nnimap.el (nnimap-wait-for-response): Minor fixup of message string.
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1GNU Emacs NEWS -- history of user-visible changes.
2
3Copyright (C) 2010-2012 Free Software Foundation, Inc.
4See the end of the file for license conditions.
5
6Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
7If possible, use M-x report-emacs-bug.
8
9This file is about changes in Emacs version 24.
10
11See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
12and NEWS.1-17 for changes in older Emacs versions.
13
14You can narrow news to a specific version by calling `view-emacs-news'
15with a prefix argument or by typing C-u C-h C-n.
16
17
18Temporary note:
19 +++ indicates that the appropriate manual has already been updated.
20 --- means no change in the manuals is called for.
21When you add a new item, please add it without either +++ or ---
22so we will look at it and add it to the manual.
23
24\f
25* Installation Changes in Emacs 24.1
26
27---
28** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
29to configure. Note that other libraries used by Emacs, RSVG and GConf,
30also depend on Gtk+. You can disable them with --without-rsvg and
31--without-gconf.
32
33---
34** Emacs can be compiled with GnuTLS support.
35This happens by default if a suitably recent version of the library is
36found at build time. To prevent this, use the configure option
37`--without-gnutls'. See below for GnuTLS features.
38
39---
40** Emacs can be compiled with SELinux support.
41This happens by default if a suitably recent version of the library is
42found at build time. To prevent this, use the configure option
43`--without-selinux'. See below for SELinux features.
44
45---
46** Emacs can be compiled with ImageMagick support.
47This happens by default if a suitably recent version of the library is
48found at build time. To prevent this, use the configure option
49`--without-imagemagick'. See below for ImageMagick features.
50This feature is not available for the Nextstep or MS ports.
51
52---
53** Emacs can be compiled with libxml2 support.
54This happens by default if a suitably recent version of the library is
55found at build time. To prevent this, use the configure option
56`--without-xml2'. See below for libxml2 features.
57
58---
59** There is a new configure option --with-wide-int.
60With it, Emacs integers typically have 62 bits, even on 32-bit machines.
61On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB
62to about 2 GiB.
63
64---
65** By default, the installed Info and man pages are compressed.
66You can disable this by configuring --without-compress-info.
67
68---
69** There are new configure options:
70--with-mmdf, --with-mail-unlink, --with-mailhost.
71These provide no new functionality, they just remove the need to edit
72lib-src/Makefile by hand in order to use the associated features.
73
74---
75** There is a new configure option --enable-use-lisp-union-type.
76This is only useful for Emacs developers to debug certain types of bugs.
77This is not a new feature; only the configure flag is new.
78
79---
80** The standalone programs digest-doc and sorted-doc are removed.
81Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'.
82
83---
84** The standalone program `fakemail' is removed.
85If you need it, feedmail.el provides a superset of the functionality.
86
87\f
88* Startup Changes in Emacs 24.1
89
90---
91** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
92command line arguments, and the EMACS_UNIBYTE environment variable, no
93longer have any effect. (They were declared obsolete in Emacs 23.)
94
95+++
96** New command line option `--no-site-lisp' removes site-lisp directories
97from load-path. -Q now implies this. This option does not affect the
98EMACSLOADPATH environment variable (and hence has no effect for
99Nextstep builds.)
100
101\f
102* Changes in Emacs 24.1
103
104+++
105** auto-mode-case-fold is now enabled by default.
106
107** Completion
108
109*** shell-mode uses pcomplete rules, with the standard completion UI.
110+++
111*** Many packages have been changed to use `completion-at-point'
112rather than their own completion code.
113+++
114*** `completion-at-point' now handles tags and semantic completion.
115---
116*** Completion in a non-minibuffer now tries to detect the end of completion
117and pops down the *Completions* buffer accordingly.
118+++
119*** Completion can cycle, depending on completion-cycle-threshold.
120+++
121*** New completion style `substring'.
122+++
123*** Completion style can be set per-category `completion-category-overrides'.
124+++
125*** Completion of buffers now uses substring completion by default.
126
127** Mail changes
128
129+++
130*** The default of `send-mail-function' is now `sendmail-query-once',
131which asks the user (once) whether to use the smtpmail package to send
132email, or to use the old defaults that rely on external mail
133facilities (`sendmail-send-it' on GNU/Linux and other Unix-like
134systems, and `mailclient-send-it' on Windows).
135
136*** smtpmail changes
137
138**** smtpmail now uses encrypted connections (via STARTTLS) if the
139mail server supports them. It also uses the auth-source framework for
140getting credentials.
141
142**** The variable `smtpmail-auth-credentials' has been removed.
143That variable used to have the default value "~/.authinfo", in which
144case you won't see any difference. But if you changed it to be a list
145of user names and passwords, that setting is now ignored; you will be
146prompted for the user name and the password, which will then be saved
147to ~/.authinfo. (To control where and how the credentials are stored,
148see the auth-source manual. You may want to change the auth-source
149preferences if you want to store the credentials encrypted, for
150instance.)
151
152You can also manually copy the credentials to your ~/.authinfo file.
153For example, if you had
154
155 (setq smtpmail-auth-credentials
156 '(("mail.example.org" 25 "jim" "s!cret")))
157
158then the equivalent line in ~/.authinfo would be
159
160 machine mail.example.org port 25 login jim password s!cret
161
162**** The variable `smtpmail-starttls-credentials' has been removed.
163
164If you had that set, then you need to put
165
166 machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert"
167
168in your ~/.authinfo file instead.
169
170*** Mail mode changes (this is the old Mail mode, not Message mode)
171+++
172**** New command `mail-add-attachment' for adding MIME attachments
173---
174**** The command `mail-attach-file' was renamed to `mail-insert-file'.
175The old name is now an obsolete alias to the new name.
176
177+++
178*** You can type C-c m from M-x report-emacs-bug if you prefer, and if
179your system supports it, to transfer your report to your desktop's
180preferred mail client. This uses either the "xdg-email" utility, or
181OS X's "open" command.
182
183** Emacs server and client changes
184+++
185*** New option `server-port' specifies the port on which the Emacs
186server should listen.
187+++
188*** New emacsclient argument -q/--quiet suppresses some status messages.
189+++
190*** New emacsclient argument --frame-parameters can be used to set the
191frame parameters of a newly-created graphical frame.
192+++
193*** If emacsclient shuts down as a result of Emacs signaling an
194error, its exit status is 1.
195+++
196*** New emacsclient argument --parent-id ID.
197This opens a client frame in parent X window ID, via XEmbed, similar
198to the --parent-id argument to Emacs.
199
200** Internationalization changes
201
202+++
203*** Emacs now supports display and editing of bidirectional text.
204
205Text that includes characters from right-to-left (RTL) scripts, such
206as Arabic, Farsi, or Hebrew, is displayed in the correct visual order
207as expected by users of those scripts. This display reordering is a
208"Full bidirectionality" class implementation of the Unicode
209Bidirectional Algorithm. Buffers with no RTL text should look exactly
210the same as before.
211
212For more information, see the node "Bidirectional Editing" in the
213Emacs Manual.
214
215+++
216**** New buffer-local variable `bidi-display-reordering'.
217To disable display reordering in any given buffer, change this to nil.
218
219+++
220**** New buffer-local variable `bidi-paragraph-direction'.
221If nil (the default), Emacs determines the base direction of each
222paragraph from its text, as specified by the Unicode Bidirectional
223Algorithm.
224
225Setting this to `right-to-left' or `left-to-right' forces a particular
226base direction on each paragraph in the buffer.
227
228Paragraphs whose base direction is right-to-left are displayed
229starting at the right margin of the window.
230
231+++
232*** Enhanced support for characters with no glyphs in available fonts.
233If a character has no glyphs in any of the available fonts, Emacs
234normally displays it either as a hexadecimal code in a box or as a
235thin 1-pixel space. In addition to these two methods, Emacs can
236display these characters as empty box, as an acronym, or not display
237them at all. To change how these characters are displayed, customize
238the variable `glyphless-char-display-control'.
239
240On character terminals, these methods are used for characters that
241cannot be encoded by the `terminal-coding-system'.
242
243---
244*** New input methods for Farsi: farsi and farsi-translit.
245
246+++
247*** `nobreak-char-display' now also highlights Unicode hyphen chars
248(U+2010 and U+2011).
249
250---
251*** New translation of the Emacs Tutorial in Hebrew is available.
252Type `C-u C-h t' to choose it in case your language setup doesn't
253automatically select it.
254
255** Improved GTK integration
256+++
257*** GTK scroll-bars are now placed on the right by default.
258Use `set-scroll-bar-mode' to change this.
259+++
260*** GTK tool bars can have just text, just images or images and text.
261Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
262is taken from the desktop settings.
263---
264*** GTK tool bars can be placed on the left/right or top/bottom of the frame.
265The frame-parameter tool-bar-position controls this. It takes the values
266top, left, right or bottom. The Options => Show/Hide menu has entries
267for this.
268+++
269*** The colors for selected text (the `region' face) are taken from
270the GTK theme when Emacs is built with GTK.
271+++
272*** Emacs uses GTK tooltips by default if built with GTK. You can turn that
273off by customizing x-gtk-use-system-tooltips.
274
275+++
276** New basic faces `error', `warning', `success' are available to
277highlight strings that indicate failure, caution or successful operation.
278
279---
280** Lucid menus and dialogs can display antialiased fonts if Emacs is built
281with Xft. To change font, use the X resource font, for example:
282Emacs.pane.menubar.font: Courier-12
283
284+++
285** On graphical displays, the mode-line no longer ends in dashes.
286Also, the first dash (which does not indicate anything) is just
287displayed as a space.
288
289+++
290** Basic SELinux support has been added.
291This requires Emacs to be linked with libselinux at build time.
292
293+++
294*** Emacs preserves the SELinux file context when backing up, and
295optionally when copying files. To this end, copy-file has an extra
296optional argument, and backup-buffer and friends include the SELinux
297context in their return values.
298
299+++
300*** The new functions file-selinux-context and set-file-selinux-context
301get and set the SELinux context of a file.
302---
303*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
304for remote machines which support SELinux.
305
306** Changes for exiting Emacs
307+++
308*** The function kill-emacs is now run upon receipt of the signals
309SIGTERM and SIGHUP, and upon SIGINT in batch mode.
310+++
311*** kill-emacs-hook is now also run in batch mode.
312If you have code that adds something to kill-emacs-hook, you should
313consider if it is still appropriate to add it in the noninteractive case.
314
315** Scrolling changes
316+++
317*** New scrolling commands `scroll-up-command' and `scroll-down-command'
318(bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
319of buffer at first key-press (instead move to top/bottom of buffer)
320when `scroll-error-top-bottom' is non-nil.
321+++
322*** New variable `scroll-error-top-bottom' (see above).
323+++
324*** New scrolling commands `scroll-up-line' and `scroll-down-line'
325scroll a line instead of full screen.
326+++
327*** New property `scroll-command' should be set on a command's symbol to
328define it as a scroll command affected by `scroll-preserve-screen-position'.
329+++
330*** If you customize `scroll-conservatively' to a value greater than 100,
331Emacs will never recenter point in the window when it scrolls due to
332cursor motion commands or commands that move point (e.f., `M-g M-g').
333Previously, you needed to use `most-positive-fixnum' as the value of
334`scroll-conservatively' to achieve the same effect.
335---
336*** ``Aggressive'' scrolling now honors the scroll margins.
337If you customize `scroll-up-aggressively' or
338`scroll-down-aggressively' and move point off the window, Emacs now
339scrolls the window so as to avoid positioning point inside the scroll
340margin.
341
342** Trash changes
343+++
344*** `delete-by-moving-to-trash' now only affects commands that specify
345trashing. This avoids inadvertently trashing temporary files.
346+++
347*** Calling `delete-file' or `delete-directory' with a prefix argument
348now forces true deletion, regardless of `delete-by-moving-to-trash'.
349
350+++
351** New option `list-colors-sort' defines the color sort order
352for `list-colors-display'.
353
354** An Emacs Lisp package manager is now included.
355This is a convenient way to download and install additional packages,
356from a package repository at http://elpa.gnu.org.
357+++
358*** `M-x list-packages' shows a list of packages, which can be
359selected for installation.
360+++
361*** New command `describe-package', bound to `C-h P'.
362+++
363*** By default, all installed packages are loaded and activated
364automatically when Emacs starts up. To disable this, set
365`package-enable-at-startup' to nil. To change which packages are
366loaded, customize `package-load-list'.
367
368** Custom Themes
369+++
370*** `M-x customize-themes' lists Custom themes which can be enabled.
371+++
372*** New option `custom-theme-load-path' is the load path for themes.
373Emacs no longer looks for custom themes in `load-path'. The default
374is to search in `custom-theme-directory', followed by a built-in theme
375directory named "themes/" in `data-directory'.
376+++
377*** New option `custom-safe-themes' records known-safe theme files.
378If a theme is not in this list, Emacs queries before loading it, and
379offers to save the theme to `custom-safe-themes' automatically. By
380default, all themes included in Emacs are treated as safe.
381
382** The user option `remote-file-name-inhibit-cache' controls whether
383the remote file-name cache is used for read access.
384
385** File- and directory-local variable changes
386+++
387*** You can stop directory local vars from applying to subdirectories.
388Add an element (subdirs . nil) to the alist portion of any variables
389settings to indicate that the section should not apply to
390subdirectories.
391+++
392*** Directory local variables can apply to some file-less buffers.
393Affected modes include dired, vc-dir, and log-edit. For example,
394adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will
395turn on `whitespace-mode' for *vc-diff* buffers. Modes should call
396`hack-dir-local-variables-non-file-buffer' to support this.
397+++
398*** Using "mode: MINOR-MODE" to enable a minor mode is deprecated.
399Instead, use "eval: (minor-mode 1)".
400
401+++
402*** The variable `inhibit-first-line-modes-regexps' has been renamed
403to `inhibit-local-variables-regexps'. As the name suggests, it now
404applies to ALL file local variables, not just -*- mode ones.
405The associated `inhibit-first-line-modes-suffixes' has been renamed
406in the corresponding way.
407
408+++
409** The variable `focus-follows-mouse' now always defaults to nil.
410
411** New primitive `secure-hash' that supports many secure hash algorithms
412including md5, sha-1 and sha-2 (sha-224, sha-256, sha-384 and sha-512).
413The elisp implementation sha1.el is removed. Feature sha1 is provided
414by default.
415
416** Menu-bar changes
417---
418*** `menu-bar-select-buffer-function' lets you choose another operation
419instead of `switch-to-buffer' when selecting an item in the Buffers menu.
420
421** Window changes
422
423+++
424*** Resizing an Emacs frame now preserves proportional window sizes,
425modulo restrictions like window minimum sizes and fixed-size windows.
426
427*** The behavior of `display-buffer' is now customizable in detail.
428+++
429**** New option `display-buffer-base-action' specifies a list of
430user-determined display "actions" (functions and optional arguments
431for choosing the displaying window).
432
433This takes precedence over the default display action, which is
434specified by `display-buffer-fallback-action'.
435
436+++
437**** New option `display-buffer-alist' maps buffer name regexps to
438display actions, taking precedence over `display-buffer-base-action'.
439
440+++
441*** New option `window-combination-limit'.
442The new option `window-combination-limit' allows to return the space
443obtained for resizing or creating a window more reliably to the window
444from which such space was obtained.
445
446+++
447*** New option `window-combination-resize'.
448The new option `window-combination-resize' allows to split a window that
449otherwise cannot be split because it's too small by stealing space from
450other windows in the same combination. Subsequent resizing or deletion
451of the window will resize all windows in the same combination as well.
452
453+++
454*** New commands `maximize-window' and `minimize-window'.
455These maximize and minimize the size of a window within its frame.
456
457+++
458*** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'.
459These functions allow to navigate through the live buffers that have
460been shown in a specific window.
461
462** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
463This is handy for minibuffer-only frames, and is also used for the "mouse-1
464pops up *Messages*" feature, which can now easily be changed.
465
466\f
467* Editing Changes in Emacs 24.1
468
469** Search changes
470+++
471*** C-y in Isearch is now bound to isearch-yank-kill, instead of
472isearch-yank-line.
473+++
474*** M-y in Isearch is now bound to isearch-yank-pop, instead of
475isearch-yank-kill.
476+++
477*** M-s C-e in Isearch is now bound to isearch-yank-line.
478
479+++
480** New commands `count-words-region' and `count-words'.
481
482*** `count-lines-region' is now an alias for `count-words-region',
483bound to M-=, which shows the number of lines, words, and characters.
484
485+++
486** The default value of `backup-by-copying-when-mismatch' is now t.
487
488+++
489** The command `just-one-space' (M-SPC), if given a negative argument,
490also deletes newlines around point.
491
492** Deletion changes
493+++
494*** New option `delete-active-region'.
495If non-nil, [delete] and DEL delete the region if it is active and no
496prefix argument is given. If set to `kill', these commands kill
497instead.
498+++
499*** New command `delete-forward-char', bound to [delete].
500This is meant for interactive use, and obeys `delete-active-region'.
501The command `delete-char' does not obey `delete-active-region'.
502---
503*** `delete-backward-char' is now a Lisp function.
504Apart from obeying `delete-active-region', its behavior is unchanged.
505However, the byte compiler now warns if it is called from Lisp; you
506should use delete-char with a negative argument instead.
507---
508*** The option `mouse-region-delete-keys' has been deleted.
509
510** Selection changes.
511
512The default handling of clipboard and primary selections was changed
513to conform with modern X applications. In short, most commands for
514killing and yanking text now use the clipboard, while mouse commands
515use the primary selection.
516
517In the following, we provide a list of these changes, followed by a
518list of steps to get the old behavior back if you prefer that.
519
520+++
521*** `select-active-regions' now defaults to t.
522Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
523the kill ring. The selected text is put in the primary selection, if
524the system possesses a separate primary selection facility (e.g. X).
525
526+++
527**** `select-active-regions' also accepts a new value, `only'.
528This means to only set the primary selection for temporarily active
529regions (usually made by mouse-dragging or shift-selection);
530"ordinary" active regions, such as those made with C-SPC followed by
531point motion, do not alter the primary selection.
532
533---
534**** `mouse-drag-copy-region' now defaults to nil.
535
536+++
537*** mouse-2 is now bound to `mouse-yank-primary'.
538This pastes from the primary selection, ignoring the kill-ring.
539Previously, mouse-2 was bound to `mouse-yank-at-click'.
540
541+++
542*** `x-select-enable-clipboard' now defaults to t on all platforms.
543+++
544*** `x-select-enable-primary' now defaults to nil.
545Thus, commands that kill text or copy it to the kill-ring (such as
546M-w, C-w, and C-k) also use the clipboard---not the primary selection.
547
548---
549**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
550exactly equivalent to, respectively M-w, C-w, and C-y.
551
552---
553**** Note that on MS-Windows, `x-select-enable-clipboard' was already
554non-nil by default, as Windows does not support the primary selection
555between applications.
556
557---
558*** To return to the previous behavior, do the following:
559**** Change `select-active-regions' to nil.
560**** Change `mouse-drag-copy-region' to t.
561**** Change `x-select-enable-primary' to t (on X only).
562**** Change `x-select-enable-clipboard' to nil.
563**** Bind `mouse-yank-at-click' to mouse-2.
564
565+++
566*** Support for X cut buffers has been removed.
567
568*** X clipboard managers are now supported.
569To inhibit this, change `x-select-enable-clipboard-manager' to nil.
570
571+++
572** New command `rectangle-number-lines', bound to `C-x r N', numbers
573the lines in the current rectangle. With a prefix argument, this
574prompts for a number to count from and for a format string.
575
576+++
577** The default value of redisplay-dont-pause is now t
578This makes Emacs feel more responsive to editing commands that arrive
579at high rate, e.g. if you lean on some key, because stopping redisplay
580in the middle (when this variable is nil) forces more expensive
581updates later on, and Emacs appears to be unable to keep up.
582
583+++
584** The behavior of <TAB> for active regions in Text mode has changed.
585In Text and related modes, typing <TAB> (`indent-for-tab-command')
586when the region is active causes Emacs to indent all the lines in the
587region, aligning them with the line previous to the first line in the
588region (or with the left margin if there is no previous line).
589
590\f
591* Changes in Specialized Modes and Packages in Emacs 24.1
592
593+++
594** Archive Mode has basic support for browsing and updating 7z archives.
595
596---
597** BibTeX mode
598
599*** BibTeX mode now supports biblatex.
600Use the variable bibtex-dialect to select support for different BibTeX
601dialects. bibtex-entry-field-alist is now an obsolete alias for
602bibtex-BibTeX-entry-alist.
603
604*** New command `bibtex-search-entries' bound to C-c C-a.
605
606*** New `bibtex-entry-format' option `sort-fields', disabled by default.
607
608*** New variable `bibtex-search-entry-globally'.
609
610** Calendar, Diary, and Appt
611
612+++
613*** Diary entries can contain non-printing `comments'.
614See the variable `diary-comment-start'.
615
616+++
617*** Appointments can specify their individual warning times.
618See the variable `appt-warning-time-regexp'.
619
620---
621*** The function specified by `appt-disp-window-function' may be passed
622lists of arguments if multiple appointments are due at similar times.
623If you are using a custom function for this, you should update it.
624
625+++
626*** New function `diary-hebrew-birthday'.
627
628---
629*** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array'
630may no longer be nil, but must all be strings.
631
632---
633*** The obsolete (since Emacs 22.1) method of enabling the appt package
634by adding appt-make-list to diary-hook has been removed. Use appt-activate.
635
636---
637*** Some appt variables (obsolete since Emacs 22.1) have been removed:
638appt-issue-message (use the function appt-activate)
639appt-visible/appt-msg-window (use the variable appt-display-format)
640
641---
642*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
643view-diary-entries, list-diary-entries, show-all-diary-entries
644
645** Browse-url
646
647+++
648*** New option `browse-url-mailto-function' specifies how to handle "mailto:"s.
649
650---
651*** The default browser used by the package is now the "xdg-open" program,
652on platforms that support it. This calls your desktop's preferred browser.
653
654** CC Mode (C, C++, etc.)
655
656*** New feature to "guess" the style in an existing buffer.
657
658** comint and modes derived from it use the generic completion code.
659
660** Compilation mode
661---
662*** Compilation mode can be used without font-lock-mode.
663`compilation-parse-errors-function' is now obsolete.
664
665*** `compilation-filter-start' is let-bound to the start of the text
666inserted by the compilation filter function, when calling
667compilation-filter-hook.
668
669*** `compilation-error-screen-columns' and `compilation-first-column'
670are obeyed in the editing buffer. So programming language modes can
671set them, whereas previously only the value in the *compilation* buffer
672was used.
673
674** Customize
675
676+++
677*** Customize buffers now contain a search field.
678The search is performed using `customize-apropos'.
679To turn off the search field, set custom-search-field to nil.
680
681+++
682*** Custom options now start out hidden if at their default values.
683Use the arrow to the left of the option name to toggle visibility.
684
685---
686*** custom-buffer-sort-alphabetically now defaults to t.
687
688+++
689*** The color widget now has a "Choose" button, which allows you to
690choose a color via list-colors-display.
691
692** D-Bus
693
694*** It is possible now, to access alternative buses than the default
695system or session bus.
696
697*** dbus-register-{service,method,property}
698The -method and -property functions do not automatically register
699names anymore.
700
701The new function dbus-register-service registers a service known name
702on a D-Bus without simultaneously registering a property or a method.
703
704** Dired-x
705---
706*** dired-jump and dired-jump-other-window called with a prefix argument
707read a file name from the minibuffer instead of using buffer-file-name.
708
709+++
710*** The `dired local variables' feature provided by Dired-x is obsolete.
711The standard directory local variables feature replaces it.
712
713** ERC changes
714
715---
716*** New options `erc-autojoin-timing' and `erc-autojoin-delay',
717controlling attempts to autojoin a channel.
718
719*** New variable `erc-coding-system-precedence': If we use `undecided'
720as the server coding system, this variable will then be consulted.
721The default is to decode strings that can be decoded as utf-8 as
722utf-8, and do the normal `undecided' decoding for the rest.
723
724** Eshell changes
725
726---
727*** The default value of `eshell-directory-name' has changed
728to be an "eshell" directory in `user-emacs-directory'.
729The old "~/.eshell/" directory is still used if it exists, though.
730
731** gdb-mi
732+++
733*** The GDB User Interface has been migrated to GDB Machine Interface.
734It now supports multithread non-stop debugging and simultaneous
735debugging of several threads.
736
737** Image mode
738
739+++
740*** RET (`image-toggle-animation') toggles animation, if applicable.
741Animation plays once, unless the option `image-animate-loop' is non-nil.
742
743** Info
744
745*** New command `info-display-manual' displays an Info manual
746specified by its name. If that manual is already visited in some Info
747buffer within the current session, the command will display that
748buffer. Otherwise, it will load the manual and display it. This is
749handy if you have many manuals in many Info buffers, and don't
750remember the name of the buffer visiting the manual you want to
751consult.
752
753+++
754*** `e' is now bound to `end-of-buffer' rather than to `Info-edit'.
755This is for compatibility with the stand-alone Info reader program,
756and also because `Info-edit' is a rarely used command that is disabled
757by default.
758
759+++
760** MH-E has been upgraded to MH-E version 8.3.1.
761See MH-E-NEWS for details.
762
763---
764** Modula-2 mode provides auto-indentation.
765
766---
767** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
768
769---
770** Prolog mode has been completely revamped, with lots of additional
771functionality such as more intelligent indentation, electricity, support for
772more variants, including Mercury, and a lot more.
773
774** Rmail
775
776+++
777*** The command `rmail-epa-decrypt' decrypts OpenPGP data
778in the Rmail incoming message.
779
780---
781*** The variable `rmail-message-filter' no longer has any effect.
782This change was made in Emacs 23.1 but was not advertised at the time.
783Try using `rmail-show-message-hook' instead.
784
785** Shell mode
786+++
787*** Shell mode uses pcomplete rules, with the standard completion UI.
788+++
789*** The `shell' command prompts for the shell path name if the default
790directory is a remote file name and neither the environment variable
791$ESHELL nor the variable `explicit-shell-file-name' is set.
792
793---
794** SQL mode
795
796---
797*** New options `sql-port', `sql-connection-alist', `sql-send-terminator',
798and `sql-oracle-scan-on'.
799
800---
801*** New custom variables control prompting for login parameters.
802Each supported product has a custom variable `sql-*-login-params',
803which is a list of the parameters to be prompted for before a
804connection is established.
805
806---
807*** The command `sql-product-interactive' now takes a prefix argument,
808which causes it to prompt for an SQL product.
809
810---
811*** Product-specific SQL interactive commands now take prefix arguments.
812These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.),
813given a prefix argument, prompt for a name for the SQL interactive
814buffer. This reduces the need for calling `sql-rename-buffer'.
815
816---
817*** SQL interactive modes suppress command continuation prompts, and
818replace tabs with spaces. The first change impacts multiple line SQL
819statements entered with C-j between each line, statements yanked into
820the buffer and statements sent with `sql-send-*' functions. The
821second prevents the MySQL and Postgres interpreters from listing
822object name completions when sent text via `sql-send-*' functions.
823
824---
825*** New command `sql-connect' starts a predefined SQLi session,
826using the login parameters from `sql-connection-alist'.
827
828---
829*** New "Save Connection" menu item in SQLi buffers.
830This gathers the login params specified for the SQLi session, if it
831was not started by a connection, and saves them as a new connection.
832
833---
834*** New commands for listing database objects and details:
835sql-list-all and sql-list-table.
836
837---
838*** An API for manipulating SQL product definitions has been added.
839
840** TeX modes
841
842+++
843*** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
844
845** Tramp
846---
847*** There exists a new inline access method "ksu" (kerberized su).
848---
849*** The following access methods are discontinued: "ssh1_old",
850"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
851---
852*** The option `ange-ftp-binary-file-name-regexp' has changed its
853default value to "".
854
855** `url-queue-retrieve' downloads web pages asynchronously, but allow
856controlling the degree of parallelism.
857
858** VC and related modes
859
860+++
861*** Support for pulling on distributed version control systems.
862`C-x v +' (`vc-pull') runs a "pull" operation, if it is supported, to
863update the current branch and working tree. A prefix argument means
864to prompt the user for specifics, e.g. a pull location.
865
866**** `vc-update' is now an alias for `vc-pull'.
867
868**** Currently supported by Bzr, Git, and Mercurial.
869
870+++
871*** Support for merging on distributed version control systems.
872The vc-merge command now runs a "merge" operation, if it is supported,
873to merge changes from another branch into the current one. It prompts
874for specifics, e.g. a merge source.
875
876**** Currently supported for Bzr, Git, and Mercurial.
877
878+++
879*** New option `vc-revert-show-diff' controls whether `vc-revert'
880shows a diff while querying the user. It defaults to t.
881
882+++
883*** Log entries in some Log View buffers can be toggled to display a
884longer description by typing RET (log-view-toggle-entry-display).
885In the Log View buffers made by `C-x v L' (vc-print-root-log), you can
886use this to display the full log entry for the revision at point.
887
888**** Currently supported for Bzr, Git, and Mercurial.
889
890**** Packages using Log View mode can enable this functionality by
891binding `log-view-expanded-log-entry-function' to a suitable function.
892
893+++
894*** New command `vc-ediff' allows visual comparison of two revisions
895of a file similar to `vc-diff', but using ediff backend.
896
897+++
898*** The option `vc-initial-comment' was removed in Emacs 23.2, but
899this was not advertised at the time.
900
901+++
902*** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'.
903Since Emacs 23, it has done the same thing as `toggle-read-only', but
904this was not advertised at the time.
905
906** Obsolete modes
907
908---
909*** abbrevlist.el
910
911---
912*** erc-hecomplete.el (use erc-pcomplete.el instead)
913
914*** partial-completion-mode (complete.el) is obsolete.
915You can get a comparable behavior with:
916(setq completion-styles '(partial-completion initials))
917(setq completion-pcm-complete-word-inserts-delimiters t)
918
919---
920*** pc-mode.el is obsolete (CUA mode is much more comprehensive).
921
922*** pgg is obsolete (use EasyPG instead)
923
924---
925*** sregex.el is obsolete, since rx.el is a strict superset.
926
927---
928*** s-region.el and pc-select.el are obsolete.
929They are superseded by shift-select-mode, enabled by default since 23.1.
930
931+++
932*** vc-mcvs.el is obsolete (for lack of a maintainer)
933
934** Miscellaneous
935
936+++
937*** The Landmark game is now invoked with `landmark', not `lm'.
938
939---
940*** In `ido-file-completion-map', C-v is no longer bound to ido-toggle-vc.
941(This interfered with cua-mode.)
942
943+++
944*** f90.el has some support for Fortran 2008 syntax.
945
946---
947*** `copyright-fix-years' can optionally convert consecutive years to ranges.
948
949+++
950*** New command `nato-region' converts text to NATO phonetic alphabet.
951
952\f
953* New Modes and Packages in Emacs 24.1
954
955+++
956** Occur Edit mode applies edits made in *Occur* buffers to the
957original buffers. It is bound to "e" in Occur mode.
958
959** New global minor mode electric-pair-mode.
960When enabled, typing an open parenthesis automatically inserts the
961matching closing one.
962
963** New global minor mode electric-indent-mode.
964When enabled, typing certain characters triggers reindentation.
965
966** New global minor mode electric-layout-mode.
967When enabled, typing certain characters automatically inserts newlines.
968
969** tabulated-list.el provides a generic major mode for tabulated data,
970from which other modes can be derived.
971
972** pcase.el provides the ML-style pattern matching macro `pcase'.
973
974** secrets.el is an implementation of the Secret Service API, an
975interface to password managers like GNOME Keyring or KDE Wallet. The
976Secret Service API requires D-Bus for communication. The command
977`secrets-show-secrets' offers a buffer with a visualization of the
978secrets.
979
980** notifications.el provides an implementation of the Desktop
981Notifications API. It requires D-Bus for communication.
982
983** soap-client.el supports access to SOAP web services from Emacs.
984soap-inspect.el is an interactive inspector for SOAP WSDL structures.
985
986---
987** New generic mode, xmodmap-generic-mode, for xmodmap files.
988
989---
990** New emacs-lock.el package.
991(The previous version has been moved to obsolete/old-emacs-lock.el.)
992Now, there is a proper minor mode `emacs-lock-mode'.
993Protection against exiting Emacs and killing the buffer can be set
994separately. The mechanism for automatically turning off protection
995for buffers with dead inferior processes has been generalized.
996
997\f
998* Incompatible Lisp Changes in Emacs 24.1
999
1000---
1001** `char-direction-table' and the associated function `char-direction'
1002were deleted. They were buggy and inferior to the new support of
1003bidirectional editing introduced in Emacs 24. If you need the
1004bidirectional properties of a character, use `get-char-code-property'
1005with the last argument `bidi-class'.
1006
1007+++
1008** `copy-directory' now copies the source directory as a subdirectory
1009of the target directory, if the latter is an existing directory. The
1010new optional arg COPY-CONTENTS, if non-nil, makes the function copy
1011the contents directly into a pre-existing target directory.
1012
1013** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
1014passes it to the mail user agent function. This argument specifies an
1015action for returning to the caller after finishing with the mail.
1016This is currently used by Rmail to delete a mail window.
1017
1018** For mouse click input events in the text area, the Y pixel
1019coordinate in the POSITION list now counts from the top of the text
1020area, excluding any header line. Previously, it counted from the top
1021of the header line.
1022
1023---
1024** Support for "old-style" backquotes, which have been obsolete for
1025more than 10 years, has been further reduced. Now a backquote not
1026followed by a space is always treated as a "new-style" backquote.
1027Please consider completely removing all "old-style" backquotes from
1028your code as a matter of some urgency. If your code uses backquotes
1029as documented in the Elisp manual, and compiles without warning, then
1030you have nothing to do in this regard. Code not following the
1031appropriate conventions may fail to compile. The most common cause of
1032trouble seems to be an old-style backquote followed by a newline.
1033
1034---
1035** view-buffer now treats special mode-class in the same way that
1036view-file has since Emacs 22 (ie, it won't enable View mode if the
1037major-mode is special).
1038
1039+++
1040** Passing a nil argument to a minor mode defined by define-minor-mode
1041now turns the mode ON unconditionally. This is so that you can write, e.g.
1042 (add-hook 'text-mode-hook 'foo-minor-mode)
1043to enable foo-minor-mode in Text mode buffers, thus removing the need
1044for `turn-on-foo-minor-mode' style functions.
1045
1046+++
1047** During startup, Emacs no longer adds entries for `menu-bar-lines'
1048and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
1049With these alist entries omitted, `make-frame' checks the value of the
1050variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
1051a menu-bar or tool-bar, respectively. If the alist entries are added,
1052they override the value of `menu-bar-mode'/`tool-bar-mode'.
1053
1054+++
1055** Regions created by mouse dragging are now normal active regions,
1056similar to the ones created by shift-selection. In previous Emacs
1057versions, these regions were delineated by `mouse-drag-overlay', which
1058has now been removed.
1059
1060+++
1061** The fourth argument of filter-buffer-substring, which says to remove
1062text properties from the final result, has been removed.
1063Eg simply pass the result through substring-no-properties if you need this.
1064
1065---
1066** cl.el no longer provides `cl-19'.
1067
1068** The menu bar bindings's caches are not used any more.
1069Use (where-is-internal <def> nil t) instead.
1070
1071+++
1072** The following obsolete (mostly since at least 21.1) functions and aliases
1073have been removed (the appropriate new function is given in parentheses):
1074comint-kill-output (comint-delete-output),
1075decompose-composite-char (char-to-string),
1076outline-visible (outline-invisible-p),
1077internal-find-face (facep), internal-get-face (facep and check-face),
1078frame-update-faces (not needed),
1079frame-update-face-colors (frame-set-background-mode),
1080x-frob-font-weight and x-frob-font-slant (appropriate make-face-* function),
1081x-make-font-bold and x-make-font-demibold (make-face-bold),
1082x-make-font-italic and x-make-font-oblique (make-face-italic),
1083x-make-font-bold-italic (make-face-bold-italic),
1084x-make-font-unbold (make-face-unbold),
1085x-make-font-unitalic (make-face-unitalic),
1086mldrag-drag-mode-line (mouse-drag-mode-line),
1087mldrag-drag-vertical-line (mouse-drag-vertical-line),
1088iswitchb-default-keybindings (iswitchb-mode), char-bytes (== 1),
1089isearch-return-char (isearch-printing-char), make-local-hook (not needed)
1090
1091+++
1092** The following obsolete (mostly since at least 21.1) variables and varaliases
1093have been removed (the appropriate new variable is given in parentheses):
1094checkdoc-minor-keymap (checkdoc-minor-mode-map),
1095vc-header-alist (vc-BACKEND-header), directory-sep-char (== ?/)
1096font-lock-defaults-alist (font-lock-defaults), and e (float-e).
1097
1098---
1099** The following obsolete files were removed:
1100sc.el, x-menu.el, rnews.el, rnewspost.el
1101
1102** FIXME finder-inf.el changes.
1103
1104\f
1105* Lisp changes in Emacs 24.1
1106
1107+++
1108** Code can now use lexical scoping by default instead of dynamic scoping.
1109The `lexical-binding' variable lets code use lexical scoping for local
1110variables. It is typically set via a file-local variable in the first
1111line of the file, in which case it applies to all the code in that file.
1112+++
1113*** `eval' takes a new optional argument `lexical' to choose the new lexical
1114binding instead of the old dynamic binding mode.
1115+++
1116*** Lexically scoped interpreted functions are represented with a new form
1117of function value which looks like (closure ENV ARGS &rest BODY).
1118
1119*** New macro `letrec' to define recursive local functions.
1120+++
1121*** New function `special-variable-p' to check whether a variable is
1122declared as dynamically bound.
1123
1124+++
1125** An Emacs Lisp testing tool is now included.
1126Emacs Lisp developers can use this tool to write automated tests for
1127their code. See the ERT info manual for details.
1128
1129** Changes for bidirectional display and editing
1130
1131+++
1132*** New function `current-bidi-paragraph-direction'.
1133This returns the actual value of base direction of the paragraph at
1134point.
1135
1136+++
1137*** New function `bidi-string-mark-left-to-right'.
1138Given a string containing characters from right-to-left (RTL) scripts,
1139this function returns another string which can be safely inserted into
1140a buffer, such that any following text will be always displayed to the
1141right of that string. (This works by appending the Unicode
1142"LEFT-TO-RIGHT MARK" character when the argument string might need that.)
1143
1144This is useful when the buffer has overall left-to-right (LTR)
1145paragraph direction and you need to insert a string whose contents and
1146directionality are not known in advance, without disrupting the layout
1147of the line.
1148
1149** Window changes
1150+++
1151*** Window tree functions are accessible in Elisp.
1152Functions are provided to return the parent, siblings or child windows
1153of any window including internal windows (windows not associated with a
1154buffer) in the window tree.
1155+++
1156**** New function `window-valid-p' gives non-nil for live and internal
1157windows.
1158+++
1159**** Window manipulation can deal with internal windows.
1160Many window handling functions like `split-window', `delete-window', or
1161`delete-other-windows' as well as the window resizing functions can now
1162act on any window including internal ones.
1163+++
1164*** window-total-height/-width vs window-body-height/-width.
1165The function `window-height' has been renamed to `window-total-height'
1166and `window-width' has been renamed to `window-body-width'. The old
1167names are provided as aliases. Two new functions `window-total-width'
1168and `window-body-height' are provided.
1169+++
1170*** Window parameters specific to window handling functions.
1171For each window you can specify a parameter to override the default
1172behavior of a number of functions like `split-window', `delete-window'
1173and `delete-other-windows'. The variable `ignore-window-parameters'
1174allows to ignore processing such parameters.
1175+++
1176*** New semantics of third argument of `split-window'.
1177The third argument of `split-window' has been renamed to SIDE and can be
1178set to any of the values 'below, 'right, 'above, or 'left to make the
1179new window appear on the corresponding side of the window that shall be
1180split. Any other value of SIDE will cause `split-window' to split the
1181window into two side-by-side windows as before.
1182+++
1183*** Window resizing functions.
1184A new standard function for resizing windows called `window-resize' has
1185been introduced. This and all other functions for resizing windows no
1186longer delete any windows when they become too small.
1187+++
1188*** Deleting the selected window now selects the most recently selected
1189live window on that frame instead.
1190+++
1191*** `adjust-window-trailing-edge' adjustments.
1192`adjust-window-trailing-edge' can now deal with fixed-size windows and
1193is able to resize other windows if a window adjacent to the trailing
1194edge cannot be shrunk any more. This makes its behavior more similar to
1195that of Emacs 21 without compromising, however, its inability to delete
1196windows which was introduced in Emacs 22.
1197+++
1198*** Window-local buffer lists.
1199Windows now have local buffer lists. This means that removing a buffer
1200from display in a window will preferably show the buffer previously
1201shown in that window with its previous window-start and window-point
1202positions. This also means that the same buffer may be automatically
1203shown twice even if it already appears in another window.
1204+++
1205*** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW,
1206which if non-nil requires the buffer to be displayed in the currently
1207selected window, signaling an error otherwise. If nil, another window
1208can be used, e.g. if the selected one is strongly dedicated.
1209+++
1210*** `split-window-vertically' and `split-window-horizontally' renamed
1211to `split-window-below' and `split-window-right' respectively.
1212The old names are kept as aliases.
1213+++
1214*** Display actions
1215
1216**** The second arg to `display-buffer' and `pop-to-buffer' is now
1217named ACTION, and takes a display action of the same form as
1218`display-buffer-base-action' (see Changes, above). A non-nil,
1219non-list value is treated specially, as the old meaning.
1220
1221**** New variable `display-buffer-overriding-action'.
1222
1223**** The procedure of `display-buffer' etc. to choose a window is
1224determined by combining `display-buffer-overriding-action',
1225`display-buffer-alist', the ACTION arg, `display-buffer-base-action',
1226and `display-buffer-fallback-action'. The second and fourth of these
1227are user-customizable variables.
1228
1229See the docstring of `display-buffer' for details.
1230
1231+++
1232*** New behavior of `quit-window'.
1233The behavior of `quit-window' has been changed in order to restore the
1234state before the last buffer display operation in that window.
1235
1236+++
1237*** The new option `frame-auto-hide-function' lets you choose between
1238iconifying or deleting a frame when burying a buffer shown in a dedicated
1239frame or quitting a window showing a buffer in a frame of its own.
1240
1241+++
1242*** New functions `window-state-get' and `window-state-put'.
1243These functions allow to save and restore the state of an arbitrary
1244frame or window as an Elisp object.
1245
1246** Completion
1247
1248*** New variable completion-extra-properties used to specify extra properties
1249of the current completion:
1250- :annotate-function, same as the old completion-annotate-function.
1251- :exit-function, function to call after completion took place.
1252
1253*** Functions on completion-at-point-functions can return any of the properties
1254valid for completion-extra-properties.
1255
1256*** completion-annotate-function is obsolete.
1257
1258*** New `metadata' method for completion tables. The metadata thus returned
1259can specify various details of the data returned by `all-completions':
1260- `category' is the kind of objects returned (e.g., `buffer', `file', ...),
1261 used to select a style in completion-category-overrides.
1262- `annotation-function' to add annotations in *Completions*.
1263- `display-sort-function' to specify how to sort entries in *Completions*.
1264- `cycle-sort-function' to specify how to sort entries when cycling.
1265
1266*** minibuffer-local-filename-must-match-map is not used any more.
1267Instead, the bindings in minibuffer-local-filename-completion-map are
1268combined with minibuffer-local-must-match-map.
1269
1270*** New variable `completing-read-function' allows overriding the
1271behavior of `completing-read'.
1272
1273+++
1274** `glyphless-char-display' can now distinguish between graphical and
1275text terminal display, via a char-table entry that is a cons cell.
1276
1277** `open-network-stream' can now be used to open an encrypted stream.
1278It now accepts an optional `:type' parameter for initiating a TLS
1279connection, directly or via STARTTLS. To do STARTTLS, additional
1280parameters (`:end-of-command', `:success', `:capabilities-command')
1281must also be supplied.
1282
1283+++
1284** pre/post-command-hook are not reset to nil upon error.
1285Instead, the offending function is removed.
1286
1287** New hook types
1288
1289+++
1290*** New function `run-hook-wrapped' for running an abnormal hook by
1291passing the hook functions as arguments to a "wrapping" function.
1292Like `run-hook-with-args-until-success', it stops at the first
1293non-nil return value.
1294
1295+++
1296*** New macro `with-wrapper-hook' for running an abnormal hook as a
1297set of "wrapping" filters, similar to around advice.
1298(A version of this macro was actually added in Emacs 23.2 but was not
1299advertised at the time.)
1300
1301+++
1302** The macros `condition-case-no-debug' and `with-demoted-errors' were
1303added in Emacs 23.1, but not advertised.
1304
1305+++
1306** The new function `server-eval-at' allows evaluation of Lisp forms on
1307named Emacs server instances, using TCP sockets.
1308
1309+++
1310** `call-process' and `call-process-region' allow a `(:file "file")' spec
1311to redirect STDOUT to a file.
1312
1313---
1314** Variable `stack-trace-on-error' removed.
1315Also the debugger can now "continue" from an error, which means it will jump
1316to the error handler as if the debugger had not been invoked instead of
1317jumping all the way to the top-level.
1318
1319+++
1320** The function format-time-string now supports the %N directive, for
1321higher-resolution time stamps.
1322
1323+++
1324** New function `read-char-choice' reads a restricted set of characters,
1325discarding any inputs not inside the set.
1326
1327+++
1328** `image-library-alist' is renamed to `dynamic-library-alist'.
1329The variable is now used to load all kind of supported dynamic libraries,
1330not just image libraries. The previous name is still available as an
1331obsolete alias.
1332
1333** New variable `syntax-propertize-function'.
1334This replaces `font-lock-syntactic-keywords' which is now obsolete.
1335This allows syntax-table properties to be set independently from font-lock:
1336just call syntax-propertize to make sure the text is propertized.
1337Together with this new variable come a new hook
1338syntax-propertize-extend-region-functions, as well as two helper functions:
1339syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
1340as-is; and syntax-propertize-rules which provides a new way to specify
1341syntactic rules.
1342
1343+++
1344** New hook post-self-insert-hook run at the end of self-insert-command.
1345
1346+++
1347** Syntax tables support a new "comment style c" additionally to style b.
1348
1349---
1350** frame-local variables cannot be let-bound any more.
1351
1352** Major and minor mode changes
1353+++
1354*** `prog-mode' is a new major mode from which programming modes
1355should be derived.
1356
1357+++
1358**** `prog-mode-hook' can be used to enable features for programming
1359modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable
1360on-the-fly spell checking for comments and strings.
1361
1362+++
1363*** New hook `change-major-mode-after-body-hook', run by
1364`run-mode-hooks' just before any other mode hooks.
1365
1366+++
1367*** Enabled globalized minor modes can be disabled in specific major modes.
1368If the global mode is global-FOO-mode, then run (FOO-mode -1) in the
1369major mode's hook, where FOO-mode toggles the mode on a per-buffer basis.
1370
1371+++
1372*** `define-minor-mode' accepts a new keyword :variable.
1373
1374+++
1375** `delete-file' and `delete-directory' now accept optional arg TRASH.
1376Trashing is performed if TRASH and `delete-by-moving-to-trash' are
1377both non-nil. Interactively, TRASH defaults to t, unless a prefix
1378argument is supplied (see Trash changes, above).
1379
1380---
1381** `facemenu-read-color' is now an alias for `read-color'.
1382
1383+++
1384** The command `read-color' now requires a match for a color name
1385or RGB triplet, instead of signaling an error if the user provides
1386invalid input.
1387
1388+++
1389** Tool-bars can display separators.
1390Tool-bar separators are handled like menu separators in menu-bar maps,
1391i.e. via menu entries of the form `(menu-item "--")'.
1392
1393** Image API
1394
1395+++
1396*** Animated images support (currently animated gifs only).
1397
1398+++
1399**** `image-animated-p' returns non-nil if an image can be animated.
1400
1401+++
1402**** `image-animate' animates a supplied image spec.
1403
1404+++
1405**** `image-animate-timer' returns the timer object for an image that
1406is being animated.
1407
1408---
1409*** `image-extension-data' has been renamed to `image-metadata'.
1410The old name is an obsolete alias to the new one.
1411
1412+++
1413*** Image mode can view any image type that ImageMagick supports.
1414This requires Emacs to be built with ImageMagick support.
1415Then the function `imagemagick-types' returns a list of image file
1416extensions that your installation of ImageMagick supports. The
1417function `imagemagick-register-types' enables ImageMagick support for
1418these image types, minus those listed in `imagemagick-types-inhibit'.
1419Visiting one of these file types will then use Image mode.
1420
1421---
1422*** New commands to resize and rotate images in Image mode.
1423These require Emacs to be built with ImageMagick support.
1424image-transform-fit-to-height, image-transform-fit-to-width,
1425image-transform-set-rotation, image-transform-set-scale.
1426
1427** XML and HTML parsing
1428If Emacs is compiled with libxml2 support, there are two new functions:
1429`libxml-parse-html-region' (which parses "real world" HTML) and
1430`libxml-parse-xml-region' (which parses XML). Both return an Emacs
1431Lisp parse tree.
1432
1433FIXME: These should be front-ended by xml.el.
1434
1435** GnuTLS
1436
1437*** New library `gnutls.el'.
1438This requires Emacs to have been built with GnuTLS support.
1439The main functions are `open-gnutls-stream' and `gnutls-negotiate'.
1440It's easiest to use these functions through `open-network-stream'
1441because it can upgrade connections through STARTTLS opportunistically
1442or use plain SSL, depending on your needs. For debugging, set
1443`gnutls-log-level' greater than 0.
1444
1445** Isearch
1446
1447---
1448*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
1449
1450+++
1451** Progress reporters can now "spin".
1452The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
1453now be nil, or omitted. This makes a "non-numeric" reporter. Each
1454time you call `progress-reporter-update' on that progress reporter,
1455with a nil or omitted VALUE argument, the reporter message is
1456displayed with a "spinning bar".
1457
1458+++
1459** New variable `revert-buffer-in-progress-p' is true while a buffer is
1460being reverted, even if the buffer has a local `revert-buffer-function'.
1461
1462---
1463** New variables `delayed-warnings-list' and `delayed-warnings-hook'.
1464If delayed-warnings-list is non-nil, the command loop calls
1465delayed-warnings-hook after post-command-hook. At present, this is
1466only used by Emacs on some platforms to display warnings during
1467startup, which might otherwise not be noticed. This uses the functions
1468display-delayed-warnings and collapse-delayed-warnings.
1469
1470
1471+++
1472** `set-auto-mode' now respects mode: local variables at the end of files,
1473as well as those in the -*- line.
1474
1475---
1476** rx.el has a new `group-n' construct for explicitly numbered groups.
1477
1478+++
1479** New function `make-composed-keymap' that constructs a new keymap
1480from multiple input maps. You can use this to make a keymap that
1481inherits from multiple maps, eg:
1482 (set-keymap-parent newmap (make-composed-keymap othermap parent))
1483
1484+++
1485** Set `debug-on-event' to make Emacs enter the debugger e.g. on receipt
1486of SIGUSR1. This can be useful when `inhibit-quit' is set.
1487
1488+++
1489** New reader macro ## that stands for the empty symbol.
1490This means that the empty symbol can now be read back. Also, #: by itself
1491(when not immediately followed by a possible symbol character) stands for
1492an empty uninterned symbol.
1493
1494+++
1495** New math functions `isnan', `copysign', `frexp', `ldexp'.
1496
1497** Obsolete functions and variables
1498
1499---
1500*** `tooltip-use-echo-area' is obsolete.
1501Rather than setting this to t, disable Tooltip mode instead.
1502
1503+++
1504*** buffer-substring-filters is obsolete.
1505Use `filter-buffer-substring-functions' instead.
1506
1507---
1508*** `byte-compile-disable-print-circle' is obsolete.
1509
1510---
1511*** `deferred-action-list' and `deferred-action-function' are obsolete.
1512Use `post-command-hook' instead.
1513
1514+++
1515*** `font-lock-maximum-size' is obsolete.
1516
1517\f
1518* Changes in Emacs 24.1 on non-free operating systems
1519
1520---
1521** On MS Windows, Emacs warns when using the obsolete init file _emacs,
1522and also when HOME is set to C:\ by default.
1523
1524** New configure.bat options
1525
1526+++
1527*** --enable-checking builds Emacs with extra runtime checks.
1528
1529+++
1530*** --distfiles specifies files to be included in binary distribution.
1531
1532+++
1533*** --without-gnutls disables automatic GnuTLS detection.
1534
1535+++
1536*** --lib for general library linkage, works with the USER_LIBS build variable.
1537
1538+++
1539** New make target `dist' to create binary distribution for MS Windows.
1540
1541---
1542** The Lisp function `w32-default-color-map' is now obsolete.
1543(It is only used internally in the Emacs C code.)
1544
1545+++
1546** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but
1547reappear on mouse-over. (Requires OS X 10.6 or later.)
1548
1549\f
1550----------------------------------------------------------------------
1551This file is part of GNU Emacs.
1552
1553GNU Emacs is free software: you can redistribute it and/or modify
1554it under the terms of the GNU General Public License as published by
1555the Free Software Foundation, either version 3 of the License, or
1556(at your option) any later version.
1557
1558GNU Emacs is distributed in the hope that it will be useful,
1559but WITHOUT ANY WARRANTY; without even the implied warranty of
1560MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1561GNU General Public License for more details.
1562
1563You should have received a copy of the GNU General Public License
1564along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
1565
1566\f
1567Local variables:
1568mode: outline
1569paragraph-separate: "[ \f]*$"
1570end: