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[GNU ELPA] Org version 9.6

From: ELPA update
Subject: [GNU ELPA] Org version 9.6
Date: Tue, 29 Nov 2022 05:06:09 -0500

Version 9.6 of package Org has just been released in GNU ELPA.
You can now find it in M-x list-packages RET.

Org describes itself as:

  Outline-based notes management and organizer

More at

## Summary:

  Table of Contents

  1. Install Org
  2. Join the GNU Project
  3. License

  This is a distribution of Org Mode, a major mode for keeping notes,
  authoring documents, computational notebooks, literate programming,
  maintaining to-do lists, planning projects, and more — in a fast and
  effective plain text system.

  Check the [Org Mode website] for more.

  [Org Mode website] <>

  1 Install Org

    Org is part of GNU Emacs: you probably don't need to install it.

    To install a more recent version, please do it from [GNU ELPA] by
    running this command: `M-x package-install RET org RET'

  [GNU ELPA] <>

  2 Join the GNU Project

## Recent NEWS:

ORG NEWS -- history of user-visible changes.   -*- mode: org; coding: utf-8 -*-

#+STARTUP: overview

#+LINK: doc
#+LINK: msg
#+LINK: git

Copyright (C) 2012-2022 Free Software Foundation, Inc.
See the end of the file for license conditions.

Please send Org bug reports to

* Version 9.7 (not released yet)
* 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 for more details.

*** Element cache is enabled by default and work 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

*** 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 optimised 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)

Even more performance optimisation can be enabled by customising
=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 behaviour.  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 behaviour add the following core to your Emacs

#+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)

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

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