\f
* Installation Changes in Emacs 26.2
----
** Building Emacs with the '--with-xwidgets' option now requires WebKit2.
To build Emacs with xwidgets support, you will need to install the
webkit2gtk-4.0 package; version 2.12 or later is required.
(This change was actually made in Emacs 26.1, but was not called out
in its NEWS.)
-+++
** Installing Emacs now installs the emacs-module.h file.
The emacs-module.h file is now installed in the system-wide include
directory as part of the Emacs installation. This allows to build
\f
* Changes in Emacs 26.2
----
** Emacs is now compliant with the latest version 11.0 of the Unicode Standard.
----
** New variable 'xft-ignore-color-fonts'.
Default t means don't try to load color fonts when using Xft, as they
often cause crashes. Set it to nil if you really need those fonts.
** Dired
-+++
*** The 'Z' command on a directory name compresses all of its files.
It produces a compressed '.tar.gz' archive with all the files in the
directory and all of its subdirectories. For symmetry, 'Z' on a
** Ibuffer
----
*** New toggle 'ibuffer-do-toggle-lock', bound to 'L'.
** Imenu
----
*** The value for 'imenu-auto-rescan-maxout' has been increased to 600000.
** Gnus
----
*** Mailutils movemail will now be used if found at runtime.
The default value of 'mail-source-movemail-program' is now "movemail".
This ensures that the movemail program from GNU Mailutils will be used
** Shadowfile
----
*** shadowfile.el has been rewritten to support Tramp file names.
** Shell mode
----
*** Shell mode buffers now have 'scroll-conservatively' set to 101.
This is so as to better emulate the scrolling behavior of a text
terminal when new output is added to the screen buffer. To get back
** VC
----
*** VC support for Mercurial was improved.
Emacs now avoids invoking 'hg' as much as possible, for faster operation.
(This and the following changes were actually made in Emacs 26.1, but
were not called out in its NEWS.)
----
**** New vc-hg options.
The new option 'vc-hg-parse-hg-data-structures' controls whether vc-hg
will try parsing the Mercurial data structures directly instead of
whether the version shown on the mode line is that of the visited file
or of the repository working copy.
----
**** Display of Mercurial revisions in the mode line has changed.
Previously, the mode line displayed the local number (1, 2, 3, ...) of
the revision. Starting with Emacs 26.1, the default has changed, and
\f
* Incompatible Lisp Changes in Emacs 26.2
----
** shadowfile config files have changed their syntax.
Existing files "~/.emacs.d/shadows" and "~/.emacs.d/shadow_todo" must
be removed prior using the changed 'shadow-*' commands.
-+++
** 'thread-alive-p' has been renamed to 'thread-live-p'.
The old name is an alias of the new name. Future Emacs version will
obsolete it.
----
** 'while-no-input' does not return due to input from subprocesses.
Input that arrived from subprocesses while some code executed inside
the 'while-no-input' form injected an internal buffer-switch event
\f
* Lisp Changes in Emacs 26.2
-+++
** The new function 'read-answer' accepts either long or short answers
depending on the new customizable variable 'read-answer-short'.
-+++
** New function 'assoc-delete-all'.
Like 'assq-delete-all', but uses 'equal' for comparison.
----
** The function 'thing-at-point' behaves as before Emacs 26.1.
The behavior of 'thing-at-point' when called with argument 'list' has
changed in Emacs 26.1, in that it didn't consider text inside comments
and strings as a potential list. This change is now reverted, and
'thing-at-point' behaves like it did before Emacs 26.1.
----
** To cater to use cases where comments and strings are to be ignored
when looking for a list, the function 'list-at-point' now takes an
optional argument to do so.