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* configure.ac (C_SWITCH_MATCHINE): On 32-bit x86 with GCC 4+, append -mfpmath=sse (if SSE2 is known to work) or -fno-tree-sra (otherwise) to work around GCC bug 58416. * etc/NEWS: Mention this.
181 lines
6.1 KiB
Plaintext
181 lines
6.1 KiB
Plaintext
GNU Emacs NEWS -- history of user-visible changes.
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Copyright (C) 2022-2024 Free Software Foundation, Inc.
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See the end of the file for license conditions.
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Please send Emacs bug reports to 'bug-gnu-emacs@gnu.org'.
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If possible, use 'M-x report-emacs-bug'.
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This file is about changes in Emacs version 31.
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See file HISTORY for a list of GNU Emacs versions and release dates.
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See files NEWS.30, NEWS.29, ..., NEWS.18, and NEWS.1-17 for changes
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in older Emacs versions.
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You can narrow news to a specific version by calling 'view-emacs-news'
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with a prefix argument or by typing 'C-u C-h C-n'.
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Temporary note:
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+++ indicates that all relevant manuals in doc/ have been updated.
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--- means no change in the manuals is needed.
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When you add a new item, use the appropriate mark if you are sure it
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applies, and please also update docstrings as needed.
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* Installation Changes in Emacs 31.1
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** When using GCC 4 or later to build Emacs on 32-bit x86 systems,
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'configure' now defaults to using the GCC options -mfpmath=sse (if the
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host system supports SSE2) or -fno-tree-sra (if not). These GCC options
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work around GCC bug 58416, which can cause Emacs to behave incorrectly
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in rare cases.
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* Startup Changes in Emacs 31.1
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* Changes in Emacs 31.1
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---
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** "find-func.el" commands now have history enabled.
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The 'find-function', 'find-library', 'find-face-definition', and
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'find-variable' commands now allow retrieving previous input using the
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usual minibuffer history commands. Each command has a separate history.
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* Editing Changes in Emacs 31.1
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* Changes in Specialized Modes and Packages in Emacs 31.1
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** Whitespace
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---
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*** 'whitespace-cleanup' now adds missing newline at end of file.
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If 'whitespace-style' includes 'missing-newline-at-eof (which is the
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default), the 'whitespace-cleanup' function will now add the newline.
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** Eshell
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---
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*** New option 'eshell-command-async-buffer'.
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This option lets you tell 'eshell-command' how to respond if its output
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buffer is already in use by another invocation of 'eshell-command', much
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like 'async-shell-command-buffer' does for 'shell-command'. By default,
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this will prompt for confirmation before creating a new buffer when
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necessary. To restore the previous behavior, set this option to
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'confirm-kill-process'.
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+++
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*** 'eshell-execute-file' is now an interactive command.
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Interactively, this now prompts for a script file to execute. With the
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prefix argument, it will also insert any output into the current buffer
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at point.
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+++
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*** 'eshell-command' and 'eshell-execute-file' can now set where stderr goes.
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These functions now take an optional ERROR-TARGET argument to control
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where to send the standard error output. See the "(eshell) Entry
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Points" node in the Eshell manual for more details.
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+++
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*** Eshell's built-in "wait" command now accepts a timeout.
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By passing "-t" or "--timeout", you can specify a maximum time to wait
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for the processes to exit. Additionally, you can now wait for external
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processes by passing their PIDs.
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** SHR
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+++
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*** SHR now slices large images into rows.
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Sliced images allow for more intuitive scrolling up/down by letting you
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scroll past each slice, instead of jumping past the entire image.
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Previously, SHR sliced images when zoomed to their original size, no
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matter how large or small that was). Now, SHR slices any images taller
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than 'shr-sliced-image-height'. For more information, see the "(eww)
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Advanced" node in the EWW manual.
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---
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*** You can now customize the image zoom levels to cycle through.
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By customizing 'shr-image-zoom-levels', you can change the list of zoom
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levels that SHR cycles through when calling 'shr-zoom-image'.
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** Emacs Lisp mode
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---
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*** Checkdoc no longer warns about missing footer lines in some cases.
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Emacs Lisp libraries have traditionally ended with a footer line
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(sometimes referred to as "terminating comment"). Their purpose was to
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easily detect files that had been truncated in transit on ancient and
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less reliable connections:
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;; some-cool-package.el ends here
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'checkdoc' will no longer warn if that line is missing for packages that
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explicitly only support Emacs 30.1 or later, as specified in the
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"Package-Requires" header. The reason for keeping the warning for
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packages that support earlier versions of Emacs is that package.el in
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those versions can't install packages where that line is missing.
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This change affects both 'M-x checkdoc' and the corresponding flymake
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backend.
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---
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*** Checkdoc will now flag incorrect formatting in warnings.
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This affects calls to 'warn', 'lwarn', 'display-warning', and
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'message-box'.
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---
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*** The default of 'checkdoc-verb-check-experimental-flag' is now nil.
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In most cases, having it enabled leads to a large amount of false
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positives.
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* New Modes and Packages in Emacs 31.1
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* Incompatible Lisp Changes in Emacs 31.1
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* Lisp Changes in Emacs 31.1
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+++
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*** Support interactive D-Bus authorization.
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A new ':authorizable t' parameter has been added to 'dbus-call-method'
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and 'dbus-call-method-asynchronously' to allow the user to interactively
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authorize the invoked D-Bus method (e.g., via polkit).
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* Changes in Emacs 31.1 on Non-Free Operating Systems
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---
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** Process execution has been optimized on Android.
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The run-time performance of subprocesses on recent Android releases
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where a userspace executable loader is required has been optimized on
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systems featuring Linux 3.5.0 and above.
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----------------------------------------------------------------------
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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Local variables:
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coding: utf-8
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mode: outline
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mode: emacs-news
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paragraph-separate: "[ ]"
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end:
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