Post by Lawrence D'OliveiroDetails in the Emacs docs on version 30.1, in “unrelease notes” form,
<https://www.gnu.org/software/emacs/manual/html_node/emacs/Antinews.html>.
I was expecting you posting some news about the release 30.1 itself.
I'll do the honors.
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4.3 What is different about Emacs 30?
Here’s a list of the most important changes in Emacs 30 as compared to
Emacs 29. The full list is too long to fit here, but can be read in the
Emacs NEWS file by typing C-h n inside Emacs.
Native compilation is now enabled by default. When Emacs is built on
a machine with ‘libgccjit’, this will improve Emacs performance in
many typical workloads.
Emacs has been ported to the Android operating system. See the file
java/INSTALL in the Emacs source distribution for details on how to
build it.
New user option trusted-contents to allow potentially dangerous
Emacs features which could execute arbitrary Lisp code. Use this
variable to list files and directories whose contents Emacs should
trust, thus allowing those potentially dangerous features when those
files are visited.
Numerous performance improvements, for example in parsing JSON,
reading data from subprocesses, handling output from Eshell and in
Shell mode, X selection requests, remote files, and so on.
Native JSON support is now always available; libjansson is no longer
used.
New major modes based on the tree-sitter library library for editing
Elixir, HEEx, HTML, Lua, and PHP.
Support for the EditorConfig standard has been added, an
editor-neutral way to provide directory local (project-wide)
settings. It is enabled via a new global minor mode
editorconfig-mode which makes Emacs obey the .editorconfig files.
Support for touchscreens has been improved. On systems that
understand them (at present X, Android, PGTK, and MS-Windows), many
touch screen gestures are now implemented and translated into mouse
or gesture events, and support for tapping tool bar buttons and
opening menus has been added.
Tool bar tweaks. The new minor mode window-tool-bar-mode provides a
per-window toolbar. Toolbars can be placed on the bottom of a frame
by setting the tool-bar-position variable on all window systems but
GNUStep and macOS.
The ‘which-key’ package from GNU ELPA is now included in
Emacs. After enabling the minor mode mode which-key-mode, if you
enter C-x and wait for one second, the minibuffer will expand with
all available key bindings that follow C-x (or as many as space
allows).
New global minor mode kill-ring-deindent-mode. When enabled, text
being saved to the kill ring will be de-indented by the column
number at its start.
New minor mode visual-wrap-prefix-mode. Unlike M-q, the indentation
only happens on display, and doesn’t change the buffer text in any
way.
Automatic regeneration of TAGS files using the new global minor mode
etags-regen-mode.
Improved warnings from the byte-code compiler to aid Lisp
developers.
Support for underline colors on TTY frames.
Source:
https://www.gnu.org/software/emacs/manual/html_node/efaq/New-in-Emacs-30.html
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