1 GNU Emacs NEWS -- history of user-visible changes.
3 Copyright (C) 2014-2015 Free Software Foundation, Inc.
4 See the end of the file for license conditions.
6 Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
7 If possible, use M-x report-emacs-bug.
9 This file is about changes in Emacs version 25.
11 See file HISTORY for a list of GNU Emacs versions and release dates.
12 See files NEWS.24, NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
13 and NEWS.1-17 for changes in older Emacs versions.
15 You can narrow news to a specific version by calling `view-emacs-news'
16 with a prefix argument or by typing C-u C-h C-n.
19 +++ indicates that all necessary documentation updates are complete.
20 (This means all relevant manuals in doc/ AND lisp doc-strings.)
21 --- means no change in the manuals is needed.
22 When you add a new item, use the appropriate mark if you are sure it applies,
23 otherwise leave it unmarked.
26 * Installation Changes in Emacs 25.1
29 ** Building Emacs now requires C99 or later.
32 ** Building Emacs now requires GNU make, version 3.81 or later.
35 ** New configure option --with-cairo.
36 This builds Emacs with Cairo drawing. As a side effect, it provides
37 support for built-in printing, when Emacs was built with GTK+.
39 ** New configure option --with-modules.
40 This enables support for loading dynamic modules; see below.
43 ** By default, Emacs no longer works on IRIX. We expect that Emacs
44 users are not affected by this, as SGI stopped supporting IRIX in
45 December 2013. If you are affected, please send a bug report. You
46 should be able to work around the problem either by porting the Emacs
47 undumping code to GCC under IRIX, or by configuring --with-wide-int,
48 or by sticking with Emacs 24.4.
51 ** The Emacs garbage collector assumes GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS.
52 The GC_MAKE_GCPROS_NOOPS stack-marking variant has been the default
53 since Emacs 24.4, and the other variants were undocumented and were
54 obstacles to maintenance and development. GC_MARK_STACK and its
55 related symbols have been removed from the C internals.
58 ** 'configure' now prefers gnustep-config when configuring GNUstep.
59 If gnustep-config is not available, the old heuristics are used.
62 ** 'configure' now prefers inotify to gfile for file notification,
63 unless gfile is explicitly requested via --with-file-notification='gfile'.
66 ** The configure option '--with-pkg-config-prog' has been removed.
67 Use './configure PKG_CONFIG=/full/name/of/pkg-config' if you need to.
70 ** The configure option '--with-mmdf' has been removed.
71 It was no longer useful, as it relied on libraries that are no longer
72 supported, and its presence led to confusion during configuration.
73 This affects only the 'movemail' utility; Emacs itself can still
74 process MMDF-format files as before.
77 ** The configure option '--enable-silent-rules' is now the default,
78 and silent rules are now quieter. To get the old behavior where
79 'make' chatters a lot, configure with '--disable-silent-rules' or
80 build with 'make V=1'.
83 ** The configure option '--with-gameuser' now allows to specify a
84 group instead of a user if its argument is prefixed by ':' (a colon).
85 This will cause the game score files in ${localstatedir}/games/emacs
86 to be owned by that group, and the helper program for updating them to
87 be installed setgid. The option now defaults to the 'games' group.
90 ** The `grep-changelog' script (and its manual page) are no longer included.
91 It has no particular connection to Emacs and has not changed in years,
92 so if you want to use it, you can always take a copy from an older Emacs.
95 ** Emacs 25 comes with a new set of icons.
96 Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png.
97 The old Emacs logo icons are available as `emacs23.png' in the same location.
100 * Startup Changes in Emacs 25.1
103 ** When Emacs is given a file as a command line argument and
104 `initial-buffer-choice' is non-nil, display both the file and
105 `initial-buffer-choice'. When Emacs is given more than one file and
106 `initial-buffer-choice' is non-nil, show `initial-buffer-choice'
107 and *Buffer List*. This makes Emacs convenient to use from the
108 command line when `initial-buffer-choice' is non-nil.
111 ** The value of ‘initial-scratch-message’ is now treated as a doc string
112 and can contain escape sequences for command keys, quotes, and the like.
115 * Changes in Emacs 25.1
118 ** Any file of the form .dir-locals*.el is now considered a dir-local
119 file, and multiple such files can be used in the same directory. See
120 the variable `dir-locals-file' for more information.
123 ** `xref-find-definitions' and `describe-function' now display
124 information about mode local overrides (defined by cedet/mode-local.el
125 `define-overloadable-function' `define-mode-local-overrides').
128 ** New `display-buffer' action function `display-buffer-use-some-frame'.
129 This displays the buffer in an existing frame other than the current
130 frame, and allows the caller to specify a frame predicate to exclude
134 ** New documentation command `describe-symbol'.
135 Works for functions, variables, faces, etc. It is bound to `C-h o' by
138 ** New user option `search-default-regexp-mode'
139 specifies the default mode for I-search.
141 ** `isearch' and `query-replace' now perform character folding in matches.
142 This is analogous to case folding, but instead of disregarding case
143 variants, it disregards wider classes of distinctions between similar
144 characters. (Case folding is a special case of character folding.)
145 This means many characters in the search string will match entire
146 groups of characters instead of just themselves.
148 For instance, the " will match all variants of double quotes (like “
149 and ”), and the letter a will match all of its accented cousins, even
150 those composed of multiple characters, as well as many other symbols
153 ** New function `character-fold-to-regexp' can be used
154 by searching commands to produce a regexp matching anything that
155 character-folds into STRING.
157 ** New command `checkdoc-package-keywords' checks if the
158 current package keywords are recognized. Set the new option
159 `checkdoc-package-keywords-flag' to non-nil to make
160 `checkdoc-current-buffer' call this function automatically.
162 ** New function `checkdoc-file' checks for style errors.
163 It's meant for use together with `compile':
164 emacs -batch --eval "(checkdoc-file \"subr.el\")"
166 ** New command `comment-line' bound to `C-x C-;'.
168 ** New function `custom-prompt-customize-unsaved-options' checks for
169 unsaved customizations and prompts user to customize (if found).
172 ** Network security (TLS/SSL certificate validity and the like) is
173 added via the new Network Security Manager (NSM) and controlled via
174 the `network-security-level' variable.
176 ** C-h l now also lists the commands that were run.
179 ** The new M-s M-w key binding uses eww to search the web for the
182 ** M-x suggests shorthands and ignores obsolete commands for completion.
183 ** x-select-enable-clipboard is renamed select-enable-clipboard.
184 x-select-enable-primary and renamed select-enable-primary.
185 Additionally they both now apply to all systems (OSX, GNUstep, Windows, you
186 name it), with the proviso that on some systems (e.g. Windows)
187 select-enable-primary is ineffective since the system doesn't
188 have the equivalent of a primary selection.
191 ** terpri gets an optional arg ENSURE to conditionally output a newline.
194 ** New macro `define-advice'.
196 ** `insert-register' now leaves point after the inserted text
197 when called interactively. A prefix argument toggles this behavior.
199 ** New var `truncate-string-ellipsis' to choose how to indicate truncation.
202 ** The new variable `term-file-aliases' replaces some files from lisp/term.
203 The function `tty-run-terminal-initialization' consults this variable
204 when deciding what terminal-specific initialization code to run.
207 ** New variable `system-configuration-features', listing some of the
208 main features that Emacs was compiled with. This is mainly intended
209 for use in Emacs bug reports.
212 ** A password is now hidden also when typed in batch mode. Another
213 hiding character but the default `.' can be used by let-binding the
214 variable `read-hide-char'.
216 ** The new functions `string-collate-lessp' and `string-collate-equalp'
217 preserve the collation order as defined by the system's locale(1)
218 environment. For the time being this is implemented for modern POSIX
219 systems and for MS-Windows, for other systems they fall back to their
220 counterparts `string-lessp' and `string-equal'.
222 *** The ls-lisp package uses `string-collate-lessp' to sort file names.
223 If you want the old, locale-independent sorting, customize the new
224 option `ls-lisp-use-string-collate' to a nil value.
226 *** The MS-Windows specific variable `w32-collate-ignore-punctuation',
227 if set to a non-nil value, causes the above 2 functions to ignore
228 symbol and punctuation characters when collating strings. This
229 emulates the behavior of modern Posix platforms when the locale's
230 codeset is "UTF-8" (as in "en_US.UTF-8"). This is needed because
231 MS-Windows doesn't support UTF-8 as codeset in its locales.
234 ** The new function `bidi-find-overridden-directionality' allows to
235 find characters whose directionality was, perhaps maliciously,
236 overridden by directional override control characters. Lisp programs
237 can use this to detect potential phishing of URLs and other links that
238 exploits bidirectional display reordering.
241 ** The new function `buffer-substring-with-bidi-context' allows to
242 copy a portion of a buffer into a different location while preserving
243 the visual appearance both of the copied text and the text at
244 destination, even when the copied text includes mixed bidirectional
245 text and directional control characters.
247 ** New variable `ns-use-fullscreen-animation' controls animation for
248 non-native NS fullscreen. The default is nil. Set to t to enable
249 animation when entering and leaving fullscreen. For native OSX fullscreen
252 ** A new text property `inhibit-read-only' can be used in read-only
253 buffers to allow certain parts of the text to be writable.
255 ** A new function `directory-files-recursively' returns all matching
256 files (recursively) under a directory.
258 ** The new function `directory-name-p' can be used to check whether a file
259 name (as returned from, for instance, `file-name-all-completions' is
260 a directory file name. It returns non-nil if the last character in
261 the name is a forward slash.
264 ** New variable `fast-but-imprecise-scrolling' inhibits
265 fontification during full screen scrolling operations, giving less
266 hesitant operation during auto-repeat of C-v, M-v at the cost of
267 possible inaccuracies in the end position.
269 ** The function `font-info' now returns more details about a font.
270 In particular, it now returns the average width of the font's
271 characters, which can be used for geometry-related calculations.
273 ** A new function `default-font-width' returns the average width of a
274 character in the current buffer's default font. If the default face
275 is remapped (see `face-remapping-alist'), the value for the remapped
276 face is returned. This function complements the existing function
277 `default-font-height'.
279 ** New functions `window-font-height' and `window-font-width' return
280 the height and average width of characters in a specified face and
281 window. If FACE is remapped (see `face-remapping-alist'), the
282 function returns the information for the remapped face.
284 ** A new function `window-max-chars-per-line' returns the maximal
285 number of characters that can be displayed on one line. If a face
286 and/or window are provided, these values are used for the
287 calculation. This function is different from `window-body-width' in
288 that it accounts for (i) continuation glyphs, (ii) the size of the
289 font, and (iii) the specified window.
291 ** New possible value for `system-type': nacl.
294 ** New variable `inhibit-message', when bound to non-nil, inhibits
295 `message' and related functions from displaying messages the Echo
296 Area. The output is still logged to the *Messages* buffer.
299 ** It is now safe for a mode that derives `tabulated-list-mode' to not
300 call `tabulated-list-init-header', in which case it will have no
304 ** `tabulated-list-print' takes a second optional argument, update,
305 which specifies an alternative printing method which is faster when
306 few or no entries have changed.
308 ** Emacs can now load shared/dynamic libraries (modules).
309 A dynamic Emacs module is a shared library that provides additional
310 functionality for use in Emacs Lisp programs, just like a package
311 written in Emacs Lisp would. The functions `load', `require',
312 `load-file', etc. were extended to load such modules, as they do with
313 Emacs Lisp packages. The new variable `module-file-suffix' holds the
314 system-dependent value of the file-name extension (`.so' on Posix
315 hosts) of the module files.
317 A module should export a C-callable function named
318 `emacs_module_init', which Emacs will call as part of the call to
319 `load' or `require' which loads the module. It should also export a
320 symbol named `plugin_is_GPL_compatible' to indicate that its code is
321 released under the GPL or compatible license; Emacs will refuse to
322 load modules that don't export such a symbol.
324 If a module needs to call Emacs functions, it should do so through the
325 API defined and documented in the header file `emacs-module.h'. Note
326 that any module that provides Lisp-callable functions will have to use
327 Emacs functions such as `fset' and `funcall', in order to register its
328 functions with the Emacs Lisp interpreter.
330 Modules can create `user-ptr' Lisp objects that embed pointers to C
331 struct's defined by the module. This is useful for keeping around
332 complex data structures created by a module, to be passed back to the
333 module's functions. User-ptr objects can also have associated
334 "finalizers" -- functions to be run when the object is GC'ed; this is
335 useful for freeing any resources allocated for the underlying data
336 structure, such as memory, open file descriptors, etc. A new
337 predicate `user-ptr-p' returns non-nil if its argument is a `usr-ptr'
340 Loadable modules in Emacs are an experimental feature, and subject to
341 change in future releases. For that reason, their support is disabled
342 by default, and must be enabled by using the `--with-modules' option
345 ** New input method: `tamil-dvorak'.
348 * Editing Changes in Emacs 25.1
350 ** Successive single-char deletions are collapsed in the undo-log just like
351 successive char insertions.
353 ** Unicode names entered via C-x 8 RET now use substring completion by default.
355 ** C-x 8 now has shorthands for these chars: ‐ ‑ ‒ – — ― ‘ ’ “ ” † ‡ • ′ ″
356 € № ← → ↔ − ≈ ≠ ≤ ≥. As before, you can type C-x 8 C-h to list shorthands.
358 ** New minor mode electric-quote-mode for quoting ‘like this’ and “like this”
359 as you type. See also the new variable ‘text-quoting-style’.
361 ** New minor mode global-eldoc-mode is enabled by default.
363 ** Emacs now supports "bracketed paste mode" when running on a terminal
364 that supports it. This facility allows Emacs to understand pasted
365 chunks of text as strings to be inserted, instead of interpreting each
366 character in the pasted text as actual user input. This results in a
367 paste experience similar to that under a window system, and significant
368 performance improvements when pasting large amounts of text.
370 ** Emacs now supports the latest version of the UBA.
371 The Emacs implementation of the Unicode Bidirectional Algorithm (UBA)
372 was updated to support all the latest additions and changes introduced
373 in Unicode Standard versions 6.3, 7.0, and the latest Unicode 8.0.
374 This includes full support for directional isolates and the
375 Bidirectional Parentheses Algorithm (BPA) specified by these Unicode
378 ** You can access `mouse-buffer-menu' (C-down-mouse-1) using C-f10.
381 ** New buffer-local `electric-pair-local-mode'.
384 * Changes in Specialized Modes and Packages in Emacs 25.1
386 ** New function `bookmark-set-no-overwrite' bound to C-x r M.
387 It raises an error if a bookmark of that name already exists,
388 unlike `bookmark-set' which silently updates an existing bookmark.
392 *** `json-pretty-print' and `json-pretty-print-buffer' now maintain
393 the ordering of object keys by default.
395 *** New commands `json-pretty-print-ordered' and
396 `json-pretty-print-buffer-ordered' pretty prints JSON objects with
397 object keys sorted alphabetically.
399 ** You can recompute the VC state of a file buffer with `M-x vc-refresh-state'
400 ** Prog mode has some support for multi-mode indentation.
401 See `prog-indentation-context' and `prog-widen'.
403 ** Prettify Symbols mode
404 *** Prettify Symbols mode supports custom composition predicates. By
405 overriding the default `prettify-symbols-compose-predicate', modes can
406 specify in which contexts a symbol map be composed to some unicode
407 character. `prettify-symbols-default-compose-p' is the default which
408 is suitable for most programming languages such as C or Lisp (but not
411 *** Symbols can be unprettified while point is inside them.
412 New variable `prettify-symbols-unprettify-at-point' configures this.
414 ** New `xterm-screen-extra-capabilities' config.
416 ** The `save-place' variable is replaced by a `save-place-mode'.
420 *** Hide message types by network or channel. `erc-hide-list' will
421 hide all messages of the specified type, where `erc-network-hide-list'
422 and `erc-channel-hide-list' will only hide the specified message types
423 for the respective specified targets.
426 *** `midnight-mode' is a proper minor mode.
427 *** clean-buffer-*-regexps can now specify buffers via predicate functions.
429 ** In xterms, killing text now also sets the CLIPBOARD/PRIMARY selection
430 in the surrounding GUI (using the OSC-52 escape sequence). This only works
431 if your xterm supports it and enables the `allowWindowOps' options (disabled
432 by default at least in Debian, for security reasons).
434 Similarly, you can yank the CLIPBOARD/PRIMARY selection (using the OSC-52
435 escape sequence) if your xterm has the feature enabled but for that you
436 additionally need to add `getSelection' to `xterm-extra-capabilities'.
438 ** xterm-mouse-mode now supports mouse-tracking (if your xterm supports it).
442 *** New "external" package status.
443 An external package is any installed package that's not built-in and
444 not from `package-user-dir', which usually means it's from an entry in
445 `package-directory-list'. They are treated much like built-in
446 packages, in that they cannot be deleted through the package menu and
447 are not considered for upgrades.
449 The effect, is that a user can manually place a specific version of a
450 package inside `package-directory-list' and the package menu will
453 *** If a package is available on multiple archives and one has higher
454 priority (as per `package-archive-priorities') only that one is
455 listed. This can be configured with `package-menu-hide-low-priority'.
457 *** `package-menu-toggle-hiding' now toggles the hiding of packages.
458 This includes the above-mentioned low-priority packages, as well as
459 available packages whose version is lower than the currently installed
460 version (which were previously impossible to display).
461 This allows users to downgrade a package if a lower version is
464 *** When filtering the package menu, keywords starting with "arc:" or
465 "status:" represent package archive or status, respectively, instead
468 *** Most functions which involve downloading information now take an
469 ASYNC argument. If it is non-nil, package.el performs the download(s)
472 *** New variable `package-menu-async' controls whether the
473 package-menu uses asynchronous downloads.
475 *** `package-install-from-buffer' and `package-install-file' work on directories.
476 This follows the same rules as installing from a .tar file, except the
477 -pkg file is optional.
479 *** Packages which are dependencies of other packages cannot be deleted.
480 The FORCE argument to `package-delete' overrides this.
482 *** New custom variable `package-selected-packages' tracks packages
483 which were installed by the user (as opposed to installed as
484 dependencies). This variable can also be manually customized.
486 *** New command `package-install-user-selected-packages' installs all
487 packages from `package-selected-packages' which are currently missing.
489 *** New command `package-autoremove' removes all packages which were
490 installed strictly as dependencies but are no longer needed.
494 When you invoke `shell' interactively, the *shell* buffer will now
495 display in a new window. However, you can customize this behavior via
496 the `display-buffer-alist' variable. For example, to get
497 the old behavior -- *shell* buffer displays in current window -- use
498 (add-to-list 'display-buffer-alist
499 '("^\\*shell\\*$" . (display-buffer-same-window))).
503 *** The `:protection' slot option is not obeyed any more.
505 *** The `newname' argument to constructors is optional&deprecated.
506 If you need your objects to be named, do it by inheriting from `eieio-named'.
508 *** The <class>-list-p and <class>-child-p functions are declared obsolete.
510 *** The <class> variables are declared obsolete.
512 *** The <initarg> variables are declared obsolete.
513 *** defgeneric and defmethod are declared obsolete.
515 *** `constructor' is now an obsolete alias for `make-instance'.
518 *** New command `ido-bury-buffer-at-head' bound to C-S-b
519 Bury the buffer at the head of `ido-matches', analogous to how C-k
520 kills the buffer at head.
521 *** A prefix argument to `ido-restrict-to-matches' will reverse its
522 meaning, and the list is restricted to those elements that do not
523 match the current input.
527 *** You can use <up> and <down> keys to move point in the multi-line
528 minibuffer just as in an ordinary buffer. Only when point moves over
529 the bottom/top of the minibuffer it goes to the next/previous history
530 element. The new commands bound to <up> and <down> in the minibuffer:
531 `next-line-or-history-element' and `previous-line-or-history-element'.
533 ** Search and Replace
535 *** Query-replace history is enhanced.
536 When query-replace reads the FROM string from the minibuffer, typing
537 `M-p' will now show previous replacements as "FROM SEP TO", where FROM
538 and TO are the original text and its replacement, and SEP is an arrow
539 string defined by the new variable `query-replace-from-to-separator'.
540 To select a prior replacement, type `M-p' until the desired
541 replacement appears in the minibuffer, and then exit the minibuffer by
546 *** If `quick-calc' is called with a prefix argument, insert the
547 result of the calculation into the current buffer.
550 ** In Edebug, you can now set the initial mode with C-x C-a C-m. With
551 this you can tell Edebug not to stop at the start of the first
552 instrumented function.
555 *** New minor mode `global-eldoc-mode'
556 *** `eldoc-documentation-function' now defaults to `ignore'
557 *** `describe-char-eldoc' displays information about character at point,
558 and can be used as a default value of `eldoc-documentation-function'. It is
559 useful when, for example, one needs to distinguish various spaces (e.g. ] [,
560 ] [, ] [, etc.) while using mono-spaced font.
565 *** HTML can now be rendered using variable-width fonts.
568 *** A new command `F' (`eww-toggle-fonts') can be used to toggle
569 whether to use variable-pitch fonts or not. The user can also
570 customize the `shr-use-fonts' variable.
573 *** A new command `R' (`eww-readable') will try do identify the main
574 textual parts of a web page and display only that, leaving menus and
575 the like off the page.
578 *** You can now use several eww buffers in parallel by renaming eww
579 buffers you want to keep separate.
582 *** Partial state of the eww buffers (the URIs and the titles of the
583 pages visited) is now preserved in the desktop file.
586 *** `eww-after-render-hook' is now called after eww has rendered
587 the data in the buffer.
590 *** The `eww-reload' command now takes a prefix to not reload via
591 the net, but just use the local copy of the HTML.
594 *** The DOM shr and eww uses has been changed to the general Emacs
595 xml.el/libxml2 DOM, and a new package dom.el has been added to
596 interact with this DOM. See the Emacs Lisp manual for interface
600 *** `mailcap-mime-data' is now consulted when displaying PDF files.
603 *** The new `S' command will list all eww buffers, and allow managing
607 *** https pages with valid certificates have headers marked in green, while
608 invalid certificates are marked in red.
612 *** text/html messages that contain inline image parts will be
613 transformed into multipart/related messages before sending.
616 *** New UPatterns `quote', `app', `cl-struct', and `eieio'.
617 *** New UPatterns can be defined with `pcase-defmacro'.
619 *** New vector QPattern.
622 *** Strings after `:documentation' are highlighted as docstrings.
625 *** Rectangle Mark mode can have corners past EOL or in the middle of a TAB.
626 *** C-x C-x in rectangle-mark-mode now cycles through the four corners.
627 *** `string-rectangle' provides on-the-fly preview of the result.
629 ** New font-lock functions font-lock-ensure and font-lock-flush, which
630 should be used instead of font-lock-fontify-buffer when called from Elisp.
632 ** Macro `minibuffer-with-setup-hook' takes (:append FUN) to mean
633 appending FUN to `minibuffer-setup-hook'.
636 *** New functions cl-fresh-line, cl-digit-char-p and cl-parse-integer.
638 ** Calendar and diary
641 *** The default `diary-file' is now located in .emacs.d.
644 *** New commands to insert diary entries with Chinese dates:
645 `diary-chinese-insert-anniversary-entry' `diary-chinese-insert-entry'
646 `diary-chinese-insert-monthly-entry', `diary-chinese-insert-yearly-entry'.
649 *** The calendar can now list and mark diary entries with Chinese dates.
650 See `diary-chinese-list-entries' and `diary-chinese-mark-entries'.
653 *** The option `calendar-mode-line-format' can now be nil,
654 which means to do nothing special with the mode line in calendars.
657 *** New option `calendar-weekend-days'.
658 The option customizes which day headers receive the
659 `calendar-weekend-header' face.
662 *** New optional args N and STRING for ‘holiday-greek-orthodox-easter’.
665 *** Many items obsolete since at least version 23.1 have been removed.
666 The majority were function/variable/face aliases, too numerous to list here.
669 **** Functions `calendar-one-frame-setup', `calendar-only-one-frame-setup',
670 `calendar-two-frame-setup', `european-calendar', `american-calendar'.
672 **** Hooks `cal-menu-load-hook', `cal-x-load-hook'.
674 **** Macro `calendar-for-loop'.
676 **** Variables `european-calendar-style', `diary-face', `hebrew-holidays-{1,4}'.
678 **** The nil and list forms of `diary-display-function'.
680 ** New ERT function `ert-summarize-tests-batch-and-exit'.
682 ** New js.el option `js-indent-first-init'.
685 ** `Info-fontify-maximum-menu-size' can be t for no limit.
688 ** `info-display-manual' can now be given a prefix argument which (any
689 non-nil value) directs the command to limit the completion
690 alternatives to currently visited manuals.
693 ** ntlm.el has support for NTLM2.
697 *** The Rmail commands d, C-d and u take optional repeat counts to delete or
698 undelete multiple messages.
700 *** Rmail can now render HTML mail messages if your Emacs was built with
701 libxml2 or if you have the Lynx browser installed. By default, Rmail
702 will display the HTML version of a mail message that has both HTML and
703 plain text parts, if display of HTML email is possible; customize the
704 `rmail-mime-prefer-html' option to `nil' if you don't want that.
707 *** In the commands that make summaries by subject, recipients, or senders,
708 you can no longer use commas to separate regular expressions.
710 ** SES now supports local printer functions; see `ses-define-local-printer'.
713 *** In sh-mode you can now use `sh-shell' as a file-local variable to
714 specify the type of shell in use (bash, csh, etc).
716 *** New value `always' for sh-indent-after-continuation.
717 This provides old-style ("dumb") indentation of continued lines.
721 *** Fatal TLS errors are now silent by default.
725 *** The URL package accepts now the protocols "ssh", "scp" and "rsync".
726 When `url-handler-mode' is enabled, file operations for these
727 protocols as well as for "telnet" and "ftp" are passed to Tramp.
729 *** The URL package allows customizing the `url-user-agent' string.
730 The new `url-user-agent' variable can be customized to be a string or
733 *** The new interface variable `url-request-noninteractive' can be used
734 to specify that we're running in a noninteractive context, and that
735 we should not be queried about things like TLS certificate validity.
737 *** If URL is used with a https connection, the first callback argument
738 plist will contain a :peer element that has the output of
739 `gnutls-peer-status' (if Emacs is built with GnuTLS support).
744 *** New connection method "afp", which allows to access Mac OS X
745 volumes via the Apple Filing Protocol.
748 *** New connection method "nc", which allows to access dumb busyboxes.
751 *** Method-specific parameters can be overwritten now with variable
752 `tramp-connection-properties'.
755 *** Handler for `file-notify-valid-p' for remote machines that support
756 filesystem notifications.
760 *** New user variable `sql-default-directory' enables remote
761 connections using Tramp.
763 *** New command `sql-send-line-and-next' sends the current line to the
764 interactive buffer and advances to the next line, skipping whitespace
767 *** Add support for Vertica SQL.
769 ** VC and related modes
771 *** Basic push support, via `vc-push', bound to `C-x v P'.
772 Implemented for Bzr, Git, Hg. As part of this change, the pre-existing
773 (undocumented) command vc-hg-push now behaves slightly differently.
775 *** The new command vc-region-history shows the log+diff of the active region.
777 *** New option `vc-annotate-background-mode' controls whether
778 the color range from `vc-annotate-color-map' is applied to the
779 background or to the foreground.
781 *** `compare-windows' now compares text with the most recently used window
782 instead of the next window. The new option `compare-windows-get-window-function'
783 allows to customize this.
785 *** Two new faces `compare-windows-removed' and `compare-windows-added'
786 replace the obsolete face `compare-windows'.
789 *** `log-edit-insert-changelog' converts "(tiny change)" to
790 "Copyright-paperwork-exempt: yes". Set `log-edit-rewrite-tiny-change'
793 ** VHDL mode supports VHDL'08.
795 ** Calculator: decimal display mode uses "," groups, so it's more
796 fitting for use in money calculations; factorial works with
799 ** HideIfDef mode now support full C/C++ expressions, argumented macro expansions,
800 interactive macro evaluation and automatic scanning of #defined symbols.
802 *** New custom variable `hide-ifdef-header-regexp' to define C/C++ header file
803 name patterns. Default case-insensitive .h, .hh, .hpp, .hxx, and .h++.
804 *** New custom variable `hide-ifdef-expand-reinclusion-protection' to prevent
805 reinclusion protected header files from being fully hidden.
806 *** New custom variable `hide-ifdef-exclude-define-regexp' to define symbol
807 name patterns (e.g. all "FOR_DOXYGEN_ONLY_*") to be excluded.
811 *** New custom variable `tex-print-file-extension' to help users who
812 use PDF instead of DVI.
814 *** TeX mode now supports Prettify Symbols mode. When enabling
815 `prettify-symbols-mode' in a tex-mode buffer, \alpha ... \omega, and
816 many other math macros are displayed using unicode characters.
818 ** whitespace-mode: new 'big-indent style highlighting too much indentation.
819 By default, 32 spaces and four TABs are considered to be too much but
820 `whitespace-big-indent-regexp' can be configured to change that.
822 ** tildify: `tildify-space-string', `tildify-pattern', and
823 `tildify-foreach-region-function' variables added making
824 `tildify-string-alist', `tildify-pattern-alist', and
825 `tildify-ignored-environments-alist' variables (as well as a few
826 helper functions) obsolete.
829 The new package provides generic framework and new commands to find
830 and move to definitions, as well as pop back to the original location.
833 `xref-find-definitions' replaces `find-tag' and provides an interface
834 to pick one destination among several. Hence, `tags-loop-continue' is
835 unbound. `xref-pop-marker-stack' replaces `pop-tag-mark', but uses an
836 easier binding, which is now unoccupied (`M-,').
837 `xref-find-definitions-other-window' replaces `find-tag-other-window'.
838 `xref-find-definitions-other-frame' replaces `find-tag-other-frame'.
839 `xref-find-apropos' replaces `find-tag-regexp'.
842 `find-tag-marker-ring-length' is now an obsolete alias for
843 `xref-marker-ring-length'. `find-tag-marker-ring' is now an obsolete
844 alias for a private variable. `xref-push-marker-stack' and
845 `xref-pop-marker-stack' should be used to mutate it instead.
848 As a result of the above, these commands are now obsolete:
849 `find-tag-other-window', `find-tag-other-frame', `find-tag-regexp',
850 `tags-apropos' and `tags-loop-continue'.
853 EUDC's LDAP backend has been improved.
855 *** EUDC supports LDAP-over-SSL URLs (ldaps://).
857 *** EUDC passes LDAP passwords through a pipe to the ldapsearch
858 subprocess instead of on the command line.
860 *** EUDC handles LDAP wildcards automatically so the user shouldn't
861 need to configure this manually anymore.
863 *** The LDAP configuration section of EUDC's manual has been
866 There have also been customization changes.
868 *** New custom variable `eudc-server-hotlist' to allow specifying
869 multiple EUDC servers in init file.
871 *** Custom variable `eudc-inline-query-format' defaults to completing
872 on email and firstname instead of surname.
874 *** Custom variable `eudc-expansion-overwrites-query' defaults to nil
875 to avoid interfering with the kill ring.
877 *** Custom variable `eudc-inline-expansion-format' defaults to
878 "Firstname Surname <mail-address>".
880 *** Custom variable `eudc-options-file' defaults to
881 "~/.emacs.d/eudc-options".
883 *** New custom variable `ldap-ldapsearch-password-prompt-regexp' to
884 allow overriding the regular expression that recognizes the ldapsearch
885 command line's password prompt.
887 EUDC's BBDB backend now supports BBDB 3.
892 *** The new built-in command `clear' can scroll window contents out of sight.
893 If provided with an optional non-nil argument, the scrollback contents will be cleared.
895 *** New buffer syntax '#<buffer-name>', which is equivalent to
896 '#<buffer buffer-name>'. This shorthand makes interacting with
897 buffers from eshell more convenient. Custom variable
898 `eshell-buffer-shorthand', which has been broken for a while, has been
901 *** By default, eshell "visual" program buffers (created by
902 `eshell-visual-commands' and similar custom vars) are no longer killed
903 when their processes die. This fixes issues with short-lived commands
904 and makes visual programs more useful in general. For example, if
905 "git log" is a visual command, it will always show the visual command
906 buffer, even if the "git log" process dies. For the old behavior,
907 make the new option `eshell-destroy-buffer-when-process-dies' non-nil.
911 *** Support for the Conkeror web browser.
914 *** Support for several ancient browsers is now officially obsolete.
917 ** tar-mode: new `tar-new-entry' command, allowing for new members to
918 be added to the archive.
921 ** Autorevert: dired buffers are also auto-reverted via file
922 notifications, if Emacs is compiled with file notification support.
924 ** File Notifications
927 *** The new event `stopped' signals, that a file notification watch is
928 not active any longer.
931 *** The new function `file-notify-valid-p' checks, whether a file
932 notification descriptor still corresponds to an activate watch.
937 *** The command `dired-do-compress' bound to `Z' now can compress
938 directories and decompress zip files.
941 *** New command `dired-do-compress-to' bound to `c' can be used to
942 compress many marked files into a single named archive. The
943 compression command is determined from the new
944 `dired-compress-files-alist' variable.
951 *** landmark.el (moved to elpa.gnu.org)
954 * New Modes and Packages in Emacs 25.1
956 ** pinentry.el allows GnuPG passphrase to be prompted through the
957 minibuffer instead of a graphical dialog, depending on whether the gpg
958 command is called from Emacs (i.e., INSIDE_EMACS environment variable
959 is set). This feature requires newer versions of GnuPG (2.1.5 or
960 later) and Pinentry (0.9.5 or later).
962 ** cl-generic.el provides CLOS-style multiple-dispatch generic functions.
964 ** scss-mode (a minor variant of css-mode)
966 ** let-alist is a new macro (and a package) that allows one to easily
967 let-bind the values stored in an alist.
969 ** `tildify-mode' allows to automatically insert hard spaces as one
970 types the text. Breaking line after a single-character words is
971 forbidden by Czech and Polish typography (and may be discouraged in
972 other languages), so `auto-tildify-mode' makes it easier to create
973 a typographically-correct documents.
975 ** The `seq' library adds sequence manipulation functions and macros
976 that complement basic functions provided by subr.el. All functions
977 are prefixed with `seq-' and work on lists, strings and vectors.
979 ** The `map' library provides map-manipulation functions that work on
980 alists, hash-table and arrays. All functions are prefixed with
983 ** The `thunk' library provides functions and macros to control the
986 ** js-jsx-mode (a minor variant of js-mode) provides indentation
987 support for JSX, an XML-like syntax extension to ECMAScript.
990 * Incompatible Lisp Changes in Emacs 25.1
993 ** `setq' and `setf' must now be called with an even number of
994 arguments. The earlier behavior of silently supplying a nil to the
995 last variable when there was an odd number of arguments has been
998 ** `syntax-begin-function' is declared obsolete.
999 Removed font-lock-beginning-of-syntax-function and the SYNTAX-BEGIN
1000 slot in font-lock-defaults.
1003 ** `package-initialize' now sets `package-enable-at-startup' to nil if
1004 called during startup. Users who call this function in their init
1005 file and still expect it to be run after startup should set
1006 `package-enable-at-startup' to t after the call to
1007 `package-initialize'.
1009 ** `:global' minor mode use `setq-default' rather than `setq'.
1010 This means that you can't use `make-local-variable' and expect them to
1011 "magically" become buffer-local.
1013 ** `inhibit-point-motion-hooks' now defaults to t and is obsolete.
1016 ** `track-mouse' no longer freezes the shape of the mouse pointer.
1017 The `track-mouse' form no longer refrains from changing the shape of
1018 the mouse pointer for the entire time the body of that form is
1019 executed. Lisp programs that use `track-mouse' for dragging across
1020 large portions of the Emacs display, and want to avoid changes in the
1021 pointer shape during dragging, should bind the variable `track-mouse'
1022 to the special value `dragging' in the body of the form.
1024 ** The optional `predicate' argument of `lisp-complete-symbol' no longer
1025 has any effect. (This change was made in Emacs 24.4 but was not
1026 advertised at the time.)
1028 ** `indirect-function' does not signal `void-function' any more.
1029 This is mostly a bug-fix, since this change was missed back in 24.4 when
1030 symbol-function was changed not to signal `void-function' any more.
1031 *** As a consequence, the second arg of `indirect-function' is now obsolete.
1033 ** Comint, term, and compile do not set the EMACS env var any more.
1034 Use the INSIDE_EMACS environment variable instead.
1036 ** `save-excursion' does not save&restore the mark any more.
1038 ** read-buffer-function can now be called with a 4th argument (`predicate').
1040 ** completion-table-dynamic stays in the minibuffer.
1041 If you want the old behavior of calling the function in the buffer
1042 from which the minibuffer was entered, call it with the new argument
1045 ** window-configurations no longer record the buffers' marks.
1047 ** inhibit-modification-hooks now also inhibits lock-file checks, as well as
1048 active region handling.
1050 ** deactivate-mark is now buffer-local.
1052 ** `cl-the' now asserts that its argument is of the given type.
1054 ** `process-running-child-p` may now return a numeric process
1055 group ID instead of `t'.
1058 ** Mouse click events on mode line or header line no longer include
1059 any reference to a buffer position. The 6th member of the mouse
1060 position list returned for such events is now nil.
1062 ** Menu items in keymaps do not support the "key shortcut cache" any more.
1063 These slots used to hold key-shortcut data, but have been obsolete since
1066 ** Emacs no longer downcases the first letter of a system diagnostic
1067 when signaling a file error. For example, it now reports "Permission
1068 denied" instead of "permission denied". The old behavior was problematic
1069 in languages like German where downcasing rules depend on grammar.
1072 ** New variable ‘text-quoting-style’ to control how Emacs translates quotes.
1073 Set it to ‘curve’ for curved single quotes ‘like this’, to ‘straight’
1074 for straight apostrophes 'like this', and to ‘grave’ for grave accent
1075 and apostrophe `like this'. The default value nil acts like ‘curve’
1076 if curved single quotes are displayable, and like ‘grave’ otherwise.
1077 The new variable affects display of diagnostics and help, but not of info.
1080 ** substitute-command-keys now replaces quotes.
1081 That is, it converts documentation strings’ quoting style as per the
1082 value of ‘text-quoting-style’. Doc strings in source code can use
1083 either curved single quotes or grave accents and apostrophes. As
1084 before, characters preceded by \= are output as-is.
1087 ** Message-issuing functions ‘error’, ‘message’, etc. now convert quotes.
1088 They use the new ‘format-message’ function instead of plain ‘format’,
1089 so that they now follow user preference as per ‘text-quoting-style’
1090 when processing curved single quotes, grave accents, and apostrophes
1091 in their format argument.
1094 ** The character classes [:alpha:] and [:alnum:] in regular expressions
1095 now match multibyte characters using Unicode character properties.
1096 If you want the old behavior where they matched any character with
1097 word syntax, use `\sw' instead.
1100 ** The character classes [:graph:] and [:print:] in regular expressions
1101 no longer match every multibyte character. Instead, Emacs now
1102 consults the Unicode character properties to determine which
1103 characters are graphic or printable. In particular, surrogates and
1104 unassigned codepoints are now rejected. If you want the old behavior,
1105 use [:multibyte:] instead.
1108 ** The `diff' command uses the unified format now. To restore the old
1109 behavior, set `diff-switches' to `-c'.
1111 ** `grep-template' and `grep-find-template' values don't include the
1112 --color argument anymore. It's added at the <C> place holder position
1113 dynamically. Any third-party code that changes these templates should
1114 be updated accordingly.
1117 ** ‘(/ N)’ is now equivalent to ‘(/ 1 N)’ rather than to ‘(/ N 1)’.
1118 The new behavior is compatible with Common Lisp and with XEmacs.
1119 This change does not affect Lisp code intended to be portable to
1120 Emacs 24.2 and earlier, which did not support unary ‘/’.
1123 ** The `default-directory' value doesn't have to end slash. To make
1124 that happen, `unhandled-file-name-directory' now defaults to calling
1125 `file-name-as-directory'.
1128 * Lisp Changes in Emacs 25.1
1130 ** syntax-propertize is now automatically called on-demand during forward
1131 parsing functions like `forward-sexp'.
1133 ** New hooks prefix-command-echo-keystrokes-functions and
1134 prefix-command-preserve-state-hook, to allow the definition of prefix
1135 commands other than the predefined C-u.
1137 ** New functions `filepos-to-bufferpos' and `bufferpos-to-filepos'.
1139 ** The default value of `load-read-function' is now `read'.
1141 ** New hook `pre-redisplay-functions', a bit easier to use than pre-redisplay-function.
1143 ** The second arg of `looking-back' should always be provided explicitly.
1145 ** Obsolete text properties `intangible', `point-entered', and `point-left'.
1146 Replaced by properties `cursor-intangible' and `cursor-sensor-functions',
1147 implemented by the new `cursor-intangible-mode' and
1148 `cursor-sensor-mode' minor modes.
1150 ** New process type `pipe', which can be used in combination with the
1151 `:stderr' keyword of make-process to handle standard error output
1154 ** New function `make-process' provides an alternative interface to
1155 `start-process'. It allows programs to set process parameters such as
1156 process filter, sentinel, etc., through keyword arguments (similar to
1157 `make-network-process').
1159 ** `read-buffer' takes a new `predicate' argument.
1161 ** Emacs Lisp now supports generators.
1163 ** New finalizer facility for running code when objects
1166 ** lexical closures can use (:documentation <form>) to build their docstring.
1167 It should be placed right where the docstring would be, and <form> is then
1168 evaluated (and should return a string) when the closure is built.
1170 ** define-inline provides a new way to define inlinable functions.
1172 ** New function `macroexpand-1' to perform a single step of macroexpansion.
1174 ** Some "x-*" were obsoleted:
1175 *** x-select-text is renamed gui-select-text.
1176 *** x-selection-value is renamed gui-selection-value.
1177 *** x-get-selection is renamed gui-get-selection.
1178 *** x-get-clipboard and x-clipboard-yank are marked obsolete.
1179 *** x-get-selection-value is renamed to gui-get-primary-selection.
1180 *** x-set-selection is renamed to gui-set-selection
1182 ** New function `string-greaterp', which return the opposite result of
1185 ** New function `alist-get', which is also a valid place (aka lvalue).
1187 ** New function `funcall-interactively', which works like `funcall'
1188 but makes `called-interactively-p' treat the function as (you guessed it)
1189 called interactively.
1191 ** New function `function-put' to use instead of `put' for function properties.
1194 ** New properties that can be specified with `declare':
1195 *** (interactive-only INSTEAD), says to use INSTEAD for non-interactive use.
1196 *** (pure VAL), if VAL is non-nil, indicates the function is pure.
1197 *** (side-effect-free VAL), if VAL is non-nil, indicates the function does not
1201 ** New macro `with-file-modes', for evaluating expressions with default file
1202 permissions set to temporary values (e.g., for creating private files).
1204 ** You can access the slots of structures using `cl-struct-slot-value'.
1206 ** Function `sort' can deal with vectors.
1208 ** Function `system-name' now returns an updated value if the current
1209 system's name has changed or if the Emacs process has changed systems,
1210 and to avoid long waits it no longer consults DNS to canonicalize the
1211 name. The variable `system-name' is now obsolete.
1214 ** Function `write-region' no longer outputs "Wrote FILE" in batch mode.
1216 ** If `pwd' is called with a prefix argument, insert the current default
1220 ** New utilities in subr-x.el:
1221 *** New macros `if-let' and `when-let' allow defining bindings and to
1222 execute code depending whether all values are true.
1223 *** New macros `thread-first' and `thread-last' allow threading a form
1224 as the first or last argument of subsequent forms.
1227 ** Documentation strings now support quoting with curved single quotes
1228 ‘like-this’ in addition to the old style with grave accent and
1229 apostrophe `like-this'. The new style looks better on today's displays.
1230 In the new Electric Quote mode, you can enter curved single quotes
1231 into documentation by typing ` and '. Outside Electric Quote mode,
1232 you can enter them by typing ‘C-x 8 [’ and ‘C-x 8 ]’, or (if your Alt
1233 key works) by typing ‘A-[’ and ‘A-]’. As described above under
1234 ‘text-quoting-style’, the user can specify how to display doc string
1238 ** New function ‘format-message’ is like ‘format’ and also converts
1239 curved single quotes, grave accents and apostrophes as per
1240 ‘text-quoting-style’.
1243 ** show-help-function's arg is converted via substitute-command-keys
1244 before being passed to the function. Help strings, help-echo
1245 properties, etc. can therefore contain command key escapes and
1249 ** Time-related changes:
1251 *** Time conversion functions now accept an optional ZONE argument
1252 that specifies the time zone rules for conversion. ZONE is omitted or
1253 nil for Emacs local time, t for Universal Time, ‘wall’ for system wall
1254 clock time, or a string as in ‘set-time-zone-rule’ for a time zone
1255 rule. The affected functions are ‘current-time-string’,
1256 ‘current-time-zone’, ‘decode-time’, and ‘format-time-string’. The
1257 function ‘encode-time’, which already accepted a simple time zone rule
1258 argument, has been extended to accept all the new forms.
1260 *** Time-related functions now consistently accept numbers
1261 (representing seconds since the epoch) and nil (representing the
1262 current time) as well as the usual list-of-integer representation.
1263 Affected functions include `current-time-string', `current-time-zone',
1264 `decode-time', `float-time', `format-time-string', `seconds-to-time',
1265 `time-add', `time-less-p', `time-subtract', `time-to-day-in-year',
1266 `time-to-days', and `time-to-seconds'.
1268 *** The `encode-time-value' and `with-decoded-time-value' macros have
1271 *** `calendar-next-time-zone-transition', `time-add', and
1272 `time-subtract' no longer return time values in the obsolete and
1273 undocumented integer-pair format. Instead, they return a list of two
1277 ** New function `set-binary-mode' allows to switch a standard stream
1278 of the Emacs process to binary I/O mode.
1280 ** ASCII approximations to curved quotes are put in standard-display-table
1281 if the terminal cannot display curved quotes.
1283 ** Standard output and error streams now transliterate characters via
1284 standard-display-table, and encode output using locale-coding-system.
1286 ** Miscellaneous name change
1288 For consistency with the usual Emacs spelling, the Lisp variable
1289 `hfy-optimisations' has been renamed to `hfy-optimizations'.
1290 The old name should still work, as an obsolescent alias.
1293 * Changes in Frames and Windows Code in Emacs 25.1
1296 ** Emacs can now draw horizontal scroll bars on some platforms that
1297 provide toolkit scroll bars, namely Gtk+, Lucid, Motif and Windows.
1298 Horizontal scroll bars are turned off by default.
1299 *** New function `horizontal-scroll-bars-available-p' telling whether
1300 horizontal scroll bars are available on the underlying system.
1301 *** New mode `horizontal-scroll-bar-mode' to toggle horizontal scroll
1302 bars on all existing and future frames.
1303 *** New function `toggle-horizontal-scroll-bar' to toggle horizontal
1304 scroll bars on the selected frame.
1305 *** New frame parameters `horizontal-scroll-bars' and
1306 `scroll-bar-height' to set horizontal scroll bars and their height
1307 for individual frames and in `default-frame-alist'.
1308 *** New functions `frame-scroll-bar-height' and
1309 `window-scroll-bar-height' return the height of horizontal scroll
1310 bars on a specific frame or window.
1311 *** `set-window-scroll-bars' now accepts five parameters where the last
1312 two specify height and type of the window's horizontal scroll bar.
1313 *** `window-scroll-bars' now returns type and sizes of horizontal scroll
1315 *** New buffer-local variables `horizontal-scroll-bar' and
1316 `scroll-bar-height'.
1319 ** New functions `frame-geometry' and `frame-edges' give access to a
1323 ** New functions `mouse-absolute-pixel-position' and
1324 `set-mouse-absolute-pixel-position' get/set screen coordinates of the
1328 ** The function `window-edges' now accepts three additional arguments to
1329 retrieve body, absolute and pixel edges of the window.
1332 ** The functions `window-inside-edges', `window-inside-pixel-edges' and
1333 `window-inside-absolute-pixel-edges' have been renamed to respectively
1334 `window-body-edges', `window-body-pixel-edges' and
1335 `window-absolute-body-pixel-edges'. The old names are kept as aliases.
1338 ** New function `window-absolute-pixel-position' to get the screen
1339 coordinates of a visible buffer position.
1342 ** The height of a frame's menu and tool bar are no longer counted in the
1343 frame's text height. This means that the text height stands only for
1344 the height of the frame's root window plus that of the echo area (if
1345 present). This was already the behavior for frames with external tool
1346 and menu bars (like in the Gtk builds) but has now been extended to all
1350 ** Frames now do not necessarily preserve the number of columns or lines
1351 they display when setting default font, menu bar, fringe width, or
1352 scroll bars. In particular, maximized and fullscreen frames are
1353 conceptually never resized if such settings change. For fullheight and
1354 fullwidth frames, the behavior may depend on the toolkit used.
1355 *** New option `frame-inhibit-implied-resize' if non-nil, means that
1356 setting default font, menu bar, fringe width, or scroll bars of a
1357 specific frame does not resize that frame in order to preserve the
1358 number of columns or lines it displays.
1361 ** New function `window-preserve-size' allows to preserve the size of
1362 windows without "fixing" it. It's supported by `fit-window-to-buffer',
1363 `temp-buffer-resize-mode' and `display-buffer'.
1366 ** New minor mode `window-divider-mode' and options
1367 `window-divider-default-places', `window-divider-default-bottom-width'
1368 and `window-divider-default-right-width'.
1371 ** New option `switch-to-buffer-in-dedicated-window' allows to customize
1372 how `switch-to-buffer' proceeds interactively when the selected window
1373 is strongly dedicated to its buffer.
1376 ** The option `even-window-heights' has been renamed to
1377 `even-window-sizes' and now handles window widths as well.
1379 ** Tearoff menus and detachable toolbars for Gtk+ has been removed.
1380 Those features have been deprecated in Gtk+ for a long time.
1384 *** etags no longer qualifies class members by default.
1385 By default, `etags' will not qualify class members for C-like
1386 object-oriented languages with their class names and namespaces, and
1387 will remove qualifications used explicitly in the code from the tag
1388 names it puts in TAGS files. This is so the etags.el back-end for
1389 `xref-find-definitions' is more accurate and produces less false
1392 Use --class-qualify (-Q) if you want the old default behavior of
1393 qualifying class members in C++, Java, and Objective C. Note that
1394 using -Q might make some class members become "unknown" to `M-.'
1395 (`xref-find-definitions'); if so, you can use `C-u M-.' to specify the
1396 qualified names by hand.
1399 * Changes in Emacs 25.1 on Non-Free Operating Systems
1402 ** MS-Windows specific Emacs build scripts are no longer in the distribution
1403 This includes the makefile.w32-in files in various subdirectories, and
1404 the support files. The file nt/configure.bat now just tells the user
1405 to use the procedure described in nt/INSTALL, by running the Posix
1406 `configure' script in the top-level directory.
1409 ** Building Emacs for MS-Windows requires at least Windows XP
1410 or Windows Server 2003. The built binaries still run on all versions
1411 of Windows starting with Windows 9X.
1414 ** Emacs running on MS-Windows now supports the daemon mode.
1416 ** The byte counts in etags-generated TAGS files are now the same on
1417 MS-Windows as they are on other platforms.
1420 ** On OS X, configure creates a Cocoa ("Nextstep") build by default.
1421 Pass '--without-ns' to configure to create an X11 build, the old default.
1423 ** OS X 10.5 or older is no longer supported.
1425 ** OS X on PowerPC is no longer supported.
1428 ** The new function 'w32-application-type' returns the type of an
1429 MS-Windows application given the name of its executable program file.
1432 ----------------------------------------------------------------------
1433 This file is part of GNU Emacs.
1435 GNU Emacs is free software: you can redistribute it and/or modify
1436 it under the terms of the GNU General Public License as published by
1437 the Free Software Foundation, either version 3 of the License, or
1438 (at your option) any later version.
1440 GNU Emacs is distributed in the hope that it will be useful,
1441 but WITHOUT ANY WARRANTY; without even the implied warranty of
1442 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1443 GNU General Public License for more details.
1445 You should have received a copy of the GNU General Public License
1446 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
1452 paragraph-separate: "[
\f]*$"