into orgmode tables:
 
 #+begin_src org
 ,#+header: :prologue from tabulate import tabulate
 ,#+header: :return tabulate(table, headers=table.columns, tablefmt="orgtbl")
 ,#+begin_src python :results value raw :session
   import pandas as pd
   table = pd.DataFrame({
       "a": [1,2,3],
       "b": [4,5,6]
   })
 ,#+end_src
 
 ,#+RESULTS:
 |   | a | b |
 |---+---+---|
 | 0 | 1 | 4 |
 | 1 | 2 | 5 |
 | 2 | 3 | 6 |
 #+end_src
 
 *** Display images with width proportional to the buffer text width
 
 Previously, if you used a =:width= attribute like =#+attr_html: :width 70%= or
 =#+attr_latex: :width 0.7\linewidth= this would be interpreted as a 70px wide and
 0.7px wide width specification respectively.
 
 Now, percentages are transformed into floats (i.e. 70% becomes 0.7),
 and float width specifications between 0.0 and 2.0 are now interpreted
 as that portion of the text width in the buffer. For instance, the
 above examples of =70%= and =0.7\linewidth= will result in an image
 with width equal to the pixel-width of the buffer text multiplied by 0.7.
 
 This functionality is implemented in a new function,
 ~org-display-inline-image--width~ which contains the width
 determination logic previously in ~org-display-inline-images~ and the
 new behavior.
 
 ** New options
 *** Option ~org-hidden-keywords~ now also applies to #+SUBTITLE:
 
 The option ~org-hidden-keywords~ previously applied
 to #+TITLE:, #+AUTHOR:, #+DATE:, and #+EMAIL:.  Now it can also be
 used to hide the #+SUBTITLE: keyword.
 
 *** New formatting directive ~%L~ for org-capture
 
 The new ~%L~ formatting directive contains the bare link target, and
 may be used to create links with programmatically generated
 descriptions.
 
 *** New option ~org-id-ts-format~
 
 Earlier, IDs generated using =ts= method had a hard-coded format (i.e. =20200923T160237.891616=).
 The new option allows user to customize the format.
 Defaults are unchanged.
 
 *** New argument for ~file-desc~ babel header
 
 It is now possible to provide the =file-desc= header argument for a
 babel source block but omit the description by passing an empty vector
 as an argument (i.e., :file-desc []).  This can be useful because
 providing =file-desc= without an argument results in the result of
 =file= being used in the description.  Previously, the only way to
 omit a file description was to omit the header argument entirely,
 which made it difficult/impossible to provide a default value for
 =file-desc=.
 
 *** New option to set ~org-link-file-path-type~ to a function
 
 ~org-link-file-path-type~ can now be set to a function that takes the
 full filename as an argument and returns the path to link to.
 
 For example, if you use ~project.el~, you can set this function to use
 relative links within a project as follows:
 
 #+begin_src emacs-lisp
 (setq (org-link-file-path-type
        (lambda (path)
          (let* ((proj (project-current))
                 (root (if proj (project-root proj) default-directory)))
            (if (string-prefix-p (expand-file-name root) path)
                (file-relative-name path)
              (abbreviate-file-name path))))))
 #+end_src
 
 *** New options and new behavior for babel LaTeX SVG image files
 
 Org babel now uses a two-stage process for converting latex source
 blocks to SVG image files (when the extension of the output file is
 ~.svg~).  The first stage in the process converts the latex block into
 a PDF file, which is then converted into an SVG file in the second
 stage.  The TeX->PDF part uses the existing infrastructure for
 ~org-babel-latex-tex-to-pdf~.  The PDF->SVG part uses a command
 specified in a new customization,
 ~org-babel-latex-pdf-svg-process~. By default, this uses inkscape for
 conversion, but since it is fully customizable, any other command can
 be used in its place. For instance, dvisvgm might be used here. This
 two-part processing replaces the previous use of htlatex to process
 LaTeX directly to SVG (htlatex is still used for HTML conversion).
 
 Conversion to SVG exposes a number of additional customizations that
 give the user full control over the contents of the latex source
 block. ~org-babel-latex-preamble~, ~org-babel-latex-begin-env~ and
 ~org-babel-latex-end-env~ are new customization options added to allow
 the user to specify the preamble and code that preceedes and proceeds
 the contents of the source block.
 
 *** New option ~org-html-meta-tags~ allows for HTML meta tags customization
 
 New variable ~org-html-meta-tags~ makes it possible to customize the
 =<meta>= tags used in an HTML export.  Accepts either a static list of
 values, or a function that generates such a list (see
 ~org-html-meta-tags-default~ as an example of the latter).
 
 *** Option ~org-agenda-bulk-custom-functions~ now supports collecting bulk arguments
 
 When specifying a custom agenda bulk option, you can now also specify
 a function which collects the arguments to be used with each call to
 the custom function.
 
 *** New faces to improve the contextuality of Org agenda views
 
 Four new faces improve certain styles and offer more flexibility for
 some Org agenda views: ~org-agenda-date-weekend-today~,
 ~org-imminent-deadline~, ~org-agenda-structure-secondary~,
 ~org-agenda-structure-filter~.  They inherit from existing faces in
 order to remain backward-compatible.
 
 Quoting from [[https://list.orgmode.org/87lf7q7gpq.fsf@protesilaos.com/][this thread]]:
 
 #+begin_quote
 + The 'org-imminent-deadline' is useful to disambiguate generic
   warnings from deadlines.  For example, a warning could be rendered
   in a yellow colored text and have a bold weight, whereas a deadline
   might be red and styled with italics.
 
 + The 'org-agenda-structure-filter' applies to all tag/term filters
   in agenda views that search for keywords or patterns.  It is
   designed to inherit from 'org-agenda-structure' in addition to the
   'org-warning' face that was present before (and removes the
   generic 'warning' face from one place).  This offers the benefit
   of consistency, as, say, an increase in font height or a change in
   font family in 'org-agenda-structure' will propagate to the filter
   as well.  The whole header line thus looks part of a singular
   design.
 
 + The 'org-agenda-structure-secondary' complements the above for those
   same views where a description follows the header.  For instance, the
   tags view provides information to "Press N r" to filter by a
   numbered tag.  Themes/users may prefer to disambiguate this line
   from the header above it, such as by using a less intense color or by
   reducing its height relative to the 'org-agenda-structure'.
 
 + The 'org-agenda-date-weekend-today' provides the option to
   differentiate the current date on a weekend from the current date on
   weekdays.
 #+end_quote
 
 *** New option ~org-clock-ask-before-exiting~
 
 By default, a function is now added to ~kill-emacs-query-functions~
 that asks whether to clock out and save when there's a running clock.
 Customize ~org-clock-ask-before-exiting~~ to nil to disable this new
 behavior.
 
 *** Option ~org-html-inline-image-rules~ now includes .webp
 
 By default ox-html now inlines webp images.
 
 *** ~org-html-head-include-scripts~ is now =nil= by default
 
 See [[msg:498dbe2e-0cd2-c81e-7960-4a26c566a1f7@memebeam.org][this thread]].
 
 *** New option ~org-html-content-class~
 
 This is the CSS class name to use for the top level content wrapper.
 
 *** New option ~org-babel-plantuml-svg-text-to-path~
 
 This option, nil by default, allows to add a SVG-specific post-export
 step that runs inkscape text-to-path replacement over the output file.
 
 *** You can now configure ~org-html-scripts~ and ~org-html-style-default~
 
 ~org-html-scripts~ and ~org-html-style-default~ used to be constants,
 you can now configure them.
 
 *** New option ~org-attach-git-dir~
 
 ~org-attach-git-dir~ will decide whether to use ~org-attach-git-dir~
 (the default) or use the attachment directory of the current node, if
 it is correctly configured as a Git repository.
 
 *** New option ~org-attach-sync-delete-empty-dir~
 
 ~org-attach-sync-delete-empty-dir~ controls the deletion of an empty
 attachment directory at calls of ~org-attach-sync~.  There is
 Never delete, Always delete and Query the user (default).
 
 *** ~org-babel-default-header-args~ can now be specified as closures or strings
 
 ~org-babel-default-header-args~ now also accepts closures that
 evaluate to a string. Previously, only direct strings were
 supported. These closures are evaluated when point is at the source
 block, which allows them to make use of contextual information at the
 relevant source block. One example that illustrates the usefulness of
 this addition (also given in the documentation for
 ~org-babel-default-header-args~) is:
 
 #+begin_src elisp
 (defun org-src-sha ()
   (let ((elem (org-element-at-point)))
     (concat (sha1 (org-element-property :value elem)) \".svg\")))
 
 (setq org-babel-default-header-args:latex
       `((:results . \"file link replace\")
         (:file . (lambda () (org-src-sha)))))
 #+end_src
 
 This will set the ~:file~ header argument to the sha1 checksum of the
 contents of the current latex source block.
 
 Finally, the closures are only evaluated if they're not overridden for
 a source block. This improves efficiency in cases where the result of
 a compute-expensive closure would otherwise be discarded.
 
 ** Miscellaneous
 *** =org-bibtex= includes =doi= and =url= entries when exporting to BiBTeX
 =doi= and =url= entries have been made optional for some publication
 types and will be exported if present for those types.
 *** Missing or empty placeholders in "eval" macros are now =nil=
 They used to be the empty string.
 *** =org-goto-first-child= now works before first heading
 
 When point is before first heading =org-goto-first-child= will move
 point to the first child heading, or return nil if no heading exist
 in buffer.  This is in line with the fact that everything before first
 heading is regarded as outline level 0, i.e. the parent level of all
 headings in the buffer.
 
 Previously =org-goto-first-child= would do nothing before first
 heading, except return nil.
 
 *** Faces of all the heading text elements now conform to the headline face
 
 In the past, faces of todo keywords, emphasized text, tags, and
 priority cookies inherited =default= face.  The resulting headline
 fontification was not always consistent, as discussed in [[msg::87h7sawubl.fsf@protesilaos.com][this bug
 report]].  Now, the relevant faces adapt to face used to fontify the
 current headline level.
 
 Users who prefer to keep the old behavior should change their face
 customization explicitly stating that =default= face is inherited.
 
 Example of old face customization:
 
 #+begin_src emacs-lisp
 (setq org-todo-keyword-faces '(("TODO"
                                 :background "chocolate"
                                 :height 0.75)))
 #+end_src
 
 To preserve the old behavior the above customization should be
 changed to
 
 #+begin_src emacs-lisp
 (setq org-todo-keyword-faces '(("TODO"
                                 :inherit default
                                 :background "chocolate"
                                 :height 0.75)))
 #+end_src
 
 *** Storing ID-links before first heading uses title as description
 
 Storing links to files using ~org-store-link~ (=<C-c l>=) when
 ~org-id-link-to-org-use-id~ is not nil will now store the title as
 description of the link, if available.  If no title exists it falls
 back to the filename as before.
 
 *** Change in =org-tags-expand= signature
 
 The function does not allow for a third optional parameter anymore.
 *** LaTeX environment =#+results= are now removed
 
 If a babel src block produces a raw LaTeX environment, it will now be
 recognized as a result, and so replaced when re-evaluated.
 
 *** Tag completion now uses =completing-read-multiple=
 
 Tag completion now uses =completing-read-multiple= with a simple
 completion table, which should allow better interoperability with
 custom completion functions.
 
 *** Providing =directory-empty-p= from Emacs 28 as =org-directory-empty-p=
 
 *** =org-get-last-sibling= marked as obsolete
 
 Use =org-get-previous-sibling= instead.  This is just a rename to have
 a more consistent naming.  E.g. recall the pair of funtctions
 =next-line= / =previous-line=.
 
 *** Make org-protocol compatible with =URLSearchParams= JavaScript class
 
 Decoder of query part of org-protocol URI recognizes "+" as an encoded
 space characters now, so it is possible to avoid call to =encodeURIComponent=
 for each parameter and use more readable expression in bookmarklet:
 
 #+begin_example
 'org-protocol://store-link?' + new URLSearchParams({
       url: location.href, title: document.title})
 #+end_example
 
 *** Remove obsolete LaTeX packages from ~org-latex-default-packages-alist~
 
 The LaTeX packages =grffile= and =textcomp= are redundant, with their
 capabilities being merged into =graphicx= and the LaTeX core
 respectively a while ago.
 
 * Version 9.4
 ** Incompatible changes
 *** Possibly broken internal file links: please check and fix
 
 A bug has been affecting internal links to headlines, like
 
 : [[*Headline][A link to a headline]]
 
 Storing a link to a headline may have been broken in your setup and
 those links may appear as
 
 : [[*TODO Headline][A link to a headline]]
 
 Following the link above will result in an error: the TODO keyword
 should not be part of internal file links.
 
 You can use the following command to fix links in an Org buffer:
 
 #+begin_src emacs-lisp
 (defun org-fix-links ()
   "Fix ill-formatted internal links.
 E.g. replace [[*TODO Headline][headline]] by [[*Headline][headline]].
 Go through the buffer and ask for the replacement."
   (interactive)
   (visible-mode 1)
   (save-excursion
     (goto-char (point-min))
     (let ((regexp (format "\\[\\[\\*%s\\s-+"
                           (regexp-opt org-todo-keywords-1 t))))
       (while (re-search-forward regexp nil t)
         (when (and (save-excursion
                      (goto-char (match-beginning 0))
                      (looking-at-p org-link-bracket-re))
                    (y-or-n-p "Fix link (remove TODO keyword)? "))
 	  (replace-match "[[*")))))
   (visible-mode -1))
 #+end_src
 
 *** Calling conventions changes when opening or exporting custom links
 
 This changes affects export back-ends, and libraries providing new
 link types.
 
 Function used in ~:follow~ link parameter is required to accept a
 second argument.  Likewise, function used in ~:export~ parameter needs
 to accept a fourth argument.  See ~org-link-set-parameters~ for
 details.
 
 Eventually, the function ~org-export-custom-protocol-maybe~ is now
 called with a fourth argument.  Even though the 3-arguments definition
 is still supported, at least for now, we encourage back-end developers
 to switch to the new signature.
 
 *** Python session return values must be top-level expression statements
 
 Python blocks with ~:session :results value~ header arguments now only
 return a value if the last line is a top-level expression statement.
 Also, when a None value is returned, "None" will be printed under
 "#+RESULTS:", as it already did with ~:results value~ for non-session
 blocks.
 
 *** In HTML export, change on how outline-container-* is set
 
 When the headline has a =CUSTOM_ID=, use this custom id to build the
 div id.  For example, if you have =:CUSTOM_ID: my-headline= then the
 resulting <div> will be ~<div id="outline-container-my-headline">~.
 
 You may want to check whether your HTML files are rendered differently
 after this change.
 
 *** New keybinding =<C-c C-TAB>= for ~org-force-cycle-archived~
 
 ~org-force-cycle-archived~ used to be associated with =<C-TAB>= but
 this keybinding is used in Emacs for navigating tabs in Emacs.  The
 new keybinding is =<C-c C-TAB>=.
 
 ** New default settings for some options
 
 These options now default to =t=:
 
 - ~org-loop-over-headlines-in-active-region~
 - ~org-fontify-done-headline~
 - ~org-src-tab-acts-natively~
 
 You may want to read the docstrings of these options to understand the
 consequences of this change.
 
 Also, ~org-startup-folded~ now defaults to ~showeverything~.
 
 ** New features
 
 *** =RET= and =C-j= now obey ~electric-indent-mode~
 
 Since Emacs 24.4, ~electric-indent-mode~ is enabled by default.  In
 most major modes, this causes =RET= to reindent the current line and
 indent the new line, and =C-j= to insert a newline without indenting.
 
 Org mode now obeys this minor mode: when ~electric-indent-mode~ is
 enabled, and point is neither in a table nor on a timestamp or a link:
 
 - =RET= (bound to ~org-return~) reindents the current line and indents
   the new line;
 - =C-j= (bound to the new command ~org-return-and-maybe-indent~)
   merely inserts a newline.
 
 To get the previous behavior back, disable ~electric-indent-mode~
 explicitly:
 
 #+begin_src emacs-lisp
 (add-hook 'org-mode-hook (lambda () (electric-indent-local-mode -1)))
 #+end_src
 
 Alternatively, if you wish to keep =RET= as the "smart-return" key,
 but dislike Org's default indentation of sections, you may prefer to
 customize ~org-adapt-indentation~ to either nil or =headline-data=.
 
 *** New allowed value for ~org-adapt-indentation~
 
 ~org-adapt-indentation~ now accepts a new value, =headline-data=.
 
 When set to this value, Org will only adapt indentation of headline
 data lines, such as planning/clock lines and property/logbook drawers.
 Also, with this setting, =org-indent-mode= will keep these data lines
 correctly aligned with the headline above.
 
 *** Looping agenda commands over headlines
 
 ~org-agenda-loop-over-headlines-in-active-region~ allows you to loop
 agenda commands over the active region.
 
 When set to =t= (the default), loop over all headlines.  When set to
 ='start-level=, loop over headlines with the same level as the first
 headline in the region.  When set to a string, loop over lines
 matching this regular expression.
 
 *** New minor mode ~org-table-header-line-mode~
 
 Turn on the display of the first data row of the table at point in the
 window header line when this first row is not visible anymore in the
 buffer.
 
 You can activate this minor mode by default by setting the option
 ~org-table-header-line-p~ to =t=.  You can also change the face for
 the header line by customizing the ~org-table-header~ face.
 
 *** New minor mode ~org-list-checkbox-radio-mode~
 
 When this minor mode is on, checkboxes behave as radio buttons: if a
 checkbox is turned on, other checkboxes at the same level are turned
 off.
 
 If you want to occasionally toggle a checkbox as a radio button
 without turning this minor mode on, you can use =<C-c C-x C-r>= to
 call ~org-toggle-radio-button~.
 
 You can also add =#+ATTR_ORG: :radio t= right before the list to tell
 Org to use radio buttons for this list only.
 
 *** Numeric priorities are now allowed (up to 65)
 
 You can now set ~org-priority-highest/lowest/default~ to integers to
 use numeric priorities globally or set, for example
 
 #+PRIORITIES: 1 10 5
 
 to define a buffer-local range and default for priorities.  Priority
 commands should work as usual.  You cannot use numbers superior to 64
 for numeric priorities, as it would clash with priorities like [#A]
 where the "A" is internally converted to its numeric value of 65.
 
 *** Property drawers allowed before first headline
 
 Property drawers are now allowed before the first headline.
 
 Org mode is moving more towards making things before the first
 headline behave just as if it was at outline level 0.  Inheritance for
 properties will work also for this level.  In other words: defining
 things in a property drawer before the first headline will make them
 "inheritable" for all headlines.
 
 *** Refinement in window behavior on exiting Org source buffer
 
 After editing a source block, Org will restore the window layout when
 ~org-src-window-setup~ is set to a value that modifies the layout.
 
 *** Display remote inline images
 
 Org now knows how to display remote images inline.
 
 Whether the images are actually displayed is controlled by the new
 option ~org-display-remote-inline-images~.
 
 *** New option to resolve open clock at a provided time
 
 ~org-resolve-clocks~ now has a `t' option, which works just like the
 `k' option, but the user specifies a time of day, not a number of
 minutes.
 
 *** New step value =semimonth= accepted for clock tables
 
 *** Allow text rescaling in column view
 
 You can now use =C-x C-+= in column view: the columns face size will
 increase or decrease, together with the column header size.
 
 *** New startup option =#+startup: num=
 
 When this startup option is set, display headings as numerated.
 
 Use =#+startup: nonum= to turn this off.
 
 *** New tool for custom links
 
 Org provides a new tool ~org-link-open-as-file~, useful when defining
 new link types similar to "file"-type links.  See docstring for
 details.
 
 *** New optional numeric argument for ~org-return~
 
 In situations where ~org-return~ calls ~newline~, multiple newlines
 can now be inserted with this prefix argument.
 
 *** New source code block header argument =:file-mode=
 
 Source code block header argument =:file-mode= can set file
 permissions if =:file= argument is provided.
 
 *** =ob-C.el= allows the inclusion of non-system header files
 
 In C and C++ blocks, ~:includes~ arguments that do not start with a
 ~<~ character will now be formatted as double-quoted ~#include~
 statements.
 
 *** =ob-clojure.el= supports inf-clojure.el and ClojureScript evaluation
 
 You can now set ~(setq org-babel-clojure-backend 'inf-clojure)~ and
 evaluate Clojure source blocks using [[https://github.com/clojure-emacs/inf-clojure][inf-clojure]].  With a header
 argument like =:alias "alias"= the Clojure REPL will boot with
 =clojure -Aalias=.  Otherwise Clojure will boot with =lein=, =boot= or
 =tools.deps=, depending on whether the current directory contains a
 =project.clj=, =build.boot= or =deps.edn=, falling back on
 ~inf-clojure-generic-cmd~ in case no such file is present.
 
 Also, when using [[https://github.com/clojure-emacs/cider][cider]], you can now use =#+begin_src clojurescript= to
 execute ClojureScript code from Org files.  Note that this works only
 if your Org file is associated with a cider session that knows how to
 run ClojureScript code.  A bare =lein repl= session outside of a
 directory configured for ClojureScript will /not/ work.
 
 *** =ob-java.el= supports Java command line arguments
 
 Babel Java blocks recognize header argument =:cmdargs= and pass its
 value in call to =java=.
 
 *** =ob-screen.el= now accepts =:screenrc= header argument
 
 Screen blocks now recognize the =:screenrc= header argument and pass
 its value to the screen command via the "-c" option. The default
 remains =/dev/null= (i.e. a clean screen session)
 
 *** =ob-plantuml=: now supports using PlantUML executable to generate diagrams
 
 Set =org-plantuml-exec-mode= to ='plantuml= in order to use the
 executable instead of JAR. When using an executable it is also
 possible to configure executable location as well as arguments via:
 =org-plantuml-executable-path= and =org-plantuml-executable-args=.
 
 ** New commands
 *** ~org-table-header-line-mode~
 
 Turn on a minor mode to display the first data row of the table at
 point in the header-line when the beginning of the table is invisible.
 
 *** ~org-agenda-ctrl-c-ctrl-c~
 
 Hitting =<C-c C-c>= in an agenda view now calls ~org-agenda-set-tags~.
 
 *** ~org-hide-entry~
 
 This command is the counterpart of ~org-show-entry~.
 
 *** ~org-columns-toggle-or-columns-quit~
 
 =<C-c C-c>= bound to ~org-columns-toggle-or-columns-quit~ replaces the
 recent ~org-columns-set-tags-or-toggle~.  Tag setting is still
 possible via column view value edit or with =<C-c C-q>=.
 
 *** ~org-datetree-find-month-create~
 
 Find or create a month entry for a date.
 
 ** New options and settings
 *** New option ~org-html-prefer-user-labels~
 
 When non-nil, use =NAME= affiliated keyword, or raw target values, to
 generate anchor's ID.  Otherwise, consistently use internal naming
 scheme.
 
 =CUSTOM_ID= values are still always used, when available.
 *** New option for using tabs in ~org-agenda-window-setup~
 
 Choosing ~other-tab~ for ~org-agenda-window-setup~ will open the
 agenda view in a new tab.  This will work with versions of Emacs since
 27.1 when ~tab-bar-mode~ was introduced.
 
 *** New option ~org-table-header-line-p~
 
 Setting this option to =t= will activate ~org-table-header-line-mode~
 in org-mode buffers.
 
 *** New option ~org-startup-numerated~
 
 When this option is =t=, Org files will start using ~(org-num-mode 1)~
 and headings will be visually numerated.
 
 You can turn this on/off on a per-file basis with =#+startup: num= or
 =#+startup: nonum=.
 
 *** New option ~org-clock-auto-clockout-timer~
 
 When this option is set to a number and the user configuration
 contains =(org-clock-auto-clockout-insinuate)=, Org will clock out the
 currently clocked in task after that number of seconds of idle time.
 
 This is useful when you often forget to clock out before being idle
 and don't want to have to manually set the clocking time to take into
 account.
 
 *** New option to group captured datetime entries by month
 
 A new `:tree-type month' option was added to org-capture-templates to
 group new datetime entries by month.
 
 *** New option to show source buffers using "plain" display-buffer
 
 There is a new option ~plain~ to ~org-src-window-setup~ to show source
 buffers using ~display-buffer~.  This allows users to control how
 source buffers are displayed by modifying ~display-buffer-alist~ or
 ~display-buffer-base-action~.
 
 *** New option ~org-archive-subtree-save-file-p~
 
 Archiving a subtree used to always save the target archive buffer.
 Commit [[git::b186d1d7][b186d1d7]] changed this behavior by always not saving the target
 buffer, because batch archiving from agenda could take too much time.
 
 This new option ~org-archive-subtree-save-file-p~ defaults to the
 value =from-org= so that archiving a subtree will save the target
 buffer when done from an org-mode buffer, but not from the agenda.
 You can also set this option to =t= or to =from-agenda=.
 
 *** New option ~org-show-notification-timeout~
 
 This option will add a timeout to notifications.
 
 *** New option ~org-latex-to-html-convert-command~
 
 This new option allows you to convert a LaTeX fragment directly into
 HTML.
 
 *** New option ~org-babel-shell-results-defaults-to-output~
 
 By default, source code blocks are executed in "functional mode": it
 means that the results of executing them are the value of their last
 statement (see [[https://orgmode.org/manual/Results-of-Evaluation.html][the documentation]].)
 
 The value of a shell script's execution is its exit code.  But most
 users expect the results of executing a shell script to be its output,
 not its exit code.
 
 So we introduced this option, that you can set to nil if you want to
 stick using ~:results value~ as the implicit header.
 
 In all Babel libraries, the absence of a ~:results~ header should
 produce the same result than setting ~:results value~, unless there is
 an option to explicitly create an exception.
 
 See [[msg:CA+A2iZaziAfMeGpBqL6qGrzrWEVvLvC0DUw++T4gCF3NGuW-DQ@mail.gmail.com][this thread]] for more context.
 
 *** New option in ~org-attach-store-link-p~
 
 ~org-attach-store-link-p~ has a new option to store a file link to the
 attachment.
 *** New option ~org-fontify-todo-headline~
 
 This feature is the same as ~org-fontify-done-headline~, but for TODO
 headlines instead.  This allows you to distinguish TODO headlines from
 normal headlines.  The face can be customized via ~org-headline-todo~.
 
 *** New default value for ~org-file-apps~
 
 The new value uses Emacs as the application for opening directory.
 
 *** New hook ~org-agenda-filter-hook~
 
 Functions in this hook are run after ~org-agenda-filter~ is called.
 
 ** Removed or renamed functions and variables
 *** Deprecated ~org-flag-drawer~ function
 
 Use ~org-hide-drawer-toggle~ instead.
 
 *** Deprecated ~org-hide-block-toggle-maybe~ function
 
 Use ~org-hide-block-toggle~ instead.
 
 *** Deprecated ~org-hide-block-toggle-all~ function
 
 This function was not used in the code base, and has no clear use
 either.  It has been marked for future removal.  Please contact the
 mailing list if you use this function.
 
 *** Deprecated ~org-return-indent~ function
 
 In Elisp code, use ~(org-return t)~ instead.  Interactively, =C-j= is
 now bound to ~org-return-and-maybe-indent~, which indents the new line
 when ~electric-indent-mode~ is disabled.
 
 *** Removed ~org-maybe-keyword-time-regexp~
 
 The variable was not used in the code base.
 
 *** Removed ~org-export-special-keywords~
 
 The variable was not used in the code base.
 
 *** Renamed ~org-at-property-block-p~
 
 The new name is ~org-at-property-drawer-p~, which is less confusing.
 
 *** Renamed ~org-columns-set-tags-or-toggle~
 
 See [[*~org-columns-toggle-or-columns-quit~]].
 
 *** Renamed priority options
 
 From ~org-lowest-priority~ to ~org-priority-lowest~.
 From ~org-default-priority~ to ~org-priority-default~.
 From ~org-highest-priority~ to ~org-priority-highest~.
 From ~org-enable-priority-commands~ to ~org-priority-enable-commands~.
 From ~org-show-priority~ to ~org-priority-show~.
 
 ** Miscellaneous
 *** =ob-screen.el= now respects screen =:session= name
 
 Screen babel session are now named based on the =:session= header
 argument (defaults to ~default~).
 
 Previously all session names had  ~org-babel-session-~ prepended.
 
 *** Forward/backward paragraph functions in line with the rest of Emacs
 
 ~org-forward-paragraph~ and ~org-backward-paragraph~, bound to
 ~<C-UP>~ and ~<C-DOWN>~ functions mimic more closely behavior of
 ~forward-paragraph~ and ~backward-paragraph~ functions when
 available.
 
 They also accept an optional argument for multiple calls.
 
 See their docstring for details.
 *** ~org-table-to-lisp~ no longer checks if point is at a table
 
 The caller is now responsible for the check.  It can use, e.g.,
 ~org-at-table-p~.
 
 The function is also much more efficient than it used to be, even on
 very large tables.
 
 *** New function ~org-collect-keywords~
 *** Drawers' folding use an API similar to block's
 
 Tooling for folding drawers interactively or programmatically is now
 on par with block folding.  In particular, ~org-hide-drawer-toggle~,
 a new function, is the central place for drawer folding.
 
 *** Duration can be read and written in compact form
 
 ~org-duration-to-minutes~ understands =1d3h5min= as a duration,
 whereas ~org-duration-from-minutes~ can output this compact form if
 the duration format contains the symbol ~compact~.
 
 *** C-n, C-p, SPC and DEL in agenda commands dispatch window
 
 You can now use =<C-n>=, =<C-p>=, =<SPC>= and =<DEL>= key to scroll up
 and down the agenda and attach dispatch window.
 
 *** =<C-c C-c>= in agenda calls ~org-agenda-set-tags~
 
 Both =<C-c C-q>= and =<C-c C-c>= set the tags of the headline in the
 Org buffer.  Both keybindings are now available from the agenda too.
 
 *** Allow to use an empty HTML extension
 
 Using =(setq org-html-extension "")= or setting the HTML extension in
 any fashion will produce the expected output, with no trailing period
 to the resulting HTML file.
 
 *** Handle repeated tasks with =.+= type and hours step
 
 A task using a =.+= repeater and hours step is repeated starting from
 now. E.g.,
 
 #+begin_example
 ,,** TODO Wash my hands
    DEADLINE: <2019-04-05 08:00 Sun .+1h>
    Marking this DONE shifts the date to exactly one hour from now.
 #+end_example
 
 *** The format of equation reference in HTML export can now be specified
 
 By default, HTML (via MathJax) and LaTeX export equation references
 using different commands. LaTeX must use ~\ref{%s}~ because it is used
 for all labels; however, HTML (via MathJax) uses ~\eqref{%s}~ for
 equations producing inconsistent output. New option
 ~org-html-equation-reference-format~ sets the command used in HTML
 export.
 
 *** =ob-haskell.el= supports compilation with =:compile= header argument
 
 By default, Haskell blocks are interpreted. By adding =:compile yes=
 to a Haskell source block, it will be compiled, executed and the
 results will be displayed.
 
 *** Support for ~org-edit-special~ with LaTeX fragments
 
 Calling ~org-edit-special~ on an inline LaTeX fragment calls a new
 function, ~org-edit-latex-fragment~. This functions in a comparable
 manner to editing inline source blocks, bringing up a minibuffer set
 to LaTeX mode. The math-mode deliminators are read only.
 
 *** ~org-capture-current-plist~ is now accessible during ~org-capture-mode-hook~
 *** New =org-refile.el= file
 
 Org refile variables and functions have been moved to a new file.
 
 *** The end of a 7 years old bug
 
 This bug [[https://lists.gnu.org/archive/html/emacs-orgmode/2013-08/msg00072.html][originally reported]] by Matt Lundin and investigated by Andrew
 Hyatt has been fixed.  Thanks to both of them.
 
 * Version 9.3
 
 ** Incompatible changes
 *** Change bracket link escaping syntax
 
 Org used to percent-encode sensitive characters in the URI part of the
 bracket links.
 
 Now, escaping mechanism uses the usual backslash character, according
 to the following rules:
 
 1. All =[= and =]= characters in the URI must be escaped;
 2. Every =\= character preceding either =[= or =]= must be escaped;
 3. Every =\= character at the end of the URI must be escaped.
 
 When in doubt, use the function ~org-link-escape~ in order to turn
 a link string into its properly escaped form.
 
 The following function will help switching your links to the new
 syntax:
 
 #+begin_src emacs-lisp
 (defun org-update-link-syntax (&optional no-query)
   "Update syntax for links in current buffer.
 Query before replacing a link, unless optional argument NO-QUERY
 is non-nil."
   (interactive "P")
   (org-with-point-at 1
     (let ((case-fold-search t))
       (while (re-search-forward "\\[\\[[^]]*?%\\(?:2[05]\\|5[BD]\\)" nil t)
         (let ((object (save-match-data (org-element-context))))
           (when (and (eq 'link (org-element-type object))
                      (= (match-beginning 0)
                         (org-element-property :begin object)))
             (goto-char (org-element-property :end object))
             (let* ((uri-start (+ 2 (match-beginning 0)))
                    (uri-end (save-excursion
                               (goto-char uri-start)
                               (re-search-forward "\\][][]" nil t)
                               (match-beginning 0)))
                    (uri (buffer-substring-no-properties uri-start uri-end)))
               (when (or no-query
                         (y-or-n-p
                          (format "Possibly obsolete URI syntax: %S.  Fix? "
                                  uri)))
                 (setf (buffer-substring uri-start uri-end)
                       (org-link-escape (org-link-decode uri)))))))))))
 #+end_src
 
 The old ~org-link-escape~ and ~org-link-unescape~ functions have been
 renamed into ~org-link-encode~ and ~org-link-decode~.
 
 *** Change match group number in ~org-link-bracket-re~
 
 Link description, if any, is located in match group 2 instead of match
 group 3.
 
 *** ob-clojure does not auto prepend ~(ns ..)~ statement anymore
 
 When tangling, user usually just wants to tangle literally code instead
 of prepend inserting a ~(ns ..)~ statement before source block
 code.  Now, when you have no ~:ns~ header argument specified, this
 behavior will not happen automatically.
 
 *** Change in behavior on exit from an Org edit buffer
 
 Org will no longer attempt to restore the window configuration in the
 frame to which the user returns after editing a source block with
 ~org-edit-src-code~.  Instead, the window configuration will remain as
 it is.
 
 *** Change default value for ~org-email-link-description-format~
 
 When linking from a mail buffer, Org used to truncate the subject of
 the message to 30 characters in order to build the description of the
 link.  This behavior was considered as too surprising.  As
 a consequence, Org no longer truncates subjects.
 
 You can get the old behavior back with the following:
 
 : (setq org-email-link-description-format "Email %c: %.30s")
 
 *** ~:file~ header argument no longer assume "file" ~:results~
 
 The "file" ~:results~ value is now mandatory for a code block
 returning a link to a file.  The ~:file~ or ~:file-ext~ header
 arguments no longer imply a "file" result is expected.
 
 *** Plain numbers are hours in Column View mode
 
 See [[git:3367ac9457]] for details.
 
 *** All LaTeX preview backends use now xcolor
 
 The dvipng backend was previously relying on fg and bg parameters to
 be passed to the CLI. This didn't work when xcolor was directly or
 indirectly used in the document (e.g. tkiz is a user of xcolor). Since
 every other backend was already using xcolor to set fg and bg, the CLI
 alternative was removed and there is no more a :use-xcolor options
 since now it's implicitly always true.
 
 *** Org-Attach Git commit
 
 [[*Org-Attach has been refactored and extended][Refactoring of Org-Attach]] affected the Git commit functionality.  Not
 much, but the following changes are required if you still need to
 auto-commit attachments to git:
 
 - Customization of ~org-attach-annex-auto-get~ needs to be renamed to
   ~org-attach-git-annex-auto-get~.
 
 - Customization of ~org-attach-commit~ is no longer needed.  Instead
   one need to require the =org-attach-git= module in the startup.
 
 ** New features
 *** New option to wrap source code lines in HTML export
 
 When new option ~html-wrap-src-lines~ (with variable
 ~org-html-wrap-src-lines~) is non-nil, HTML export wraps source code
 lines in HTML ~code~ elements.
 
 *** New option to handle schedules and deadlines in iCalendar export
 
 Export ignore done tasks with a deadline when
 ~org-icalendar-use-deadline~ contains ~event-if-todo-not-done~.
 Likewise, scheduled done tasks are also ignored when
 ~org-icalendar-use-scheduled~ contains the same symbol.
 
 *** Add ~split-window-right~ option for src block edit window placement
 
 Given the increasing popularity of wide screen monitors, splitting
 horizontally may make more sense than splitting vertically.  An
 option, ~split-window-right~, to request horizontal splitting has been
 added to ~org-src-window-setup~.
 
 *** Org-Attach has been refactored and extended
 
 Org attach has been refactored and the functionality extended.  It
 should now be easier to understand how it works.  A few improvements
 and extra options have been added as well.
 
 From the initial comment in org-attach source-code:
 
 - Attachments are managed either by using a custom property DIR or by
   using property ID from org-id.  When DIR is defined, a location in
   the filesystem is directly attached to the outline node.  When
   org-id is used, attachments are stored in a folder named after the
   ID, in a location defined by ~org-attach-id-dir~.  DIR has
   precedence over ID when both parameters are defined for the current
   outline node (also when inherited parameters are taken into
   account).
 
 From now on inheritance requires no extra property and will adhere to
 ~org-attach-use-inheritance~ by default.  Inheritance can be
 customized to always be activated or never be activated in
 ~org-attach-use-inheritance~.
 
 The ATTACH_DIR property is deprecated in favor of the shorter
 property DIR.  Links to folders inside the DIR property can now be
 declared as relative links.  This is not enabled by default, but can
 be set in ~org-attach-dir-relative~.
 
 When adding new attachment to the outline node the preferred way of
 doing so can be customized.  Take a look at
 ~org-attach-preferred-new-method~.  It defaults to using ID since that
 was the behavior before this change.
 
 If both DIR and ID properties are set on the same node, DIR has
 precedence and will be used.
 
 One can now also choose to build attachment-directory-paths in a
 customized way.  This is an advanced topic, but in some case it makes
 sense to parse an ID in a different way than the default one.  Create
 your own function and add it to the beginning of
 ~org-attach-id-to-path-function~list~ if you want to customize the ID
 based folder structure.
 
 If you've used ATTACH_DIR properties to manage attachments, use the
 following code to rename that property to DIR which supports the same
 functionality.  ATTACH_DIR_INHERIT is no longer supported and is
 removed.
 
 #+begin_src emacs-lisp
   (defun org-update-attach-properties ()
       "Change properties for Org-Attach."
       (interactive)
       (org-with-point-at 1
 	(while (outline-next-heading)
 	  (let ((DIR (org--property-local-values "ATTACH_DIR" nil)))
 	    (when DIR
 	      (org-set-property "DIR" (car DIR))
 	      (org-delete-property "ATTACH_DIR"))))
 	(org-delete-property-globally "ATTACH_DIR_INHERIT")))
 #+end_src
 
 For those who hate breaking changes, even though the changes are made
 to clean things up; fear not.  ATTACH_DIR will still continue to work.
 It's just not documented any longer.  When you get the chance, run the
 code above to clean things up anyway!
 
 **** New hooks
 Two hooks are added to org-attach:
 - org-attach-after-change-hook
 - org-attach-open-hook
 
 They are added mostly for internal restructuring purposes, but can
 ofc. be used for other things as well.
 
 *** New link-type: Attachment
 
 Attachment-links are now first-class citizens.  They mimic file-links
 in everything they do but use the existing attachment-folder as a base
 when expanding the links. Both =DIR= and =ID= properties are used to
 try to resolve the links, in exactly the same way as Org-Attach uses
 those properties.
 
 *** Handle overlay specification for notes in Beamer export
 
 This aligns Beamer notes with slide overlays.
 
 *** Add support for lettered lists in Texinfo
 
 Using =:enum A= or =:enum a= Texinfo attribute switches an otherwise
 numbered list to a lettered list.
 
 *** Add a dispatcher command to insert dynamic blocks
 
 You can add new dynamic blocks with function
 ~org-dynamic-block-define~.  All such dynamic blocks can be used by
 ~org-dynamic-block-insert-dblock~ command.
 
 *** Babel
 
 **** ob-emacs-lisp sets ~lexical-binding~ in Org edit buffers
 
 When editing an Elisp src block, the editing buffer's
 ~lexical-binding~ is set according to the src block's =:lexical=
 parameter.
 
 **** Add LaTeX output support in PlantUML
 
 *** New minor mode to display headline numbering
 
 Use =<M-x org-num-mode>= to get a visual indication of the numbering
 in the outline.  The numbering is also automatically updated upon
 changes in the buffer.
 
 *** New property =HTML_HEADLINE_CLASS= in HTML export
 
 The new property =HTML_HEADLINE_CLASS= assigns a class attribute to
 a headline.
 
 *** Allow LaTeX attributes and captions for "table.el" tables
 
 Supported LaTeX attributes are ~:float~, ~:center~, ~:font~ and
 ~:caption~.
 
 *** Attach buffer contents to headline
 
 With =<b>= key from attachment dispatcher (=<C-c C-a>=), it is now
 possible to write the contents of a buffer to a file in the headline
 attachment directory.
 
 *** iCalendar export respects a =CLASS= property
 
 Set the =CLASS= property on an entry to specify a visibility class for
 that entry only during iCalendar export. The property can be set to
 anything the calendar server supports. The iCalendar standard defines
 the values =PUBLIC=, =CONFIDENTIAL=, =PRIVATE=, which can be
 interpreted as publicly visible, accessible to a specific group, and
 private respectively.
 
 This property can be inherited during iCalendar export, depending on
 the value of ~org-use-property-inheritance~.
 
 *** New parameter for =INCLUDE= keyword
 
 Add =:coding CODING-SYSTEM= to include files using a different coding
 system than the main Org document.  For example:
 
 #+begin_example
 ,#+INCLUDE: "myfile.cmd" src cmd :coding cp850-dos
 #+end_example
 
 *** New values in clock tables' step: =month= and =year=
 *** ODT export handles numbers cookies in lists
 *** New cell movement functions in tables
 
 ~S-<UP>~, ~S-<DOWN>~, ~S-<RIGHT>~, and ~S-<LEFT>~ now move cells in
 the corresponding direction by swapping with the adjacent cell.
 
 *** New option to natively fontify LaTeX snippets and environments
 
 A 'native option was added to org-highlight-latex-and-related. It
 matches the same structures than 'latex but it calls
 org-src-font-lock-fontify-block instead, thus bringing about full
 LaTeX font locking.
 
 *** ~org-clone-subtree-with-time-shift~ learned to shift backward in time
 
 =<C-c C-x c>= (~org-clone-subtree-with-time-shift~) now takes a
 negative value as a valid repeater to shift time stamps in backward
 in cloned subtrees.  You can give, for example, ‘-3d’ to shift three
 days in the past.
 
 *** Toggle display of all vs. undone scheduled habits conveniently
 
 =<C-u K>= (~org-habit-toggle-display-in-agenda~) in an agenda toggles
 the display of all habits to those which are undone and scheduled.
 This is a function for convenience.
 
 *** New parameter for SQL Babel blocks: ~:dbconnection~
 
 The new parameter ~:dbconnection~ allows to specify a connection name
 in a SQL block header: this name is used to look up connection
 parameters in ~sql-connection-alist~.
 
 *** New =:scale= attribute supported by LaTeX exporters
 
 The builtin "latex" exporters now accept and use a =:scale= attribute,
 which scales an image by a given factor.
 
 This attribute is wrapped around the =scale= parameter of LaTeX's
 =\includegraphics= (bitmap images) or a TiKZ's =\scalebox=.
 Therefore, its value should be some string palatable to LaTeX as
 a positive float Its default value is an empty string (i.e. disabled).
 
 This attribute overrides the =:width= and =:height= attributes.
 
 #+begin_example
 ,#+name: Beastie
 ,#+caption: I think I saw this curious horse already, but where ?
 ,#+LATEX_ATTR: :scale 2
 [[https://orgmode.org/img/org-mode-unicorn-logo.png]]
 #+end_example
 
 *** Allow specifying the target for a table of contents
 
 The =+TOC= keyword now accepts a =:target:= attribute that specifies
 the headline to use for making the table of contents.
 
 #+begin_example
 ,* Target
   :PROPERTIES:
   :CUSTOM_ID: TargetSection
   :END:
 ,** Heading A
 ,** Heading B
 ,* Another section
 ,#+TOC: headlines 1 :target "#TargetSection"
 #+end_example
 
 ** New functions
 *** ~org-dynamic-block-insert-dblock~
 
 Use default keybinding =<C-c C-x x>= to run command
 ~org-dynamic-block-insert-dblock~.  It will prompt user to select
 dynamic block in ~org-dynamic-block-alist~.
 
 *** ~org-table-cell-up~
 *** ~org-table-cell-down~
 *** ~org-table-cell-left~
 *** ~org-table-cell-right~
 *** ~org-habit-toggle-display-in-agenda~
 ** Removed functions and variables
 *** Removed Org Drill
 
 You can install it back from MELPA.
 
 *** ~org-babel-set-current-result-hash~
 *** ~org-capture-insert-template-here~
 *** ~org-attach-directory~
 
 It has been deprecated in favor of ~org-attach-id-dir~ which is less
 ambiguous given the restructured org-attach.
 
 *** ~org-enable-fixed-width-editor~
 
 This variable was not used through the code base.
 
 ** Miscellaneous
 *** Change signature for ~org-list-to-subtree~
 
 The function now accepts the level of the subtree as an optional
 argument.  It no longer deduces it from the current level.
 
 *** LaTeX preview is simplified
 
 Function ~org-latex-preview~, formerly known as
 ~org-toggle-latex-fragment~, has a hopefully simpler and more
 predictable behavior.  See its docstring for details.
 
 *** ~org-table-copy-down~ supports patterns
 
 When ~org-table-copy-increment~ is non-nil, it is now possible to
 increment fields like =A1=, or =0A=, i.e., any string prefixed or
 suffixed with a whole number.
 
 *** No more special indentation for description items
 
 Descriptions items are indented like regular ones, i.e., text starts
 after the bullet.  Special indentation used to introduce bugs when
 inserting sub-items in a description list.
 
 *** New hook: ~org-todo-repeat-hook~
 
 This hook was actually introduced in Org 9.2.1, but wasn't advertised.
 
 *** Org Table reads numbers starting with 0 as strings
 *** Disable fast tag selection interface via prefix arg
 
 A call of ~org-set-tags-command~ with prefix argument C-u C-u avoids
 the fast tag selection interface and instead offers the plain
 interface.
 
 *** ~:mkdirp~ now supports create directory for ~:dir~ path
 
 The ~:mkdirp~ header argument used to only work for ~:tangle~ tangle
 files. Now ~:mkdirp~ works for ~:dir~ too. This is more convenient for
 specify default directory and with ~:file~ header argument.
 
 *** New variable: ~org-agenda-breadcrumbs-separator~
 
 If breadcrumbs are showed in org-agenda with the help of "%b" format
 in ~org-agenda-prefix-format~, user can customize breadcrumbs's
 separator using ~org-agenda-breadcrumbs-separator~.
 
 *** New variable ~org-attach-commands~
 
 This variable makes it possible to customize the list of commands for
 the attachment dispatcher.
 
 *** New ID method based on timestamp
 
 If one chooses, it is now possible to create ID's based on timestamp
 (ISO8601) instead of UUID by changing org-id-method to ts.
 
 For an improved folder structure when using timestamp as ID, make sure
 to promote ~org-attach-id-ts-folder-format~ to the first element of
 ~org-attach-id-to-path-function-list~ in your configuration at the
 same time.
 
 *** New customization: ~org-id-locations-relative~
 
 New customization to make the persisting of org-id-locations between
 sessions to store links to files as relative instead of absolute.  The
 links will be stored as relative to the path of org-id-locations-file.
 
 *** ~org-ctrl-c-tab~ is functional before the first headline
 
 I.e. treat the whole file as if it was a subtree.
 
 Also fold everything below the chosen level.  Former behavior was to
 leave unfolded subtrees unfolded.
 
 *** ~org-kill-note-or-show-branches~ is functional before the first headline
 
 I.e. treat the whole file as if it was a subtree.
 
 *** Respect narrowing when agenda command is restricted to buffer
 
 *** ~org-table-insert-column~ inserts the column at point position
 
 Before, the new column was inserted to the right of the column at
 point position.
 
 *** Table column deletion now consistent with row deletion
 
 Point stays in the column at deletion, except when deleting the
 rightmost column.
 
 * Version 9.2
 ** Incompatible changes
 *** Removal of OrgStruct mode mode and radio lists
 
 OrgStruct minor mode and radio lists mechanism (~org-list-send-list~
 and ~org-list-radio-lists-templates~) are removed from the code base.
 
 Note that only radio /lists/ have been removed, not radio tables.
 
 If you want to manipulate lists like in Org in other modes, we suggest
 to use =orgalist.el=, which you can install from GNU ELPA.
 
 If you want to use Org folding outside of Org buffers, you can have a
 look at the outshine package in the MELPA repository.
 
 *** Change in the structure template expansion
 
 Org 9.2 comes with a new template expansion mechanism, combining
 ~org-insert-structure-template~ bound to ~C-c C-,~.
 
 If you customized the ~org-structure-template-alist~ option manually,
 you probably need to update it, see the docstring for accepted values.
 
 If you prefer using previous patterns, e.g. =<s=, you can activate
 them again by requiring Org Tempo library:
 
 : (require 'org-tempo)
 
 or add it to ~org-modules~.
 
 If you need complex templates, look at the ~tempo-define-template~
 function or at solutions like Yasnippet.
 
 *** Change to Noweb expansion
 
 Expansion check =:noweb-ref= only if no matching named block is found
 in the buffer.  As a consequence, any =:noweb-ref= value matching the
 name of a source block in the buffer is ignored. A simple fix is to
 give every concerned source-block, including the named one, a new,
 unique, Noweb reference.
 
 #+BEGIN_SRC org
   ,#+NAME: foo
   ,#+BEGIN_SRC emacs-lisp
     1
   ,#+END_SRC
 
   ,#+BEGIN_SRC emacs-lisp :noweb-ref foo
     2
   ,#+END_SRC
 
   ,#+BEGIN_SRC emacs-lisp :noweb yes
     <<foo>>
   ,#+END_SRC
 #+END_SRC
 
 should become
 
 #+BEGIN_SRC org
   ,#+NAME: foo
   ,#+BEGIN_SRC emacs-lisp :noweb-ref bar
     1
   ,#+END_SRC
 
   ,#+BEGIN_SRC emacs-lisp :noweb-ref bar
     2
   ,#+END_SRC
 
   ,#+BEGIN_SRC emacs-lisp :noweb yes
     <<bar>>
   ,#+END_SRC
 #+END_SRC
 
 *** Default/accepted values of ~org-calendar-to-agenda-key~
 
 The default value and accepted value of  ~org-calendar-to-agenda-key~
 changed.  This is an excerpt of the new docstring:
 
 : When set to ‘default’, bind the function to ‘c’, but only if it is
 : available in the Calendar keymap.  This is the default choice because
 : ‘c’ can then be used to switch back and forth between agenda and calendar.
 :
 : When nil, ‘org-calendar-goto-agenda’ is not bound to any key.
 
 Check the full docstring for more.
 
 *** Change the signature of the ~org-set-effort~ function
 
 Here is the new docstring:
 
 : (org-set-effort &optional INCREMENT VALUE)
 :
 : Set the effort property of the current entry.
 : If INCREMENT is non-nil, set the property to the next allowed
 : value.  Otherwise, if optional argument VALUE is provided, use
 : it.  Eventually, prompt for the new value if none of the previous
 : variables is set.
 
 *** Placeholders in =(eval ...)= macros are always strings
 
 Within =(eval ...)= macros, =$1=-like placeholders are always replaced
 with a string.  As a consequence, they must not be enclosed within
 quotes. As an illustration, consider the following, now valid,
 examples:
 
 #+begin_example
   ,#+macro: join (eval (concat $1 $2))
   ,#+macro: sum (eval (+ (string-to-number $1) (string-to-number $2)))
 
   {{{join(a,b)}}} => ab
   {{{sum(1,2)}}}  => 3
 #+end_example
 
 However, there is no change in non-eval macros:
 
 #+begin_example
   ,#+macro: disp argument: $1
 
   {{{disp(text)}}} => argument: text
 #+end_example
 
 *** =align= STARTUP value no longer narrow table columns
 
 Columns narrowing (or shrinking) is now dynamic. See [[*Dynamically
 narrow table columns]] for details. In particular, it is decoupled from
 aligning.
 
 If you need to automatically shrink columns upon opening an Org
 document, use =shrink= value instead, or in addition to align:
 
 #+BEGIN_EXAMPLE
 ,#+STARTUP: align shrink
 #+END_EXAMPLE
 
 *** ~org-get-tags~ meaning change
 
 Function ~org-get-tags~ used to return local tags to the current
 headline.  It now returns all the inherited tags in addition to the
 local tags.  In order to get the old behavior back, you can use:
 
 : (org-get-tags nil t)
 
 *** Alphabetic sorting in tables and lists
 
 When sorting alphabetically, ~org-table-sort-lines~ and ~org-sort-list~
 now sort according to the locale’s collation rules instead of by
 code-point.
 
 *** Change the name of the :tags clocktable option to :match
 
 The =:match= (renamed from =:tags=) option allows to limit clock entries
 to those matching a todo-tags matcher.
 
 The old =:tags= option can be set to =t= to display a headline's tags in a
 dedicated column.
 
 This is consistent with the naming of =org-dblock-write:columnview=
 options, where =:match= is also used as a headlines filter.
 
 ** New features
 *** Add ~:session~ support of ob-clojure for CIDER
 You can initialize source block session with Babel default keybinding
 =[C-c C-v C-z]= to use =sesman= session manager to link current
 project, directory or buffer with specific Clojure session, or
 =cider-jack-in= a new CIDER REPL if no CIDER REPLs available. In older
 CIDER version which has not =sesman= integrated, only has
 =cider-jack-in= without Clojure project is supported.
 #+begin_src clojure :session
 (dissoc Clojure 'JVM)
 (conj clojurists "stardiviner")
 #+end_src
 
 *** Add ~:results link~ support for Babel
 
 With this output format, create a link to the file specified in
 ~:file~ header argument, without actually writing any result to it:
 
 #+begin_example
 ,#+begin_src shell :dir "data/tmp" :results link :file "crackzor_1.0.c.gz"
 wget -c "https://ben.akrin.com/crackzor/crackzor_1.0.c.gz"
 ,#+end_src
 
 ,#+results:
 [[file:data/tmp/crackzor_1.0.c.gz]]
 #+end_example
 
 *** Add ~:session~ support of ob-js for js-comint
 #+begin_src js :session "*Javascript REPL*"
 console.log("stardiviner")
 #+end_src
 
 *** Add ~:session~ support of ob-js for Indium
 #+begin_src js :session "*JS REPL*"
 console.log("stardiviner")
 #+end_src
 
 *** Add ~:session~ support of ob-js for skewer-mode
 #+begin_src js :session "*skewer-repl*"
 console.log("stardiviner")
 #+end_src
 
 *** Add support for links to LaTeX equations in HTML export
 Use MathJax links when enabled (by ~org-html-with-latex~), otherwise
 add a label to the rendered equation.
 *** Org Tempo may used for snippet expansion of structure template.
 See manual and the commentary section in ~org-tempo.el~ for details.
 *** Exclude unnumbered headlines from table of contents
 Set their =UNNUMBERED= property to the special =notoc= value.  See
 manual for details.
 *** ~org-archive~ functions update status cookies
 
 Archiving headers through ~org-archive-subtree~ and
 ~org-archive-to-archive-sibling~ such as the ones listed below:
 
 #+BEGIN_SRC org
   ,* Top [1/2]
   ,** DONE Completed
   ,** TODO Working
 #+END_SRC
 
 Will update the status cookie in the top level header.
 
 *** Disable =org-agenda-overriding-header= by setting to empty string
 
 The ~org-agenda-overriding-header~ inserted into agenda views can now
 be disabled by setting it to an empty string.
 
 *** Dynamically narrow table columns
 
 With ~C-c TAB~, it is now possible to narrow a column to the width
 specified by a width cookie in the column, or to 1 character if there
 is no such cookie.  The same keybinding expands a narrowed column to
 its previous state.
 
 Editing the column automatically expands the whole column to its full
 size.
 
 *** =org-columns-summary-types= entries can take an optional COLLECT function
 
 You can use this to make collection of a property from an entry
 conditional on another entry. E.g. given this configuration:
 
 #+BEGIN_SRC emacs-lisp
   (defun custom/org-collect-confirmed (property)
     "Return `PROPERTY' for `CONFIRMED' entries"
     (let ((prop (org-entry-get nil property))
 	  (confirmed (org-entry-get nil "CONFIRMED")))
       (if (and prop (string= "[X]" confirmed))
 	  prop
 	"0")))
 
   (setq org-columns-summary-types
 	'(("X+" org-columns--summary-sum
 	   custom/org-collect-confirmed)))
 #+END_SRC
 
 You can have a file =bananas.org= containing:
 
 #+BEGIN_SRC org
   ,#+columns: %ITEM %CONFIRMED %Bananas{+} %Bananas(Confirmed Bananas){X+}
 
   ,* All shipments
   ,** Shipment 1
      :PROPERTIES:
      :CONFIRMED: [X]
      :Bananas:  4
      :END:
 
   ,** Shipment 2
      :PROPERTIES:
      :CONFIRMED: [ ]
      :BANANAS:  7
      :END:
 #+END_SRC
 
 ... and when going to the top of that file and entering column view
 you should expect to see something like:
 
 | ITEM          | CONFIRMED | Bananas | Confirmed Bananas |
 |---------------+-----------+---------+-------------------|
 | All shipments |           |      11 |                 4 |
 | Shipment 1    | [X]       |       4 |                 4 |
 | Shipment 2    | [ ]       |       7 |                 7 |
 
 #+BEGIN_EXAMPLE
   ,#+STARTUP: shrink
 #+END_EXAMPLE
 
 *** Allow to filter by tags/property when capturing colview
 
 You can now use =:match= to filter entries using a todo/tags/properties
 matcher.
 
 *** Add support for Oracle's database alias in Babel blocks
 =ob-sql= library already support running SQL blocks against an Oracle
 database using ~sqlplus~.  Now it's possible to use alias names
 defined in =TNSNAMES= file instead of specifying full connection
 parameters.  See example below.
 
 #+BEGIN_SRC org
   you can use the previous full connection parameters
   ,#+BEGIN_SRC sql :engine oracle :dbuser me :dbpassword my_insecure_password :database my_db_name :dbhost my_db_host :dbport 1521
   select sysdate from dual;
   ,#+END_SRC
 
   or the alias defined in your TNSNAMES file
   ,#+BEGIN_SRC sql :engine oracle :dbuser me :dbpassword my_insecure_password :database my_tns_alias
   select sysdate from dual;
   ,#+END_SRC
 #+END_SRC
 
 *** ~org-agenda-set-restriction-lock~ toggle agenda restriction at point
 
 You can set an agenda restriction lock with =C-x C-x <= or with =<= at the
 beginning of a headline when using Org speed commands.  Now, if there
 is already a restriction at point, hitting =<= again (or =C-x C-x <=) will
 remove it.
 
 *** Headlines can now link to themselves in HTML export
 
 When enabling ~org-html-self-link-headlines~ the headlines exported to
 HTML contain a hyperlink to themselves.
 
 ** New commands and functions
 
 *** ~org-insert-structure-template~
 
 This function can be used to wrap existing text of Org elements in
 a #+BEGIN_FOO/#+END_FOO block.  Bound to C-c C-x w by default.
 
 *** ~org-export-excluded-from-toc-p~
 
 See docstring for details.
 
 *** ~org-timestamp-to-time~
 *** ~org-timestamp-from-string~
 *** ~org-timestamp-from-time~
 *** ~org-attach-dired-to-subtree~
 
 See docstring for details.
 
 *** ~org-toggle-narrow-to-subtree~
 
 Toggle the narrowing state of the buffer: when in a narrowed state,
 widen, otherwise call ~org-narrow-to-subtree~ to narrow.
 
 This is attached to the "s" speed command, so that hitting "s" twice
 will go back to the widen state.
 
 *** ~org-browse-news~
 
 Browse https://orgmode.org/Changes.html to let users read information
 about the last major release.
 
 There is a new menu entry for this in the "Documentation" menu item.
 
 *** ~org-info-find-node~
 
 From an Org file or an agenda switch to a suitable info page depending
 on the context.
 
 The function is bound to =C-c C-x I=.
 
 ** Removed commands and functions
 *** ~org-outline-overlay-data~
 Use ~org-save-outline-visibility~ instead.
 *** ~org-set-outline-overlay-data~
 Use ~org-save-outline-visibility~ instead.
 *** ~org-get-string-indentation~
 It was not used throughout the code base.
 *** ~org-fix-indentation~
 It was not used throughout code base.
 *** ~org-context-p~
 Use ~org-element-at-point~ instead.
 *** ~org-preserve-lc~
 It is no longer used in the code base.
 *** ~org-try-structure-completion~
 Org Tempo may be used as a replacement.  See details above.
 ** Removed options
 
 *** org-babel-use-quick-and-dirty-noweb-expansion
 
 See [[*Change to Noweb expansion][Change to Noweb expansion]] for explanations.
 
 ** Miscellaneous
 
 *** New default value for ~org-texinfo-table-scientific-notation~
 
 It is now nil, which means numbers in scientific notation are not
 handled specially by default.
 
 *** New default value for ~org-latex-table-scientific-notation~
 
 It is now nil, which means numbers in scientific notation are not
 handled specially by default.
 
 *** New face: ~org-upcoming-distant-deadline~
 
 It is meant to be used as the face for distant deadlines, see
 ~org-agenda-deadline-faces~
 
 *** ~org-paste-subtree~ no longer breaks sections
 
 Unless point is at the beginning of a headline, ~org-paste-subtree~
 now pastes the tree before the next visible headline.  If you need to
 break the section, use ~org-yank~ instead.
 
 *** ~org-table-insert-column~ inserts a column to the right
 
 It used to insert it on the left.  With this change,
 ~org-table-insert-column~ and ~org-table-delete-column~ are
 reciprocal.
 
 *** ~org-publish-resolve-external-link~ accepts a new optional argument.
 *** ~org-irc.el~ now supports exporting =irc:= links properly
 
 Previously, irc links were exported by ~ox-md~ and ~ox-html~ as normal
 file links, which lead to them being broken in web browsers. Now both
 of these exporters will properly export to =irc:= links, which will
 open properly in irc clients from web browsers.
 
 *** ~org-comment-dwim~ (bound to =M-;=) now comments headings, if point is on a heading
 *** Add support for open source block in window below
 
 Set option ~org-src-window-setup~ to ~split-window-below~.
 
 *** Alphabetic sorting in headings and tags now uses the locale’s sorting rules
 
 When sorting alphabetically, ~org-sort-entries~ and
 ~org-tags-sort-function~ now sort according to the locale’s collation
 rules instead of by code-point.
 *** New speed command "k" to kill (cut) the subtree at point
 * Version 9.1
 
 ** Incompatible changes
 
 *** Variables relative to clocksum duration are obsolete
 
 ~org-time-clocksum-format~, ~org-time-clocksum-use-fractional~ and
 ~org-time-clocksum-fractional-format~ are obsolete.  If you changed
 them, consider modifying ~org-duration-format~ instead.
 
 Variable ~org-time-clocksum-use-effort-durations~ is also obsolete.
 Consider setting ~org-duration-units~ instead.
 
 *** ~org-at-timestamp-p~ optional argument accepts different values
 
 See docstrings for the allowed values.  For backward compatibility,
 ~(org-at-timestamp-p t)~ is still supported, but should be updated
 accordingly.
 
 *** ~org-capture-templates~ no longer accepts S-expressions as file names
 
 Since functions are allowed there, a straightforward way to migrate
 is to turn, e.g.,
 
 : (file (sexp))
 
 into
 
 : (file (lambda () (sexp)))
 
 *** Deleted contributed packages
 
 =org-ebib.el, =org-bullets.el= and =org-mime.el= have been deleted
 from the contrib/ directory.
 
 You can now find them here :
 
 - https://github.com/joostkremers/ebib
 - https://github.com/sabof/org-bullets
 - https://github.com/org-mime/org-mime
 
 *** Change ~org-texinfo-classes~ value
 The value cannot support functions to create sectioning commands
 anymore.  Also, the sectioning commands should include commands for
 appendices.  See the docstring for more information.
 *** Removal of ~:sitemap-sans-extension~
 
 The publishing property is no longer recognized, as a consequence of
 changes to site-map generation.
 
 You can get the same functionality by setting ~:sitemap-format-entry~
 to the following
 
 #+BEGIN_SRC elisp
 (lambda (entry style project)
   (cond ((not (directory-name-p entry))
 	 (format "[[file:%s][%s]]"
 		 (file-name-sans-extension entry)
 		 (org-publish-find-title entry project)))
 	((eq style 'tree) (file-name-nondirectory (directory-file-name entry)))
 	(t entry)))
 #+END_SRC
 
 *** Change signature for ~:sitemap-function~
 
 ~:sitemap-function~ now expects to be called with two arguments.  See
 ~org-publish-project-alist~ for details.
 
 *** Change signature for some properties in ~org-list-to-generic~
 
 ~:istart~, ~:icount~, ~:iend~ and ~:isep~ now expect the type of the
 list as their first argument.
 
 *** Change signature for ~org-get-repeater~
 The optional argument is now a string to extract the repeater from.
 See docstring for details.
 
 *** Change signature for ~org-time-string-to-time~
 See docstring for changes.
 
 *** Change order of items in ~org-agenda-time-grid~
 ~org-agenda-time-grid~ gained an extra item to allow users to customize
 the string displayed after times in the agenda. See docstring for
 details.
 
 *** ~tags-todo~ custom searches now include DONE keywords
 
 Use "/!" markup when filtering TODO keywords to get only not-done TODO
 keywords.
 
 *** ~org-split-string~ returns ~("")~ when called on an empty string
 
 It used to return nil.
 
 *** Removal of =ob-scala.el=
 
 See [[https://github.com/ensime/emacs-scala-mode/issues/114][this github issue]].
 
 You can use =ob-scala.el= as packaged in scala-mode, available from the
 MELPA repository.
 
 ** New features
 *** iCalendar export uses inheritance for TIMEZONE and LOCATION properties
 Both these properties can be inherited during iCalendar export,
 depending on the value of ~org-use-property-inheritance~.
 *** iCalendar export respects a TIMEZONE property
 Set the TIMEZONE property on an entry to specify a time zone for that
 entry only during iCalendar export.  The property value should be
 specified as in "Europe/London".
 *** ~org-attach~ can move directory contents
 When setting a new directory for an entry, org-attach offers to move
 files over from the old directory.  Using a prefix arg will reset the
 directory to old, ID based one.
 *** New Org duration library
 This new library implements tools to read and print time durations in
 various formats (e.g., "H:MM", or "1d 2h 3min"...).
 
 See ~org-duration-to-minutes~ and ~org-duration-from-minutes~
 docstrings.
 
 *** Agenda
 **** New variable : ~org-agenda-show-future-repeats~
 **** New variable : ~org-agenda-prefer-last-repeat~
 **** New variable : ~org-deadline-past-days~
 See docstring for details.
 **** Binding C-c C-x < for ~org-agenda-set-restriction-lock-from-agenda~
 **** New auto-align default setting for =org-agenda-tags-column=
 
 =org-agenda-tags-column= can now be set to =auto=, which will
 automatically align tags to the right edge of the window.  This is now
 the default setting.
 *** New value for ~org-publish-sitemap-sort-folders~
 
 The new ~ignore~ value effectively allows toggling inclusion of
 directories in published site-maps.
 
 *** Babel
 
 **** Scheme: support for tables
 **** Scheme: new variable: ~org-babel-scheme-null-to~
 
 This new custom option allows you to use an empty list or null symbol to
 format the table output, initially assigned to ~hlines~.
 
 **** Scheme: new header ~:prologue~
 
 A new block code header has been created for Org Babel that enables
 developers to prepend code to the scheme block being processed.
 
 Multiple ~:prologue~ headers can be added each of them using a string
 with the content to be added.
 
 The scheme blocks are prepared by surrounding the code in the block
 with a let form. The content of the ~:prologue~ headers are prepended
 before this let form.
 
 **** Support for hledger accounting reports added
 **** Clojure: new setting ~org-babel-clojure-sync-nrepl-timeout~
 
 Creation of a new setting to specify the Cider timeout.  By setting
 the =org-babel-clojure-sync-nrepl-timeout= setting option.  The value
 is in seconds and if set to nil then no timeout will occur.
 
 **** Clojure: new header ~:show-process~
 
 A new block code header has been created for Org Babel that enables
 developers to output the process of an ongoing process into a new
 window/buffer.
 
 You can tell Org Babel to output the process of a running code block.
 
 To show that output you only have to specify the =:show-process=
 option in the code block's header like this:
 
 #+begin_example
 ,#+BEGIN_SRC clojure :results output :show-process t
   (dotimes [n 10]
     (println n ".")
     (Thread/sleep 500))
 ,#+END_SRC
 #+end_example
 
 If =:show-process= is specified that way, then when you will run the
 code using =C-c C-c= a new window will open in Emacs.  Everything that
 is output by the REPL will immediately be added to that new window.
 
 When the processing of the code is finished, then the window and its
 buffer will be closed and the results will be reported in the
 =#+RESULTS= section.
 
 Note that the =:results= parameter's behavior is *not* changed.  If
 =silent= is specified, then no result will be displayed.  If =output=
 is specified then all the output from the window will appears in the
 results section.  If =value= is specified, then only the last returned
 value of the code will be displayed in the results section.
 
 **** Maxima: new headers ~:prologue~ and ~:epilogue~
 Babel options ~:prologue~ and ~:epilogue~ have been implemented for
 Maxima source blocks which prepend and append, respectively, the given
 code strings.  This can be useful for specifying formatting settings
 which would add clutter to exported code.  For instance, you can use
 this ~:prologue "fpprintprec: 2; linel: 50;"~ for presenting Maxima
 results in a beamer presentation.
 **** PlantUML: add support for header arguments
 
 [[https://plantuml.com/][Plantuml]] source blocks now support the [[https://orgmode.org/manual/prologue.html#prologue][~:prologue~]], [[https://orgmode.org/manual/epilogue.html#epilogue][~:epilogue~]] and
 [[https://orgmode.org/manual/var.html#var][~:var~]] header arguments.
 
 **** SQL: new engine added ~sqsh~
 
 A new engine was added to support ~sqsh~ command line utility for use
 against Microsoft SQL Server or Sybase SQL server.
 
 More information on ~sqsh~ can be found here: [[https://sourceforge.net/projects/sqsh/][sourceforge/sqsh]]
 
 To use ~sqsh~ in an *sql* =SRC_BLK= set the =:engine= like this:
 
 #+begin_example
 ,#+BEGIN_SRC sql :engine sqsh :dbhost my_host :dbuser master :dbpassword pass :database support
 Select * From Users
 Where clue > 0
 ,#+END_SRC
 #+end_example
 
 **** SQL: new engine added =vertica=
 
 A new engine was added to support vsql command line utility for use
 against HP Vertica.
 
 More information on =vsql= can be found here: [[https://my.vertica.com/docs/7.2.x/HTML/index.htm#Authoring/ConnectingToHPVertica/vsql/UsingVsql.htm][my.vertica.com]]
 
 To use =vertica= in an sql =SRC_BLK= set the =:engine= like this:
 
 #+BEGIN_EXAMPLE
   ,#+BEGIN_SRC sql :engine vertica :dbhost my_host :dbuser dbadmin :dbpassword pw :database vmart
   SELECT * FROM nodes;
   ,#+END_SRC
 #+END_EXAMPLE
 
 **** C++: New header ~:namespaces~
 
 The new ~:namespaces~ export option can be used to specify namespaces
 to be used within a C++ org source block.  Its usage is similar to
 ~:includes~, in that it can accept multiple, space-separated
 namespaces to use.  This header is equivalent to adding ~using
 namespace <name>;~ in the source block. Here is a "Hello World" in C++
 using ~:namespaces~:
 
 #+begin_example
   ,#+BEGIN_SRC C++ :results output :namespaces std :includes <iostream>
     cout << "Hello World" << endl;
   ,#+END_SRC
 #+end_example
 
 **** Support for Vala language
 
 [[https://wiki.gnome.org/Projects/Vala][Vala]] language blocks support two special header arguments:
 
 - ~:flags~ passes arguments to the compiler
 - ~:cmdline~ passes commandline arguments to the generated executable
 
 Support for [[https://orgmode.org/manual/var.html#var][~:var~]] does not exist yet, also there is no [[https://orgmode.org/manual/session.html#session][~:session~]]
 support because Vala is a compiled language.
 
 The Vala compiler binary can be changed via the ~defcustom~
 ~org-babel-vala-compiler~.
 
 *** New ~function~ scope argument for the Clock Table
 Added a nullary function that returns a list of files as a possible
 argument for the scope of the clock table.
 *** Export
 **** Implement vernacular table of contents in Markdown exporter
 Global table of contents are generated using vanilla Markdown syntax
 instead of HTML.  Also #+TOC keyword, including local table of
 contents, are now supported.
 **** Add Slovenian translations
 **** Implement ~org-export-insert-image-links~
 This new function is meant to be used in back-ends supporting images
 as descriptions of links, a.k.a. image links.  See its docstring for
 details.
 **** New macro : ~{{{n}}}~
 This macro creates and increment multiple counters in a document.  See
 manual for details.
 **** Add global macros through ~org-export-global-macros~
 With this variable, one can define macros available for all documents.
 **** New keyword ~#+EXPORT_FILE_NAME~
 Similarly to ~:EXPORT_FILE_NAME:~ property, this keyword allows the
 user to specify the name of the output file upon exporting the
 document.  This also has an effect on publishing.
 **** Horizontal rules are no longer ignored in LaTeX table math mode
 **** Use ~compilation-mode~ for compilation output
 **** Plain lists accept a new ~:separator~ attribute in Texinfo
 
 The new ~:separator~ attribute splits a tag from a description list
 item into multiple parts.  This allows to have two-column tables with
 multiple entries in the first column.  See manual for more details.
 
 **** ~latex-environment~ elements support ~caption~ keywords for LaTeX export
 *** ~org-edit-special~ can edit LaTeX environments
 
 Using ~C-c '~ on a LaTeX environment opens a sub-editing buffer.  By
 default, major mode in that buffer is ~latex-mode~, but it can be
 changed by configuring ~org-src-lang-modes~.
 
 *** ~org-list-to-generic~ includes a new property: ~:ifmt~
 
 ~:ifmt~ is a function to be called on the body of each item.  See
 ~org-list-to-generic~ documentation for details.
 
 *** New variable : ~org-bibtex-headline-format-function~
 This allow to use a different title than entry title.
 
 *** ~org-attach~ supports attaching files from URLs
 
 Using ~C-c C-a u~ prompts for a URL pointing to a file to be attached
 to the document.
 
 *** New option for ~org-refile-use-outline-path~
 ~org-refile-use-outline-path~ now supports the setting ~buffer-name~,
 which causes refile targets to be prefixed with the buffer’s
 name. This is particularly useful when used in conjunction with
 ~uniquify.el~.
 
 *** ~org-file-contents~ now allows the FILE argument to be a URL.
 This allows ~#+SETUPFILE:~ to accept a URL instead of a local file
 path.  The URL contents are auto-downloaded and saved to a temporary
 cache ~org--file-cache~.  A new optional argument ~NOCACHE~ is added
 to ~org-file-contents~.
 
 *** ~org-mode-restart~ now resets the newly added ~org--file-cache~.
 Using ~C-c C-c~ on any keyword (like ~#+SETUPFILE~) will reset the
 that file cache.
 
 *** New option : ~org-table-duration-hour-zero-padding~
 This variable allow computed durations in tables to be zero-padded.
 
 *** New mode switch for table formulas : =U=
 This mode omits seconds in durations.
 
 ** Removed functions
 
 *** Org Timeline
 
 This feature has been removed.  Use a custom agenda view, possibly
 narrowed to current buffer to achieve a similar functionality.
 
 *** ~org-agenda-skip-entry-when-regexp-matches~ is obsolete
 
 Use ~org-agenda-skip-if~ instead.
 
 *** ~org-agenda-skip-subtree-when-regexp-matches~ is obsolete
 
 Use ~org-agenda-skip-if~ instead.
 
 *** ~org-agenda-skip-entry-when-regexp-matches-in-subtree~ is obsolete
 
 Use ~org-agenda-skip-if~ instead.
 
 *** ~org-minutes-to-clocksum-string~ is obsolete
 
 Use ~org-duration-from-minutes~ instead.
 
 *** ~org-hh:mm-string-to-minutes~ is obsolete
 
 Use ~org-duration-to-minutes~ instead.
 
 *** ~org-duration-string-to-minutes~ is obsolete
 
 Use ~org-duration-to-minutes~ instead.
 
 *** ~org-gnus-nnimap-cached-article-number~ is removed.
 
 This function relied on ~nnimap-group-overview-filename~, which was
 removed from Gnus circa September 2010.
 
 ** Removed options
 
 *** ~org-agenda-repeating-timestamp-show-all~ is removed.
 
 For an equivalent to a nil value, set ~org-agenda-show-future-repeats~
 to nil and ~org-agenda-prefer-last-repeat~ to =t=.
 
 *** ~org-gnus-nnimap-query-article-no-from-file~ is removed.
 
 This variable has no effect, as it was relying on a function that was
 removed from Gnus circa September 2010.
 
 *** ~org-usenet-links-prefer-google~ is obsolete.
 
 Use ~org-gnus-prefer-web-links~ instead.
 
 *** ~org-publish-sitemap-file-entry-format~ is deprecated
 
 One can provide new ~:sitemap-format-entry~ property for a function
 equivalent to the removed format string.
 
 *** ~org-enable-table-editor~ is removed.
 
 Setting it to a nil value broke some other features (e.g., speed
 keys).
 
 *** ~org-export-use-babel~ cannot be set to ~inline-only~
 
 The variable is now a boolean.
 
 *** ~org-texinfo-def-table-markup~ is obsolete
 
 Use ~org-texinfo-table-default-markup~ instead.
 
 ** New functions
 
 *** ~org-publish-find-property~
 
 This function can be used as a tool to format entries in a site-map,
 in addition to ~org-publish-find-title~ and ~org-publish-find-date~.
 
 *** ~org-list-to-org~
 
 It is the reciprocal of ~org-list-to-lisp~, which see.
 
 *** ~org-agenda-set-restriction-lock-from-agenda~
 
 Call ~org-agenda-set-restriction-lock~ from the agenda.
 
 ** Miscellaneous
 
 *** The Library of Babel now on Worg
 
 The library-of-babel.org used to be accessible from the =doc/=
 directory, distributed with Org’s core.  It is now accessible
 from the Worg community-driven documentation [[https://orgmode.org/worg/library-of-babel.html][here]].
 
 If you want to contribute to it, please see [[https://orgmode.org/worg/org-contribute.html][how to contribute]].
 
 *** Allow multiple columns view
 
 Columns view is not limited to a single buffer anymore.
 *** Org Attach obeys ~dired-dwim-target~
 
 When a Dired buffer is opened next to the Org document being edited,
 the prompt for file to attach can start in the Dired buffer's
 directory if `dired-dwim-target' in non-nil.
 
 *** ~org-fill-paragraph~ can now fill a whole region
 *** More specific anniversary descriptions
 
 Anniversary descriptions (used in the agenda view, for instance)
 include the point in time, when the anniversary appears.  This is,
 in its most general form, just the date of the anniversary.  Or
 more specific terms, like "today", "tomorrow" or "in n days" are
 used to describe the time span.
 
 This feature allows to automatically change the description of an
 anniversary, depending on if it occurs in the next few days or
 far away in the future.
 
 *** Computed dates in tables appear as inactive time stamps
 
 *** Save point before opening a file with an unknown search option
 
 When following a file link with a search option (e.g., =::#custom-id=)
 that doesn't exist in the target file, save position before raising an
 error.  As a consequence, it is possible to jump back to the original
 document with ~org-mark-ring-goto~ (default binding =C-c &=).
 
 *** ~org-get-heading~ accepts two more optional arguments
 
 See docstring for details.
 
 *** New option ~org-babel-uppercase-example-markers~
 
 This variable is a ~defcustom~ and replaces the variable
 ~org-babel-capitalize-example-region-markers~, which is a ~defvar~ and
 is now obsolete.
 *** =INCLUDE= keywords in commented trees are now ignored.
 *** Default value for ~org-texinfo-text-markup-alist~ changed.
 
 Now ~=...=~ markup uses ~@samp{}~ instead of ~@verb{}~.  You can use
 ~@verb{}~ again by customizing the variable.
 
 *** Texinfo exports example blocks as ~@example~
 *** Texinfo exports inline source blocks as ~@code{}~
 *** Texinfo default table markup is ~@asis~
 
 It used to be ~@samp~ but ~@asis~ is neutral and, therefore, more
 suitable as a default value.
 
 *** Texinfo default process includes ~--no-split~ option
 *** New entities : ~\dollar~ and ~\USD~
 *** Support for date style URLs in =org-protocol://open-source=
 
 URLs like =https://cool-blog.com/2017/05/20/cool-post/= are covered by
 rewrite rules.
 
 *** Add (C) =COMMENT= support to ~org-structure-template-alist~
 
 * Version 9.0
 
 ** Incompatible changes
 
 *** Emacs 23 support has been dropped
 
 From now on, Org expects at least Emacs 24.3, although Emacs 24.4 or
 above is suggested.
 
 *** XEmacs support has been dropped
 
 Incomplete compatibility layer with XEmacs has been removed.  If you
 want to take over maintenance of this compatibility, please contact
 our mailing list.
 
 *** New syntax for export blocks
 
 Export blocks are explicitly marked as such at the syntax level to
 disambiguate their parsing from special blocks.  The new syntax is
 
 #+BEGIN_SRC org
 ,#+BEGIN_EXPORT backend
 ...
 ,#+END_EXPORT
 #+END_SRC
 
 instead of
 
 #+BEGIN_SRC org
 ,#+BEGIN_backend
 ...
 ,#+END_backend
 #+END_SRC
 
 As a consequence, =INCLUDE= keywords syntax is modified, e.g.,
 
 #+BEGIN_SRC org
 ,#+INCLUDE: "file.org" HTML
 #+END_SRC
 
 becomes
 
 #+BEGIN_SRC org
 ,#+INCLUDE: "file.org" export html
 #+END_SRC
 
 The following function repairs export blocks and =INCLUDE= keywords
 using previous syntax:
 
 #+BEGIN_SRC emacs-lisp
 (defun org-repair-export-blocks ()
   "Repair export blocks and INCLUDE keywords in current buffer."
   (interactive)
   (when (eq major-mode 'org-mode)
     (let ((case-fold-search t)
           (back-end-re (regexp-opt
                         '("HTML" "ASCII" "LATEX" "ODT" "MARKDOWN" "MD" "ORG"
                           "MAN" "BEAMER" "TEXINFO" "GROFF" "KOMA-LETTER")
                         t)))
       (org-with-wide-buffer
        (goto-char (point-min))
        (let ((block-re (concat "^[ \t]*#\\+BEGIN_" back-end-re)))
          (save-excursion
            (while (re-search-forward block-re nil t)
              (let ((element (save-match-data (org-element-at-point))))
                (when (eq (org-element-type element) 'special-block)
                  (save-excursion
                    (goto-char (org-element-property :end element))
                    (save-match-data (search-backward "_"))
                    (forward-char)
                    (insert "EXPORT")
                    (delete-region (point) (line-end-position)))
                  (replace-match "EXPORT \\1" nil nil nil 1))))))
        (let ((include-re
               (format "^[ \t]*#\\+INCLUDE: .*?%s[ \t]*$" back-end-re)))
          (while (re-search-forward include-re nil t)
            (let ((element (save-match-data (org-element-at-point))))
              (when (and (eq (org-element-type element) 'keyword)
                         (string= (org-element-property :key element) "INCLUDE"))
                (replace-match "EXPORT \\1" nil nil nil 1)))))))))
 #+END_SRC
 
 Moreover, ~:export-block~ keyword used in ~org-export-define-backend~ and
 ~org-export-define-derived-backend~ is no longer used and needs to be
 removed.
 
 *** Footnotes changes
 
 **** [1]-like constructs are not valid footnotes
 
 Using =[1]= as a footnote was already discouraged in the manual, since
 it introduced too many false-positives in many Org documents.  These
 constructs are now unsupported.
 
 If you used =[N]= in some of your documents, consider turning them into
 =[fn:N]=.
 
 **** /Org Footnote/ library doesn't handle non-Org buffers
 
 Commands for footnotes in an Org document no longer try to do
 something in non-Org ones.  If you need to have footnotes there,
 consider using the =footnote.el= library, shipped with Emacs.
 
 In particular, ~org-footnote-tag-for-non-org-mode-files~ no longer
 exists.
 
 *** ~org-file-apps~ no longer accepts S-expressions as commands
 
 The variable now accepts functions of two arguments instead of plain
 S-expressions.  Replacing an S-expression with an appropriate function
 is straightforward.  For example
 
 : ("pdf" . (foo))
 
 becomes
 
 : ("pdf" . (lambda (file link) (foo)))
 
 *** The ~{{{modification-time}}}~ macro can get time via =vc=
 
 The modification time will be determined via =vc.el= if the second
 argument is non-nil.  See the manual for details.
 
 *** Preparation and completion functions in publishing projects change signature
 
 Preparation and completion functions are now called with an argument,
 which is the project property list.  It used to be dynamically scoped
 through the ~project-plist~ variable.
 
 *** Old Babel header properties are no longer supported
 
 Using header arguments as property names is no longer possible.  As
 such, the following
 
 #+BEGIN_EXAMPLE
 ,* Headline
 :PROPERTIES:
 :exports: code
 :var: a=1 b=2
 :var+: c=3
 :END:
 #+END_EXAMPLE
 
 should be written instead
 
 #+BEGIN_EXAMPLE
 ,* Headline
 :PROPERTIES:
 :header-args: :exports code
 :header-args+: :var a=1 b=2
 :header-args+: :var c=3
 :END:
 #+END_EXAMPLE
 
 Please note that, however, old properties were defined at the source
 block definition.  Current ones are defined where the block is called.
 
 ** New features
 
 *** ~org-eww~ has been moved into core
 *** New org-protocol key=value syntax
 
 Org-protocol can now handle query-style parameters such as:
 
 #+begin_example
 org-protocol://store-link?url=http:%2F%2Flocalhost%2Findex.html&title=The%20title
 org-protocol://capture?template=x&title=Hello&body=World&url=http:%2F%2Fexample.com
 #+end_example
 
 Old-style links such as
 : org-protocol://store-link:/http:%2F%2Flocalhost%2Findex.html/The%20title
 continue to be supported.
 
 If you have defined your own handler functions for
 ~org-protocol-protocol-alist~, change them to accept either a property
 list (for new-style links) or a string (for old-style links).  Use
 ~org-protocol-parse-parameters~ to convert old-style links into property
 lists.
 
 *** New Org linter library
 
 ~org-lint~ can check syntax and report common issues in Org documents.
 
 *** New option ~date-tree-last~ for ~org-agenda-insert-diary-strategy~
 
 When ~org-agenda-insert-diary-strategy~ is set to ~date-tree-last~, diary
 entries are added to last in the date tree.
 
 *** New ~vbar~ entity
 
 ~\vbar~ or ~\vbar{}~ will be exported unconditionally as a =|=,
 unlike to existing ~\vert~, which is expanded as ~&vert;~ when using
 a HTML derived export back-end.
 
 *** Export
 
 **** New =#+latex_compiler= keyword to set LaTeX compiler.
 
 PDFLaTeX, XeLaTeX, and LuaLaTeX are supported.  See the manual for
 details.
 
 **** New option ~org-export-with-broken-links~
 
 This option tells the export process how to behave when encountering
 a broken internal link.  See its docstring for more information.
 
 **** Attributes support in custom language environments for LaTeX export
 
 Custom language environments for LaTeX export can now define the
 string to be inserted during export, using attributes to indicate the
 position of the elements. See variable ~org-latex-custom-lang-environments~
 for more details.
 
 **** New Texinfo ~options~ attribute on special blocks
 
 Using ~:options~ as a Texinfo attribute, it is possible to add
 information to custom environments.  See manual for details.
 
 **** New HTML ~id~ attributes on special, example and quote blocks
 
 If the block has a =#+NAME:= attribute assigned, then the HTML element
 will have an ~id~ attribute with that name in the HTML export. This
 enables one to create links to these elements in other places, e.g.,
 ~<a href="#name">text</a>~.
 
 **** Listings with captions are now numbered in HTML export
 
 The class associated to the numbering is "listing-number".  If you
 don't want these blocks to be numbered, as it was the case until now,
 You may want to add ~.listing-number { display: none; }~ to the CSS
 used.
 
 **** Line Numbering in SRC/EXAMPLE blocks support arbitrary start number
 
 The ~-n~ option to ~SRC~ and ~EXAMPLE~ blocks can now take a numeric
 argument to specify the staring line number for the source or example
 block.  The ~+n~ option can now take a numeric argument that will be
 added to the last line number from the previous block as the starting
 point for the SRC/EXAMPLE block.
 
 #+BEGIN_SRC org
 ,#+BEGIN_SRC emacs-lisp -n 20
 ;; this will export with line number 20
 (message "This is line 21")
 ,#+END_SRC
 ,#+BEGIN_SRC emacs-lisp +n 10
 ;; This will be listed as line 31
 (message "This is line 32")
 ,#+END_SRC
 #+END_SRC
 
 **** Allow toggling center for images in LaTeX export
 
 With the global variable ~org-latex-images-centered~ or the local
 attribute ~:center~ it is now possible to center an image in LaTeX
 export.
 
 **** Default CSS class ~org-svg~ for SVG images in HTML export
 
 SVG images exported in HTML are now by default assigned a CSS class
 ~org-svg~ if no CSS class is specified with the ~:class~ attribute. By
 default, the CSS styling of class ~org-svg~ specifies an image width of
 90\thinsp{}% of the container the image.
 
 **** Markdown footnote export customization
 
 Variables ~org-md-footnotes-section~ and ~org-md-footnote-format~
 introduced for =ox-md.el=.  Both new variables define template strings
 which can be used to customize the format of the exported footnotes
 section and individual footnotes, respectively.
 
 *** Babel
 
 **** Blocks with coderefs labels can now be evaluated
 
 The labels are removed prior to evaluating the block.
 
 **** Support for Lua language
 **** Support for SLY in Lisp blocks
 
 See ~org-babel-lisp-eval-fn~ to activate it.
 
 **** Support for Stan language
 
 New ob-stan.el library.
 
 Evaluating a Stan block can produce two different results.
 
 1. Dump the source code contents to a file.
 
    This file can then be used as a variable in other blocks, which
    allows interfaces like RStan to use the model.
 
 2. Compile the contents to a model file.
 
    This provides access to the CmdStan interface.  To use this, set
    ~org-babel-stan-cmdstan-directory~ and provide a ~:file~ argument
    that does not end in ".stan".
 
 For more information and usage examples, visit
 https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-stan.html
 
 **** Support for Oracle databases via ~sqlplus~
 
 =ob-sql= library supports running SQL blocks against an Oracle
 database using ~sqlplus~.  Use with properties like this (all
 mandatory):
 
 #+BEGIN_EXAMPLE
 :engine oracle
 :dbhost <host.com>
 :dbport <1521>
 :dbuser <username>
 :database <database>
 :dbpassword <secret>
 #+END_EXAMPLE
 
 **** Improved support to Microsoft SQL Server via ~sqlcmd~
 
 =ob-sql= library removes support to the ~msosql~ engine which uses the
 deprecated ~osql~ command line tool, and replaces it with ~mssql~
 engine which uses the ~sqlcmd~ command line tool.  Use with properties
 like this:
 
 #+BEGIN_EXAMPLE
 :engine mssql
 :dbhost <host.com>
 :dbuser <username>
 :dbpassword <secret>
 :database <database>
 #+END_EXAMPLE
 
 If you want to use the *trusted connection* feature, omit *both* the
 =dbuser= and =dbpassword= properties and add =cmdline -E= to the properties.
 
 If your Emacs is running in a Cygwin environment, the =ob-sql= library
 can pass the converted path to the =sqlcmd= tool.
 
 **** Improved support of header arguments for postgresql
 
 The postgresql engine in a sql code block now supports ~:dbport~ and
 ~:dbpassword~ as header arguments.
 
 **** Support for additional plantuml output formats
 
 The support for output formats of [[https://plantuml.com/][plantuml]] has been extended to now
 include:
 
 All Diagrams:
 - png ::
 - svg ::
 - eps ::
 - pdf ::
 - vdx ::
 - txt :: ASCII art
 - utxt :: ASCII art using unicode characters
 
 Class Diagrams:
 - xmi ::
 - html ::
 
 State Diagrams:
 - scxml ::
 
 The output formats are determined by the file extension specified
 using the :file property, e.g.:
 
 #+begin_src plantuml :file diagram.png
 @startuml
 Alice -> Bob: Authentication Request
 Bob --> Alice: Authentication Response
 
 Alice -> Bob: Another authentication Request
 Alice <-- Bob: another authentication Response
 @enduml
 #+end_src
 
 Please note that *pdf* *does not work out of the box* and needs additional
 setup in addition to plantuml.  See [[https://plantuml.com/pdf.html]] for
 details and setup information.
 
 *** Rewrite of radio lists
 
 Radio lists, i.e, Org plain lists in foreign buffers, have been
 rewritten to be on par with Radio tables.  You can use a large set of
 parameters to control how a given list should be rendered.  See manual
 for details.
 
 *** org-bbdb-anniversaries-future
 
 Used like ~org-bbdb-anniversaries~, it provides a few days warning for
 upcoming anniversaries (default: 7 days).
 
 *** Clear non-repeated SCHEDULED upon repeating a task
 
 If the task is repeated, and therefore done at least one, scheduling
 information is no longer relevant.  It is therefore removed.
 
 See [[git:481719fbd5751aaa9c672b762cb43aea8ee986b0][commit message]] for more information.
 
 *** Support for ISO week trees
 
 ISO week trees are an alternative date tree format that orders entries
 by ISO week and not by month.
 
 For example:
 
 : * 2015
 : ** 2015-W35
 : ** 2015-W36
 : *** 2015-08-31 Monday
 
 They are supported in org-capture via ~file+weektree~ and
 ~file+weektree+prompt~ target specifications.
 
 *** Accept ~:indent~ parameter when capturing column view
 
 When defining a "columnview" dynamic block, it is now possible to add
 an :indent parameter, much like the one in the clock table.
 
 On the other hand, stars no longer appear in an ITEM field.
 
 *** Columns view
 
 **** ~org-columns~ accepts a prefix argument
 
 When called with a prefix argument, ~org-columns~ apply to the whole
 buffer unconditionally.
 
 **** New variable : ~org-agenda-view-columns-initially~
 
 The variable used to be a ~defvar~, it is now a ~defcustom~.
 
 **** Allow custom summaries
 
 It is now possible to add new summary types, or override those
 provided by Org by customizing ~org-columns-summary-types~, which see.
 
 **** Allow multiple summaries for any property
 
 Columns can now summarize the same property using different summary
 types.
 
 *** Preview LaTeX snippets in buffers not visiting files
 *** New option ~org-attach-commit~
 
 When non-nil, commit attachments with git, assuming the document is in
 a git repository.
 
 *** Allow conditional case-fold searches in ~org-occur~
 
 When set to ~smart~, the new variable ~org-occur-case-fold-search~ allows
 to mimic =isearch.el=: if the regexp searched contains any upper case
 character (or character class), the search is case sensitive.
 Otherwise, it is case insensitive.
 
 *** More robust repeated =ox-latex= footnote handling
 
 Repeated footnotes are now numbered by referring to a label in the
 first footnote.
 
 *** The ~org-block~ face is inherited by ~src-blocks~
 
 This works also when =org-src-fontify-natively= is non-nil.  It is also
 possible to specify per-languages faces.  See =org-src-block-faces= and
 the manual for details.
 
 *** Links are now customizable
 
 Links can now have custom colors, tooltips, keymaps, display behavior,
 etc.  Links are now centralized in ~org-link-parameters~.
 
 ** New functions
 
 *** ~org-next-line-empty-p~
 
 It replaces the deprecated ~next~ argument to ~org-previous-line-empty-p~.
 
 *** ~org-show-children~
 
 It is a faster implementation of ~outline-show-children~.
 
 ** Removed functions
 
 *** ~org-agenda-filter-by-tag-refine~ has been removed.
 
 Use ~org-agenda-filter-by-tag~ instead.
 
 *** ~org-agenda-todayp~ is deprecated.
 
 Use ~org-agenda-today-p~ instead.
 
 *** ~org-babel-get-header~ is removed.
 
 Use ~org-babel--get-vars~ or ~assq~ instead, as applicable.
 
 *** ~org-babel-trim~ is deprecated.
 
 Use ~org-trim~ instead.
 
 *** ~org-element-remove-indentation~ is deprecated.
 
 Use ~org-remove-indentation~ instead.
 
 *** ~org-image-file-name-regexp~ is deprecated
 
 Use ~image-file-name-regexp~ instead.
 The never-used-in-core ~extensions~ argument has been dropped.
 
 *** ~org-list-parse-list~ is deprecated
 
 Use ~org-list-to-lisp~ instead.
 
 *** ~org-on-heading-p~ is deprecated
 
 A comment to this effect was in the source code since 7.8.03, but
 now a byte-compiler warning will be generated as well.
 
 *** ~org-table-p~ is deprecated
 
 Use ~org-at-table-p~ instead.
 
 *** ~org-table-recognize-table.el~ is deprecated
 
 It was not called by any org code since 2010.
 
 *** Various reimplementations of cl-lib functions are deprecated
 
 The affected functions are:
 - ~org-count~
 - ~org-remove-if~
 - ~org-remove-if-not~
 - ~org-reduce~
 - ~org-every~
 - ~org-some~
 
 Additionally, ~org-sublist~ is deprecated in favor of ~cl-subseq~.  Note
 the differences in indexing conventions: ~org-sublist~ is 1-based and
 end-inclusive; ~cl-subseq~ is 0-based and end-exclusive.
 
 ** Removed options
 
 *** Remove all options related to ~ido~ or ~iswitchb~
 
 This includes ~org-completion-use-iswitchb~ and ~org-completion-use-ido~.
 Instead Org uses regular functions, e.g., ~completion-read~ so as to
 let those libraries operate.
 
 *** Remove ~org-list-empty-line-terminates-plain-lists~
 
 Two consecutive blank lines always terminate all levels of current
 plain list.
 
 *** ~fixltx2e~ is removed from ~org-latex-default-packages-alist~
 
 fixltx2e is obsolete, see LaTeX News 22.
 
 ** Miscellaneous
 *** Add Icelandic smart quotes
 *** Allow multiple receiver locations in radio tables and lists
 *** Allow angular links within link descriptions
 
 It is now allowed to write, e.g.,
 ~[[http:orgmode.org][<file:unicorn.png>]]~ as an equivalent to
 ~[[http:orgmode.org][file:unicorn.png]]~.  The advantage of the former
 is that spaces are allowed within the path.
 
 *** Beamer export back-ends uses ~org-latex-prefer-user-labels~
 *** ~:preparation-function~ called earlier during publishing
 
 Functions in this list are called before any file is associated to the
 current project.  Thus, they can be used to generate to be published
 Org files.
 
 *** Function ~org-remove-indentation~ changes.
 
 The new algorithm doesn't remove TAB characters not used for
 indentation.
 
 *** Secure placeholders in capture templates
 
 Placeholders in capture templates are no longer expanded recursively.
 However, ~%(...)~ constructs are expanded very late, so you can fill
 the contents of the S-exp with the replacement text of non-interactive
 placeholders.  As before, interactive ones are still expanded as the
 very last step, so the previous statement doesn't apply to them.
 
 Note that only ~%(...)~ placeholders initially present in the
 template, or introduced using a file placeholder, i.e., ~%[...]~ are
 expanded.  This prevents evaluating potentially malicious code when
 another placeholder, e.g., ~%i~ expands to a S-exp.
 
 *** Links stored by ~org-gnus-store-link~ in nnir groups
 
 Since gnus nnir groups are temporary, ~org-gnus-store-link~ now refers
 to the article's original group.
 
 *** ~org-babel-check-confirm-evaluate~ is now a function instead of a macro
 
 The calling convention has changed.
 
 *** HTML export table row customization changes
 
 Variable ~org-html-table-row-tags~ has been split into
 ~org-html-table-row-open-tag~ and ~org-html-table-row-close-tag~.
 Both new variables can be either a string or a function which will be
 called with 6 parameters.
 
 *** =ITEM= special property returns headline without stars
 *** Rename ~org-insert-columns-dblock~ into ~org-columns-insert-dblock~
 
 The previous name is, for the time being, kept as an obsolete alias.
 
 *** ~org-trim~ can preserve leading indentation.
 
 When setting a new optional argument to a non-nil value, ~org-trim~
 preserves leading indentation while removing blank lines at the
 beginning of the string.  The behavior is identical for white space at
 the end of the string.
 
 *** Function ~org-info-export~ changes.
 
 HTML links created from certain info links now point to =gnu.org= URL's rather
 than just to local files. For example info links such as =info:emacs#List
 Buffers= used to be converted to HTML links like this:
 
 : <a href="emacs.html#List-Buffers">emacs#List Buffers</a>
 
 where local file =emacs.html= is referenced.
 For most folks this file does not exist.
 Thus the new behavior is to generate this HTML link instead:
 
 : <a href="https://www.gnu.org/software/emacs/manual/html_mono/emacs.html#List-Buffers">emacs#List Buffers</a>
 
 All emacs related info links are similarly translated plus few other
 =gnu.org= manuals.
 
 *** Repeaters with a ~++~ interval and a time can be shifted to later today
 
 Previously, if a recurring task had a timestamp of
 ~<2016-01-01 Fri 20:00 ++1d>~ and was completed on =2016-01-02= at
 =08:00=, the task would skip =2016-01-02= and would be rescheduled for
 =2016-01-03=.  Timestamps with ~++~ cookies and a specific time will
 now shift to the first possible future occurrence, even if the
 occurrence is later the same day the task is completed.  (Timestamps
 already in the future are still shifted one time further into the
 future.)
 
 *** ~org-mobile-action-alist~ is now a defconst
 
 It used to be a defcustom, with a warning that it shouldn't be
 modified anyway.
 
 *** ~file+emacs~ and ~file+sys~ link types are deprecated
 
 They are still supported in Org 9.0 but will eventually be removed in
 a later release.  Use ~file~ link type along with universal arguments
 to force opening it in either Emacs or with system application.
 
 *** New defcustom ~org-babel-J-command~ stores the j command
 *** New defalias ~org-babel-execute:j~
 
 Allows J source blocks be indicated by letter j.  Previously the
 indication letter was solely J.
 
 *** ~org-open-line~ ignores tables at the very beginning of the buffer
 
 When ~org-special-ctrl-o~ is non-nil, it is impractical to create
 a blank line above a table at the beginning of the document. Now, as
 a special case, ~org-open-line~ behaves normally in this situation.
 
 *** ~org-babel-hash-show-time~ is now customizable
 
 The experimental variable used to be more or less confidential, as
 a ~defvar~.
 
 *** New ~:format~ property to parsed links
 
 It defines the format of the original link.  Possible values are:
 ~plain~, ~bracket~ and ~angle~.
 
 * Version 8.3
 
 ** Incompatible changes
 
 *** Properties drawers syntax changes
 
 Properties drawers are now required to be located right after a
 headline and its planning line, when applicable.
 
 It will break some documents as TODO states changes were sometimes
 logged before the property drawer.
 
 The following function will repair them:
 
 #+BEGIN_SRC emacs-lisp
 (defun org-repair-property-drawers ()
   "Fix properties drawers in current buffer.
 Ignore non Org buffers."
   (when (eq major-mode 'org-mode)
     (org-with-wide-buffer
      (goto-char (point-min))
      (let ((case-fold-search t)
            (inline-re (and (featurep 'org-inlinetask)
                            (concat (org-inlinetask-outline-regexp)
                                    "END[ \t]*$"))))
        (org-map-entries
         (lambda ()
           (unless (and inline-re (org-looking-at-p inline-re))
             (save-excursion
               (let ((end (save-excursion (outline-next-heading) (point))))
                 (forward-line)
                 (when (org-looking-at-p org-planning-line-re) (forward-line))
                 (when (and (< (point) end)
                            (not (org-looking-at-p org-property-drawer-re))
                            (save-excursion
                              (and (re-search-forward org-property-drawer-re end t)
                                   (eq (org-element-type
                                        (save-match-data (org-element-at-point)))
                                       'drawer))))
                   (insert (delete-and-extract-region
                            (match-beginning 0)
                            (min (1+ (match-end 0)) end)))
                   (unless (bolp) (insert "\n"))))))))))))
 #+END_SRC
 
 *** Using "COMMENT" is now equivalent to commenting with "#"
 
 If you used "COMMENT" in headlines to prevent a subtree from being
 exported, you can still do it but all information within the subtree
 is now commented out, i.e. no #+OPTIONS line will be parsed or taken
 into account when exporting.
 
 If you want to exclude a headline from export while using its contents
 for setting options, use =:noexport:= (see =org-export-exclude-tags=.)
 
 *** =#+CATEGORY= keywords no longer apply partially to document
 
 It was possible to use several such keywords and have them apply to
 the text below until the next one, but strongly deprecated since Org
 5.14 (2008).
 
 =#+CATEGORY= keywords are now global to the document.  You can use node
 properties to set category for a subtree, e.g.,
 
 #+BEGIN_SRC org
 ,* Headline
    :PROPERTIES:
    :CATEGORY: some category
    :END:
 #+END_SRC
 
 *** New variable to control visibility when revealing a location
 
 ~org-show-following-heading~, ~org-show-siblings~, ~org-show-entry-below~
 and ~org-show-hierarchy-above~ no longer exist.  Instead, visibility is
 controlled through a single variable: ~org-show-context-detail~, which
 see.
 
 *** Replace disputed keys again when reading a date
 
 ~org-replace-disputed-keys~ has been ignored when reading date since
 version 8.1, but the former behavior is restored again.
 
 Keybinding for reading date can be customized with a new variable
 ~org-read-date-minibuffer-local-map~.
 
 *** No default title is provided when =TITLE= keyword is missing
 
 Skipping =TITLE= keyword no longer provides the current file name, or
 buffer name, as the title.  Instead, simply ignore the title.
 
 *** Default bindings of =C-c C-n= and =C-c C-p= changed
 
 The key sequences =C-c C-n= and =C-c C-p= are now bound to
 ~org-next-visible-heading~ and ~org-previous-visible-heading~
 respectively, rather than the =outline-mode= versions of these
 functions.  The Org version of these functions skips over inline tasks
 (and even-level headlines when ~org-odd-levels-only~ is set).
 
 *** ~org-element-context~ no longer return objects in keywords
 
 ~org-element-context~ used to return objects on some keywords, i.e.,
 =TITLE=, =DATE= and =AUTHOR=.  It now returns only the keyword.
 
 *** ~org-timer-default-timer~ type changed from number to string
 
 If you have, in your configuration, something like =(setq
 org-timer-default-timer 10)= replace it with =(setq
 org-timer-default-timer "10")=.
 
 *** Functions signature changes
 
 The following functions require an additional argument.  See their
 docstring for more information.
 
 - ~org-export-collect-footnote-definitions~
 - ~org-html-format-headline-function~
 - ~org-html-format-inlinetask-function~
 - ~org-latex-format-headline-function~
 - ~org-latex-format-inlinetask-function~
 - ~org-link-search~
 
 ** New features
 
 *** Default lexical evaluation of emacs-lisp source blocks
 
 Emacs-lisp source blocks in Babel are now evaluated using lexical
 scoping.  There is a new header to control this behavior.
 
 The default results in an eval with lexical scoping.
 :lexical yes
 
 This turns lexical scoping off in the eval (the former behavior).
 :lexical no
 
 This uses the lexical environment with x=42 in the eval.
 :lexical '((x . 42))
 
 *** Behavior of ~org-return~ changed
 
 If point is before or after the headline title, insert a new line
 without changing the headline.
 
 *** Hierarchies of tags
 
 The functionality of nesting tags in hierarchies is added to Org mode.
 This is the generalization of what was previously called "Tag groups"
 in the manual.  That term is now changed to "Tag hierarchy".
 
 The following in-buffer definition:
 
 #+BEGIN_SRC org
   ,#+TAGS: [ Group : SubOne SubTwo ]
   ,#+TAGS: [ SubOne : SubOne1 SubOne2 ]
   ,#+TAGS: [ SubTwo : SubTwo1 SubTwo2 ]
 #+END_SRC
 
 Should be seen as the following tree of tags:
 
 - Group
   - SubOne
     - SubOne1
     - SubOne2
   - SubTwo
     - SubTwo1
     - SubTwo2
 
 Searching for "Group" should return all tags defined above.  Filtering
 on SubOne filters also it's sub-tags.  Etc.
 
 There is no limit on the depth for the tag hierarchy.
 
 *** Additional syntax for non-unique grouptags
 
 Additional syntax is defined for grouptags if the tags in the group
 don't have to be distinct on a heading.
 
 Grouptags had to previously be defined with { }.  This syntax is
 already used for exclusive tags and Grouptags need their own,
 non-exclusive syntax.  This behavior is achieved with [ ].  Note: { }
 can still be used also for Grouptags but then only one of the given
 tags can be used on the headline at the same time.  Example:
 
 [ group : sub1 sub2 ]
 
 #+BEGIN_SRC org
 ,* Test                                                            :sub1:sub2:
 #+END_SRC
 
 This is a more general case than the already existing syntax for
 grouptags; { }.
 
 *** Define regular expression patterns as tags
 
 Tags can be defined as grouptags with regular expressions as
 "sub-tags".
 
 The regular expressions in the group must be marked up within { }.
 Example use:
 
 : #+TAGS: [ Project : {P@.+} ]
 
 Searching for the tag Project will now list all tags also including
 regular expression matches for P@.+.  This is good for example for
 projects tagged with a common identifier, i.e. P@2014_OrgTags.
 
 *** Filtering in the agenda on grouptags (Tag hierarchies)
 
 Filtering in the agenda on grouptags filters all of the related tags.
 Except if a filter is applied with a (double) prefix-argument.
 
 Filtering in the agenda on subcategories does not filter the "above"
 levels anymore.
 
 If a grouptag contains a regular expression the regular expression
 is also used as a filter.
 
 *** Minor refactoring of ~org-agenda-filter-by-tag~
 
 Now uses the argument ARG and optional argument exclude instead of
 strip and narrow.  ARG because the argument has multiple purposes and
 makes more sense than strip now.  The term "narrowing" is changed to
 exclude.
 
 The main purpose is for the function to make more logical sense when
 filtering on tags now when tags can be structured in hierarchies.
 
 *** Babel: support for sed scripts
 
 Thanks to Bjarte Johansen for this feature.
 
 *** Babel: support for Processing language
 
 New ob-processing.el library.
 
 This library implements necessary functions for implementing editing
 of Processing code blocks, viewing the resulting sketches in an
 external viewer, and HTML export of the sketches.
 
 Check the documentation for more details.
 
 Thanks to Jarmo Hurri for this feature.
 
 *** New behavior for ~org-toggle-latex-fragment~
 
 The new behavior is the following:
 
 - With a double prefix argument or with a single prefix argument when
   point is before the first headline, toggle overlays in the whole
   buffer;
 
 - With a single prefix argument, toggle overlays in the current
   subtree;
 
 - On latex code, toggle overlay at point;
 
 - Otherwise, toggle overlays in the current section.
 
 *** Additional markup with =#+INCLUDE= keyword
 
 The content of the included file can now be optionally marked up, for
 instance as HTML.  See the documentation for details.
 
 *** File links with =#+INCLUDE= keyword
 
 Objects can be extracted via =#+INCLUDE= using file links.  It is
 possible to include only the contents of the object.  See manual for
 more information.
 
 *** Drawers do not need anymore to be referenced in =#+DRAWERS=
 
 One can use a drawer without listing it in the =#+DRAWERS= keyword,
 which is now obsolete.  As a consequence, this change also deprecates
 ~org-drawers~ variable.
 
 *** ~org-edit-special~ can edit export blocks
 
 Using C-c ' on an export block now opens a sub-editing buffer.  Major
 mode in that buffer is determined by export backend name (e.g.,
 "latex" \to "latex-mode").  You can define exceptions to this rule by
 configuring ~org-src-lang-modes~, which see.
 
 *** Additional =:hline= processing to ob-shell
 
 If the argument =:hlines yes= is present in a babel call, an optional
 argument =:hlines-string= can be used to define a string to use as a
 representation for the lisp symbol ='hline= in the shell program.  The
 default is =hline=.
 
 *** Markdown export supports switches in source blocks
 
 For example, it is now possible to number lines using the =-n= switch in
 a source block.
 
 *** New option in ASCII export
 
 Plain lists can have an extra margin by setting ~org-ascii-list-margin~
 variable to an appropriate integer.
 
 *** New blocks in ASCII export
 
 ASCII export now supports =#+BEGIN_JUSTIFYRIGHT= and =#+BEGIN_JUSTIFYLEFT=
 blocks.  See documentation for details.
 
 *** More back-end specific publishing options
 
 The number of publishing options specific to each back-end has been
 increased.  See manual for details.
 
 *** Export inline source blocks
 
 Inline source code was used to be removed upon exporting.  They are
 now handled as standard code blocks, i.e., the source code can appear
 in the output, depending on the parameters.
 
 *** Extend ~org-export-first-sibling-p~ and ~org-export-last-sibling-p~
 
 These functions now support any element or object, not only headlines.
 
 *** New function: ~org-export-table-row-in-header-p~
 
 *** New function: ~org-export-get-reference~
 
 *** New function: ~org-element-lineage~
 
 This function deprecates ~org-export-get-genealogy~.  It also provides
 more features.  See docstring for details.
 
 *** New function: ~org-element-copy~
 
 *** New filter: ~org-export-filter-body-functions~
 
 Functions in this filter are applied on the body of the exported
 document, before wrapping it within the template.
 
 *** New :environment parameter when exporting example blocks to LaTeX
 
 : #+ATTR_LATEX: :environment myverbatim
 : #+BEGIN_EXAMPLE
 : This sentence is false.
 : #+END_EXAMPLE
 
 will be exported using =@samp(myverbatim)= instead of =@samp(verbatim)=.
 
 *** Various improvements on radio tables
 
 Radio tables feature now relies on Org's export framework ("ox.el").
 ~:no-escape~ parameter no longer exists, but additional global
 parameters are now supported: ~:raw~, ~:backend~.  Moreover, there are new
 parameters specific to some pre-defined translators, e.g.,
 ~:environment~ and ~:booktabs~ for ~orgtbl-to-latex~.  See translators
 docstrings (including ~orgtbl-to-generic~) for details.
 
 *** Non-floating minted listings in Latex export
 
 It is not possible to specify =#+attr_latex: :float nil= in conjunction
 with source blocks exported by the minted package.
 
 *** Field formulas can now create columns as needed
 
 Previously, evaluating formulas that referenced out-of-bounds columns
 would throw an error. A new variable ~org-table-formula-create-columns~
 was added to adjust this behavior. It is now possible to silently add
 new columns, to do so with a warning or to explicitly ask the user
 each time.
 
 *** ASCII plot
 
 Ability to plot values in a column through ASCII-art bars.  See manual
 for details.
 
 *** New hook: ~org-archive-hook~
 
 This hook is called after successfully archiving a subtree, with point
 on the original subtree, not yet deleted.
 
 *** New option: ~org-attach-archive-delete~
 
 When non-nil, attachments from archived subtrees are removed.
 
 *** New option: ~org-latex-caption-above~
 
 This variable generalizes ~org-latex-table-caption-above~, which is now
 deprecated.  In addition to tables, it applies to source blocks,
 special blocks and images.  See docstring for more information.
 
 *** New option: ~org-latex-prefer-user-labels~
 
 See the docstring for more information.
 
 *** Export unnumbered headlines
 
 Headlines, for which the property ~UNNUMBERED~ is non-nil, are now
 exported without section numbers irrespective of their levels.  The
 property is inherited by children.
 
 *** Tables can be sorted with an arbitrary function
 
 It is now possible to specify a function, both programmatically,
 through a new optional argument, and interactively with ~f~ or ~F~ keys,
 to sort a table.
 
 *** Table of contents can be local to a section
 
 The ~TOC~ keywords now accepts an optional ~local~ parameter.  See manual
 for details.
 
 *** Countdown timers can now be paused
 
 ~org-timer-pause-time~ now pauses and restarts both relative and
 countdown timers.
 
 *** New option ~only-window~ for ~org-agenda-window-setup~
 
 When ~org-agenda-window-setup~ is set to ~only-window~, the agenda is
 displayed as the sole window of the current frame.
 
 *** ~{{{date}}}~ macro supports optional formatting argument
 
 It is now possible to supply and optional formatting argument to
 ~{{{date}}}~. See manual for details.
 
 *** ~{{{property}}}~ macro supports optional search argument
 
 It is now possible to supply an optional search option to
 ~{{{property}}}~ in order to retrieve remote properties optional.  See
 manual for details.
 
 *** New option ~org-export-with-title~
 
 It is possible to suppress the title insertion with ~#+OPTIONS:
 title:nil~ or globally using the variable ~org-export-with-title~.
 
 *** New entities family: "\_ "
 
 "\_ " are used to insert up to 20 contiguous spaces in various
 back-ends.  In particular, this family can be used to introduce
 leading spaces within table cells.
 
 *** New MathJax configuration options
 
 Org uses the MathJax CDN by default.  See the manual and the docstring
 of ~org-html-mathjax-options~ for details.
 
 *** New behavior in `org-export-options-alist'
 
 When defining a back-end, it is now possible to specify to give
 `parse' behavior on a keyword.  It is equivalent to call
 `org-element-parse-secondary-string' on the value.
 
 However, parsed =KEYWORD= is automatically associated to an
 =:EXPORT_KEYWORD:= property, which can be used to override the keyword
 value during a subtree export.  Moreover, macros are expanded in such
 keywords and properties.
 
 *** Viewport support in html export
 
 Viewport for mobile-optimized website is now automatically inserted
 when exporting to html.  See ~org-html-viewport~ for details.
 
 *** New ~#+SUBTITLE~ export keyword
 
 Org can typeset a subtitle in some export backends.  See the manual
 for details.
 
 *** Remotely edit a footnote definition
 
 Calling ~org-edit-footnote-reference~ (C-c ') on a footnote reference
 allows to edit its definition, as long as it is not anonymous, in a
 dedicated buffer.  It works even if buffer is currently narrowed.
 
 *** New function ~org-delete-indentation~ bound to ~M-^~
 
 Work as ~delete-indentation~ unless at heading, in which case text is
 added to headline text.
 
 *** Support for images in Texinfo export
 
 ~Texinfo~ back-end now handles images.  See the manual for details.
 
 *** Support for captions in Texinfo export
 
 Tables and source blocks can now have captions.  Additionally, lists
 of tables and lists of listings can be inserted in the document with
 =#+TOC= keyword.
 
 *** Countdown timer support hh:mm:ss format
 
 In addition to setting countdown timers in minutes, they can also be
 set using the hh:mm:ss format.
 
 *** Extend ~org-clone-subtree-with-time-shift~
 
 ~org-clone-subtree-with-time-shift~ now accepts 0 as an argument for the
 number of clones, which removes the repeater from the original subtree
 and creates one shifted, repeating clone.
 
 *** New time block for clock tables: ~untilnow~
 
 It encompasses all past closed clocks.
 
 *** Support for the ~polyglossia~ LaTeX package
 
 See the docstring of ~org-latex-classes~ and
 ~org-latex-guess-polyglossia-language~ for details.
 
 *** None-floating tables, graphics and blocks can have captions
 
 *** `org-insert-heading' can be forced to insert top-level headline
 
 ** Removed functions
 
 *** Removed function ~org-translate-time~
 
 Use ~org-timestamp-translate~ instead.
 
 *** Removed function ~org-beamer-insert-options-template~
 
 This function inserted a Beamer specific template at point or in
 current subtree.  Use ~org-export-insert-default-template~ instead, as
 it provides more features and covers all export back-ends.  It is also
 accessible from the export dispatcher.
 
 *** Removed function ~org-timer-cancel-timer~
 
 ~org-timer-stop~ now stops both relative and countdown timers.
 
 *** Removed function ~org-export-solidify-link-text~
 
 This function, being non-bijective, introduced bug in internal
 references.  Use ~org-export-get-reference~ instead.
 
 *** Removed function ~org-end-of-meta-data-and-drawers~
 
 The function is superseded by ~org-end-of-meta-data~, called with an
 optional argument.
 
 *** Removed functions ~org-table-colgroup-line-p~, ~org-table-cookie-line-p~
 
 These functions were left-over from pre 8.0 era.  They are not correct
 anymore.  Since they are not needed, they have no replacement.
 
 ** Removed options
 
 *** ~org-list-empty-line-terminates-plain-lists~ is deprecated
 
 It will be kept in code base until next release, for backward
 compatibility.
 
 If you need to separate consecutive lists with blank lines, always use
 two of them, as if this option was nil (default value).
 
 *** ~org-export-with-creator~ is a boolean
 
 Special ~comment~ value is no longer allowed.  It is possible to use a
 body filter to add comments about the creator at the end of the
 document instead.
 
 *** Removed option =org-html-use-unicode-chars=
 
 Setting this to non-nil was problematic as it converted characters
 everywhere in the buffer, possibly corrupting URLs.
 
 *** Removed option =org-babel-sh-command=
 
 This undocumented option defaulted to the value of =shell-file-name= at
 the time of loading =ob-shell=.  The new behavior is to use the value
 of =shell-file-name= directly when the shell language is =shell=.  To chose
 a different shell, either customize =shell-file-name= or bind this
 variable locally.
 
 *** Removed option =org-babel-sh-var-quote-fmt=
 
 This undocumented option was supposed to provide different quoting
 styles when changing the shell type.  Changing the shell type can now
 be done directly from the source block and the quoting style has to be
 compatible across all shells, so a customization doesn't make sense
 anymore.  The chosen hard coded quoting style conforms to POSIX.
 
 *** Removed option ~org-insert-labeled-timestamps-at-point~
 
 Setting this option to anything else that the default value (nil)
 would create invalid planning info.  This dangerous option is now
 removed.
 
 *** Removed option ~org-koma-letter-use-title~
 
 Use org-export-with-title instead.  See also below.
 
 *** Removed option ~org-entities-ascii-explanatory~
 
 This variable has no effect since Org 8.0.
 
 *** Removed option ~org-table-error-on-row-ref-crossing-hline~
 
 This variable has no effect since August 2009.
 
 *** Removed MathML-related options from ~org-html-mathjax-options~
 
 MathJax automatically chooses the best display technology based on the
 end-users browser.  You may force initial usage of MathML via
 ~org-html-mathjax-template~ or by setting the ~path~ property of
 ~org-html-mathjax-options~.
 
 *** Removed comment-related filters
 
 ~org-export-filter-comment-functions~ and
 ~org-export-filter-comment-block-functions~ variables do not exist
 anymore.
 
 ** Miscellaneous
 
 *** Strip all meta data from ITEM special property
 
 ITEM special property does not contain TODO, priority or tags anymore.
 
 *** File names in links accept are now compatible with URI syntax
 
 Absolute file names can now start with =///= in addition to =/=. E.g.,
 =[[file:///home/me/unicorn.jpg]]=.
 
 *** Footnotes in included files are now local to the file
 
 As a consequence, it is possible to include multiple Org files with
 footnotes in a master document without being concerned about footnote
 labels colliding.
 
 *** Mailto links now use regular URI syntax
 
 This change deprecates old Org syntax for mailto links:
 =mailto:user@domain::Subject=.
 
 *** =QUOTE= keywords do not exist anymore
 
 =QUOTE= keywords have been deprecated since Org 8.2.
 
 *** Select tests to perform with the build system
 
 The build system has been enhanced to allow test selection with a
 regular expression by defining =BTEST_RE= during the test invocation.
 This is especially useful during bisection to find just when a
 particular test failure was introduced.
 
 *** Exact heading search for external links ignore spaces and cookies
 
 Exact heading search for links now ignore spaces and cookies. This is
 the case for links of the form ~file:projects.org::*task title~, as well
 as links of the form ~file:projects.org::some words~ when
 ~org-link-search-must-match-exact-headline~ is not nil.
 
 *** ~org-latex-hyperref-template~, ~org-latex-title-command~ formatting
 
 New formatting keys are supported.  See the respective docstrings.
 Note, ~org-latex-hyperref-template~ has a new default value.
 
 *** ~float, wasysym, marvosym~ are removed from ~org-latex-default-packages-alist~
 
 If you require any of these package add them to your preamble via
 ~org-latex-packages-alist~. Org also uses default LaTeX ~\tolerance~ now.
 
 *** When exporting, throw an error on unresolved id/fuzzy links and code refs
 
 This helps spotting wrong links.
 
 * Version 8.2
 
 ** Incompatible changes
 *** =ob-sh.el= renamed to =ob-shell=
 This may require two changes in user config.
 
 1. In =org-babel-do-load-languages=, change =(sh . t)= to =(shell . t)=.
 2. Edit =local.mk= files to change the value of =BTEST_OB_LANGUAGES=
    to remove "sh" and include "shell".
 
 *** Combine org-mac-message.el and org-mac-link-grabber into org-mac-link.el
 
 Please remove calls to =(require 'org-mac-message)= and =(require
 'org-mac-link-grabber)= in your =.emacs= initialization file.  All you
 need now is =(require 'org-mac-link)=.
 
 Additionally, replace any calls to =ogml-grab-link= to
 =org-mac-grab-link=.  For example, replace this line:
 
 : (define-key org-mode-map (kbd "C-c g") 'omgl-grab-link)
 
 with this:
 
 : (define-key org-mode-map (kbd "C-c g") 'org-mac-grab-link)
 
 *** HTML export: Replace =HTML_HTML5_FANCY= by =:html-html5-fancy= (...)
 
 Some of the HTML specific export options in Org <8.1 are either nil or
 t, like =#+HTML_INCLUDE_STYLE=.  We replaced these binary options with
 option keywords like :html-include-style.
 
 So you need to replace
 
 : #+HTML_INCLUDE_STYLE: t
 
 by
 
 : #+OPTIONS: :html-include-style t
 
 Options affected by this change: =HTML5_FANCY=, =HTML_INCLUDE_SCRIPTS=
 and =HTML_INCLUDE_STYLE=.
 
 *** Add an argument to ~org-export-to-file~ and ~org-export-to-buffer~
 
 ~org-export-to-file~ and ~org-export-to-file~ can run in a different
 process when provided a non-nil =ASYNC= optional argument, without
 relying on ~org-export-async-start~ macro.
 
 Since =ASYNC= is the first of optional arguments, you have to shift
 the other optional arguments accordingly.
 
 *** Export back-ends are now structures
 
 Export back-ends are now structures, and stored as such in the
 communication channel during an export process.  In other words, from
 now on, ~(plist-get info :back-end)~ will return a structure instead
 of a symbol.
 
 Arguments in hooks and in filters are still symbols, though.
 
 ** Important bugfixes
 
 *** [[doc:org-insert-heading][org-insert-heading]] has been rewritten and bugs are now fixed
 *** The replacement of disputed keys is now turned of when reading a date
 
 *** Match string for sparse trees can now contain a slash in a property value
 
     You can now have searches like SOMEPROP="aaa/bbb".  Until now,
     this would break because the slash would be interpreted as the
     separator starting a TOTO match string.
 ** New features
 
 *** =C-c ^ x= will now sort checklist items by their checked status
 
 See [[doc:org-sort-list][org-sort-list]]: hitting =C-c ^ x= will put checked items at the end
 of the list.
 *** Various LaTeX export enhancements
 
 - Support SVG images
 - Support for .pgf files
 - LaTeX Babel blocks can now be exported as =.tikz= files
 - Allow =latexmk= as an option for [[doc:org-latex-pdf-process][org-latex-pdf-process]]
 - When using =\usepackage[AUTO]{babel}=, AUTO will automatically be
   replaced with a value compatible with ~org-export-default-language~
   or ~LANGUAGE~ keyword.
 - The dependency on the =latexsym= LaTeX package has been removed, we
   now use =amssymb= symbols by default instead.
 
 *** New functions for paragraph motion
 
     The commands =C-down= and =C-up= now invoke special commands
     that use knowledge from the org-elements parser to move the cursor
     in a paragraph-like way.
 
 *** New entities in =org-entities.el=
 
 Add support for ell, imath, jmath, varphi, varpi, aleph, gimel, beth,
 dalet, cdots, S (§), dag, ddag, colon, therefore, because, triangleq,
 leq, geq, lessgtr, lesseqgtr, ll, lll, gg, ggg, prec, preceq,
 preccurlyeq, succ, succeq, succurlyeq, setminus, nexist(s), mho,
 check, frown, diamond.  Changes loz, vert, checkmark, smile and tilde.
 
 *** Anonymous export back-ends
 
 ~org-export-create-backend~ can create anonymous export back-ends,
 which can then be passed to export functions like
 ~org-export-to-file~, ~org-export-to-buffer~ or ~org-export-as~.
 
 It allows for quick translation of Org syntax without the overhead of
 registering a new back-end.
 
 *** New agenda fortnight view
 
     The agenda has not, in addition to day, week, month, and year
     views, also a fortnight view covering 14 days.
 ** New options
 
 *** New option [[doc:org-bookmark-names-plist][org-bookmark-names-plist]]
 
 This allows to specify the names of automatic bookmarks.
 *** New option [[doc:org-agenda-ignore-drawer-properties][org-agenda-ignore-drawer-properties]]
 
 This allows more flexibility when optimizing the agenda generation.
 See https://orgmode.org/worg/agenda-optimization.html for details.
 *** New option: [[doc:org-html-link-use-abs-url][org-html-link-use-abs-url]] to force using absolute URLs
 
 This is an export/publishing option, and should be used either within
 the =#+OPTIONS= line(s) or within a [[doc:org-publish-project-alist][org-publish-project-alist]].
 
 Setting this option to =t= is needed when the HTML output does not
 allow relative URLs.  For example, the =contrib/lisp/ox-rss.el=
 library produces a RSS feed, and RSS feeds need to use absolute URLs,
 so a combination of =:html-link-home "..." and :html-link-use-abs-url
 t= is required---see the configuration example in the comment section
 of =ox-rss.el=.
 
 *** New option [[doc:org-babel-ditaa-java-cmd][org-babel-ditaa-java-cmd]]
 
 This makes java executable configurable for ditaa blocks.
 
 *** New options [[doc:org-babel-latex-htlatex][org-babel-latex-htlatex]] and [[doc:org-babel-latex-htlatex-packages][org-babel-latex-htlatex-packages]]
 
 This enables SVG generation from latex code blocks.
 
 *** New option: [[doc:org-habit-show-done-always-green][org-habit-show-done-always-green]]
 
 See [[https://lists.gnu.org/r/emacs-orgmode/2013-05/msg00214.html][this message]] from Max Mikhanosha.
 
 *** New option: [[doc:org-babel-inline-result-wrap][org-babel-inline-result-wrap]]
 
 If you set this to the following
 
 : (setq org-babel-inline-result-wrap "$%s$")
 
 then inline code snippets will be wrapped into the formatting string.
 
 *** New option: [[doc:org-special-ctrl-o][org-special-ctrl-o]]
 
     This variable can be used to turn off the special behavior of
     =C-o= in tables.
 ** New contributed packages
 
 - =ox-bibtex.el= by Nicolas Goaziou :: an utility to handle BibTeX
      export to both LaTeX and HTML exports.  It uses the [[https://www.lri.fr/~filliatr/bibtex2html/][bibtex2html]]
      software.
 
 - =org-screenshot.el= by Max Mikhanosha :: an utility to handle
      screenshots easily from Org, using the external tool [[https://freecode.com/projects/scrot][scrot]].
 
 ** Miscellaneous
 
 *** "QUOTE" keywords in headlines are deprecated
 
 "QUOTE" keywords are an undocumented feature in Org.  When a headline
 starts with the keyword "QUOTE", its contents are parsed as
 a ~quote-section~ and treated as an example block.  You can achieve
 the same with example blocks.
 
 This feature is deprecated and will be removed in the next Org
 release.
 
 * Version 8.0.1
 
 ** Installation
 
 Installation instructions have been updated and simplified.
 
 If you have troubles installing or updating Org, focus on these
 instructions:
 
 - when updating via a =.zip/.tar.gz= file, you only need to set the
   =load-path= in your =.emacs=.  Set it before any other Org
   customization that would call autoloaded Org functions.
 
 - when updating by pulling Org's Git repository, make sure to create the
   correct autoloads.  You can do this by running =~$ make autoloads= (to
   only create the autoloads) or by running =~$ make= (to also compile
   the Emacs lisp files.)  =~$ make help= and =~$ make helpall= gives you
   detailed explanations.
 
 - when updating through ELPA (either from GNU ELPA or from Org ELPA),
   you have to install Org's ELPA package in a session where no Org
   function has been called already.
 
 When in doubt, run =M-x org-version RET= and see if you have a mixed-up
 installation.
 
 See https://orgmode.org/org.html#Installation for details.
 
 ** Incompatible changes
 
 Org 8.0 is the most disruptive major version of Org.
 
 If you configured export options, you will have to update some of them.
 
 If you used =#+ATTR_*= keywords, the syntax of the attributes changed and
 you will have to update them.
 
 Below is a list of changes for which you need to take action.
 
 See https://orgmode.org/worg/org-8.0.html for the most recent version of
 this list and for detailed instructions on how to migrate.
 
 **** New export engine
 
 Org 8.0 comes with a new export engine written by Nicolas Goaziou.  This
 export engine relies on ~org-element.el~ (Org's syntax parser), which was
 already in Org's core.  This new export engine triggered the rewriting of
 /all/ export back-ends.
 
 The most visible change is the export dispatcher, accessible through the
 keybinding =C-c C-e=.  By default, this menu only shows some of the
 built-in export formats, but you can add more formats by loading them
 directly (e.g., =(require 'ox-texinfo)= or by configuring the option
 [[doc:org-export-backends][org-export-backends]].
 
 More contributed back-ends are available from the =contrib/= directory, the
 corresponding files start with the =ox-= prefix.
 
 If you customized an export back-end (like HTML or LaTeX), you will need to
 rename some options so that your customization is not lost.  Typically, an
 option starting with =org-export-html-= is now named =org-html-=.  See the
 manual for details and check [[https://orgmode.org/worg/org-8.0.html][this Worg page]] for directions.
 
 **** New syntax for #+ATTR_HTML/LaTeX/... options
 
      : #+ATTR_HTML width="200px"
 
      should now be written
 
      : #+ATTR_HTML :width 200px
 
      Keywords like =#+ATTR_HTML= and =#+ATTR_LaTeX= are defined in their
      respective back-ends, and the list of supported parameters depends on
      each backend.  See Org's manual for details.
 
 **** ~org-remember.el~ has been removed
 
      You cannot use =remember.el= anymore to capture notes.
 
      Support for remember templates has been obsoleted since long, it is
      now fully removed.
 
      Use =M-x org-capture-import-remember-templates RET= to import your
      remember templates into capture templates.
 
 **** ~org-jsinfo.el~ has been merged into ~ox-html.el~
 
      If you were requiring ~ox-jsinfo.el~ in your ~.emacs.el~ file, you
      will have to remove this requirement from your initialization file.
 
 **** Note for third-party developers
 
      The name of the files for export back-end have changed: we now use the
      prefix =ox-= for those files (like we use the =ob-= prefix for Babel
      files.)  For example ~org-html.el~ is now ~ox-html.el~.
 
      If your code relies on these files, please update the names in your
      code.
 
 **** Packages moved from core to contrib
 
      Since packages in Org's core are meant to be part of GNU Emacs, we try
      to be minimalist when it comes to adding files into core.  For 8.0, we
      moved some contributions into the =contrib/= directory.
 
      The rationale for deciding that these files should live in =contrib/=
      is either because they rely on third-party software that is not
      included in Emacs, or because they are not targeting a significant
      user-base.
 
      - org-colview-xemacs.el
      - org-mac-message.el
      - org-mew.el
      - org-wl.el
      - ox-freedmind.el
      - ox-taskjuggler.el
 
      Note that ~ox-freedmind.el~ has been rewritten by Jambunathan,
      ~org-mew.el~ has been enhanced by Tokuya Kameshima and
      ~ox-taskjuggler.el~ by Nicolas Goaziou and others.
 
      Also, the Taskjuggler exporter now uses TJ3 by default.  John Hendy
      wrote [[https://orgmode.org/worg/org-tutorials/org-taskjuggler3.html][a tutorial on Worg]] for the TJ3 export.
 
 ** New packages in core
 
 *** ~ob-makefile.el~ by Eric Schulte and Thomas S. Dye
 
     =ob-makefile.el= implements Org Babel support for Makefile tangling.
 
 *** ~ox-man.el~ by Luis Anaya
 
     =ox-man.el= allows you to export Org files to =man= pages.
 
 *** ~ox-md.el~ by Nicolas Goaziou
 
     =ox-md.el= allows you to export Org files to Markdown files, using the
     vanilla [[https://daringfireball.net/projects/markdown/][Markdown syntax]].
 
 *** ~ox-texinfo.el~ by Jonathan Leech-Pepin
 
     =ox-texinfo.el= allows you to export Org files to [[https://www.gnu.org/software/texinfo/][Texinfo]] files.
 
 ** New packages in contrib
 
 *** ~ob-julia.el~ by G. Jay Kerns
 
     [[https://julialang.org/][Julia]] is a new programming language.
 
     =ob-julia.el= provides Org Babel support for evaluating Julia source
     code.
 
 *** ~ob-mathomatic.el~ by Luis Anaya
 
     [[https://www.mathomatic.org/][mathomatic]] a portable, command-line, educational CAS and calculator
     software, written entirely in the C programming language.
 
     ~ob-mathomatic.el~ provides Org Babel support for evaluating mathomatic
     entries.
 
 *** ~ob-tcl.el~ by Luis Anaya
 
     ~ob-tcl.el~ provides Org Babel support for evaluating [[https://www.tcl.tk/][Tcl]] source code.
 
 *** ~org-bullets.el~ by Evgeni Sabof
 
     Display bullets instead of stars for headlines.
 
     Also see [[https://orgmode.org/worg/org-faq.html#sec-8-12][this updated FAQ]] on how to display another character than "*"
     for starting headlines.
 
 *** ~org-favtable.el~ by Marc-Oliver Ihm
 
     ~org-favtable.el~ helps you to create and update a table of favorite
     locations in org, keeping the most frequently visited lines right at
     the top.  This table is called "favtable".  See the documentation on
     [[https://orgmode.org/worg/org-contrib/org-favtable.html][Worg]].
 
 *** ~ox-confluence.el~ by Sébastien Delafond
 
     ~ox-confluence.el~ lets you convert Org files to [[https://confluence.atlassian.com/display/DOC/Confluence%2BWiki%2BMarkup][Confluence Wiki]] files.
 
 *** ~ox-deck.el~ and ~ox-s5.el~ by Rick Frankel
 
     [[http://imakewebthings.com/deck.js/][deck.js]] is a javascript library for displaying HTML ages as
     presentations.  ~ox-deck.el~ exports Org files to HTML presentations
     using =deck.js=.
 
     [[https://meyerweb.com/eric/tools/s5/][s5]] is a set of scripts which also allows to display HTML pages as
     presentations.  ~ox-s5.el~ exports Org files to HTML presentations
     using =s5=.
 
 *** ~ox-groff.el~ by Luis Anaya and Nicolas Goaziou
 
     The [[https://www.gnu.org/software/groff/][groff]] (GNU troff) software is a typesetting package which reads
     plain text mixed with formatting commands and produces formatted
     output.
 
     Luis Anaya and Nicolas Goaziou implemented ~ox-groff.el~ to allow
     conversion from Org files to groff.
 
 *** ~ox-koma-letter.el~ by Nicolas Goaziou and Alan Schmitt
 
     This back-end allow to export Org pages to the =KOMA Scrlttr2= format.
 
 *** ~ox-rss.el~ by Bastien
 
     This back-end lets you export Org pages to RSS 2.0 feeds.  Combined
     with the HTML publishing feature, this allows you to build a blog
     entirely with Org.
 
 ** New features
 
 *** Export
 
 **** New export generic options
 
 If you use Org exporter, we advise you to re-read [[https://orgmode.org/org.html#Exporting][the manual section about
 it]].  It has been updated and includes new options.
 
 Among the new/updated export options, three are of particular importance:
 
 - [[doc:org-export-allow-bind-keywords][org-export-allow-bind-keywords]] :: This option replaces the old option
      =org-export-allow-BIND= and the default value is =nil=, not =confirm=.
      You will need to explicitly set this to =t= in your initialization
      file if you want to allow =#+BIND= keywords.
 
 - [[doc:org-export-with-planning][org-export-with-planning]] :: This new option controls the export of
      =SCHEDULED:, DEADLINE:, CLOSED:= lines, and planning information is
      now skipped by default during export.  This use to be the job of
      [[doc:org-export-with-timestamps][org-export-with-timestamps]], but this latter option has been given a
      new role: it controls the export of /standalone time-stamps/.  When
      set to =nil=, Org will not export active and inactive time-stamps
      standing on a line by themselves or within a paragraph that only
      contains time-stamps.
 
 To check if an option has been introduced or its default value changed in
 Org 8.0, do =C-h v [option] RET= and check if the documentation says that
 the variable has been introduced (or changed) in version 24.4 of Emacs.
 
 **** Enhanced default stylesheet for the HTML exporter
 
 See the new default value of [[doc:org-html-style-default][org-html-style-default]].
 
 **** New tags, classes and ids for the HTML exporter
 
 See the new default value of [[doc:org-html-divs][org-html-divs]].
 
 **** Support for tikz pictures in LaTeX export
 **** ~org-man.el~: New export function for "man" links
 **** ~org-docview.el~: New export function for docview links
 *** Structure editing
 
 **** =C-u C-u M-RET= inserts a heading at the end of the parent subtree
 **** Cycling to the =CONTENTS= view keeps inline tasks folded
 
 [[doc:org-cycle-hook][org-cycle-hook]] as a new function [[doc:org-cycle-hide-inline-tasks][org-cycle-hide-inline-tasks]] which
 prevents the display of inline tasks when showing the content of a subtree.
 
 **** =C-c -= in a region makes a list item for each line
 
 This is the opposite of the previous behavior, where =C-c -= on a region
 would create one item for the whole region, and where =C-u C-c -= would
 create an item for each line.  Now =C-c -= on the selected region creates
 an item per line, and =C-u C-c -= creates a single item for the whole
 region.
 
 **** When transposing words, markup characters are now part of the words
 
 In Emacs, you can transpose words with =M-t=.  Transposing =*these*
 _words__= will preserve markup.
 
 **** New command [[doc:org-set-property-and-value][org-set-property-and-value]] bound to =C-c C-x P=
 
 This command allows you to quickly add both the property and its value.  It
 is useful in buffers where there are many properties and where =C-c C-x p=
 can slow down the flow of editing too much.
 
 **** New commands [[doc:org-next-block][org-next-block]] and [[doc:org-previous-block][org-previous-block]]
 
 These commands allow you to go to the previous block (=C-c M-b= or the
 speedy key =B=) or to the next block (=C-c M-f= or the speedy key =F=.)
 
 **** New commands [[doc:org-drag-line-forward][org-drag-line-forward]] and [[doc:org-drag-line-backward][org-drag-line-backward]]
 
 These commands emulate the old behavior of =M-<down>= and =M-<up>= but are
 now bound to =S-M-<down>= and =S-M-<up>= respectively, since =M-<down>= and
 =M-<up>= now drag the whole element at point (a paragraph, a table, etc.)
 forward and backward.
 
 **** When a list item has a checkbox, inserting a new item uses a checkbox too
 **** When sorting entries/items, only the description of links is considered
 
 Now Org will sort this list
 
 : - [[https://abc.org][B]]
 : - [[https://def.org][A]]
 
 like this:
 
 : - [[https://def.org][A]]
 : - [[https://abc.org][B]]
 
 by comparing the descriptions, not the links.
 Same when sorting headlines instead of list items.
 **** New option =orgstruct-heading-prefix-regexp=
 
 For example, setting this option to "^;;; " in Emacs lisp files and using
 =orgstruct-mode= in those files will allow you to cycle through visibility
 states as if lines starting with ";;; *..." where headlines.
 
 In general, you want to set =orgstruct-heading-prefix-regexp= as a file
 local variable.
 
 **** New behavior of [[doc:org-clone-subtree-with-time-shift][org-clone-subtree-with-time-shift]]
 
 The default is now to ask for a time-shift only when there is a time-stamp.
 When called with a universal prefix argument =C-u=, it will not ask for a
 time-shift even if there is a time-stamp.
 
 **** New option [[doc:org-agenda-restriction-lock-highlight-subtree][org-agenda-restriction-lock-highlight-subtree]]
 
 This defaults to =t= so that the whole subtree is highlighted when you
 restrict the agenda view to it with =C-c C-x <= (or the speed command =<=).
 The default setting helps ensuring that you are not adding tasks after the
 restricted region.  If you find this highlighting too intrusive, set this
 option to =nil=.
 **** New option [[doc:org-closed-keep-when-no-todo][org-closed-keep-when-no-todo]]
 
 When switching back from a =DONE= keyword to a =TODO= keyword, Org now
 removes the =CLOSED= planning information, if any.  It also removes this
 information when going back to a non-TODO state (e.g., with =C-c C-t SPC=).
 If you want to keep the =CLOSED= planning information when removing the
 TODO keyword, set [[doc:org-closed-keep-when-no-todo][org-closed-keep-when-no-todo]] to =t=.
 
 **** New option [[doc:org-image-actual-width][org-image-actual-width]]
 
 This option allows you to change the width of in-buffer displayed images.
 The default is to use the actual width of the image, but you can use a
 fixed value for all images, or fall back on an attribute like
 
 : #+attr_html: :width 300px
 *** Scheduled/deadline
 
 **** Implement "delay" cookies for scheduled items
 
 If you want to delay the display of a scheduled task in the agenda, you can
 now use a delay cookie like this: =SCHEDULED: <2004-12-25 Sat -2d>=.  The
 task is still scheduled on the 25th but will appear in your agenda starting
 from two days later (i.e. from March 27th.)
 
 Imagine for example that your co-workers are not done in due time and tell
 you "we need two more days".  In that case, you may want to delay the
 display of the task in your agenda by two days, but you still want the task
 to appear as scheduled on March 25th.
 
 In case the task contains a repeater, the delay is considered to affect all
 occurrences; if you want the delay to only affect the first scheduled
 occurrence of the task, use =--2d= instead.  See [[doc:org-scheduled-delay-days][org-scheduled-delay-days]]
 and [[doc:org-agenda-skip-scheduled-delay-if-deadline][org-agenda-skip-scheduled-delay-if-deadline]] for details on how to
 control this globally or per agenda.
 
 **** Use =C-u C-u C-c C-s= will insert a delay cookie for scheduled tasks
 
 See the previous section for why delay cookies may be useful.
 
 **** Use =C-u C-u C-c C-d= will insert a warning delay for deadline tasks
 
 =C-u C-u C-c C-d= now inserts a warning delay to deadlines.
 *** Calendar, diary and appts
 
 **** New variable [[doc:org-read-date-minibuffer-local-map][org-read-date-minibuffer-local-map]]
 
 By default, this new local map uses "." to go to today's date, like in the
 normal =M-x calendar RET=.  If you want to deactivate this and to reassign
 the "@" key to =calendar-goto-today=, use this:
 
 #+BEGIN_SRC emacs-lisp
   ;; Unbind "." in Org's calendar:
   (define-key org-read-date-minibuffer-local-map (kbd ".") nil)
 
   ;; Bind "@" to `calendar-goto-today':
   (define-key org-read-date-minibuffer-local-map
               (kbd "@")
               (lambda () (interactive) (org-eval-in-calendar '(calendar-goto-today))))
 #+END_SRC
 
 **** In Org's calendar, =!= displays diary entries of the date at point
 
 This is useful when you want to check if you don't already have an
 appointment when setting new ones with =C-c .= or =C-c s=.  =!= will
 call =diary-view-entries= and display the diary in a separate buffer.
 
 **** [[doc:org-diary][org-diary]]: only keep the descriptions of links
 
 [[doc:org-diary][org-diary]] returns diary information from Org files, but it returns it
 in a diary buffer, not in an Org mode buffer.  When links are displayed,
 only show their description, not the full links.
 *** Agenda
 
 **** New agenda type =agenda*= and entry types =:scheduled* :deadline*=
 
 When defining agenda custom commands, you can now use =agenda*=: this will
 list entries that have both a date and a time.  This is useful when you
 want to build a list of appointments.
 
 You can also set [[doc:org-agenda-entry-types][org-agenda-entry-types]] either globally or locally in
 each agenda custom command and use =:timestamp*= and/or =:deadline*= there.
 
 Another place where this is useful is your =.diary= file:
 
 : %%(org-diary :scheduled*) ~/org/rdv.org
 
 This will list only entries from =~/org/rdv.org= that are scheduled with a
 time value (i.e. appointments).
 
 **** New agenda sorting strategies
 
 [[doc:org-agenda-sorting-strategy][org-agenda-sorting-strategy]] allows these new sorting strategies:
 
 | Strategy       | Explanations                             |
 |----------------+------------------------------------------|
 | timestamp-up   | Sort by any timestamp, early first       |
 | timestamp-down | Sort by any timestamp, late first        |
 | scheduled-up   | Sort by scheduled timestamp, early first |
 | scheduled-down | Sort by scheduled timestamp, late first  |
 | deadline-up    | Sort by deadline timestamp, early first  |
 | deadline-down  | Sort by deadline timestamp, late first   |
 | ts-up          | Sort by active timestamp, early first    |
 | ts-down        | Sort by active timestamp, late first     |
 | tsia-up        | Sort by inactive timestamp, early first  |
 | tsia-down      | Sort by inactive timestamp, late first   |
 
 **** New options to limit the number of agenda entries
 
 You can now limit the number of entries in an agenda view.  This is
 different from filters: filters only /hide/ the entries in the agenda,
 while limits are set while generating the list of agenda entries.
 
 These new options are available:
 
 - [[doc:org-agenda-max-entries][org-agenda-max-entries]] :: limit by number of entries.
 - [[doc:org-agenda-max-todos][org-agenda-max-todos]] :: limit by number of TODOs.
 - [[doc:org-agenda-max-tags][org-agenda-max-tags]] :: limit by number of tagged entries.
 - [[doc:org-agenda-max-effort][org-agenda-max-effort]] :: limit by effort (minutes).
 
 For example, if you locally set [[doc:org-agenda-max-todos][org-agenda-max-todos]] to 3 in an agenda
 view, the agenda will be limited to the first three todos.  Other entries
 without a TODO keyword or beyond the third TODO headline will be ignored.
 
 When setting a limit (e.g. about an effort's sum), the default behavior is
 to exclude entries that cannot be checked against (e.g. entries that have
 no effort property.)  To include other entries too, you can set the limit
 to a negative number.  For example =(setq org-agenda-max-tags -3)= will not
 show the fourth tagged headline (and beyond), but it will also show
 non-tagged headlines.
 
 **** =~= in agenda view sets temporary limits
 
 You can hit =~= in the agenda to temporarily set limits: this will
 regenerate the agenda as if the limits were set.  This is useful for
 example when you want to only see a list of =N= tasks, or a list of tasks
 that take only =N= minutes.
 
 **** "=" in agenda view filters by regular expressions
 
 You can now filter agenda entries by regular expressions using ~=~.  =C-u
 == will filter entries out.  Regexp filters are cumulative.  You can set
 [[doc:org-agenda-regexp-filter-preset][org-agenda-regexp-filter-preset]] to suit your needs in each agenda view.
 
 **** =|= in agenda view resets all filters
 
 Since it's common to combine tag filters, category filters, and now regexp
 filters, there is a new command =|= to reset all filters at once.
 
 **** Allow writing an agenda to an =.org= file
 
 You can now write an agenda view to an =.org= file.  It copies the
 headlines and their content (but not subheadings) into the new file.
 
 This is useful when you want to quickly share an agenda containing the full
 list of notes.
 
 **** New commands to drag an agenda line forward (=M-<down>=) or backward (=M-<up>=)
 
 It sometimes handy to move agenda lines around, just to quickly reorganize
 your tasks, or maybe before saving the agenda to a file.  Now you can use
 =M-<down>= and =M-<up>= to move the line forward or backward.
 
 This does not persist after a refresh of the agenda, and this does not
 change the =.org= files who contribute to the agenda.
 
 **** Use =%b= for displaying "breadcrumbs" in the agenda view
 
 [[doc:org-agenda-prefix-format][org-agenda-prefix-format]] now allows to use a =%b= formatter to tell Org
 to display "breadcrumbs" in the agenda view.
 
 This is useful when you want to display the task hierarchy in your agenda.
 
 **** Use =%l= for displaying the headline's level in the agenda view
 
 [[doc:org-agenda-prefix-format][org-agenda-prefix-format]] allows to use a =%l= formatter to tell Org to
 display entries with additional spaces corresponding to their level in the
 outline tree.
 
 **** [[doc:org-agenda-write][org-agenda-write]] will ask before overwriting an existing file
 
 =M-x org-agenda-write RET= (or =C-c C-w= from an agenda buffer) used to
 overwrite preexisting file with the same name without confirmation.  It now
 asks for a confirmation.
 
 **** New commands =M-m= and =M-*= to toggle (all) mark(s) for bulk action
 
 - [[doc:org-agenda-bulk-toggle][org-agenda-bulk-toggle]] :: this command is bound to =M-m= and toggles
      the mark of the entry at point.
 
 - [[doc:org-agenda-bulk-toggle-all][org-agenda-bulk-toggle-all]] :: this command is bound to =M-*= and
      toggles all the marks in the current agenda.
 
 **** New option [[doc:org-agenda-search-view-max-outline-level][org-agenda-search-view-max-outline-level]]
 
 This option sets the maximum outline level to display in search view.
 E.g. when this is set to 1, the search view will only show headlines of
 level 1.
 
 **** New option [[doc:org-agenda-todo-ignore-time-comparison-use-seconds][org-agenda-todo-ignore-time-comparison-use-seconds]]
 
 This allows to compare times using seconds instead of days when honoring
 options like =org-agenda-todo-ignore-*= in the agenda display.
 
 **** New option [[doc:org-agenda-entry-text-leaders][org-agenda-entry-text-leaders]]
 
 This allows you to get rid of the ">" character that gets added in front of
 entries excerpts when hitting =E= in the agenda view.
 
 **** New formatting string for past deadlines in [[doc:org-agenda-deadline-leaders][org-agenda-deadline-leaders]]
 
 The default formatting for past deadlines is ="%2d d. ago: "=, which makes
 it explicit that the deadline is in the past.  You can configure this via
 [[doc:org-agenda-deadline-leaders][org-agenda-deadline-leaders]].  Note that the width of the formatting
 string is important to keep the agenda alignment clean.
 
 **** New allowed value =repeated-after-deadline= for [[doc:org-agenda-skip-scheduled-if-deadline-is-shown][org-agenda-skip-scheduled-if-deadline-is-shown]]
 
 When [[doc:org-agenda-skip-scheduled-if-deadline-is-shown][org-agenda-skip-scheduled-if-deadline-is-shown]] is set to
 =repeated-after-deadline=, the agenda will skip scheduled items if they are
 repeated beyond the current deadline.
 
 **** New option for [[doc:org-agenda-skip-deadline-prewarning-if-scheduled][org-agenda-skip-deadline-prewarning-if-scheduled]]
 
 This variable may be set to nil, t, the symbol `pre-scheduled', or a number
 which will then give the number of days before the actual deadline when the
 prewarnings should resume.  The symbol `pre-scheduled' eliminates the
 deadline prewarning only prior to the scheduled date.
 
 Read the full docstring for details.
 
 **** [[doc:org-class][org-class]] now supports holiday strings in the skip-weeks parameter
 
 For example, this task will now be skipped only on new year's day:
 
     : * Task
     :   <%%(org-class 2012 1 1 2013 12 12 2 "New Year's Day")>
 *** Capture
 
 **** Allow =C-1= as a prefix for [[doc:org-agenda-capture][org-agenda-capture]] and [[doc:org-capture][org-capture]]
 
 With a =C-1= prefix, the capture mechanism will use the =HH:MM= value at
 point (if any) or the current =HH:MM= time as the default time for the
 capture template.
 
 **** Expand keywords within %(sexp) placeholder in capture templates
 
 If you use a =%:keyword= construct within a =%(sexp)= construct, Org will
 expand the keywords before expanding the =%(sexp)=.
 
 **** Allow to contextualize capture (and agenda) commands by checking the name of the buffer
 
 [[doc:org-capture-templates-contexts][org-capture-templates-contexts]] and [[doc:org-agenda-custom-commands-contexts][org-agenda-custom-commands-contexts]]
 allow you to define what capture templates and what agenda commands should
 be available in various contexts.  It is now possible for the context to
 check against the name of the buffer.
 *** Tag groups
 
 Using =#+TAGS: { Tag1 : Tag2 Tag3 }= will define =Tag1= as a /group tag/
 (note the colon after =Tag1=).  If you search for =Tag1=, it will return
 headlines containing either =Tag1=, =Tag2= or =Tag3= (or any combination
 of those tags.)
 
 You can use group tags for sparse tree in an Org buffer, for creating
 agenda views, and for filtering.
 
 See https://orgmode.org/org.html#Tag-groups for details.
 
 *** Links
 
 **** =C-u C-u M-x org-store-link RET= will ignore non-core link functions
 
 Org knows how to store links from Org buffers, from info files and from
 other Emacs buffers.  Org can be taught how to store links from any buffer
 through new link protocols (see [[https://orgmode.org/org.html#Adding-hyperlink-types]["Adding hyperlink types"]] in the manual.)
 
 Sometimes you want Org to ignore added link protocols and store the link
 as if the protocol was not known.
 
 You can now do this with =C-u C-u M-x org-store-link RET=.
 
 **** =C-u C-u C-u M-x org-store-link RET= on an active region will store links for each lines
 
 Imagine for example that you want to store a link for every message in a
 Gnus summary buffer.  In that case =C-x h C-u C-u C-u M-x org-store-link
 RET= will store a link for every line (i.e. message) if the region is
 active.
 
 **** =C-c C-M-l= will add a default description for links which don't have one
 
 =C-c C-M-l= inserts all stored links.  If a link does not have a
 description, this command now adds a default one, so that we are not mixing
 with-description and without-description links when inserting them.
 
 **** No curly braces to bracket links within internal links
 
 When storing a link to a headline like
 
 : * See [[https://orgmode.org][Org website]]
 
 [[doc:org-store-link][org-store-link]] used to convert the square brackets into curly brackets.
 It does not anymore, taking the link description or the link path, when
 there is no description.
 *** Table
 
 **** Switching between #+TBLFM lines
 
 If you have several =#+TBLFM= lines below a table, =C-c C-c= on a line will
 apply the formulas from this line, and =C-c C-c= on another line will apply
 those other formulas.
 
 **** You now use "nan" for empty fields in Calc formulas
 
 If empty fields are of interest, it is recommended to reread the section
 [[https://orgmode.org/org.html#Formula-syntax-for-Calc][3.5.2 Formula syntax for Calc]] of the manual because the description for the
 mode strings has been clarified and new examples have been added towards
 the end.
 
 **** Handle localized time-stamps in formulas evaluation
 
 If your =LOCALE= is set so that Org time-stamps use another language than
 english, and if you make time computations in Org's table, it now works by
 internally converting the time-stamps with a temporary =LOCALE=C= before
 doing computation.
 
 **** New lookup functions
 
 There are now three lookup functions:
 
 - [[doc:org-lookup-first][org-lookup-first]]
 - [[doc:org-lookup-last][org-lookup-last]]
 - [[doc:org-lookup-all][org-lookup-all]]
 
 See [[https://orgmode.org/org.html#Lookup-functions][the manual]] for details.
 *** Startup keywords
 
 These new startup keywords are now available:
 
 | Startup keyword                  | Option                                      |
 |----------------------------------+---------------------------------------------|
 | =#+STARTUP: logdrawer=           | =(setq org-log-into-drawer t)=              |
 | =#+STARTUP: nologdrawer=         | =(setq org-log-into-drawer nil)=            |
 |----------------------------------+---------------------------------------------|
 | =#+STARTUP: logstatesreversed=   | =(setq org-log-states-order-reversed t)=    |
 | =#+STARTUP: nologstatesreversed= | =(setq org-log-states-order-reversed nil)=  |
 |----------------------------------+---------------------------------------------|
 | =#+STARTUP: latexpreview=        | =(setq org-startup-with-latex-preview t)=   |
 | =#+STARTUP: nolatexpreview=      | =(setq org-startup-with-latex-preview nil)= |
 
 *** Clocking
 
 **** New option [[doc:org-clock-rounding-minutes][org-clock-rounding-minutes]]
 
 E.g. if [[doc:org-clock-rounding-minutes][org-clock-rounding-minutes]] is set to 5, time is 14:47 and you
 clock in: then the clock starts at 14:45.  If you clock out within the next
 5 minutes, the clock line will be removed; if you clock out 8 minutes after
 your clocked in, the clock out time will be 14:50.
 
 **** New option [[doc:org-time-clocksum-use-effort-durations][org-time-clocksum-use-effort-durations]]
 
 When non-nil, =C-c C-x C-d= uses effort durations.  E.g., by default, one
 day is considered to be a 8 hours effort, so a task that has been clocked
 for 16 hours will be displayed as during 2 days in the clock display or in
 the clocktable.
 
 See [[doc:org-effort-durations][org-effort-durations]] on how to set effort durations and
 [[doc:org-time-clocksum-format][org-time-clocksum-format]] for more on time clock formats.
 
 **** New option [[doc:org-clock-x11idle-program-name][org-clock-x11idle-program-name]]
 
 This allows to set the name of the program which prints X11 idle time in
 milliseconds.  The default is to use =x11idle=.
 
 **** New option [[doc:org-use-last-clock-out-time-as-effective-time][org-use-last-clock-out-time-as-effective-time]]
 
 When non-nil, use the last clock out time for [[doc:org-todo][org-todo]].  Note that this
 option has precedence over the combined use of [[doc:org-use-effective-time][org-use-effective-time]] and
 [[doc:org-extend-today-until][org-extend-today-until]].
 
 **** =S-<left/right>= on a clocksum column will update the sum by updating the last clock
 **** =C-u 3 C-S-<up/down>= will update clock timestamps synchronously by 3 units
 **** New parameter =:wstart= for clocktables to define the week start day
 **** New parameter =:mstart= to state the starting day of the month
 **** Allow relative times in clocktable tstart and tend options
 **** The clocktable summary is now a caption
 **** =:tstart= and =:tend= and friends allow relative times like "<-1w>" or "<now>"
 *** Babel
 
 **** You can now use =C-c C-k= for [[doc:org-edit-src-abort][org-edit-src-abort]]
 
 This allows you to quickly cancel editing a source block.
 
 **** =C-u C-u M-x org-babel-tangle RET= tangles by the target file of the block at point
 
 This is handy if you want to tangle all source code blocks that have the
 same target than the block at point.
 
 **** New options for auto-saving the base buffer or the source block editing buffer
 
 When [[doc:org-edit-src-turn-on-auto-save][org-edit-src-turn-on-auto-save]] is set to =t=, editing a source block
 in a new window will turn on =auto-save-mode= and save the code in a new
 file under the same directory than the base Org file.
 
 When [[doc:org-edit-src-auto-save-idle-delay][org-edit-src-auto-save-idle-delay]] is set to a number of minutes =N=,
 the base Org buffer will be saved after this number of minutes of idle
 time.
 
 **** New =:post= header argument post-processes results
 
      This header argument may be used to pass the results of the current
      code block through another code block for post-processing.  See the
      manual for a usage example.
 
 **** Commented out heading are ignored when collecting blocks for tangling
 
 If you comment out a heading (with =C-c ;= anywhere on the heading or in
 the subtree), code blocks from within this heading are now ignored when
 collecting blocks for tangling.
 
 **** New option [[doc:org-babel-hash-show-time][org-babel-hash-show-time]] to show a time-stamp in the result hash
 **** Do not ask for confirmation if cached value is current
 
 Do not run [[doc:org-babel-confirm-evaluate][org-babel-confirm-evaluate]] if source block has a cache and the
 cache value is current as there is no evaluation involved in this case.
 **** =ob-sql.el= and =ob-python.el= have been improved.
 **** New Babel files only need to =(require 'ob)=
 
 When writing a new Babel file, you now only need to use =(require 'ob)=
 instead of requiring each Babel library one by one.
 *** Faces
 
 - Org now fontifies radio link targets by default
 - In the agenda, use [[doc:org-todo-keyword-faces][org-todo-keyword-faces]] to highlight selected TODO keywords
 - New face [[doc:org-priority][org-priority]], enhanced fontification of priority cookies in agenda
 - New face [[doc:org-tag-group][org-tag-group]] for group tags
 
 ** Miscellaneous
 
 - New speedy key =s= pour [[doc:org-narrow-to-subtree][org-narrow-to-subtree]]
 - Handling of [[doc:org-html-table-row][org-html-table-row]] has been updated (incompatible change)
 - [[doc:org-export-html-table-tag][org-export-html-table-tag]] is replaced by [[doc:org-html-table-default-attributes][org-html-table-default-attributes]]
 - Support using =git-annex= with Org attachments
 - org-protocol: Pass optional value using query in url to capture from protocol
 - When the refile history is empty, use the current filename as default
 - When you cannot change the TODO state of a task, Org displays the blocking task
 - New option [[doc:org-mobile-allpriorities][org-mobile-allpriorities]]
 - org-bibtex.el now use =visual-line-mode= instead of the deprecated =longlines-mode=
 - [[doc:org-format-latex-options][org-format-latex-options]] allows to set the foreground/background colors automatically
 - New option [[doc:org-archive-file-header-format][org-archive-file-header-format]]
 - New "neg" entity in [[doc:org-entities][org-entities]]
 - New function [[doc:org-docview-export][org-docview-export]] to export docview links
 - New =:eps= header argument for ditaa code blocks
 - New option [[doc:org-gnus-no-server][org-gnus-no-server]] to start Gnus with =gnus-no-server=
 - Org is now distributed with =htmlize.el= version 1.43
 - ~org-drill.el~ has been updated to version 2.3.7
 - ~org-mac-iCal.el~ now supports OS X versions up to 10.8
 - Various improvements to ~org-contacts.el~ and =orgpan.el=
 
 ** Outside Org
 
 *** Spanish translation of the Org guide by David Arroyo Menéndez
 
 David (and others) translated the Org compact guide in spanish:
 
 You can read the [[https://orgmode.org/worg/orgguide/orgguide.es.pdf][PDF guide]].
 
 *** ~poporg.el~ and ~outorg.el~
 
 Two new libraries (~poporg.el~ by François Pinard and ~outorg.el~ by
 Thorsten Jolitz) now enable editing of comment-sections from source-code
 buffers in temporary Org-mode buffers, making the full editing power of
 Org-mode available.  ~outorg.el~ comes together with ~outshine.el~ and
 ~navi-mode.el~, two more libraries by Thorsten Jolitz with the goal to give
 source-code buffers the /look & feel/ of Org-mode buffers while greatly
 improving navigation and structure editing.  A detailed description can be
 found here: https://orgmode.org/worg/org-tutorials/org-outside-org.html
 
 Here are two screencasts demonstrating Thorsten's tools:
 
 - [[https://youtu.be/nqE6YxlY0rw]["Modern conventions for Emacs Lisp files"]]
 - [[https://www.youtube.com/watch?v%3DII-xYw5VGFM][Exploring Bernt Hansen's Org-mode tutorial with 'navi-mode']]
 
 *** MobileOrg for iOS
 
 MobileOrg for iOS back in the App Store The 1.6.0 release was focused on
 the new Dropbox API and minor bug fixes but also includes a new ability to
 launch in Capture mode.  Track development and contribute [[https://github.com/MobileOrg/mobileorg/issues][on github]].
 
 * Version 7.9.3
 
 ** New option [[doc::org-agenda-use-tag-inheritance][org-agenda-use-tag-inheritance]]
 
 [[doc::org-use-tag-inheritance][org-use-tag-inheritance]] controls whether tags are inherited when
 org-tags-view is called (either in =tags=, =tags-tree= or =tags-todo=
 agenda views.)
 
 When generating other agenda types such as =agenda=, =todo= and
 =todo-tree=, tags inheritance is not used when selecting the entries
 to display.  Still, you might want to have all tag information correct
 in the agenda buffer, e.g. for tag filtering.  In that case, add the
 agenda type to this variable.
 
 Setting this variable to nil should considerably speeds up the agenda
 generation.
 
 Note that the default was to display inherited tags in the agenda
 lines even if `org-use-tag-inheritance' was nil.  The default is now
 to *never* display inherited tags in agenda lines, but to /know/ about
 them when the agenda type is listed in [[doc::org-agenda-use-tag-inheritance][org-agenda-use-tag-inheritance]].
 
 ** New default value =nil= for [[doc::org-agenda-dim-blocked-tasks][org-agenda-dim-blocked-tasks]]
 
 Using `nil' as the default value speeds up the agenda generation.  You
 can hit `#' (or `C-u #') in agenda buffers to temporarily dim (or turn
 invisible) blocked tasks.
 
 ** New speedy keys for [[doc::org-speed-commands-default][org-speed-commands-default]]
 
 You can now use `:' (instead of `;') for setting tags---this is
 consistent with using the `:' key in agenda view.
 
 You can now use `=' for [[doc::org-columns][org-columns]].
 
 ** =org-float= is now obsolete, use =diary-float= instead
 ** No GPL manual anymore
 
 There used to be a GPL version of the Org manual, but this is not the
 case anymore, the Free Software Foundation does not permit this.
 
 The GNU FDL license is now included in the manual directly.
 
 ** Enhanced compatibility with Emacs 22 and XEmacs
 
 Thanks to Achim for his work on enhancing Org's compatibility with
 various Emacsen.  Things may not be perfect, but Org should work okay
 in most environments.
 
 * Version 7.9.2
 
 ** New ELPA repository for Org packages
 
 You can now add the Org ELPA repository like this:
 
 #+BEGIN_SRC emacs-lisp
 (add-to-list 'package-archives '("org" . "https://orgmode.org/elpa/") t)
 #+END_SRC
 
 It contains both the =org-*.tar= package (the core Org distribution, also
 available through https://elpa.gnu.org) and the =org-plus*.tar= package (the
 extended Org distribution, with non-GNU packages from the =contrib/=
 directory.)
 
 See https://orgmode.org/elpa/
 
 ** Overview of the new keybindings
 
    | Keybinding      | Speedy | Command                     |
    |-----------------+--------+-----------------------------|
    | =C-c C-x C-z=   |        | [[doc::org-clock-resolve][org-clock-resolve]]           |
    | =C-c C-x C-q=   |        | [[doc::org-clock-cancel][org-clock-cancel]]            |
    | =C-c C-x C-x=   |        | [[doc::org-clock-in-last][org-clock-in-last]]           |
    | =M-h=           |        | [[doc::org-mark-element][org-mark-element]]            |
    | =*=             |        | [[doc::org-agenda-bulk-mark-all][org-agenda-bulk-mark-all]]    |
    | =C-c C-M-l=     |        | [[doc::org-insert-all-links][org-insert-all-links]]        |
    | =C-c C-x C-M-v= |        | [[doc::org-redisplay-inline-images][org-redisplay-inline-images]] |
    | =C-c C-x E=     | =E=    | [[doc::org-inc-effort][org-inc-effort]]              |
    |                 | =#=    | [[doc::org-toggle-comment][org-toggle-comment]]          |
    |                 | =:=    | [[doc::org-columns][org-columns]]                 |
    |                 | =W=    | Set =APPT_WARNTIME=         |
    | =k=             |        | [[doc::org-agenda-capture][org-agenda-capture]]          |
    | C-c ,           | ,      | [[doc::org-priority][org-priority]]                |
 
 ** New package and Babel language
 
 *** =org-eshell.el= by Konrad Hinsen is now in Org
 
     =org-eshell.el= allows you to create links from [[https://www.gnu.org/software/emacs/manual/html_node/eshell/index.html][Eshell]].
 
 *** Support for execution of Scala code blocks (see ob-scala.el)
 *** Support for execution of IO code blocks (see ob-io.el)
 
 ** Incompatible changes
 
    - If your code relies on =org-write-agenda=, please use
      [[doc::org-agenda-write][org-agenda-write]] from now on.
 
    - If your code relies on =org-make-link=, please use =concat=
      instead.
 
    - =org-link-to-org-use-id= has been renamed to
      =org-id-link-to-org-use-id= and its default value is nil.  The
      previous default was =create-if-interactive-and-no-custom-id=.
 
 ** New features and user-visible changes
 
 *** Org Element
 
     =org-element.el= is a toolbox for parsing and analyzing "elements"
     in an Org-mode buffer.  This has been written by Nicolas Goaziou
     and has been tested for quite some time.  It is now part of Org's
     core and many core functions rely on this package.
 
     Two functions might be particularly handy for users:
     =org-element-at-point= and =org-element-context=.
 
     See the docstrings for more details.
 
     Below is a list of editing and navigating commands that now rely
     on =org-element.el=.
 
 **** [[doc::org-fill-paragraph][org-fill-paragraph]] has been completely rewritten
 
      The filling mechanisms now rely on org-element, trying to do the
      right thing on each element in various contexts.  E.g. filling in
      a list item will preserve indentation; filling in message-mode
      will fall back on the relevant filling functions; etc.
 
 **** [[doc::org-metaup][org-metaup]] and [[doc::org-metadown][org-metadown]] will drag the element backward/forward
 
      If you want to get the old behavior (i.e. moving a line up and
      down), you can first select the line as an active region, then
      =org-metaup= or =org-metadown= to move the region backward or
      forward.  This also works with regions bigger than just one line.
 
 **** [[doc::org-up-element][org-up-element]] and [[doc::org-down-element][org-down-element]] (respectively =C-c C-^= and =C-c C-_=)
 
      This will move the point up/down in the hierarchy of elements.
 
 **** [[doc::org-backward-element][org-backward-element]] and [[doc::org-forward-element][org-forward-element]] (respectively =M-{= and =M-}=)
 
      This will move the point backward/forward in the hierarchy of
      elements.
 
 **** [[doc::org-narrow-to-element][org-narrow-to-element]] will narrow to the element at point
 **** [[doc::org-mark-element][org-mark-element]] will mark the element at point
 
      This command is bound to =M-h= and will mark the element at
      point.  If the point is at a paragraph, it will mark the
      paragraph.  If the point is at a list item, it will mark the list
      item.  Etc.
 
      Note that if point is at the beginning of a list, it will mark
      the whole list.
 
      To mark a subtree, you can either use =M-h= on the headline
      (since there is no ambiguity about the element you're at) or
      [[doc::org-mark-subtree][org-mark-subtree]] (=C-c @=) anywhere in the subtree.
 
      Invoking [[doc::org-mark-element][org-mark-element]] repeatedly will try to mark the next
      element on top of the previous one(s).  E.g. hitting =M-h= twice
      on a headline will mark the current subtree and the next one on
      the same level.
 
 *** Org Agenda
 
 **** New option [[doc::org-agenda-sticky][org-agenda-sticky]]
 
      There is a new option =org-agenda-sticky= which enables "sticky"
      agendas.  Sticky agendas remain opened in the background so that
      you don't need to regenerate them each time you hit the
      corresponding keystroke.  This is a big time saver.
 
      When [[doc::org-agenda-sticky][org-agenda-sticky]] is =non-nil=, the agenda buffer will be
      named using the agenda key and its description.  In sticky
      agendas, the =q= key will just bury the agenda buffers and
      further agenda commands will show existing buffer instead of
      generating new ones.
 
      If [[doc::org-agenda-sticky][org-agenda-sticky]] is set to =nil=, =q= will kill the single
      agenda buffer.
 
 **** New option [[doc::org-agenda-custom-commands-contexts][org-agenda-custom-commands-contexts]]
 
      Setting this option allows you to define specific context where
      agenda commands should be available from.  For example, when set
      to this value
 
      #+BEGIN_SRC emacs-lisp
   (setq org-agenda-custom-commands-contexts
         '(("p" (in-file . "\\.txt"))))
 #+END_SRC
 
      then the =p= agenda command will only be available from buffers
      visiting *.txt files.  See the docstring and the manual for more
      details on how to use this.
 
 **** Changes in bulk actions
 
      The set of commands starting with =k ...= as been deleted and the
      features have been merged into the "bulk action" feature.
 
      After you marked some entries in the agenda, if you call =B s=,
      the agenda entries will be rescheduled using the date at point if
      on a date header.  If you are on an entry with a timestamp, you
      will be prompted for a date to reschedule your marked entries to,
      using the timestamp at point as the default prompt.
 
      You can now use =k= to capture the marked entry and use the date
      at point as an overriding date for the capture template.
 
      To bind this behavior to =M-x org-capture RET= (or its
      keybinding), set the new option [[doc::org-capture-use-agenda-date][org-capture-use-agenda-date]] to
      =t=.
 
 **** =N= and =P= in the agenda will move to the next/previous item
 
 **** New command [[doc::org-agenda-bulk-mark-all][org-agenda-bulk-mark-all]] to mark all items
 
      This new command is bound to =*= in agenda mode.
 
      There is also a new option [[doc::org-agenda-bulk-mark-char][org-agenda-bulk-mark-char]] to set the
      character to use as a mark for bulk actions.
 
 **** New option [[doc::org-agenda-persistent-marks][org-agenda-persistent-marks]]
 
      When set to =non-nil=, marks will remain visible after a bulk
      action.  You can temporarily toggle this by pressing =p= when
      invoking [[doc::org-agenda-bulk-action][org-agenda-bulk-action]].  Marks are deleted if your
      rebuild the agenda buffer or move to another date/span (e.g. with
      =f= or =w=).
 
 **** New option [[doc::org-agenda-skip-timestamp-if-deadline-is-shown][org-agenda-skip-timestamp-if-deadline-is-shown]]
 
      =Non-nil= means skip timestamp line if same entry shows because
      of deadline.
 
      In the agenda of today, an entry can show up multiple times
      because it has both a plain timestamp and has a nearby deadline.
      When this variable is t, then only the deadline is shown and the
      fact that the entry has a timestamp for or including today is not
      shown.  When this variable is =nil=, the entry will be shown
      several times.
 
 **** New =todo-unblocked= and =nottodo-unblocked= skip conditions
 
      See the [[https://orgmode.org/cgit.cgi/org-mode.git/commit/?id=f426da][git commit]] for more explanations.
 
 **** Allow category filtering in the agenda
 
      You can now filter the agenda by category.  Pressing "<" will
      filter by the category of the item on the current line, and
      pressing "<" again will remove the filter.  You can combine tag
      filters and category filters.
 
      You can use =org-agenda-category-filter= in your custom agenda
      views and =org-agenda-category-filter-preset= in your main
      configuration.
 
      See also the new command [[doc::org-agenda-filter-by-top-category][org-agenda-filter-by-top-category]]:
      hitting =^= will filter by "Top" category: only show entries that
      are of the same category than the Top category of the entry at
      point.
 
 *** Org Links
 
 **** Inserting links
 
      When inserting links through [[doc::org-insert-link][org-insert-link]], the description is
      now displayed first, followed by the literal link, as the
      description is often more useful when you look for the link you
      want to insert.
 
      Completion now complete both literal links and description.  If
      you complete a description, the literal link and its description
      will be inserted directly, whereas when you complete the literal
      link, you will be prompted for a description (as with Org 7.8.)
 
      In the completion buffer, links to the current buffer are now
      highlighted.
 
 **** New templates =%h= and =%(sexp)= for abbreviated links
 
      On top of =%s= template, which is replaced by the link tag in
      abbreviated links, you can now use =%h= (which does the same than =%s=
      but does not hexify the tag) and =%(sexp)= (which can run a function
      that takes the tag as its own argument.)
 
 **** New link type =help=
 
      You can now create links from =help= buffers.
 
      For example, if you request help for the command [[doc::org-agenda][org-agenda]] with
      =C-h f org-agenda RET=, creating a link from this buffer will let
      you go back to the same buffer.
 
 **** New command [[doc::org-insert-all-links][org-insert-all-links]]
 
      This will insert all links as list items.  With a universal
      prefix argument, links will not be deleted from the variable
      =org-stored-links=.
 
      This new command is bound to =C-c C-M-l=.
 
 **** New option [[doc::org-url-hexify-p][org-url-hexify-p]]
 
      When set to =nil=, the =URL= part of a link will not be hexified.
 
 **** Org can now open multiple shell links
 
 **** New option [[doc::org-doi-server-url][org-doi-server-url]] to specify an alternate DOI server
 
 **** RET now follows time stamps links
 
 *** Org Editing
 
 **** [[doc::org-todo][org-todo]] and =org-archive-*= can now loop in the active region
 
      When [[doc::org-loop-over-headlines-in-active-region][org-loop-over-headlines-in-active-region]] is =non-nil=, using
      [[doc::org-todo][org-todo]] or =org-archive-*= commands in the active region will
      loop over headlines.  This is handy if you want to set the TODO
      keyword for several items, or archive them quickly.
 
 **** You can now set tags for headlines in a region
 
      If [[doc::org-loop-over-headlines-in-active-region][org-loop-over-headlines-in-active-region]] is =non-nil=, then
      selecting the region and hitting =C-c C-q= will set the tags for
      all headlines in the region.
 
 **** New command [[doc::org-insert-drawer][org-insert-drawer]] to insert a drawer interactively
 
 **** Comments start with "^[ \t]*# " anywhere on a line
 
      Note that the space after the hashtag is mandatory.  Comments
      with "^#+" are not supported anymore.
 
 **** New speed key =#= to toggle the COMMENT cookie on a headline
 
 **** =indent-region-function= is now set to [[doc::org-indent-region][org-indent-region]]
 
      =C-M-\= should now produce useful results.
 
      You can unindent the buffer with [[doc::org-unindent-buffer][org-unindent-buffer]].
 
 **** New option [[doc::org-allow-promoting-top-level-subtree][org-allow-promoting-top-level-subtree]]
 
      When =non-nil=, =S-M-<left>= will promote level-1 subtrees
      containing other subtrees.  The level-1 headline will be
      commented out.  You can revert to the previous state with =M-x
      undo RET=.
 
 *** Org Clock
 
 **** New keybinding =C-c C-x C-z= for [[doc::org-clock-resolve][org-clock-resolve]]
 
 **** New keybinding =C-c C-x C-q= for [[doc::org-clock-cancel][org-clock-cancel]]
 
 **** New command [[doc::org-clock-in-last][org-clock-in-last]] to clock in the last clocked item
 
      This command is bound to =C-c C-x C-x= and will clock in the last
      clocked entry, if any.
 
 **** =C-u M-x= [[doc::org-clock-out][org-clock-out]] =RET= now prompts for a state to switch to
 
 **** =S-M-<up/down>= on a clock timestamps adjusts the previous/next clock
 
 **** New option [[doc::org-clock-continuously][org-clock-continuously]]
 
      When set to =nil=, clocking in a task will first try to find the
      last clocked out task and restart from when that task was clocked
      out.
 
      You can temporarily activate continuous clocking with =C-u C-u
      C-u M-x= [[doc::org-clock-in][org-clock-in]] =RET= (three universal prefix arguments)
      and =C-u C-u M-x= [[doc::org-clock-in-last][org-clock-in-last]] =RET= (two universal prefix
      arguments).
 
 
 **** New option [[doc::org-clock-frame-title-format][org-clock-frame-title-format]]
 
      This option sets the value of =frame-title-format= when clocking
      in.
 
 **** New options for controlling the clockreport display
 
      [[doc::org-clock-file-time-cell-format][org-clock-file-time-cell-format]]: Format string for the file time
      cells in clockreport.
 
      [[doc::org-clock-total-time-cell-format][org-clock-total-time-cell-format]]: Format string for the total
      time cells in clockreport.
 
 
 **** New options for controlling the clock/timer display
 
      [[doc::org-clock-clocked-in-display][org-clock-clocked-in-display]]: control whether the current clock
      is displayed in the mode line and/or frame title.
 
      [[doc::org-timer-display][org-timer-display]]: control whether the current timer is displayed
      in the mode line and/or frame title.
 
      This allows the clock and timer to be displayed in the frame
      title instead of, or as well as, the mode line.  This is useful
      for people with limited space in the mode line but with ample
      space in the frame title.
 
 *** Org Appearance
 
 **** New option [[doc::org-custom-properties][org-custom-properties]]
 
      The visibility of properties listed in this options can be turn
      on/off with [[doc::org-toggle-custom-properties-visibility][org-toggle-custom-properties-visibility]].  This might
      be useful for properties used by third-part tools or that you
      don't want to see temporarily.
 
 **** New command [[doc::org-redisplay-inline-images][org-redisplay-inline-images]]
 
      This will redisplay all images.  It is bound to =C-c C-x C-M-v=.
 
 **** New entities in =org-entities.el=
 
      There are these new entities:
 
      : ("tilde" "\\~{}" nil "&tilde;" "~" "~" "~")
      : ("slash" "/" nil "/" "/" "/" "/")
      : ("plus" "+" nil "+" "+" "+" "+")
      : ("under" "\\_" nil "_" "_" "_" "_")
      : ("equal" "=" nil "=" "=" "=" "=")
      : ("asciicirc" "\\textasciicircum{}" nil "^" "^" "^" "^")
 
 **** New face =org-list-dt= for definition terms
 **** New face =org-date-selected= for the selected calendar day
 **** New face value for =org-document-title=
 
      The face is back to a normal height.
 
 *** Org Columns
 
 **** New speed command =:= to activate the column view
 **** New special property =CLOCKSUM_T= to display today's clocked time
 
      You can use =CLOCKSUM_T= the same way you use =CLOCKSUM=.  It
      will display the time spent on tasks for today only.
 
 **** Use the =:COLUMNS:= property in columnview dynamic blocks
 
      If the =:COLUMNS:= is set in a subtree, the columnview dynamic
      block will use its value as the column format.
 
 **** Consider inline tasks when computing a sum
 
 *** Org Dates and Time Stamps
 
 **** Enhanced [[doc::org-sparse-tree][org-sparse-tree]]
 
      =C-c /= can now check for time ranges.
 
      When checking for dates with =C-c /= it is useful to change the
      type of dates that you are interested in.  You can now do this
      interactively with =c= after =C-c /= and/or by setting
      [[doc::org-sparse-tree-default-date-type][org-sparse-tree-default-date-type]] to the default value you want.
 
 **** Support for hourly repeat cookies
 
      You can now use
 
      : SCHEDULED: <2012-08-20 lun. 08:00 +1h>
 
      if you want to add an hourly repeater to an entry.
 
 **** =C-u C-u C-c .= inserts a time-stamp with no prompt
 
 **** When (setq [[doc::org-read-date-prefer-future][org-read-date-prefer-future]] 'time), accept days in the prompt
 
      "8am Wed" and "Wed 8am" are now acceptable values when entering a
      date from the prompt.  If [[doc::org-read-date-prefer-future][org-read-date-prefer-future]] is set to
      =time=, this will produce the expected prompt indication.
 
 **** New option [[doc::org-datetree-add-timestamp][org-datetree-add-timestamp]]
 
      When set to =non-nil=, datetree entries will also have a
      timestamp.  This is useful if you want to see these entries in a
      sparse tree with =C-c /=.
 
 *** Org Capture
 
 **** New command [[doc::org-capture-string][org-capture-string]]
 
      M-x [[doc::org-capture-string][org-capture-string]] RET will prompt for a string and a capture
      template.  The string will be used as an annotation for the
      template.  This is useful when capturing in batch mode as it lets
      you define the content of the template without being in Emacs.
 
 **** New option [[doc::org-capture-templates-contexts][org-capture-templates-contexts]]
 
      Setting this option allows you to define specific context where
      capture templates should be available from.  For example, when
      set to this value
 
      #+BEGIN_SRC emacs-lisp
   (setq org-capture-templates-contexts
         '(("c" (in-mode . "message-mode"))))
 #+END_SRC
 
      then the =c= capture template will only be available from
      =message-mode= buffers.  See the docstring and the manual for
      more details on how to use this.
 
 **** New =%l= template to insert the literal link
 **** New option [[doc::org-capture-bookmark][org-capture-bookmark]]
 
      Org used to automatically add a bookmark with capture a note.
      You can now turn this on by setting [[doc::org-capture-bookmark][org-capture-bookmark]] to
      =nil=.
 
 **** Expand =%<num>= escape sequences into text entered for <num>'th =%^{PROMPT}= escape
 
      See the manual for more explanations.
 
 **** More control over empty lines
 
      You can use =:empty-lines-before= and =:empty-lines-after= to
      control the insertion of empty lines.  Check the manual for more
      explanations.
 
 **** New hook [[doc::org-capture-prepare-finalize-hook][org-capture-prepare-finalize-hook]]
 
      This new hook runs before the finalization process starts.
 
 *** Org Export
 
 **** New functions =orgtbl-to-table.el= and =orgtbl-to-unicode=
 
      =orgtbl-to-table.el= convert the table to a =table.el= table, and
      =orgtbl-to-unicode= will use =ascii-art-to-unicode.el= (when
      available) to print beautiful tables.
 
 **** [[doc::org-table-export][org-table-export]] now a bit clever about the target format
 
      When you specify a file name like =table.csv=, [[doc::org-table-export][org-table-export]]
      will now suggest =orgtbl-to-csv= the default method for exporting
      the table.
 
 **** New option [[doc::org-export-date-timestamp-format][org-export-date-timestamp-format]]
 
      The option allows to set a time string format for Org timestamps
      in the #+DATE option.
 
 **** LaTeX: New options for exporting table rules :tstart, :hline and :tend
 
      See [[doc::org-export-latex-tables-hline][org-export-latex-tables-hline]] and [[doc::org-export-latex-tables-tend][org-export-latex-tables-tend]].
 
 **** LaTeX: You can now set =:hfmt= from =#+ATTR_LaTeX=
 **** Beamer: Add support and keybinding for the =exampleblock= environment
 
      Add support for these languages in [[doc::org-export-language-setup][org-export-language-setup]].
      More languages are always welcome.
 
 **** Beamer: New option [[doc::org-beamer-inherited-properties][org-beamer-inherited-properties]]
 
      This option allows Beamer export to inherit some properties.
      Thanks to Carsten for implementing this.
 
 **** ODT: Add support for ODT export in org-bbdb.el
 **** ODT: Add support for indented tables (see [[https://orgmode.org/cgit.cgi/org-mode.git/commit/?id=e9fd33][this commit]] for details)
 **** ODT: Improve the conversion from ODT to other formats
 **** ASCII: Swap the level-1/level-2 characters to underline the headlines
 **** Support for Chinese, simplified Chinese, Russian, Ukrainian and Japanese
 **** HTML: New option [[doc::org-export-html-date-format-string][org-export-html-date-format-string]]
 
      Format string to format the date and time in HTML export.  Thanks
      to Sébastien Vauban for this patch.
 
 *** Org Babel
 
 **** New =:results drawer= parameter
 
 =:results drawer= replaces =:results wrap=, which is deprecated but still
 supported.
 
 **** =:results org= now put results in a =#+BEGIN_SRC org= block
 
 =:results org= used to put results in a =#+BEGIN_ORG= block but it now puts
 results in a =#+BEGIN_SRC org= block, with comma-escaped lines.
 
 =#+BEGIN_ORG= blocks are obsolete.
 
 **** Exporting =#+BEGIN_SRC org= blocks exports the code
 
 It used to exports the results of the code.
 
 *** Miscellaneous
 
 **** New menu entry for [[doc::org-refile][org-refile]]
 **** Allow capturing to encrypted entries
 
 If you capture to an encrypted entry, it will be decrypted before
 inserting the template then re-encrypted after finalizing the capture.
 
 **** Inactive timestamps are now handled in tables
 
 Calc can do computation on active time-stamps like <2012-09-29 sat.>.
 Inactive time-stamps in a table's cell are now internally deactivated so
 that Calc formulas can operate on them.
 
 **** [[doc::org-table-number-regexp][org-table-number-regexp]] can now accept comma as decimal mark
 **** Org allows a new property =APPT_WARNTIME=
 
      You can set it with the =W= speedy key or set it manually.  When
      set, exporting to iCalendar and [[doc::org-agenda-to-appt][org-agenda-to-appt]] will use the
      value of this property as the number of minutes for the warning
      alarm.
 
 **** New command [[doc::org-inc-effort][org-inc-effort]]
 
      This will increment the effort value.
 
      It is bound to =C-c C-x E= and to =E= as a speedy command.
 
 **** Attach: Add support for creating symbolic links
 
      =org-attach-method= now supports a new method =lns=, allowing to
      attach symbolic links.
 
 **** Archive: you can now archive to a datetree
 
 **** New option [[doc::org-inlinetask-show-first-star][org-inlinetask-show-first-star]]
 
      =Non-nil= means display the first star of an inline task as
      additional marker.  When =nil=, the first star is not shown.
 
 **** New option [[doc::org-latex-preview-ltxpng-directory][org-latex-preview-ltxpng-directory]]
 
      This lets you define the path for the =ltxpng/= directory.
 
 **** You can now use imagemagick instead of dvipng to preview LaTeX fragments
 **** You can now turn off [[doc::orgstruct++-mode][orgstruct++-mode]] safely
 **** =C-u C-c C-c= on list items to add check boxes
 
      =C-u C-c C-c= will add an empty check box on a list item.
 
      When hit from the top of the list, it will add check boxes for
      all top level list items.
 
 **** =org-list-ending-method= and =org-list-end-regexp= are now obsolete
 
      Fall back on using =org-list-end-re= only, which see.
 
 **** org-feed.el now expands =%(sexp)= templates
 **** New option [[doc::org-protocol-data-separator][org-protocol-data-separator]]
 
 **** New option [[doc::org-ditaa-jar-option][org-ditaa-jar-option]] to specify the ditaa jar file
 
 **** New possible value for [[doc::org-loop-over-headlines-in-active-region][org-loop-over-headlines-in-active-region]]
 
      When [[doc::org-loop-over-headlines-in-active-region][org-loop-over-headlines-in-active-region]] is set to
      =start-level=, the command will loop over the active region but
      will only act upon entries that are of the same level than the
      first headline in the region.
 
 **** New option [[doc::org-habit-show-all-today][org-habit-show-all-today]]
 
      When set to =t=, show all (even unscheduled) habits on today's
      agenda.
 
 ** Important bug fixes
 
 *** M-TAB on options keywords perform completion correctly again
 
     If you hit =M-TAB= on keywords like =#+TITLE=, Org will try to
     perform completion with meaningful values.
 
 *** Add licenses to javascript embedded and external code snippets
 
     Embedded javascript code produced when exporting an Org file to
     HTML is now licensed under GPLv3 (or later), and the copyright is
     owned by the Free Software Foundation, Inc.
 
     The javascript code for embedding MathJax in the browser mentions
     the MathJax copyright and the Apache 2.0 license.
 
     The javascript code for embedding =org-injo.js= in the browser
     mentions the copyright of Sebastian Rose and the GPLv3 (or later)
     license.
 
     =org-export-html-scripts= is now a variable, so that you can adapt
     the code and the license to your needs.
 
     See https://www.gnu.org/philosophy/javascript-trap.html for
     explanations on why these changes were necessary.
 
 * Version 7.8.11
 
 ** Incompatible changes
 
 *** Emacs 21 support has been dropped
 
     Do not use Org mode 7.xx with Emacs 21, use [[https://orgmode.org/org-6.36c.zip][version 6.36c]] instead.
 
 *** XEmacs support requires the XEmacs development version
 
     To use Org mode 7.xx with XEmacs, you need to run the developer
     version of XEmacs.  We were about to drop XEmacs support entirely,
     but Michael Sperber stepped in and made changes to XEmacs that
     made it easier to keep the support.  Thanks to Michael for this
     last-minute save.
 
 *** New keys for TODO sparse trees
 
     The key =C-c C-v= is now reserved for Org Babel action.  TODO
     sparse trees can still be made with =C-c / t= (all not-done
     states) and =C-c / T= (specific states).
 
 *** The Agenda =org-agenda-ndays= is now obsolete
 
     The variable =org-agenda-ndays= is obsolete - please use
     =org-agenda-span= instead.
 
     Thanks to Julien Danjou for this.
 
 *** Changes to the intended use of =org-export-latex-classes=
 
     So far this variable has been used to specify the complete header
     of the LaTeX document, including all the =\usepackage= calls
     necessary for the document.  This setup makes it difficult to
     maintain the list of packages that Org itself would like to call,
     for example for the special symbol support it needs.
 
     First of all, you can *opt out of this change* in the following
     way: You can say: /I want to have full control over headers, and I
     will take responsibility to include the packages Org needs/.  If
     that is what you want, add this to your configuration and skip the
     rest of this section (except maybe for the description of the
     =[EXTRA]= place holder):
 
     #+begin_src emacs-lisp
    (setq org-export-latex-default-packages-alist nil
          org-export-latex-packages-alist nil)
     #+end_src
 
     /Continue to read here if you want to go along with the modified
     setup./
 
     There are now two variables that should be used to list the LaTeX
     packages that need to be included in all classes.  The header
     definition in =org-export-latex-classes= should then not contain
     the corresponding =\usepackage= calls (see below).
 
     The two new variables are:
 
     1. =org-export-latex-default-packages-alist= :: This is the
          variable where Org-mode itself puts the packages it needs.
          Normally you should not change this variable.  The only
          reason to change it anyway is when one of these packages
          causes a conflict with another package you want to use.  Then
          you can remove that packages and hope that you are not using
          Org-mode functionality that needs it.
 
     2. =org-export-latex-packages-alist= :: This is the variable where
          you can put the packages that you'd like to use across all
          classes.
 
     The sequence how these customizations will show up in the LaTeX
     document are:
 
     1. Header from =org-export-latex-classes=
     2. =org-export-latex-default-packages-alist=
     3. =org-export-latex-packages-alist=
     4. Buffer-specific things set with =#+LaTeX_HEADER:=
 
     If you want more control about which segment is placed where, or
     if you want, for a specific class, have full control over the
     header and exclude some of the automatic building blocks, you can
     put the following macro-like place holders into the header:
 
     #+begin_example
     [DEFAULT-PACKAGES]      \usepackage statements for default packages
     [NO-DEFAULT-PACKAGES]   do not include any of the default packages
     [PACKAGES]              \usepackage statements for packages
     [NO-PACKAGES]           do not include the packages
     [EXTRA]                 the stuff from #+LaTeX_HEADER
     [NO-EXTRA]              do not include #+LaTeX_HEADER stuff
     #+end_example
 
     If you have currently customized =org-export-latex-classes=, you
     should revise that customization and remove any package calls that
     are covered by =org-export-latex-default-packages-alist=.  This
     applies to the following packages:
 
     - inputenc
     - fontenc
     - fixltx2e
     - graphicx
     - longtable
     - float
     - wrapfig
     - soul
     - t1enc
     - textcomp
     - marvosym
     - wasysym
     - latexsym
     - amssymb
     - hyperref
 
     If one of these packages creates a conflict with another package
     you are using, you can remove it from
     =org-export-latex-default-packages-alist=.  But then you risk that
     some of the advertised export features of Org will not work
     properly.
 
     You can also consider moving packages that you use in all classes
     to =org-export-latex-packages-alist=.  If necessary, put the place
     holders so that the packages get loaded in the right sequence.  As
     said above, for backward compatibility, if you omit the place
     holders, all the variables will dump their content at the end of
     the header.
 
 *** The constant =org-html-entities= is obsolete
 
     Its content is now part of the new constant =org-entities=, which
     is defined in the file org-entities.el.  =org-html-entities= was
     an internal variable, but it is possible that some users did write
     code using it.
 
 *** =org-bbdb-anniversary-format-alist= has changed
 
     Please check the docstring and update your settings accordingly.
 
 *** Deleted =org-mode-p=
 
     This function has been deleted: please update your code.
 
 ** Important new features
 
 *** New Org to ODT exporter
 
     Jambunathan's Org to ODT exporter is now part of Org.
 
     To use it, it `C-c C-e o' in an Org file.  See the documentation
     for more information on how to customize it.
 
 *** org-capture.el is now the default capture system
 
     This replaces the earlier system org-remember.  The manual only
     describes org-capture, but for people who prefer to continue to
     use org-remember, we keep a static copy of the former manual
     section [[https://orgmode.org/org-remember.pdf][chapter about remember]].
 
     The new system has a technically cleaner implementation and more
     possibilities for capturing different types of data.  See
     [[msg:C46F10DC-DE51-43D4-AFFE-F71E440D1E1F@gmail.com][Carsten's announcement]] for more details.
 
     To switch over to the new system:
 
     1. Run
 
      : M-x org-capture-import-remember-templates RET
 
        to get a translated version of your remember templates into the
        new variable =org-capture-templates=.  This will "mostly" work,
        but maybe not for all cases.  At least it will give you a good
        place to modify your templates.  After running this command,
        enter the customize buffer for this variable with
 
      : M-x customize-variable RET org-capture-templates RET
 
        and convince yourself that everything is OK.  Then save the
        customization.
 
     2. Bind the command =org-capture= to a key, similar to what you did
        with org-remember:
 
      : (define-key global-map "\C-cc" 'org-capture)
 
        If your fingers prefer =C-c r=, you can also use this key once
        you have decided to move over completely to the new
        implementation.  During a test time, there is nothing wrong
        with using both system in parallel.
 
 ** New libraries
 
 *** New Org libraries
 **** org-eshell.el (Konrad Hinsen)
 
      Implement links to eshell buffers.
 
 **** org-special-blocks (Carsten Dominik)
 
      This package generalizes the #+begin_foo and #+end_foo tokens.
 
      To use, put the following in your init file:
 
      #+BEGIN_EXAMPLE
 (require 'org-special-blocks)
 #+END_EXAMPLE
 
      The tokens #+begin_center, #+begin_verse, etc. existed
      previously.  This package generalizes them (at least for the
      LaTeX and html exporters).  When a #+begin_foo token is
      encountered by the LaTeX exporter, it is expanded
      into \begin{foo}.  The text inside the environment is not
      protected, as text inside environments generally is.
      When #+begin_foo is encountered by the html exporter, a div with
      class foo is inserted into the HTML file.  It is up to the user
      to add this class to his or her stylesheet if this div is to mean
      anything.
 
 **** org-taskjuggler.el (Christian Egli)
 
      Christian Egli's /org-taskjuggler.el/ module is now part of Org.
      He also wrote a [[https://orgmode.org/worg/org-tutorials/org-taskjuggler.php][tutorial]] for it.
 
 **** org-ctags.el (Paul Sexton)
 
      Targets like =<<my target>>= can now be found by Emacs' etag
      functionality, and Org-mode links can be used to link to
      etags, also in non-Org-mode files.  For details, see the file
      /org-ctags.el/.
 
      This feature uses a new hook =org-open-link-functions= which will
      call function to do something special with text links.
 
      Thanks to Paul Sexton for this contribution.
 
 **** org-docview.el (Jan Böcker)
 
      This new module allows links to various file types using docview, where
      Emacs displays images of document pages.  Docview link types can point
      to a specific page in a document, for example to page 131 of the
      Org-mode manual:
 
      : [[docview:~/.elisp/org/doc/org.pdf::131][Org-Mode Manual]]
 
      Thanks to Jan Böcker for this contribution.
 
 *** New Babel libraries
 
 - ob-picolisp.el (Thorsten Jolitz)
 - ob-fortran.el (Sergey Litvinov)
 - ob-shen.el (Eric Schulte)
 - ob-maxima.el (Eric S Fraga)
 - ob-java.el (Eric Schulte)
 - ob-lilypond.el (Martyn Jago)
 - ob-awk.el (Eric Schulte)
 
 ** Other new features and various enhancements
 
 *** Hyperlinks
 
 **** Org-Bibtex -- major improvements
 
      Provides support for managing bibtex bibliographical references
      data in headline properties.  Each headline corresponds to a
      single reference and the relevant bibliographic meta-data is
      stored in headline properties, leaving the body of the headline
      free to hold notes and comments.  Org-bibtex is aware of all
      standard bibtex reference types and fields.
 
      The key new functions are
 
      - org-bibtex-check :: queries the user to flesh out all required
           (and with prefix argument optional) bibtex fields available
           for the specific reference =type= of the current headline.
 
      - org-bibtex-create :: Create a new entry at the given level,
           using org-bibtex-check to flesh out the relevant fields.
 
      - org-bibtex-yank :: Yank a bibtex entry on the kill ring as a
           formatted Org-mode headline into the current buffer
 
      - org-bibtex-export-to-kill-ring :: Export the current headline
           to the kill ring as a formatted bibtex entry.
 
 **** org-gnus.el now allows link creation from messages
 
      You can now create links from messages.  This is particularly
      useful when the user wants to stored messages that he sends, for
      later check.  Thanks to Ulf Stegemann for the patch.
 
 **** Modified link escaping
 
      David Maus worked on `org-link-escape'.  See [[msg:87k4gysacq.wl%dmaus@ictsoc.de][his message]]:
 
      : Percent escaping is used in Org mode to escape certain characters
      : in links that would either break the parser (e.g. square brackets
      : in link target or description) or are not allowed to appear in
      : a particular link type (e.g. non-ascii characters in a http:
      : link).
      :
      : With this change in place Org will apply percent escaping and
      : unescaping more consistently especially for non-ascii characters.
      : Additionally some of the outstanding bugs or glitches concerning
      : percent escaped links are solved.
 
      Thanks a lot to David for this work.
 
 **** Make =org-store-link= point to directory in a dired buffer
 
      When, in a dired buffer, the cursor is not in a line listing a
      file, `org-store-link' will store a link to the directory.
 
      Patch by Stephen Eglen.
 
 **** Allow regexps in =org-file-apps= to capture link parameters
 
      The way extension regexps in =org-file-apps= are handled has
      changed.  Instead of matching against the file name, the regexps
      are now matched against the whole link, and you can use grouping
      to extract link parameters which you can then use in a command
      string to be executed.
 
      For example, to allow linking to PDF files using the syntax
      =file:/doc.pdf::<page number>=, you can add the following entry
      to org-file-apps:
 
      #+begin_example
      Extension: \.pdf::\([0-9]+\)\'
      Command:   evince "%s" -p %1
      #+end_example
 
      Thanks to Jan Böcker for a patch to this effect.
 
 *** Dates and time
 
 **** Allow relative time when scheduling/adding a deadline
 
      You can now use relative duration strings like "-2d" or "++3w"
      when calling =org-schedule= or =org-deadline=: it will schedule
      (or set the deadline for) the item respectively two days before
      today and three weeks after the current timestamp, if any.
 
      You can use this programmatically: =(org-schedule nil "+2d")=
      will work on the current entry.
 
      You can also use this while (bulk-)rescheduling and
      (bulk-)resetting the deadline of (several) items from the agenda.
 
      Thanks to Memnon Anon for a heads up about this!
 
 **** American-style dates are now understood by =org-read-date=
 
      So when you are prompted for a date, you can now answer like this
 
      #+begin_example
      2/5/3         --> 2003-02-05
      2/5           --> <CURRENT-YEAR>-02-05
      #+end_example
 
 *** Agenda
 
 **** =org-agenda-custom-commands= has a default value
 
      This option used to be `nil' by default.  This now has a default
      value, displaying an agenda and all TODOs.  See the docstring for
      details.  Thanks to Carsten for this.
 
 **** Improved filtering through =org-agenda-to-appt=
 
      The new function allows the user to refine the scope of entries
      to pass to =org-agenda-get-day-entries= and allows to filter out
      entries using a function.
 
      Thanks to Peter Münster for raising a related issue and to
      Tassilo Horn for this idea.  Also thanks to Peter Münster for
      [[git:68ffb7a7][fixing a small bug]] in the final implementation.
 
 **** Allow ap/pm times in agenda time grid
 
      Times in the agenda can now be displayed in am/pm format.  See
      the new variable =org-agenda-timegrid-use-ampm=.  Thanks to
      C. A. Webber for a patch to this effect.
 
 **** Agenda: Added a bulk "scattering" command
 
      =B S= in the agenda buffer will cause tasks to be rescheduled a
      random number of days into the future, with 7 as the default.
      This is useful if you've got a ton of tasks scheduled for today,
      you realize you'll never deal with them all, and you just want
      them to be distributed across the next N days.  When called with
      a prefix arg, rescheduling will avoid weekend days.
 
      Thanks to John Wiegley for this.
 
 *** Exporting
 
 **** Simplification of org-export-html-preamble/postamble
 
      When set to `t', export the preamble/postamble as usual, honoring
      the =org-export-email/author/creator-info= variables.
 
      When set to a formatting string, insert this string.  See the
      docstring of these variable for details about available
      %-sequences.
 
      You can set =:html-preamble= in publishing project in the same
      way: `t' means to honor =:email/creator/author-info=, and a
      formatting string will insert a string.
 
 **** New exporters to Latin-1 and UTF-8
 
      While Ulf Stegemann was going through the entities list to
      improve the LaTeX export, he had the great idea to provide
      representations for many of the entities in Latin-1, and for all
      of them in UTF-8.  This means that we can now export files rich
      in special symbols to Latin-1 and to UTF-8 files.  These new
      exporters can be reached with the commands =C-c C-e n= and =C-c
      C-e u=, respectively.
 
      When there is no representation for a given symbol in the
      targeted coding system, you can choose to keep the TeX-macro-like
      representation, or to get an "explanatory" representation.  For
      example, =\simeq= could be represented as "[approx. equal to]".
      Please use the variable =org-entities-ascii-explanatory= to state
      your preference.
 
 **** HTML export: Add class to outline containers using property
 
      The =HTML_CONTAINER_CLASS= property can now be used to add a
      class name to the outline container of a node in HTML export.
 
 **** Throw an error when creating an image from a LaTeX snippet fails
 
      This behavior can be configured with the new option variable
      =org-format-latex-signal-error=.
 
 **** Support for creating BEAMER presentations from Org-mode documents
 
      Org-mode documents or subtrees can now be converted directly in
      to BEAMER presentation.  Turning a tree into a simple
      presentations is straight forward, and there is also quite some
      support to make richer presentations as well.  See the [[https://orgmode.org/manual/Beamer-class-export.html#Beamer-class-export][BEAMER
      section]] in the manual for more details.
 
      Thanks to everyone who has contributed to the discussion about
      BEAMER support and how it should work.  This was a great example
      for how this community can achieve a much better result than any
      individual could.
 
 *** Refiling
 
 **** Refile targets can now be cached
 
      You can turn on caching of refile targets by setting the variable
      =org-refile-use-cache=.  This should speed up refiling if you
      have many eligible targets in many files.  If you need to update
      the cache because Org misses a newly created entry or still
      offers a deleted one, press =C-0 C-c C-w=.
 
 **** New logging support for refiling
 
      Whenever you refile an item, a time stamp and even a note can be
      added to this entry.  For details, see the new option
      =org-log-refile=.
 
      Thanks to Charles Cave for this idea.
 
 *** Completion
 
 **** In-buffer completion is now done using John Wiegley's pcomplete.el
 
      Thanks to John Wiegley for much of this code.
 
 *** Tables
 
 **** New command =org-table-transpose-table-at-point=
 
      See the docstring.  This hack from Juan Pechiar is now part of
      Org's core.  Thanks to Juan!
 
 **** Display field's coordinates when editing it with =C-c `=
 
      When editing a field with =C-c `=, the field's coordinate will
      the displayed in the buffer.
 
      Thanks to Michael Brand for a patch to this effect.
 
 **** Spreadsheet computation of durations and time values
 
      If you want to compute time values use the =T= flag, either in
      Calc formulas or Elisp formulas:
 
      | Task 1 | Task 2 |   Total |
      |--------+--------+---------|
      |  35:00 |  35:00 | 1:10:00 |
      #+TBLFM: @2$3=$1+$2;T
 
      Values must be of the form =[HH:]MM:SS=, where hours are
      optional.
 
      Thanks to Martin Halder, Eric Schulte and Carsten for code and
      feedback on this.
 
 **** Implement formulas applying to field ranges
 
      Carsten implemented this field-ranges formulas.
 
      : A frequently requested feature for tables has been to be able to define
      : row formulas in a way similar to column formulas.  The patch below allows
      : things like
      :
      : @3=
      : @2$2..@5$7=
      : @I$2..@II$4=
      :
      : as the left hand side for table formulas in order to write a formula that
      : is valid for an entire column or for a rectangular section in a
      : table.
 
      Thanks a lot to Carsten for this.
 
 **** Sending radio tables from org buffers is now allowed
 
      Org radio tables can no also be sent inside Org buffers.  Also,
      there is a new hook which get called after a table has been sent.
 
      Thanks to Seweryn Kokot.
 
 *** Lists
 
 **** Improved handling of lists
 
      Nicolas Goaziou extended and improved the way Org handles lists.
 
      1. Indentation of text determines again end of items in
         lists. So, some text less indented than the previous item
         doesn't close the whole list anymore, only all items more
         indented than it.
 
      2. Alphabetical bullets are implemented, through the use of the
         variable `org-alphabetical-lists'. This also adds alphabetical
         counters like [@c] or [@W].
 
      3. Lists can now safely contain drawers, inline tasks, or various
         blocks, themselves containing lists. Two variables are
         controlling this: `org-list-forbidden-blocks', and
         `org-list-export-context'.
 
      4. Improve `newline-and-indent' (C-j): used in an item, it will
         keep text from moving at column 0. This allows to split text
         and make paragraphs and still not break the list.
 
      5. Improve `org-toggle-item' (C-c -): used on a region with
         standard text, it will change the region into one item. With a
         prefix argument, it will fallback to the previous behavior and
         make every line in region an item. It permits to easily
         integrate paragraphs inside a list.
 
      6. `fill-paragraph' (M-q) now understands lists. It can freely be
         used inside items, or on text just after a list, even with no
         blank line around, without breaking list structure.
 
      Thanks a lot to Nicolas for all this!
 
 *** Inline display of linked images
 
     Images can now be displayed inline.  The key C-c C-x C-v does
     toggle the display of such images.  Note that only image links
     that have no description part will be inlined.
 
 *** Implement offsets for ordered lists
 
     If you want to start an ordered plain list with a number different
     from 1, you can now do it like this:
 
     : 1. [@start:12] will star a lit a number 12
 
 *** Babel: code block body expansion for table and preview
 
     In org-babel, code is "expanded" prior to evaluation. I.e. the
     code that is actually evaluated comprises the code block contents,
     augmented with the extra code which assigns the referenced data to
     variables. It is now possible to preview expanded contents, and
     also to expand code during tangling. This expansion takes
     into account all header arguments, and variables.
 
     A new keybinding `C-c M-b p' bound to `org-babel-expand-src-block'
     can be used from inside of a source code block to preview its
     expanded contents (which can be very useful for debugging).
     tangling
 
     The expanded body can now be tangled, this includes variable
     values which may be the results of other source-code blocks, or
     stored in headline properties or tables. One possible use for this
     is to allow those using org-babel for their emacs initialization
     to store values (e.g. usernames, passwords, etc...) in headline
     properties or in tables.
 
     Org-babel now supports three new header arguments, and new default
     behavior for handling horizontal lines in tables (hlines), column
     names, and rownames across all languages.
 
 *** Editing Convenience and Appearance
 
 **** New command =org-copy-visible= (=C-c C-x v=)
 
      This command will copy the visible text in the region into the
      kill ring.  Thanks to Florian Beck for this function and to
      Carsten for adding it to org.el and documenting it!
 
 **** Make it possible to protect hidden subtrees from being killed by =C-k=
 
      See the new variable =org-ctrl-k-protect-subtree=.  This was a
      request by Scott Otterson.
 
 **** Implement pretty display of entities, sub-, and superscripts.
 
      The command =C-c C-x \= toggles the display of Org's special
      entities like =\alpha= as pretty unicode characters.  Also, sub
      and superscripts are displayed in a pretty way (raised/lower
      display, in a smaller font).  If you want to exclude sub- and
      superscripts, see the variable
      =org-pretty-entities-include-sub-superscripts=.
 
      Thanks to Eric Schulte and Ulf Stegeman for making this possible.
 
 **** New faces for title, date, author and email address lines
 
      The keywords in these lines are now dimmed out, and the title is
      displayed in a larger font, and a special font is also used for
      author, date, and email information.  This is implemented by the
      following new faces:
 
      =org-document-title=
      =org-document-info=
      =org-document-info-keyword=
 
      In addition, the variable =org-hidden-keywords= can be used to
      make the corresponding keywords disappear.
 
      Thanks to Dan Davison for this feature.
 
 **** Simpler way to specify faces for tags and todo keywords
 
      The variables =org-todo-keyword-faces=, =org-tag-faces=, and
      =org-priority-faces= now accept simple color names as
      specifications.  The colors will be used as either foreground or
      background color for the corresponding keyword.  See also the
      variable =org-faces-easy-properties=, which governs which face
      property is affected by this setting.
 
      This is really a great simplification for setting keyword faces.
      The change is based on an idea and patch by Ryan Thompson.
 
 **** <N> in tables now means fixed width, not maximum width
 
      Requested by Michael Brand.
 
 **** Better level cycling function
 
      =TAB= in an empty headline cycles the level of that headline
      through likely states.  Ryan Thompson implemented an improved
      version of this function, which does not depend upon when exactly
      this command is used.  Thanks to Ryan for this improvement.
 
 **** Adaptive filling
 
      For paragraph text, =org-adaptive-fill-function= did not handle
      the base case of regular text which needed to be filled.  This is
      now fixed.  Among other things, it allows email-style ">"
      comments to be filled correctly.
 
      Thanks to Dan Hackney for this patch.
 
 **** `org-reveal' (=C-c C-r=) also decrypts encrypted entries (org-crypt.el)
 
      Thanks to Richard Riley for triggering this change.
 
 **** Better automatic letter selection for TODO keywords
 
      When all first letters of keywords have been used, Org now
      assigns more meaningful characters based on the keywords.
 
      Thanks to Mikael Fornius for this patch.
 
 *** Clocking
 
 **** Clock: Allow synchronous update of timestamps in CLOCK log
 
      Using =S-M-<up/down>= on CLOCK log timestamps will
      increase/decrease the two timestamps on this line so that
      duration will keep the same.  Note that duration can still be
      slightly modified in case a timestamp needs some rounding.
 
      Thanks to Rainer Stengele for this idea.
 
 **** Localized clock tables
 
      Clock tables now support a new =:lang= parameter, allowing
      the user to customize the localization of the table headers.  See
      the variable =org-clock-clocktable-language-setup= which controls
      available translated strings.
 
 **** Show clock overruns in mode line
 
      When clocking an item with a planned effort, overrunning the
      planned time is now made visible in the mode line, for example
      using the new face =org-mode-line-clock-overrun=, or by adding an
      extra string given by =org-task-overrun-text=.
 
      Thanks to Richard Riley for a patch to this effect.
 
 **** Clock reports can now include the running, incomplete clock
 
      If you have a clock running, and the entry being clocked falls
      into the scope when creating a clock table, the time so far spent
      can be added to the total.  This behavior depends on the setting
      of =org-clock-report-include-clocking-task=.  The default is
      =nil=.
 
      Thanks to Bernt Hansen for this useful addition.
 
 *** Misc
 
 **** Improvements with inline tasks and indentation
 
      There is now a configurable way on how to export inline tasks.
      See the new variable =org-inlinetask-export-templates=.
 
      Thanks to Nicolas Goaziou for coding these changes.
 
 **** A property value of =nil= now means to unset a property
 
      This can be useful in particular with property inheritance, if
      some upper level has the property, and some grandchild of it
      would like to have the default settings (i.e. not overruled by a
      property) back.
 
      Thanks to Robert Goldman and Bernt Hansen for suggesting this
      change.
 
 **** New helper functions in org-table.el
 
      There are new functions to access and write to a specific table field.
      This is for hackers, and maybe for the org-babel people.
 
      #+begin_example
      org-table-get
      org-table-put
      org-table-current-line
      org-table-goto-line
      #+end_example
 
 **** Archiving: Allow to reverse order in target node
 
      The new option =org-archive-reversed-order= allows to have
      archived entries inserted in a last-on-top fashion in the target
      node.
 
      This was requested by Tom.
 
 **** Org-reveal: Double prefix arg shows the entire subtree of the parent
 
      This can help to get out of an inconsistent state produced for
      example by viewing from the agenda.
 
      This was a request by Matt Lundin.
 
 * License
 
   This file is part of GNU Emacs.
 
   GNU Emacs is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
 
   GNU Emacs is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.