Move SES NEWS entry here from emacs-24 and expand it
[bpt/emacs.git] / etc / NEWS
1 GNU Emacs NEWS -- history of user-visible changes.
2
3 Copyright (C) 2010-2012 Free Software Foundation, Inc.
4 See the end of the file for license conditions.
5
6 Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
7 If possible, use M-x report-emacs-bug.
8
9 This file is about changes in Emacs version 24.
10
11 See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
12 and NEWS.1-17 for changes in older Emacs versions.
13
14 You can narrow news to a specific version by calling `view-emacs-news'
15 with a prefix argument or by typing C-u C-h C-n.
16
17 Temporary note:
18 +++ indicates that the appropriate manual has already been updated.
19 --- means no change in the manuals is called for.
20 When you add a new item, please add it without either +++ or ---
21 so we will look at it and add it to the manual.
22
23 \f
24 * Installation Changes in Emacs 24.4
25 * Startup Changes in Emacs 24.4
26 * Changes in Emacs 24.4
27 * Editing Changes in Emacs 24.4
28
29 \f
30 * Changes in Specialized Modes and Packages in Emacs 24.4
31
32 +++
33 ** New function `ses-rename-cell' to give SES cells arbitrary names.
34
35 \f
36 * New Modes and Packages in Emacs 24.4
37 ** New nadvice.el package offering lighter-weight advice facilities.
38 It is layered as:
39 - add-function/remove-function which can be used to add/remove code on any
40 function-carrying place, such as process-filters or `<foo>-function' hooks.
41 - advice-add/advice-remove to add/remove a piece of advice on a named function,
42 much like `defadvice' does.
43
44 * Incompatible Lisp Changes in Emacs 24.4
45
46 ** `dolist' in lexical-binding mode does not bind VAR in RESULT any more.
47 VAR was bound to nil which was not tremendously useful and just lead to
48 spurious warnings about an unused var.
49
50 * Lisp changes in Emacs 24.4
51
52 ** New function special-form-p.
53 ** Docstrings can be made dynamic by adding a `dynamic-docstring-function'
54 text-property on the first char.
55
56 ** The `defalias-fset-function' property lets you catch calls to defalias
57 and redirect them to your own function instead of `fset'.
58
59 * Changes in Emacs 24.4 on non-free operating systems
60
61 \f
62 * Installation Changes in Emacs 24.3
63
64 ---
65 ** The default toolkit has been changed to Gtk+ version 3.
66 If you don't pass --with-x-toolkit to configure or if you pass
67 --with-x-toolkit=gtk or --with-x-toolkit=yes, configure will try to build
68 with Gtk+ version 3, and if that fails, try Gtk+ version 2.
69 You can explicitly require a specific version by passing
70 --with-x-toolkit=gtk2 or --with-x-toolkit=gtk3 to configure.
71
72 ---
73 ** New configure option '--without-all' to disable additional features.
74 This disables most of the features that are normally enabled by default.
75
76 ---
77 ** New configure option '--enable-link-time-optimization' to utilize
78 an appropriate feature provided by GCC since version 4.5.0.
79
80 ---
81 ** New configure option '--enable-gcc-warnings', intended for developers.
82 If building with GCC, this enables compile-time checks that warn about
83 possibly-questionable C code. On a recent GNU system there should be
84 no warnings; on older and on non-GNU systems the generated warnings
85 may be useful.
86
87 ---
88 ** The configure option '--enable-use-lisp-union-type' has been
89 renamed to '--enable-check-lisp-object-type', as the resulting
90 Lisp_Object type no longer uses a union to implement the compile time
91 check that this option enables.
92
93 ---
94 ** The configure option '--disable-maintainer-mode' has been removed,
95 as it was confusingly-named and rarely useful.
96
97 ---
98 ** You can use `NO_BIN_LINK=t make install' to prevent the installation
99 overwriting "emacs" in the installation bin/ directory with a link
100 to emacs-VERSION.
101
102 ---
103 ** The configure options `--program-prefix', `--program-suffix', and
104 `--program-transform-name' apply to more than just the installed
105 binaries. Now they also affect the man pages, icons, and the
106 etc/emacs.desktop file; but not the info pages, since this would break
107 links between the various manuals.
108
109 ---
110 ** Emacs uses libtinfo in preference to libncurses, if available.
111
112 ---
113 ** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and
114 /usr/pkg/lib to the linker search path. You must add them yourself if
115 you want them.
116
117 ---
118 ** The standalone scripts rcs-checkin and vcdiff have been removed
119 (from the bin and libexec directories, respectively). The former is
120 no longer relevant, the latter is replaced by lisp (in vc-sccs.el).
121
122 \f
123 * Startup Changes in Emacs 24.3
124
125 +++
126 ** Emacs no longer searches for `leim-list.el' files beneath the standard
127 lisp/ directory. There should not be any there anyway. If you have
128 been adding them there, put them somewhere else, eg site-lisp.
129
130 ---
131 ** The `--no-site-lisp' command line option now works for Nextstep builds.
132
133 \f
134 * Changes in Emacs 24.3
135
136 +++
137 ** Most y-or-n prompts now allow you to scroll the selected window.
138 Typing C-v or M-v at a y-or-n prompt scrolls forward or backward
139 respectively, without exiting from the prompt.
140
141 ** Mode line changes
142 ---
143 *** New option `mode-line-default-help-echo' specifies the help text
144 (shown in a tooltip or in the echo area) for any part of the mode line
145 that does not have its own specialized help text.
146 +++
147 *** You can now click mouse-3 in the coding system indicator to invoke
148 `set-buffer-file-coding-system'.
149
150 ** Help changes
151
152 +++
153 *** `C-h f' (describe-function) can now perform autoloading.
154 When this command is called for an autoloaded function whose docstring
155 contains a key substitution construct, that function's library is
156 automatically loaded, so that the documentation can be shown
157 correctly. To disable this, set `help-enable-auto-load' to nil.
158
159 ---
160 *** `C-h f' now reports previously-autoloaded functions as "autoloaded",
161 even after their associated libraries have been loaded (and the
162 autoloads have been redefined as functions).
163
164 ** Minibuffer changes
165 ---
166 *** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the
167 next and previous path separator, respectively.
168 +++
169 *** minibuffer-electric-default-mode can rewrite (default ...) to [...].
170 Just set minibuffer-eldef-shorten-default to t before enabling the mode.
171
172 +++
173 ** ImageMagick support, if available, is automatically enabled.
174 It is no longer necessary to call `imagemagick-register-types'
175 explicitly to install ImageMagick image types; that function is called
176 automatically at startup, or when customizing an imagemagick- option.
177 +++
178 *** Setting `imagemagick-types-inhibit' to t now disables the use of
179 ImageMagick to view images. You must call imagemagick-register-types
180 afterwards if you do not use customize to change this.
181 +++
182 *** The new variable `imagemagick-enabled-types' also affects which
183 ImageMagick types are treated as images. The function
184 `imagemagick-filter-types' returns the list of types that will be
185 treated as images.
186 ---
187 *** Images displayed via ImageMagick now support transparency and the
188 :background image spec property.
189
190 ** Server and client changes
191 +++
192 *** emacsclient now obeys string values for `initial-buffer-choice',
193 if it is told to open a new frame without specifying any file to visit
194 or expression to evaluate.
195 ---
196 *** New option `server-auth-key' specifies a shared server key.
197
198 +++
199 ** In the Package Menu, newly-available packages are listed as "new",
200 and sorted above the other "available" packages by default.
201
202 +++
203 ** `C-x C-q' is now bound to the new minor mode `read-only-mode'.
204 This minor mode replaces `toggle-read-only', which is now obsolete.
205
206 +++
207 ** Emacs now generates backtraces on fatal errors.
208 On encountering a fatal error, Emacs now outputs a textual description
209 of the fatal signal, and a short backtrace on platforms like glibc
210 that support backtraces.
211
212 ---
213 ** If your Emacs was built from a bzr checkout, the new variable
214 `emacs-bzr-version' contains information about the bzr revision used.
215
216 +++
217 ** New variable `create-lockfiles' specifies usage of lockfiles.
218 It defaults to t. Changing it to nil inhibits the creation of lock
219 files (use this with caution).
220
221 +++
222 ** Using "unibyte: t" in Lisp source files is obsolete.
223 Use "coding: raw-text" instead.
224
225 +++
226 ** Setting `enable-remote-dir-locals' to non-nil allows directory
227 local variables on remote hosts.
228
229 ---
230 ** The entry for PCL-CVS has been removed from the Tools menu.
231 The PCL-CVS commands are still available via the keyboard.
232
233 ** Internationalization changes
234 ---
235 *** New language environment: Persian.
236 ---
237 *** New input method `vietnamese-vni'.
238
239 ** Nextstep (GNUstep / Mac OS X) port changes
240 ---
241 *** Fullscreen and frame parameter fullscreen is supported.
242 ---
243 *** A file dialog is used for open/save operations initiated from the
244 menu/toolbar.
245
246 \f
247 * Editing Changes in Emacs 24.3
248
249 ** Navigation command changes
250 +++
251 *** New binding `M-g c' for `goto-char'.
252 +++
253 *** New binding `M-g TAB' for `move-to-column'.
254 +++
255 *** `M-g TAB' (`move-to-column') prompts for a column number if called
256 interactively with no prefix arg. Previously, it moved to column 1.
257
258 ** Search and Replace changes
259 +++
260 *** Non-regexp Isearch now performs "lax" space matching.
261 Each sequence of spaces in the supplied search string may match any
262 sequence of one or more whitespace characters, as specified by the
263 variable `search-whitespace-regexp'. (This variable is also used by a
264 similar existing feature for regexp Isearch).
265 +++
266 *** New Isearch command `M-s SPC' toggles lax space matching.
267 This applies to both ordinary and regexp Isearch.
268 +++
269 *** New option `replace-lax-whitespace'.
270 If non-nil, `query-replace' uses flexible whitespace matching too.
271 The default is nil.
272 +++
273 *** Global `M-s _' starts a symbol (identifier) incremental search,
274 and `M-s _' in Isearch toggles symbol search mode.
275 `M-s c' in Isearch toggles search case-sensitivity.
276
277 +++
278 ** `C-x 8 RET' is now bound to `insert-char', which is now a command.
279 `ucs-insert' is now an obsolete alias for `insert-char'.
280
281 ---
282 ** The `z' key no longer has a binding in most special modes.
283 It used to be bound to `kill-this-buffer', but `z' is too easy to
284 accidentally type.
285
286 +++
287 ** New option `delete-trailing-lines' specifies whether
288 M-x delete-trailing-whitespace should delete trailing lines at the end
289 of the buffer. It defaults to t.
290
291 ** Register changes
292 +++
293 *** `C-x r +' is now overloaded to invoke `append-to-register.
294 +++
295 *** New option `register-separator' specifies the register containing
296 the text to put between collected texts for use with M-x
297 append-to-register and M-x prepend-to-register.
298
299 +++
300 ** `C-u M-=' now counts lines/words/characters in the entire buffer.
301
302 +++
303 ** New command `C-x r M-w' (copy-rectangle-as-kill).
304 It copies the region-rectangle as the last rectangle kill.
305
306 +++
307 ** New option `yank-handled-properties' allows processing of text
308 properties on yanked text, in more ways that are more general than
309 just removing them, as done by `yank-excluded-properties'.
310
311 \f
312 * Changes in Specialized Modes and Packages in Emacs 24.3
313
314 ** Apropos
315 ---
316 *** The faces used by Apropos are now directly customizable.
317 These faces are named `apropos-symbol', `apropos-keybinding', and so on;
318 see the `apropos' Custom group for details.
319 ---
320 *** The old options whose values specified faces to use were removed
321 (i.e. `apropos-symbol-face', `apropos-keybinding-face', etc.).
322
323 ** Buffer Menu
324 This package has been rewritten to use Tabulated List mode.
325 ---
326 *** Option `Buffer-menu-buffer+size-width' is now obsolete.
327 Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead.
328
329 ** Calendar
330
331 +++
332 *** You can customize the header text that appears above each calendar month.
333 See the variable `calendar-month-header'.
334
335 +++
336 *** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'.
337
338 +++
339 *** The calendars produced by cal-html include holidays.
340 Customize `cal-html-holidays' to change this.
341
342 ** CL
343
344 +++
345 *** CL's main entry is now (require 'cl-lib).
346 `cl-lib' is like the old `cl' except that it uses the namespace cleanly,
347 i.e. all its definitions have the "cl-" prefix (and internal definitions use
348 the "cl--" prefix).
349
350 If `cl' provided a feature under the name `foo', then `cl-lib' provides it
351 under the name `cl-foo' instead, with the exceptions of the few definitions
352 that had to use `foo*' to avoid conflicts with pre-existing Elisp entities,
353 which have not been renamed to `cl-foo*' but just `cl-foo'.
354
355 The old `cl' is now deprecated and is mainly just a bunch of aliases that
356 provide the old non-prefixed names. Some exceptions are listed below.
357
358 +++
359 *** `cl-flet' is not like `flet' (which is deprecated).
360 Instead it obeys the behavior of Common-Lisp's `flet'.
361
362 +++
363 *** `cl-labels' is slightly different from `labels'.
364 The difference is that it relies on the `lexical-binding' machinery (as opposed
365 to the `lexical-let' machinery used previously) to capture definitions in
366 closures, so such closures will only work if `lexical-binding' is in use.
367
368 +++
369 *** `cl-letf' is not exactly like `letf'.
370 The only difference is in details that relate to some deprecated usage
371 of `symbol-function' in place forms.
372
373 +++
374 *** `progv' was rewritten to use the `let' machinery.
375 A side effect is that vars without corresponding value are bound to nil
376 rather than making them unbound.
377
378 +++
379 *** The following methods of extending `setf' are obsolete
380 (use features from gv.el instead):
381 `define-modify-macro' (use `gv-letplace')
382 `defsetf' (use `gv-define-simple-setter' or `gv-define-setter')
383 `define-setf-expander' (use `gv-define-setter' or `gv-define-expander')
384 `get-setf-method' no longer exists (see "Incompatible Lisp Changes")
385
386 +++
387 ** New compilation option `compilation-always-kill'.
388
389 ** Customize
390 ---
391 *** `custom-reset-button-menu' now defaults to t.
392 ---
393 *** Non-option variables are never matched in `customize-apropos' and
394 `customize-apropos-options' (i.e. the prefix argument does nothing for
395 these commands now).
396
397 ---
398 ** `desktop-path' no longer includes the "." directory.
399 Desktop files are now located in ~/.emacs.d by default.
400
401 ** D-Bus
402
403 +++
404 *** New variables `dbus-compiled-version' and `dbus-runtime-version'.
405
406 +++
407 *** The D-Bus object manager interface is implemented.
408
409 +++
410 *** Variables of type :(u)int32 and :(u)int64 accept floating points,
411 if their value does not fit into Emacs's integer range.
412
413 +++
414 *** The function `dbus-call-method' works non-blocking now, it can be
415 interrupted by C-g. `dbus-call-method-non-blocking' is obsolete.
416
417 +++
418 *** Signals can be sent also as unicast message.
419
420 +++
421 *** The argument list of `dbus-register-signal' has been extended,
422 according to the new match rule types of D-Bus. See the manual for
423 details.
424
425 +++
426 *** `dbus-init-bus' supports private connections.
427
428 +++
429 *** There is a new function `dbus-setenv'.
430
431 ** Diff mode
432
433 ---
434 *** Changes are now highlighted using the same color scheme as in
435 modern VCSes. Deletions are displayed in red (new faces
436 `diff-refine-removed' and `smerge-refined-removed', and new definition
437 of `diff-removed'), insertions in green (new faces `diff-refine-added'
438 and `smerge-refined-added', and new definition of `diff-added').
439
440 ---
441 *** The variable `diff-use-changed-face' defines whether to use the
442 face `diff-changed', or `diff-removed' and `diff-added' to highlight
443 changes in context diffs.
444
445 +++
446 *** The new command `diff-delete-trailing-whitespace' removes trailing
447 whitespace introduced by a diff.
448
449 ** Dired
450 +++
451 *** `dired-do-async-shell-command' executes each file sequentially
452 if the command ends in `;' (when operating on multiple files).
453 Otherwise, it executes the command on each file in parallel.
454 ---
455 *** Typing M-n in the minibuffer of `dired-do-chmod', `dired-do-chgrp',
456 `dired-do-chown', `dired-do-touch' pulls the file attributes of the
457 file at point.
458 +++
459 *** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'),
460 `DEL' (`dired-unmark-backward'), `d' (`dired-flag-file-deletion')
461 mark/unmark/flag all files in the active region.
462 +++
463 *** The minibuffer default for `=' (`dired-diff) has changed.
464 It is now the backup file for the file at point, if one exists.
465 In Transient Mark mode the default is the file at the active mark.
466 +++
467 *** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers.
468 The global binding for `M-=', `count-words-region' is in effect.
469
470 ---
471 ** Ediff now uses the same color scheme as Diff mode.
472
473 ** ERC
474
475 *** New package `erc-desktop-notifications.el', which can send a notification
476 when you receive a private message or your nickname is mentioned.
477
478 *** ERC will look up server/channel names via auth-source and use any
479 channel keys found.
480
481 +++
482 ** Flymake uses fringe bitmaps to indicate errors and warnings.
483 See `flymake-fringe-indicator-position', `flymake-error-bitmap' and
484 `flymake-warning-bitmap'.
485
486 ---
487 ** Follow mode no longer works by using advice.
488 The option `follow-intercept-processes' has been removed.
489
490 ---
491 ** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings,
492 specifying URL types that should be converted to remote file names at
493 the FFAP prompt. The default is now '("ftp").
494
495 ---
496 ** New Ibuffer `derived-mode' filter, bound to `/ M'.
497 The old binding for `/ M' (filter by used-mode) is now bound to `/ m'.
498
499 ---
500 ** `javascript-generic-mode' is now an obsolete alias for `js-mode'.
501
502 +++
503 ** New option `mouse-avoidance-banish-position' specifies where the
504 `banish' mouse avoidance setting moves the mouse.
505
506 +++
507 ** notifications.el supports now version 1.2 of the Notifications API.
508 The function `notifications-get-capabilities' returns the supported
509 server properties.
510
511 ---
512 ** In Perl mode, new option `perl-indent-parens-as-block' causes non-block
513 closing brackets to be aligned with the line of the opening bracket.
514
515 ---
516 ** In Proced mode, new command `proced-renice' renices marked processes.
517
518 ---
519 ** Python mode
520
521 A new version of python.el, which provides several new features, including:
522 per-buffer shells, better indentation, Python 3 support, and improved
523 shell-interaction compatible with iPython (and virtually any other
524 text based shell).
525
526 *** Some user options have been replaced/renamed:
527 Old defcustom: | New defcustom:
528 python-indent | python-indent-offset
529 python-guess-indent | python-indent-guess-indent-offset
530 python-pdbtrack-do-tracking-p | python-pdbtrack-activate
531 python-use-skeletons | python-skeleton-autoinsert
532
533 *** Some user options have been removed:
534
535 **** `python-indent-string-contents': Strings are never indented.
536
537 **** `python-honour-comment-indentation':
538 Comments are never considered as indentation markers themselves.
539
540 **** `python-continuation-offset': Indentation is automatically
541 calculated in a pep8 compliant way depending on the context.
542
543 **** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist':
544 Have no direct mapping as the shell interaction is completely different.
545
546 **** `python-python-command', `python-jython-command':
547 Replaced by `python-shell-interpreter'.
548
549 **** `inferior-python-filter-regexp', `python-remove-cwd-from-path',
550 `python-pdbtrack-minor-mode-string', `python-source-modes':
551 No longer relevant.
552
553 *** Some commands have been replaced:
554 Old command | New command
555 python-insert-class | python-skeleton-class
556 python-insert-def | python-skeleton-def
557 python-insert-for | python-skeleton-for
558 python-insert-if | python-skeleton-if
559 python-insert-try/except | python-skeleton-try
560 python-insert-try/finally | python-skeleton-try
561 python-insert-while | python-skeleton-while
562 python-find-function | python-nav-jump-to-defun
563 python-next-statement | python-nav-forward-sentence
564 python-previous-statement | python-nav-backward-sentence
565 python-beginning-of-defun-function | python-nav-beginning-of-defun
566 python-end-of-defun-function | python-nav-end-of-defun
567 python-send-buffer | python-shell-send-buffer
568 python-send-defun | python-shell-send-defun
569 python-send-region | python-shell-send-region
570 python-send-region-and-go | Emulate with python-shell-send-region and
571 python-shell-switch-to-shell
572 python-send-string | python-shell-send-string
573 python-switch-to-python | python-shell-switch-to-shell
574 python-describe-symbol | python-eldoc-at-point
575
576 ---
577 ** reStructuredText mode
578
579 *** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling,
580 fontification, comment handling, and customization have all been revised
581 and improved.
582
583 *** Support for `imenu' and `which-function-mode'.
584
585 *** The reStructuredText syntax is more closely covered.
586 Sphinx support has been improved.
587
588 *** `rst-insert-list' inserts new list or continues existing lists.
589
590 *** A negative prefix argument always works for `rst-adjust'.
591
592 *** The window configuration is reset after displaying a TOC.
593
594 *** The constant `rst-version' describes the rst.el package version.
595
596 ---
597 ** Shell Script mode
598
599 *** Pairing of parens/quotes uses electric-pair-mode instead of skeleton-pair.
600
601 *** `sh-electric-here-document-mode' now controls auto-insertion of here-docs.
602
603 *** `sh-use-smie' lets you choose a new indentation and navigation code.
604
605 +++
606 ** New option `async-shell-command-buffer' specifies the buffer to use
607 for a new asynchronous `shell-command' when the default output buffer
608 `*Async Shell Command*' is already in use.
609
610 ---
611 ** SQL mode has a new option `sql-db2-escape-newlines'.
612 If non-nil, newlines sent to the command interpreter will be escaped
613 by a backslash. The default does not escape the newlines and assumes
614 that the sql statement will be terminated by a semicolon.
615
616 ** Tabulated List and packages derived from it
617 +++
618 *** New command `tabulated-list-sort', bound to `S', sorts the column
619 at point, or the Nth column if a numeric prefix argument is given.
620
621 ** Term
622 +++
623 *** The variables `term-default-fg-color' and `term-default-bg-color' are
624 now deprecated in favor of the customizable face `term'.
625 +++
626 *** You can customize how to display ANSI terminal colors and styles
627 by customizing the corresponding `term-color-<COLOR>',
628 `term-color-underline' and `term-color-bold' faces.
629
630 ** Tramp
631 +++
632 *** The syntax has been extended in order to allow ad-hoc proxy definitions.
633 See the manual for details.
634 +++
635 *** Remote processes are now supported also on remote Windows host.
636
637 ** URL
638 +++
639 *** Structs made by `url-generic-parse-url' have nil `attributes' slot.
640 Previously, this slot stored semicolon-separated attribute-value pairs
641 appended to some imap URLs, but this is not compatible with RFC 3986.
642 So now the `filename' slot stores the entire path and query components
643 and the `attributes' slot is always nil.
644 +++
645 *** New function `url-encode-url' for encoding a URI string.
646 The `url-retrieve' function now uses this to encode its URL argument,
647 in case that is not properly encoded.
648
649 ---
650 ** VHDL mode
651
652 *** The free software compiler GHDL is supported (and now the default).
653
654 *** Support for the VHDL-AMS packages has been added/updated.
655
656 *** Updated to the 2002 revision of the VHDL standard.
657
658 *** Accepts \r and \f as whitespace.
659
660 +++
661 ** `which-func-modes' now defaults to t, so Which Function mode, when
662 enabled, applies to all applicable major modes.
663
664 ---
665 ** winner-mode-hook now runs when the mode is disabled, as well as when it is
666 enabled.
667
668 ** FIXME something happened to ses.el, 2012-04-17.
669
670 ** Hooks renamed to avoid obsolete "-hooks" suffix:
671 *** semantic-lex-reset-hooks -> semantic-lex-reset-functions
672 *** semantic-change-hooks -> semantic-change-functions
673 *** semantic-edits-new-change-hooks -> semantic-edits-new-change-functions
674 *** semantic-edits-delete-change-hooks -> semantic-edits-delete-change-functions
675 *** semantic-edits-reparse-change-hooks -> semantic-edits-reparse-change-functions
676 *** semanticdb-save-database-hooks -> semanticdb-save-database-functions
677 *** c-prepare-bug-report-hooks -> c-prepare-bug-report-hook
678 *** rcirc-sentinel-hooks -> rcirc-sentinel-functions
679 *** rcirc-receive-message-hooks -> rcirc-receive-message-functions
680 *** rcirc-activity-hooks -> rcirc-activity-functions
681 *** rcirc-print-hooks -> rcirc-print-functions
682 *** dbus-event-error-hooks -> dbus-event-error-functions
683 *** eieio-pre-method-execution-hooks -> eieio-pre-method-execution-functions
684 *** checkdoc-style-hooks -> checkdoc-style-functions
685 *** checkdoc-comment-style-hooks -> checkdoc-comment-style-functions
686 *** archive-extract-hooks -> archive-extract-hook
687 *** filesets-cache-fill-content-hooks -> filesets-cache-fill-content-hook
688 *** hfy-post-html-hooks -> hfy-post-html-hook
689 *** nndiary-request-create-group-hooks -> nndiary-request-create-group-functions
690 *** nndiary-request-update-info-hooks -> nndiary-request-update-info-functions
691 *** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions
692 *** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions
693
694 ** Obsolete packages:
695 +++
696 *** assoc.el
697 In most cases, assoc+member+push+delq work just as well.
698 And in any case it's just a terrible package: ugly semantics, terrible
699 inefficiency, and not namespace-clean.
700 ---
701 *** bruce.el
702 +++
703 *** cust-print.el
704 ---
705 *** ledit.el
706 ---
707 *** mailpost.el
708 +++
709 *** mouse-sel.el
710 ---
711 *** patcomp.el
712
713 \f
714 * Incompatible Lisp Changes in Emacs 24.3
715
716 +++
717 ** set-buffer-multibyte now signals an error in narrowed buffers.
718
719 +++
720 ** (random) by default now returns a different random sequence in
721 every Emacs run. Use (random S), where S is a string, to set the
722 random seed to a value based on S, in order to get a repeatable
723 sequence in later calls.
724
725 ---
726 ** The function `x-select-font' can return a font spec, instead of a
727 font name as a string. Whether it returns a font spec or a font name
728 depends on the graphical library.
729
730 +++
731 ** If the NEWTEXT arg to `replace-match' contains a substring "\?",
732 that substring is inserted literally even if the LITERAL arg is
733 non-nil, instead of causing an error to be signaled.
734
735 +++
736 ** Docstrings starting with `*' no longer indicate user options.
737 Only variables defined using `defcustom' are considered user options.
738 The function `user-variable-p' is now an obsolete alias for
739 `custom-variable-p'.
740
741 +++
742 ** The return values of `defalias', `defun' and `defmacro' have changed,
743 and are now undefined. For backwards compatibility, defun and
744 defmacro currently return the name of the newly defined function/macro
745 but this should not be relied upon.
746
747 ---
748 ** `face-spec-set' no longer sets frame-specific attributes when the
749 third argument is a frame (that usage was obsolete since Emacs 22.2).
750
751 +++
752 ** The arguments of `dbus-register-signal' are no longer just strings,
753 but keywords or keyword-string pairs. The old argument list will
754 still be supported for Emacs 24.x.
755
756 +++
757 ** The CL package's `get-setf-method' function no longer exists.
758 Generalized variables are now part of core Emacs Lisp, and implemented
759 differently to the way cl.el used to do it. It is not possible to
760 define a compatible replacement for `get-setf-method'. See the file
761 gv.el for internal details of the new implementation.
762
763 ** Spelling changes.
764 Some Lisp symbols have been renamed to avoid problems with spelling
765 that is incorrect or inconsistent with how Emacs normally spells a word.
766
767 ---
768 *** Renamed functions
769
770 **** hangul-input-method-inactivate -> hangul-input-method-deactivate
771 **** inactivate-input-method -> deactivate-input-method
772 **** quail-inactivate -> quail-deactivate
773 **** robin-inactivate -> robin-deactivate
774 **** viper-inactivate-input-method -> viper-deactivate-input-method
775 **** viper-inactivate-input-method-action ->
776 viper-deactivate-input-method-action
777 **** ucs-input-inactivate -> ucs-input-deactivate
778
779 ---
780 *** Renamed hooks
781 The old hooks are still supported for backward compatibility, but they
782 are deprecated and will be removed eventually.
783 **** input-method-inactivate-hook -> input-method-deactivate-hook
784 **** robin-inactivate-hook -> robin-deactivate-hook
785 **** quail-inactivate-hook -> quail-deactivate-hook
786
787 ---
788 *** Renamed Lisp variables
789 **** follow-deactive-menu -> follow-inactive-menu
790 **** inactivate-current-input-method-function ->
791 deactivate-current-input-method-function
792
793 +++
794 ** Some obsolete functions, variables, and faces have been removed:
795 *** `last-input-char', `last-command-char', `unread-command-char'
796 *** `facemenu-unlisted-faces'
797 *** `rmail-decode-mime-charset'
798 *** `iswitchb-read-buffer'
799 *** `sc-version', `sc-submit-bug-report'
800 *** `set-char-table-default'
801 *** `string-to-sequence' (use `string-to-list' or `string-to-vector')
802 *** `compile-internal'
803 *** `modeline'
804 *** `mode-line-inverse-video'
805 *** `follow-mode-off-hook'
806 *** `cvs-commit-buffer-require-final-newline'
807 (use `log-edit-require-final-newline' instead)
808 *** `cvs-changelog-full-paragraphs'
809 (use `log-edit-changelog-full-paragraphs' instead)
810 *** `cvs-diff-ignore-marks', `cvs-diff-buffer-name'
811 *** `vc-ignore-vc-files' (use `vc-handled-backends' instead)
812 *** `vc-master-templates' (use `vc-handled-backends' instead)
813 *** `vc-checkout-carefully'
814
815 \f
816 * Lisp changes in Emacs 24.3
817
818 ** New sampling-based Elisp profiler.
819 Try M-x profiler-start, do some work, and then call M-x profiler-report.
820 When finished, use M-x profiler-stop. The sampling rate can be based on
821 CPU time (only supported on some systems) or memory allocations.
822
823 +++
824 ** CL-style generalized variables are now in core Elisp.
825 `setf' is autoloaded; `push' and `pop' accept generalized variables.
826 You can define your own generalized variables using `gv-define-simple-setter',
827 `gv-define-setter', etc.
828
829 +++
830 ** `defun' also accepts a (declare DECLS) form, like `defmacro'.
831 The interpretation of the DECLS is determined by `defun-declarations-alist'.
832
833 ** Minibuffer
834 +++
835 *** `read-regexp' has a new argument HISTORY; the first argument PROMPT
836 of `read-regexp' accepts a string ending with a colon and space, and its
837 second argument DEFAULTS can be a list of strings accessible via M-n
838 in the minibuffer ahead of other hard-coded useful regexp-related values.
839 More commands use `read-regexp' now to read their regexp arguments.
840
841 ** Completion
842
843 *** New function `completion-table-with-quoting' to handle completion
844 in the presence of quoting, such as file completion in shell buffers.
845
846 *** New function `completion-table-subvert' to use an existing completion
847 table, but with a different prefix.
848
849 ** Debugger changes
850
851 +++
852 *** New error type and new function `user-error'.
853 These do not trigger the debugger.
854
855 +++
856 *** New option `debugger-bury-or-kill', saying what to do with the
857 debugger buffer when exiting debug.
858
859 +++
860 *** Set `debug-on-message' to enter the debugger when a certain
861 message is displayed in the echo area. This can be useful when trying
862 to work out which code is doing something.
863 ---
864 *** New var `inhibit-debugger', automatically set to prevent accidental
865 recursive invocations.
866
867 ** Window changes
868 +++
869 *** The functions get-lru-window, get-mru-window and get-largest-window
870 now accept a third argument to avoid choosing the selected window.
871 +++
872 *** Additional values recognized for option `window-combination-limit'.
873
874 *** New macro `with-temp-buffer-window'.
875
876 *** `temp-buffer-resize-mode' no longer resizes windows that have been
877 reused.
878
879 *** New function `fit-frame-to-buffer' and new options
880 `fit-frame-to-buffer' and `fit-frame-to-buffer-bottom-margin'.
881 +++
882 *** New option switch-to-buffer-preserve-window-point to restore a
883 window's point when switching buffers.
884 +++
885 *** New display action functions `display-buffer-below-selected',
886 and `display-buffer-in-previous-window'.
887
888 *** New display action alist entry `inhibit-switch-frame', if non-nil,
889 tells display action functions to avoid changing which frame is
890 selected.
891
892 *** New display action alist entry `pop-up-frame-parameters', if
893 non-nil, specifies frame parameters to give any newly-created frame.
894 +++
895 *** New display action alist entry `previous-window', if non-nil,
896 specifies window to reuse in `display-buffer-in-previous-window'.
897 +++
898 *** New display action alist entries `window-height' and `window-width'
899 to specify size of new window created by `display-buffer'.
900
901 *** The following variables are obsolete, as they can be replaced by
902 appropriate entries in the `display-buffer-alist' function introduced
903 in Emacs 24.1:
904 +++
905 **** `display-buffer-reuse-frames'
906 +++
907 **** `special-display-regexps'
908 +++
909 **** `special-display-frame-alist'
910 +++
911 **** `special-display-buffer-names'
912 +++
913 **** `special-display-function'
914 +++
915 **** `display-buffer-function'
916 ---
917 **** `dired-shrink-to-fit'
918
919 ** Time
920 ---
921 *** `current-time-string' no longer requires that its argument's year
922 must be in the range 1000..9999. It now works with any year supported
923 by the underlying C implementation.
924 +++
925 *** `current-time' now returns extended-format time stamps
926 (HIGH LOW USEC PSEC), where the new PSEC slot specifies picoseconds.
927 PSEC is typically a multiple of 1000 on current machines. Other
928 functions that use this format, such as file-attributes and
929 format-time-string, have been changed accordingly. Old-format time
930 stamps are still accepted.
931 ---
932 *** The format of timers in timer-list and timer-idle-list is now
933 [TRIGGERED-P HI-SECS LO-SECS USECS REPEAT-DELAY FUNCTION ARGS IDLE-DELAY PSECS].
934 The PSECS slot is new, and uses picosecond resolution. It can be
935 accessed via the new timer--psecs accessor.
936 +++
937 *** Last-modified time stamps in undo lists now are of the form
938 (t HI-SECS LO-SECS USECS PSECS) instead of (t HI-SECS . LO-SECS).
939
940 +++
941 ** Floating point functions now always return special values like NaN,
942 instead of signaling errors, if given invalid args, e.g. (log -1.0).
943 Previously, they returned NaNs on some platforms but signaled errors
944 on others. The affected functions are acos, asin, tan, exp, expt,
945 log, log10, sqrt, and mod.
946
947 ** Interpreted files are eagerly macro-expanded during load.
948 This can significantly speed up execution of non-byte-compiled code,
949 but can also bump into harmless and previously unnoticed cyclic
950 dependencies. These should not be fatal: they will simply cause the
951 macro-calls to be left for later expansion (as before), but will also
952 result in a warning ("Eager macro-expansion skipped due to cycle")
953 describing the cycle.
954
955 ** Miscellaneous new functions:
956 +++
957 *** `autoloadp' tests if its argument is an autoloaded object.
958 +++
959 *** `autoload-do-load' performs the autoloading operation.
960 +++
961 *** `buffer-narrowed-p' tests if the buffer is narrowed.
962 +++
963 *** `file-name-base' returns a file name sans directory and extension.
964 +++
965 *** `function-get' fetches a function property, following aliases.
966 +++
967 *** `posnp' tests if an object is a `posn'.
968 *** `set-temporary-overlay-map' sets up a temporary overlay map.
969 +++
970 *** `system-users' returns the user names on the system.
971 +++
972 *** `system-groups' returns the group names on the system.
973 +++
974 *** `tty-top-frame' returns the topmost frame of a text terminal.
975
976 +++
977 ** New macros `setq-local' and `defvar-local'.
978
979 +++
980 ** New fringe bitmap `exclamation-mark'.
981
982 ** Face underlining can now use a wave.
983 See the "Face Attributes" section of the Elisp manual.
984
985 ** The following functions and variables are obsolete:
986 ---
987 *** `automount-dir-prefix' (use `directory-abbrev-alist')
988 +++
989 *** `buffer-has-markers-at'
990 ---
991 *** `macro-declaration-function' (use `macro-declarations-alist')
992 ---
993 *** `window-system-version' (provides no useful information)
994 ---
995 *** `dired-pop-to-buffer' (use `dired-mark-pop-up')
996 ---
997 *** `query-replace-interactive'
998 ---
999 *** `font-list-limit' (has had no effect since Emacs < 23)
1000
1001 \f
1002 * Changes in Emacs 24.3 on non-free operating systems
1003
1004 ---
1005 ** Cygwin builds can use the native MS Windows user interface.
1006 Pass --with-w32 to configure. The default remains the X11 interface.
1007
1008 ** Two new functions are available in Cygwin builds:
1009 `cygwin-convert-path-from-windows' and `cygwin-convert-path-to-windows'.
1010 These functions allow Lisp code to access the Cygwin file-name mapping
1011 machinery to convert between Cygwin and Windows-native file names.
1012
1013 ** When invoked with the -nw switch to run on the Windows text-mode terminal,
1014 Emacs now supports mouse highlight, help-echo (in the echo area), and
1015 `mouse-autoselect-window'.
1016
1017 +++
1018 ** On MS Windows Vista and later Emacs now supports symbolic links.
1019
1020 +++
1021 ** On MS Windows, you can pass --without-libxml2 to configure.bat to omit
1022 support for libxml2, even if its presence is detected.
1023
1024 ---
1025 ** On Mac OS X, the Nextstep port requires OS X 10.4 or later.
1026
1027 ---
1028 ** On Mac OS X, configure no longer automatically adds the Fink /sw
1029 directories to the search path. You must add them yourself if you want them.
1030
1031 \f
1032 * Changes in Emacs 24.2
1033
1034 ** This is mainly a bug-fix release.
1035
1036 \f
1037 * Installation Changes in Emacs 24.1
1038
1039 ** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
1040 to configure. Note that other libraries used by Emacs, RSVG and GConf,
1041 also depend on Gtk+. You can disable them with --without-rsvg and
1042 --without-gconf.
1043
1044 ** Emacs can be compiled with GnuTLS support.
1045 This happens by default if a suitably recent version of the library is
1046 found at build time. To prevent this, use the configure option
1047 `--without-gnutls'. See below for GnuTLS features.
1048
1049 ** Emacs can be compiled with SELinux support.
1050 This happens by default if a suitably recent version of the library is
1051 found at build time. To prevent this, use the configure option
1052 `--without-selinux'. See below for SELinux features.
1053
1054 ** Emacs can be compiled with ImageMagick support.
1055 This happens by default if a suitably recent version of the library is
1056 found at build time. To prevent this, use the configure option
1057 `--without-imagemagick'. See below for ImageMagick features.
1058 This feature is not available for the Nextstep or MS ports.
1059
1060 ** Emacs can be compiled with libxml2 support.
1061 This happens by default if a suitably recent version of the library is
1062 found at build time. To prevent this, use the configure option
1063 `--without-xml2'. See below for libxml2 features.
1064
1065 ** By default, the installed Info and man pages are compressed.
1066 You can disable this by configuring --without-compress-info.
1067
1068 ** New configure option --with-wide-int.
1069 With it, Emacs integers typically have 62 bits, even on 32-bit machines.
1070 On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB
1071 to about 2 GiB.
1072
1073 ** New configure options: --with-mmdf, --with-mail-unlink, --with-mailhost.
1074 These provide no new functionality, they just remove the need to edit
1075 lib-src/Makefile by hand in order to use the associated features.
1076
1077 ** New configure option --enable-use-lisp-union-type.
1078 This is only useful for Emacs developers to debug certain types of bugs.
1079 This is not a new feature; only the configure flag is new.
1080
1081 ** The standalone programs digest-doc and sorted-doc are removed.
1082 Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'.
1083
1084 ** The standalone program `fakemail' is removed.
1085 If you need it, feedmail.el provides a superset of the functionality.
1086
1087 \f
1088 * Startup Changes in Emacs 24.1
1089
1090 ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
1091 command line arguments, and the EMACS_UNIBYTE environment variable, no
1092 longer have any effect. (They were declared obsolete in Emacs 23.)
1093
1094 ** New command line option `--no-site-lisp' removes site-lisp directories
1095 from load-path. -Q now implies this. This option does not affect the
1096 EMACSLOADPATH environment variable (and hence has no effect for
1097 Nextstep builds).
1098
1099 \f
1100 * Changes in Emacs 24.1
1101
1102 ** Completion
1103
1104 *** Many packages now use the `completion-at-point' command,
1105 rather than implementing separate completion commands.
1106
1107 *** `completion-at-point' now handles tags and semantic completion.
1108
1109 *** Completion in a non-minibuffer now tries to detect the end of completion
1110 and pops down the *Completions* buffer accordingly.
1111
1112 *** New option `completion-cycle-threshold' allows completion cycling.
1113
1114 *** New option `completion-category-overrides' for overriding the
1115 default completion style in certain circumstances.
1116
1117 *** New completion style `substring'.
1118
1119 *** Completion of buffer names uses `substring' completion by default.
1120
1121 *** The option `widget-complete-field' has been removed.
1122
1123 ** Mail changes
1124
1125 *** The first time you try sending mail, Emacs asks for a mail method.
1126 This is implemented by a new default for `send-mail-function', which
1127 is `sendmail-query-once'. This offers to use the smtpmail package, or
1128 to use the old defaults relying on external mail facilities
1129 (`sendmail-send-it' on GNU/Linux and other Unix-like systems, and
1130 `mailclient-send-it' on Windows).
1131
1132 *** Typing C-c m in the buffer made by M-x report-emacs-bug transfers
1133 the report to your desktop's preferred mail client, if there is one.
1134 This uses either the "xdg-email" utility, or Mac OS's "open" command.
1135
1136 *** See Changes in Specialized Modes and Packages for SMTPmail changes
1137 and Mail mode changes
1138
1139 ** Emacs server and client changes
1140
1141 *** New option `server-port' specifies the port for TCP Emacs servers.
1142
1143 *** New emacsclient argument -q/--quiet suppresses some status messages.
1144
1145 *** New emacsclient argument --frame-parameters specifies the frame
1146 parameters of any newly-created graphical frame.
1147
1148 *** If emacsclient shuts down due to Emacs signaling an error,
1149 its exit status is 1.
1150
1151 *** New emacsclient argument --parent-id ID.
1152 This opens a client frame in parent X window ID, via XEmbed, similar
1153 to the --parent-id argument to Emacs.
1154
1155 ** Internationalization changes
1156
1157 *** Emacs now supports display and editing of bidirectional text.
1158 Right-to-left (RTL) scripts, such as Arabic, Farsi, and Hebrew, are
1159 displayed in the correct visual order as expected by users of those
1160 scripts. The display reordering is a "full bidirectionality" class
1161 implementation of the Unicode Bidirectional Algorithm (UBA). Buffers
1162 with no RTL text should look exactly the same as before.
1163
1164 **** New buffer-local variable `bidi-display-reordering'.
1165 To disable display reordering in a buffer, change this to nil.
1166
1167 **** New buffer-local variable `bidi-paragraph-direction'.
1168 If nil (the default), Emacs determines the base direction of each
1169 paragraph from its text, as specified by the UBA. Setting the value
1170 to `right-to-left' or `left-to-right' forces a base direction on each
1171 paragraph.
1172
1173 Paragraphs with right-to-left base direction are displayed starting at
1174 the right window edge.
1175
1176 *** Enhanced support for characters with no glyphs in available fonts,
1177 or, on text terminals, characters that cannot be encoded by the
1178 terminal coding system. The new option `glyphless-char-display-control'
1179 specifies how to display them: as a hexadecimal code in a box, a thin
1180 1-pixel space, an empty box, etc.
1181
1182 *** New input methods for Farsi and Bulgarian
1183 (farsi-isiri-9147, farsi-transliterate-banan, bulgarian-alt-phonetic).
1184
1185 *** `nobreak-char-display' now also highlights Unicode hyphen chars
1186 (U+2010 and U+2011).
1187
1188 *** New Hebrew translation of the Emacs Tutorial.
1189 Type `C-u C-h t' to choose it in case your language setup doesn't
1190 automatically select it.
1191
1192 ** An Emacs Lisp package manager is now included.
1193 This is a convenient way to download and install additional packages,
1194 from a package repository at http://elpa.gnu.org.
1195
1196 *** M-x list-packages shows a list of packages, which can be
1197 selected for installation.
1198
1199 *** New command `describe-package', bound to `C-h P'.
1200
1201 *** By default, all installed packages are loaded automatically when
1202 Emacs starts up. To disable this, set `package-enable-at-startup' to
1203 nil. To specify the packages to load, customize `package-load-list'.
1204
1205 ** Custom theme changes
1206
1207 *** New command `M-x customize-themes', which provides a convenient
1208 interface for enabling and disabling Custom themes.
1209
1210 *** New option `custom-theme-load-path' is the load path for themes.
1211 Emacs no longer looks for Custom themes in `load-path'. The default
1212 value of `custom-theme-load-path' says to look for themes in
1213 `custom-theme-directory', followed by a subdirectory of
1214 `data-directory' named "themes/", which contains a small selection of
1215 built-in Custom themes.
1216
1217 *** New option `custom-safe-themes' records known-safe theme files.
1218 If a theme is not in this list, Emacs queries before loading it, and
1219 offers to save the theme to `custom-safe-themes' automatically. By
1220 default, all themes included in Emacs are treated as safe.
1221
1222 ** Improved GTK integration
1223
1224 *** GTK scroll-bars are now placed on the right by default.
1225 The function `set-scroll-bar-mode' can change this.
1226
1227 *** GTK tool bars can have just text, just images or images and text.
1228 Customize `tool-bar-style' to choose the style. On a Gnome desktop,
1229 the default is taken from desktop settings.
1230
1231 *** GTK tool bars can be placed on any edge of the frame.
1232 The frame-parameter tool-bar-position controls this. It takes the
1233 values top, left, right or bottom. The Options => Show/Hide menu has
1234 entries for this.
1235
1236 *** The default colors for selected text (the `region' face) are taken
1237 from the GTK theme when Emacs is built with GTK.
1238
1239 *** Emacs uses GTK tooltips by default if built with GTK.
1240 You can disable this by changing `x-gtk-use-system-tooltips' to nil.
1241
1242 ** Graphical interface changes
1243
1244 *** On graphical displays, the mode-line no longer ends in dashes.
1245 Also, the first dash (which does not indicate anything) is just
1246 displayed as a space.
1247
1248 *** `menu-bar-select-buffer-function' lets you choose another operation
1249 instead of `switch-to-buffer' when selecting an item in the Buffers menu.
1250
1251 *** Lucid menus and dialogs can display antialiased fonts if Emacs is
1252 built with Xft. These fonts can be set via X resources, for example:
1253 Emacs.pane.menubar.font: Courier-12
1254
1255 ** Exiting changes
1256
1257 *** Emacs now calls `kill-emacs' if it receives SIGTERM or SIGHUP,
1258 or if it receives a SIGINT signal in batch mode.
1259
1260 *** `kill-emacs-hook' is now also run in batch mode.
1261 Third-party code which adds to `kill-emacs-hook' should check if they
1262 do the right thing in batch mode.
1263
1264 ** Scrolling changes
1265
1266 *** New scrolling commands `scroll-up-command' and `scroll-down-command'
1267 (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
1268 of buffer at first key-press (instead they move to top/bottom of buffer)
1269 when `scroll-error-top-bottom' is non-nil.
1270
1271 *** New option `scroll-error-top-bottom' (see above).
1272
1273 *** New scrolling commands `scroll-up-line' and `scroll-down-line'
1274 scroll a line instead of full screen.
1275
1276 *** New property `scroll-command' should be set on a command's symbol to
1277 define it as a scroll command affected by `scroll-preserve-screen-position'.
1278
1279 *** If you customize `scroll-conservatively' to a value greater than 100,
1280 Emacs will never recenter point in the window when it scrolls due to
1281 cursor motion commands or commands that move point (e.f., `M-g M-g').
1282 Previously, you needed to use `most-positive-fixnum' as the value of
1283 `scroll-conservatively' to achieve the same effect.
1284
1285 *** "Aggressive" scrolling now honors the scroll margins.
1286 If you customize `scroll-up-aggressively' or
1287 `scroll-down-aggressively' and move point off the window, Emacs now
1288 scrolls the window so as to avoid positioning point inside the scroll
1289 margin.
1290
1291 ** Basic SELinux support has been added.
1292 This requires Emacs to be linked with libselinux at build time.
1293
1294 *** Emacs preserves the SELinux file context when backing up.
1295 Also, the function `copy-file' has an extra optional argument for
1296 preserving SELinux context, and the return value of `backup-buffer'
1297 now includes the SELinux context.
1298
1299 *** New functions `file-selinux-context' and `set-file-selinux-context'
1300 get and set the SELinux context of a file.
1301
1302 ** Trash changes
1303
1304 *** `delete-by-moving-to-trash' now only affects commands that specify
1305 trashing. This avoids inadvertently trashing temporary files.
1306
1307 *** Calling `delete-file' or `delete-directory' with a prefix argument
1308 now forces true deletion, regardless of `delete-by-moving-to-trash'.
1309
1310 ** File- and directory-local variable changes
1311
1312 *** You can stop directory local vars from applying to subdirectories.
1313 Add an element (subdirs . nil) to the alist portion of any variables
1314 settings to indicate that the section should not apply to
1315 subdirectories.
1316
1317 *** Directory local variables can apply to some file-less buffers.
1318 Affected modes include dired, vc-dir, and log-edit. For example,
1319 adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will
1320 turn on `whitespace-mode' for *vc-diff* buffers. Modes should call
1321 `hack-dir-local-variables-non-file-buffer' to support this.
1322
1323 *** Using "mode: MINOR-MODE" to enable a minor mode is deprecated.
1324 Instead, use "eval: (minor-mode 1)".
1325
1326 *** The variable `inhibit-first-line-modes-regexps' has been renamed
1327 to `inhibit-local-variables-regexps'. As the name suggests, it now
1328 applies to ALL file local variables, not just -*- lines. The
1329 associated `inhibit-first-line-modes-suffixes' has been renamed in the
1330 corresponding way.
1331
1332 ** Window changes
1333
1334 *** The `quit-window' command now restores the last buffer displayed
1335 in the quitted window.
1336
1337 *** Resizing an Emacs frame now preserves proportional window sizes,
1338 modulo restrictions like window minimum sizes and fixed-size windows.
1339
1340 *** The behavior of `display-buffer' is now customizable in detail.
1341
1342 **** New option `display-buffer-base-action' specifies a list of
1343 user-determined display "actions" (functions and optional arguments
1344 for choosing the displaying window).
1345
1346 This takes precedence over the default display action, which is
1347 specified by `display-buffer-fallback-action'.
1348
1349 **** New option `display-buffer-alist' maps buffer name regexps to
1350 display actions, taking precedence over `display-buffer-base-action'.
1351
1352 *** New option `window-combination-limit'.
1353 The new option `window-combination-limit' allows to return the space
1354 obtained for resizing or creating a window more reliably to the window
1355 from which such space was obtained.
1356
1357 *** New option `window-combination-resize'.
1358 The new option `window-combination-resize' allows to split a window that
1359 otherwise cannot be split because it's too small by stealing space from
1360 other windows in the same combination. Subsequent resizing or deletion
1361 of the window will resize all windows in the same combination as well.
1362
1363 *** New option `frame-auto-hide-function' lets you choose between
1364 iconifying or deleting a frame when burying a buffer in a dedicated
1365 frame, or quitting a window showing a buffer in a frame of its own.
1366
1367 *** New commands `maximize-window' and `minimize-window'.
1368 These maximize and minimize the size of a window within its frame.
1369
1370 *** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'.
1371 These functions allow to navigate through the live buffers that have
1372 been shown in a specific window.
1373
1374 ** Minibuffer changes
1375
1376 *** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
1377 This is handy for minibuffer-only frames, and is also used for the feature
1378 where mouse-1 pops up *Messages*"', which can now easily be changed.
1379
1380 *** Minibuffers set `truncate-lines' to nil.
1381 If you want to change the value to something else, you could use
1382 for example `minibuffer-setup-hook'.
1383
1384 ** `auto-mode-case-fold' is now enabled by default.
1385
1386 ** `backup-by-copying-when-mismatch' now defaults to t.
1387
1388 ** New basic faces `error', `warning', `success'.
1389 These are used to highlight text indicating failure, caution or
1390 successful operation.
1391
1392 ** New option `list-colors-sort' defines the color sort order
1393 for `list-colors-display'.
1394
1395 ** The variable `focus-follows-mouse' now always defaults to nil.
1396
1397 \f
1398 * Editing Changes in Emacs 24.1
1399
1400 ** Search changes
1401
1402 *** C-y in Isearch is now bound to `isearch-yank-kill', instead of
1403 `isearch-yank-line'.
1404
1405 *** M-y in Isearch is now bound to `isearch-yank-pop', instead of
1406 `isearch-yank-kill'.
1407
1408 *** M-s C-e in Isearch is now bound to `isearch-yank-line'.
1409
1410 ** New commands `count-words-region' and `count-words'.
1411
1412 *** M-= is bound to `count-words-region', not `count-lines-region'.
1413 The `count-words-region' command, when called interactively, reports
1414 the number of lines, words, and characters in the region. It is a
1415 superset of the old `count-lines-region', which is now an obsolete
1416 alias for it.
1417
1418 ** The command `just-one-space' (M-SPC), if given a negative argument,
1419 also deletes newlines around point.
1420
1421 ** Deletion changes
1422
1423 *** New option `delete-active-region'.
1424 If non-nil, [delete] and DEL delete the region if it is active and no
1425 prefix argument is given. If set to `kill', those commands kill
1426 instead.
1427
1428 *** New command `delete-forward-char', bound to [delete].
1429 This is meant for interactive use, and obeys `delete-active-region'.
1430 The command `delete-char' does not obey `delete-active-region'.
1431
1432 *** `delete-backward-char' is now a Lisp function.
1433 Apart from obeying `delete-active-region', its behavior is unchanged.
1434 However, the byte compiler now warns if it is called from Lisp; Lisp
1435 callers should use delete-char with a negative argument instead.
1436
1437 *** The option `mouse-region-delete-keys' has been deleted.
1438
1439 ** Selection changes.
1440
1441 The default handling of clipboard and primary selections has been
1442 changed to conform with modern X applications. In short, most
1443 commands for killing and yanking text now use the clipboard, while
1444 mouse commands use the primary selection.
1445
1446 In the following, we provide a list of these changes, followed by a
1447 list of steps to get the old behavior back if you prefer that.
1448
1449 *** `select-active-regions' now defaults to t.
1450 Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
1451 the kill ring. The selected text is put in the primary selection, if
1452 the system possesses a separate primary selection facility (e.g. X).
1453
1454 **** `select-active-regions' also accepts a new value, `only'.
1455 This means to only set the primary selection for temporarily active
1456 regions (usually made by mouse-dragging or shift-selection);
1457 "ordinary" active regions, such as those made with C-SPC followed by
1458 point motion, do not alter the primary selection.
1459
1460 **** `mouse-drag-copy-region' now defaults to nil.
1461
1462 *** mouse-2 is now bound to `mouse-yank-primary'.
1463 This pastes from the primary selection, ignoring the kill-ring.
1464 Previously, mouse-2 was bound to `mouse-yank-at-click'.
1465
1466 *** `x-select-enable-clipboard' now defaults to t on all platforms.
1467
1468 *** `x-select-enable-primary' now defaults to nil.
1469 Thus, commands that kill text or copy it to the kill-ring (such as
1470 M-w, C-w, and C-k) also use the clipboard---not the primary selection.
1471
1472 **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
1473 exactly equivalent to M-w, C-w, and C-y respectively.
1474
1475 **** Note that on MS-Windows, `x-select-enable-clipboard' was already
1476 non-nil by default, as Windows does not support the primary selection
1477 between applications.
1478
1479 *** To return to the previous behavior, do the following:
1480
1481 **** Change `select-active-regions' to nil.
1482 **** Change `mouse-drag-copy-region' to t.
1483 **** Change `x-select-enable-primary' to t (on X only).
1484 **** Change `x-select-enable-clipboard' to nil.
1485 **** Bind `mouse-yank-at-click' to mouse-2.
1486
1487 *** Support for X cut buffers has been removed.
1488
1489 *** X clipboard managers are now supported.
1490 To inhibit this, change `x-select-enable-clipboard-manager' to nil.
1491
1492 ** New command `C-x r N' (`rectangle-number-lines') numbers the lines
1493 in the current rectangle. With a prefix argument, this prompts for a
1494 number to count from and for a format string.
1495
1496 ** `redisplay-dont-pause' now defaults to t.
1497 This makes Emacs feel more responsive to editing commands that arrive
1498 at high rate, e.g. if you lean on some key, because stopping redisplay
1499 in the middle (when this variable is nil) forces more expensive
1500 updates later on, and Emacs appears to be unable to keep up.
1501
1502 ** The behavior of <TAB> for active regions in Text mode has changed.
1503 In Text and related modes, typing <TAB> (`indent-for-tab-command')
1504 when the region is active causes Emacs to indent all the lines in the
1505 region, aligning them with the line previous to the first line in the
1506 region (or with the left margin if there is no previous line).
1507
1508 ** When `occur' is called with a prefix argument, matching strings are
1509 collected into the `*Occur*' buffer without line numbers. If there
1510 are parenthesized subexpressions in the specified regexp, `occur'
1511 reads replacement text that may contain \\& and \\N whose convention
1512 follows `replace-match'.
1513
1514 \f
1515 * Changes in Specialized Modes and Packages in Emacs 24.1
1516
1517 ** Archive Mode has basic support for browsing and updating 7z archives.
1518
1519 ** BibTeX mode
1520
1521 *** BibTeX mode now supports biblatex.
1522 Use the variable `bibtex-dialect' to select different BibTeX dialects.
1523 `bibtex-entry-field-alist' is now an obsolete alias for
1524 `bibtex-BibTeX-entry-alist'.
1525
1526 *** New command `bibtex-search-entries', bound to C-c C-a.
1527
1528 *** New `bibtex-entry-format' option `sort-fields', disabled by default.
1529
1530 *** New variable `bibtex-search-entry-globally'.
1531
1532 ** Browse-url
1533
1534 *** New option `browse-url-mailto-function' specifies how to handle "mailto:"s.
1535
1536 *** The default browser used by the package is now the "xdg-open" program,
1537 on platforms that support it. This calls your desktop's preferred browser.
1538
1539 ** Calendar, Diary, and Appt
1540
1541 *** Diary entries can contain non-printing "comments".
1542 See the variable `diary-comment-start'.
1543
1544 *** Appointments can specify their individual warning times.
1545 See the variable `appt-warning-time-regexp'.
1546
1547 *** The function specified by `appt-disp-window-function' may be passed
1548 lists of arguments if multiple appointments are due at similar times.
1549 If you are using a custom function for this, you should update it.
1550
1551 *** New function `diary-hebrew-birthday'.
1552
1553 *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array'
1554 may no longer be nil, but must all be strings.
1555
1556 *** The obsolete (since Emacs 22.1) method of enabling the appt
1557 package by adding `appt-make-list' to `diary-hook' has been removed.
1558 Use `appt-activate' instead.
1559
1560 *** Some appt variables (obsolete since Emacs 22.1) have been removed:
1561 appt-issue-message (use the function appt-activate)
1562 appt-visible/appt-msg-window (use the variable appt-display-format)
1563
1564 *** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
1565 view-diary-entries, list-diary-entries, show-all-diary-entries
1566
1567 ** CC Mode
1568
1569 *** New feature to "guess" the style in an existing buffer.
1570 The main entry point is M-x c-guess.
1571
1572 *** Java Mode now supports Java 5.0 (Tiger) and 6 (Mustang).
1573
1574 *** `c-beginning-of-defun' and `c-end-of-defun' now respect nested scopes.
1575 Thus C-M-a will, by default, go to the beginning of the immediate function,
1576 not the top level.
1577
1578 *** "Macros with semicolons" can be registered for correct indentation.
1579 Where such a macro ends a line (no semicolon) the next statement is no longer
1580 parsed as a statement continuation.
1581
1582 ** Comint and modes derived from it use the standard completion code.
1583
1584 ** Compilation mode
1585
1586 *** Compilation mode can be used without Font Lock mode.
1587 `compilation-parse-errors-function' is now obsolete.
1588
1589 *** New variable `compilation-filter-start', which is bound while
1590 `compilation-filter-hook' runs. It records the start position of the
1591 text inserted by `compilation-filter'.
1592
1593 *** `compilation-error-screen-columns' and `compilation-first-column'
1594 are obeyed in the editing buffer. So programming language modes can
1595 set them, whereas previously only the value in the *Compilation*
1596 buffer was used.
1597
1598 ** Customize
1599
1600 *** Customize buffers now contain a search field.
1601 The search is performed using `customize-apropos'.
1602 To turn off the search field, set `custom-search-field' to nil.
1603
1604 *** Options in customize group buffers start out hidden if not customized.
1605 Use the arrow to the left of the option name to toggle visibility.
1606
1607 *** custom-buffer-sort-alphabetically now defaults to t.
1608
1609 *** The color widget now has a "Choose" button, which allows you to
1610 choose a color via `list-colors-display'.
1611
1612 ** D-Bus
1613
1614 *** It is now possible to access buses other than the default system
1615 or session bus.
1616
1617 *** The `dbus-register-method' and `dbus-register-property' functions
1618 optionally do not register names.
1619
1620 *** The new function `dbus-register-service' registers a known service
1621 name on a D-Bus without also registering a property or a method.
1622
1623 ** Dired-x
1624
1625 *** C-x C-j (`dired-jump') and C-x 4 C-j (`dired-jump-other-window'),
1626 if called with a prefix argument, read a file name from the minibuffer
1627 instead of using the current buffer.
1628
1629 *** The "dired local variables" feature of Dired-x is obsolete.
1630 The standard directory local variables feature replaces it.
1631
1632 ** ERC changes
1633
1634 *** New options `erc-autojoin-timing' and `erc-autojoin-delay',
1635 controlling attempts to autojoin a channel.
1636
1637 *** New variable `erc-coding-system-precedence': If we use `undecided'
1638 as the server coding system, this variable will then be consulted.
1639 The default is to decode strings that can be decoded as utf-8 as
1640 utf-8, and do the normal `undecided' decoding for the rest.
1641
1642 ** Eshell changes
1643
1644 *** The default value of `eshell-directory-name' has changed
1645 to be an "eshell" directory in `user-emacs-directory'.
1646 The old "~/.eshell/" directory is still used if it exists, though.
1647
1648 ** gdb-mi
1649
1650 *** The M-x gdb command now uses the GDB Machine Interface protocol.
1651 It now supports multithread non-stop debugging and simultaneous
1652 debugging of several threads.
1653
1654 ** Image mode
1655
1656 *** RET (`image-toggle-animation') toggles animation, if applicable.
1657 Animation plays once, unless the option `image-animate-loop' is non-nil.
1658
1659 ** Info
1660
1661 *** New command M-x info-display-manual displays a named Info manual.
1662 If that manual is already visited in some Info buffer, it displays
1663 that buffer. (This is handy if you have many manuals in many *info*
1664 buffers, and don't remember the name of the buffer visiting the manual
1665 you want to consult.) Otherwise, it loads and displays the manual.
1666
1667 *** `e' is now bound to `end-of-buffer' rather than to `Info-edit'.
1668 This is for compatibility with the stand-alone Info reader program,
1669 and also because `Info-edit' is a rarely used command that is disabled
1670 by default.
1671
1672 ** Mail mode changes (not Message mode)
1673
1674 *** New command M-x mail-add-attachment for adding MIME attachments
1675
1676 *** The command M-x mail-attach-file was renamed to M-x mail-insert-file.
1677 (Its name is misleading, since it has nothing to do with MIME
1678 attachments.) The old name is now an obsolete alias to the new name.
1679
1680 ** MH-E has been updated to MH-E version 8.3.1.
1681 See MH-E-NEWS for details.
1682
1683 ** Modula-2 mode provides auto-indentation.
1684
1685 ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
1686
1687 ** nXML mode no longer binds C-RET to `nxml-complete'.
1688 Completion is now performed via `completion-at-point', bound to C-M-i
1689 or M-TAB. If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the
1690 default), this performs tag completion.
1691
1692 ** Org mode has been updated to version 7.8.09.
1693 See ORG-NEWS for details.
1694
1695 ** Prolog mode has been completely revamped, with lots of additional
1696 functionality such as more intelligent indentation, electricity,
1697 support for more variants, including Mercury, and a lot more.
1698
1699 ** Rmail
1700
1701 *** The command `rmail-epa-decrypt' decrypts OpenPGP data
1702 in the Rmail incoming message.
1703
1704 *** The variable `rmail-message-filter' no longer has any effect.
1705 This change was made in Emacs 23.1 but was not advertised at the time.
1706 Try using `rmail-show-message-hook' instead.
1707
1708 ** Shell mode
1709
1710 *** M-x shell prompts for the shell path name if the default directory
1711 is a remote file name and neither the environment variable $ESHELL nor
1712 the variable `explicit-shell-file-name' is set.
1713
1714 *** TAB is now bound to the standard `completion-at-point' command,
1715 which now implements the pcomplete rules for shell command completion.
1716
1717 ** SMTPmail
1718
1719 *** SMTPmail now uses encrypted connections (via STARTTLS) by default
1720 if the mail server supports them. This uses either built-in GnuTLS
1721 support, or the starttls.el library. Customize `smtpmail-stream-type'
1722 to change this.
1723
1724 *** The variable `smtpmail-auth-credentials' has been removed.
1725 By default, the information is now stored in the file ~/.authinfo.
1726 This was the default value of smtpmail-auth-credentials. If you had
1727 customized smtpmail-auth-credentials to a list of user names and
1728 passwords, those settings are not used. During your first connection
1729 to the smtp server, Emacs will prompt for the user name and password,
1730 and offer to save them to ~/.authinfo. Or you can manually copy the
1731 credentials to ~/.authinfo. For example, if you had
1732
1733 (setq smtpmail-auth-credentials
1734 '(("mail.example.org" 25 "jim" "s!cret")))
1735
1736 then the equivalent line in ~/.authinfo would be
1737
1738 machine mail.example.org port 25 login jim password s!cret
1739
1740 See the auth-source manual for more information, e.g. on encrypting
1741 the credentials file.
1742
1743 *** The variable `smtpmail-starttls-credentials' has been removed.
1744 If you had that set, you need to put
1745
1746 machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert"
1747
1748 in your ~/.authinfo file instead.
1749
1750 *** SMTPmail defaults to using the address in the From: header as the
1751 SMTP MAIL FROM envelope. To override this, set `mail-envelope-from'
1752 to the address you wish to use instead.
1753
1754 ** SQL mode
1755
1756 *** New options `sql-port', `sql-connection-alist', `sql-send-terminator',
1757 and `sql-oracle-scan-on'.
1758
1759 *** New options controlling prompting for login parameters.
1760 Each supported product has a custom variable `sql-*-login-params',
1761 which is a list of the parameters to be prompted for before a
1762 connection is established.
1763
1764 *** The command `sql-product-interactive' now takes a prefix argument,
1765 which causes it to prompt for an SQL product.
1766
1767 *** Product-specific SQL interactive commands now take prefix arguments.
1768 These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.),
1769 given a prefix argument, prompt for a name for the SQL interactive
1770 buffer. This reduces the need for calling `sql-rename-buffer'.
1771
1772 *** SQL interactive modes suppress command continuation prompts, and
1773 replace tabs with spaces. The first change impacts multiple line SQL
1774 statements entered with C-j between each line, statements yanked into
1775 the buffer and statements sent with `sql-send-*' functions. The
1776 second prevents the MySQL and Postgres interpreters from listing
1777 object name completions when sent text via `sql-send-*' functions.
1778
1779 *** New command `sql-connect' starts a predefined SQLi session,
1780 using the login parameters from `sql-connection-alist'.
1781
1782 *** New "Save Connection" menu item in SQLi buffers.
1783 This gathers the login params specified for the SQLi session, if it
1784 was not started by a connection, and saves them as a new connection.
1785
1786 *** New commands for listing database objects and details:
1787 sql-list-all and sql-list-table.
1788
1789 *** An API for manipulating SQL product definitions has been added.
1790
1791 ** TeX modes
1792
1793 *** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
1794
1795 ** Tramp
1796
1797 *** New inline access method "ksu" (kerberized su).
1798
1799 *** The following access methods are discontinued: "ssh1_old",
1800 "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
1801
1802 *** The user option `remote-file-name-inhibit-cache' controls whether
1803 remote file attributes are cached for better performance.
1804
1805 *** The option `ange-ftp-binary-file-name-regexp' has changed its
1806 default value to "".
1807
1808 *** Handlers for `file-selinux-context' and `set-file-selinux-context'
1809 for remote machines which support SELinux.
1810
1811 ** New function `url-queue-retrieve', which behaves like url-retrieve,
1812 but with limits (`url-queue-parallel-processes', `url-queue-timeout') on
1813 the degree of parallelism.
1814
1815 ** VC and related modes
1816
1817 *** Support for pulling on distributed version control systems.
1818 The command C-x v + (`vc-pull') runs a "pull" operation, if it is
1819 supported (currently with Bzr, Git, and Mercurial), to update the
1820 current branch and working tree. A prefix argument means to prompt
1821 the user for specifics, e.g. a pull location.
1822
1823 *** `vc-update' is now an alias for `vc-pull'.
1824
1825 *** Support for merging on distributed version control systems.
1826 The command C-x v m (`vc-merge') now runs a "merge" operation, if it
1827 is supported (currently with Bzr, Git, and Mercurial), to merge
1828 changes from another branch into the current one. It prompts for
1829 specifics, e.g. a merge source.
1830
1831 *** New option `vc-revert-show-diff' controls whether `vc-revert'
1832 shows a diff while querying the user. It defaults to t.
1833
1834 *** Log entries in some Log View buffers can be toggled to display a
1835 longer description by typing RET (log-view-toggle-entry-display).
1836 This is currently supported for Bzr, Git, and Mercurial (to support
1837 another backend, define a `log-view-expanded-log-entry-function').
1838 In the Log View buffers made by C-x v L (`vc-print-root-log'), you can
1839 use this to display the full log entry for the revision at point.
1840
1841 *** New command `vc-ediff' allows visual comparison of two revisions
1842 of a file similar to `vc-diff', but using ediff backend.
1843
1844 *** The option `vc-initial-comment' was removed in Emacs 23.2, but
1845 this was not advertised at the time.
1846
1847 *** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'.
1848 Since Emacs 23, it has done the same thing as `toggle-read-only', but
1849 this was not advertised at the time.
1850
1851 ** Obsolete modes
1852
1853 *** abbrevlist.el
1854
1855 *** erc-hecomplete.el (use erc-pcomplete.el instead)
1856
1857 *** partial-completion-mode (complete.el) is obsolete.
1858 You can get a comparable behavior with:
1859 (setq completion-styles '(partial-completion initials))
1860 (setq completion-pcm-complete-word-inserts-delimiters t)
1861
1862 *** pc-mode.el is obsolete (CUA mode is much more comprehensive).
1863
1864 *** pgg is obsolete (use EasyPG instead).
1865
1866 *** sregex.el is obsolete, since rx.el is a strict superset.
1867
1868 *** s-region.el and pc-select.el are obsolete.
1869 They are superseded by shift-select-mode, enabled by default since 23.1.
1870
1871 *** vc-mcvs.el is obsolete (for lack of a maintainer).
1872
1873 ** Miscellaneous
1874
1875 *** The Landmark game is now invoked with `landmark', not `lm'.
1876 Its functions and variables have been similarly renamed.
1877
1878 *** In `ido-file-completion-map', C-v is no longer bound to `ido-toggle-vc'.
1879 (This interfered with cua-mode.)
1880
1881 *** f90.el has some support for Fortran 2008 syntax.
1882
1883 *** `copyright-fix-years' can optionally convert consecutive years to ranges.
1884
1885 *** New command `nato-region' converts text to NATO phonetic alphabet.
1886
1887 \f
1888 * New Modes and Packages in Emacs 24.1
1889
1890 ** Occur Edit mode applies edits made in *Occur* buffers to the
1891 original buffers. It is bound to "e" in Occur mode.
1892
1893 ** New global minor mode electric-pair-mode.
1894 When enabled, typing an open parenthesis automatically inserts the
1895 matching closing one.
1896
1897 ** New global minor mode electric-indent-mode.
1898 When enabled, typing certain characters triggers reindentation.
1899 Major modes wishing to use this can set electric-indent-chars or
1900 electric-indent-functions.
1901
1902 ** New global minor mode electric-layout-mode.
1903 When enabled, typing certain characters automatically inserts newlines.
1904 Major modes wishing to use this can set electric-layout-rules.
1905
1906 ** tabulated-list.el provides a generic major mode for tabulated data,
1907 from which other modes can be derived.
1908
1909 ** pcase.el provides the ML-style pattern matching macro `pcase'.
1910
1911 ** secrets.el is an implementation of the Secret Service API, an
1912 interface to password managers like GNOME Keyring or KDE Wallet. The
1913 Secret Service API requires D-Bus for communication. The command
1914 `secrets-show-secrets' offers a buffer with a visualization of the
1915 secrets.
1916
1917 ** notifications.el provides an implementation of the Desktop
1918 Notifications API. It requires D-Bus for communication.
1919
1920 ** soap-client.el supports access to SOAP web services from Emacs.
1921 soap-inspect.el is an interactive inspector for SOAP WSDL structures.
1922
1923 ** New generic mode, xmodmap-generic-mode, for xmodmap files.
1924
1925 ** New emacs-lock.el package.
1926 The previous version has been moved to obsolete/old-emacs-lock.el.
1927 Now, there is a proper minor mode `emacs-lock-mode'. Protection
1928 against exiting Emacs and killing the buffer can be set separately.
1929 The mechanism for automatically turning off protection for buffers
1930 with dead inferior processes has been generalized.
1931
1932 \f
1933 * Incompatible Lisp Changes in Emacs 24.1
1934
1935 ** Passing a nil argument to a minor mode function call now ENABLES
1936 the minor mode unconditionally. This is so that you can write e.g.
1937
1938 (add-hook 'text-mode-hook 'foo-mode)
1939
1940 to enable foo-mode in Text mode buffers, removing the need for
1941 `turn-on-foo-mode' style functions. This affects all mode commands
1942 defined by `define-minor-mode'. If called interactively, the mode
1943 command still toggles the minor mode.
1944
1945 ** The return value of `backup-buffer' has changed.
1946 It is now a list of three elements, where the second element is a list
1947 describing the original file's SELinux context. If Emacs or the
1948 system lacks SELinux support, the context list is (nil nil nil nil).
1949 See "Basic SELinux support" above, under "Changes in Emacs 24.1".
1950
1951 ** `char-direction-table' and the `char-direction' function were deleted.
1952 They were buggy and inferior to the new support of bidirectional
1953 editing introduced in Emacs 24. If you need the bidirectional
1954 properties of a character, use `get-char-code-property' with the last
1955 argument `bidi-class'.
1956
1957 ** `copy-directory' now copies the source directory as a subdirectory
1958 of the target directory, if the latter is an existing directory. The
1959 new optional arg COPY-CONTENTS, if non-nil, makes the function copy
1960 the contents directly into a pre-existing target directory.
1961
1962 ** For mouse click input events in the text area, the Y pixel
1963 coordinate in the POSITION list now counts from the top of the text
1964 area, excluding any header line. Previously, it counted from the top
1965 of the header line.
1966
1967 ** Support for "old-style" backquotes, obsolete for 10+ years, has
1968 been further reduced. Now a backquote not followed by a space is
1969 always treated as a "new-style" backquote. Please remove all
1970 "old-style" backquotes from your code. If your code uses backquotes
1971 as documented in the Elisp manual, and compiles without warning, then
1972 you have nothing to do in this regard. Code not following the
1973 appropriate conventions may fail to compile.
1974
1975 The most common cause of trouble seems to be an old-style backquote
1976 followed by a newline. Another cause of trouble is vector notation
1977 for key sequence notation: instead of [(control ,)] and [(control ')],
1978 you should write [(control ?,)] and [(control ?')], which will work in
1979 older Emacsen too.
1980
1981 ** The macro `eval-at-startup' was removed in Emacs 23.2, but this
1982 was not advertised at the time. The function `custom-initialize-delay'
1983 replaced all known uses.
1984
1985 ** `view-buffer' now treats special mode-class in the same way that
1986 `view-file' has since Emacs 22 (i.e. it won't enable View mode if the
1987 major mode is special).
1988
1989 ** Menu and tool bar changes
1990
1991 *** During startup, Emacs no longer adds entries for `menu-bar-lines'
1992 and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
1993 With these alist entries omitted, `make-frame' checks the value of the
1994 variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
1995 a menu-bar or tool-bar, respectively. If the alist entries are added,
1996 they override the value of `menu-bar-mode'/`tool-bar-mode'.
1997
1998 *** The menu bar bindings's caches are not used any more.
1999 Use (where-is-internal <def> nil t) instead.
2000
2001 ** Regions created by mouse dragging are now normal active regions,
2002 similar to those created by shift-selection (see Selection changes
2003 above). In previous Emacs versions, these regions were delineated by
2004 `mouse-drag-overlay'; that variable has been removed.
2005
2006 ** The fourth argument of `filter-buffer-substring' has been removed.
2007 If you want to remove text properties from the final result, simply
2008 pass the result through substring-no-properties.
2009
2010 ** cl.el no longer provides `cl-19'.
2011
2012 ** The following obsolete functions and aliases have been removed
2013 (the appropriate new function is given in parentheses; "not needed"
2014 means you can just remove all calls to the function in question):
2015
2016 *** `comint-kill-output' (`comint-delete-output')
2017 *** `decompose-composite-char' (`char-to-string')
2018 *** `outline-visible' (`outline-invisible-p')
2019 *** `internal-find-face' (`facep')
2020 *** `internal-get-face' (`facep and check-face')
2021 *** `frame-update-faces' (not needed)
2022 *** `frame-update-face-colors' (`frame-set-background-mode')
2023 *** `x-frob-font-weight' and `x-frob-font-slant' (`make-face-*' functions)
2024 *** `x-make-font-bold and x-make-font-demibold (`make-face-bold')
2025 *** `x-make-font-italic' and `x-make-font-oblique' (`make-face-italic')
2026 *** `x-make-font-bold-italic' (`make-face-bold-italic')
2027 *** `x-make-font-unbold' (`make-face-unbold')
2028 *** `x-make-font-unitalic' (`make-face-unitalic')
2029 *** `mldrag-drag-mode-line' (`mouse-drag-mode-line')
2030 *** `mldrag-drag-vertical-line' (`mouse-drag-vertical-line')
2031 *** `iswitchb-default-keybindings' (`iswitchb-mode')
2032 *** `char-bytes' (== 1)
2033 *** `isearch-return-char' (`isearch-printing-char')
2034 *** `make-local-hook' (not needed)
2035 *** `set-screen-height' (`set-frame-height')
2036 *** `set-screen-width' (`set-frame-width')
2037
2038 ** The following obsolete variables and varaliases have been removed
2039 (the appropriate new variable is given in parentheses):
2040
2041 *** `checkdoc-minor-keymap' (`checkdoc-minor-mode-map')
2042 *** `vc-header-alist' (`vc-BACKEND-header')
2043 *** `directory-sep-char' (== ?/)
2044 *** `font-lock-defaults-alist' (`font-lock-defaults')
2045 *** `e' (`float-e').
2046
2047 ** The following obsolete files were removed:
2048 sc.el, x-menu.el, rnews.el, rnewspost.el
2049
2050 ** The format of the finder-inf.el file has changed, since the Finder
2051 mechanism is now based on the package system. The variable
2052 `finder-package-info' is replaced by `package--builtins' and
2053 `finder-keywords-hash'.
2054
2055 ** When generating autoloads, `update-directory-autoloads' no longer
2056 assumes every inspected file is in your `load-path'. It instead
2057 generates relative names according to the current `load-path'.
2058
2059 \f
2060 * Lisp changes in Emacs 24.1
2061
2062 ** Code can now use lexical scoping by default instead of dynamic scoping.
2063 The `lexical-binding' variable enables lexical scoping for local
2064 variables. It is typically set via a file-local variable in the first
2065 line of the file, in which case it applies to all the code in that
2066 file.
2067
2068 *** `eval' takes a new optional argument `lexical' to choose the new lexical
2069 binding instead of the old dynamic binding mode.
2070
2071 *** Lexically scoped interpreted functions are represented with a new form
2072 of function value which looks like (closure ENV ARGS &rest BODY).
2073
2074 *** New macro `letrec' to define recursive local functions.
2075
2076 *** `defvar' and `defconst' now mark the variable as special (dynamic).
2077 So do `defcustom' and other forms that call `defvar' as a subroutine.
2078
2079 *** New function `special-variable-p' to check whether a variable is
2080 declared as dynamically bound.
2081
2082 *** The form ((lambda ...) ...) is deprecated.
2083
2084 ** An Emacs Lisp testing tool is now included.
2085 Emacs Lisp developers can use this tool to write automated tests for
2086 their code. See the ERT info manual for details.
2087
2088 ** Changes for bidirectional display and editing
2089
2090 *** New function `current-bidi-paragraph-direction'.
2091 This returns the base direction of the paragraph at point.
2092
2093 *** New function `bidi-string-mark-left-to-right'.
2094 Given a string containing characters from right-to-left scripts, this
2095 function returns another string which can be safely inserted into a
2096 buffer, such that any following text will be always displayed to the
2097 right of that string. (This works by appending an invisible Unicode
2098 "LEFT-TO-RIGHT MARK" character if the argument string might need it.)
2099
2100 This is useful when the buffer has overall left-to-right paragraph
2101 direction and you need to insert a string whose contents are not known
2102 in advance, without disrupting the layout of the line.
2103
2104 ** Window changes
2105
2106 *** Window tree functions are accessible in Elisp.
2107 Functions are provided to return the parent, siblings or child windows
2108 of any window including internal windows (windows not associated with a
2109 buffer) in the window tree.
2110
2111 **** New function `window-valid-p' gives non-nil for live and internal
2112 windows.
2113
2114 **** Window manipulation can deal with internal windows.
2115 Many window handling functions like `split-window', `delete-window', or
2116 `delete-other-windows' as well as the window resizing functions can now
2117 act on any window including internal ones.
2118
2119 *** window-total-height/-width vs window-body-height/-width.
2120 The function `window-height' has been renamed to `window-total-height'
2121 and `window-width' has been renamed to `window-body-width'. The old
2122 names are provided as aliases. Two new functions `window-total-width'
2123 and `window-body-height' are provided.
2124
2125 *** Window parameters specific to window handling functions.
2126 For each window you can specify a parameter to override the default
2127 behavior of a number of functions like `split-window', `delete-window'
2128 and `delete-other-windows'. The variable `ignore-window-parameters'
2129 allows to ignore processing such parameters.
2130
2131 *** New semantics of third argument of `split-window'.
2132 The third argument of `split-window' has been renamed to SIDE and can be
2133 set to any of the values 'below, 'right, 'above, or 'left to make the
2134 new window appear on the corresponding side of the window that shall be
2135 split. Any other value of SIDE will cause `split-window' to split the
2136 window into two side-by-side windows as before.
2137
2138 *** Window resizing functions.
2139 A new standard function for resizing windows called `window-resize' has
2140 been introduced. This and all other functions for resizing windows no
2141 longer delete any windows when they become too small.
2142
2143 *** Deleting the selected window now selects the most recently selected
2144 live window on that frame instead.
2145
2146 *** `adjust-window-trailing-edge' adjustments.
2147 `adjust-window-trailing-edge' can now deal with fixed-size windows and
2148 is able to resize other windows if a window adjacent to the trailing
2149 edge cannot be shrunk any more. This makes its behavior more similar to
2150 that of Emacs 21 without compromising, however, its inability to delete
2151 windows which was introduced in Emacs 22.
2152
2153 *** Window-local buffer lists.
2154 Windows now have local buffer lists. This means that removing a buffer
2155 from display in a window will preferably show the buffer previously
2156 shown in that window with its previous window-start and window-point
2157 positions. This also means that the same buffer may be automatically
2158 shown twice even if it already appears in another window.
2159
2160 *** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW,
2161 which if non-nil requires the buffer to be displayed in the currently
2162 selected window, signaling an error otherwise. If nil, another window
2163 can be used, e.g. if the selected one is strongly dedicated.
2164
2165 *** `split-window-vertically' and `split-window-horizontally' renamed
2166 to `split-window-below' and `split-window-right' respectively.
2167 The old names are kept as aliases.
2168
2169 *** Display actions
2170
2171 **** The second arg to `display-buffer' and `pop-to-buffer' is now
2172 named ACTION, and takes a display action of the same form as
2173 `display-buffer-base-action' (see Changes, above). A non-nil,
2174 non-list value is treated specially, as the old meaning.
2175
2176 **** New variable `display-buffer-overriding-action'.
2177
2178 **** The procedure of `display-buffer' etc. to choose a window is
2179 determined by combining `display-buffer-overriding-action',
2180 `display-buffer-alist', the ACTION arg, `display-buffer-base-action',
2181 and `display-buffer-fallback-action'. The second and fourth of these
2182 are user-customizable variables.
2183
2184 See the docstring of `display-buffer' for details.
2185
2186 *** New functions `window-state-get' and `window-state-put'.
2187 These functions allow to save and restore the state of an arbitrary
2188 frame or window as an Elisp object.
2189
2190 ** Completion
2191
2192 *** New variable `completion-extra-properties' used to specify extra
2193 properties of the current completion:
2194 - :annotate-function, same as the old completion-annotate-function.
2195 - :exit-function, function to call after completion took place.
2196
2197 *** Functions on `completion-at-point-functions' can return any of the
2198 properties valid for `completion-extra-properties'.
2199
2200 *** `completion-annotate-function' is obsolete.
2201
2202 *** New `metadata' method for completion tables. The metadata thus returned
2203 can specify various details of the data returned by `all-completions':
2204 - `category' is the kind of objects returned (e.g., `buffer', `file', ...),
2205 used to select a style in completion-category-overrides.
2206 - `annotation-function' to add annotations in *Completions*.
2207 - `display-sort-function' to specify how to sort entries in *Completions*.
2208 - `cycle-sort-function' to specify how to sort entries when cycling.
2209
2210 *** `minibuffer-local-filename-must-match-map' is not used any more.
2211 Instead, the bindings in `minibuffer-local-filename-completion-map'
2212 are combined with `minibuffer-local-must-match-map'.
2213
2214 *** New variable `completing-read-function' allows overriding the
2215 behavior of `completing-read'.
2216
2217 ** `glyphless-char-display' can now distinguish between graphical and
2218 text terminal display, via a char-table entry that is a cons cell.
2219
2220 ** `pre-command-hook'/`post-command-hook' are not reset to nil on error.
2221 Instead, the offending function is removed.
2222
2223 ** New hook types
2224
2225 *** New function `run-hook-wrapped' for running an abnormal hook by
2226 passing the hook functions as arguments to a "wrapping" function.
2227 Like `run-hook-with-args-until-success', it stops at the first
2228 non-nil return value.
2229
2230 *** New macro `with-wrapper-hook' for running an abnormal hook as a
2231 set of "wrapping" filters, similar to around advice.
2232 (A version of this macro was actually added in Emacs 23.2 but was not
2233 advertised at the time.)
2234
2235 ** Debugger changes
2236
2237 *** New macro `condition-case-unless-debug' (this was actually added in
2238 Emacs 23.1 as condition-case-no-debug, but not advertised)
2239
2240 *** The macro `with-demoted-errors' was added in Emacs 23.1, but not advertised.
2241
2242 *** Variable `stack-trace-on-error' removed.
2243
2244 *** The debugger can now "continue" from an error, which means it will
2245 jump to the error handler as if the debugger had not been invoked
2246 instead of jumping all the way to the top-level.
2247
2248 *** Set `debug-on-event' to enter the debugger on events like SIGUSR1.
2249 This can be useful when `inhibit-quit' is set.
2250
2251 ** The new function `server-eval-at' allows evaluation of Lisp forms on
2252 named Emacs server instances.
2253
2254 ** `call-process' and `call-process-region' allow a `(:file "file")' spec
2255 to redirect STDOUT to a file.
2256
2257 ** The function `format-time-string' now supports the %N directive,
2258 for higher-resolution time stamps.
2259
2260 ** New input reading functions
2261
2262 *** New function `read-char-choice' reads a restricted set of
2263 characters, discarding any inputs not inside the set.
2264
2265 *** The command `read-color' now requires a match for a color name
2266 or RGB triplet, instead of signaling an error if the user provides
2267 invalid input.
2268
2269 **** `facemenu-read-color' is now an alias for `read-color'.
2270
2271 ** `image-library-alist' is renamed to `dynamic-library-alist'.
2272 The variable is now used to load all kind of supported dynamic libraries,
2273 not just image libraries. The previous name is still available as an
2274 obsolete alias.
2275
2276 ** Syntax parsing changes
2277
2278 *** New variable `syntax-propertize-function'.
2279 This replaces `font-lock-syntactic-keywords' which is now obsolete.
2280 This allows syntax-table properties to be set independently from font-lock:
2281 just call syntax-propertize to make sure the text is propertized.
2282 Together with this new variable come a new hook
2283 syntax-propertize-extend-region-functions, as well as two helper functions:
2284 syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
2285 as-is; and syntax-propertize-rules which provides a new way to specify
2286 syntactic rules.
2287
2288 *** Syntax tables support a new "comment style c" additionally to style b.
2289
2290 ** New hook `post-self-insert-hook', run after `self-insert-command'.
2291
2292 ** frame-local variables cannot be let-bound any more.
2293
2294 ** Major and minor mode changes
2295
2296 *** `set-auto-mode' now respects mode: local variables at the end of files,
2297 as well as those in the -*- line.
2298
2299 *** `prog-mode' is a new major mode from which programming modes
2300 should be derived.
2301
2302 **** `prog-mode-hook' can be used to enable features for programming
2303 modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable
2304 on-the-fly spell checking for comments and strings.
2305
2306 *** New hook `change-major-mode-after-body-hook', run by
2307 `run-mode-hooks' just before any other mode hooks.
2308
2309 *** Enabled globalized minor modes can be disabled in specific major modes.
2310 If the global mode is global-FOO-mode, then run (FOO-mode -1) in the
2311 major mode's hook, where FOO-mode toggles the mode on a per-buffer basis.
2312
2313 *** `define-minor-mode' accepts new keywords :variable, :after-hook.
2314
2315 ** File-handling changes
2316
2317 *** `delete-file' and `delete-directory' now accept optional arg TRASH.
2318 Trashing is performed if TRASH and `delete-by-moving-to-trash' are
2319 both non-nil. Interactively, TRASH defaults to t, unless a prefix
2320 argument is supplied (see Trash changes, above).
2321
2322 *** New file predicates: `file-equal-p', `file-in-directory-p'.
2323
2324 ** Tool-bars can display separators.
2325 Tool-bar separators are handled like menu separators in menu-bar maps,
2326 i.e. via menu entries of the form `(menu-item "--")'.
2327
2328 ** Image API
2329
2330 *** Animated images support (currently animated gifs only).
2331
2332 **** `image-animated-p' returns non-nil if an image can be animated.
2333
2334 **** `image-animate' animates a supplied image spec.
2335
2336 **** `image-animate-timer' returns the timer object for an image that
2337 is being animated.
2338
2339 *** `image-extension-data' has been renamed to `image-metadata'.
2340 The old name is an obsolete alias to the new one.
2341
2342 *** Image mode can view any image type that ImageMagick supports.
2343 This requires Emacs to be built with ImageMagick support.
2344
2345 **** New function `imagemagick-types', defined if ImageMagick support
2346 is enabled, returns a list of image file extensions that your
2347 ImageMagick installation supports.
2348
2349 **** New function `imagemagick-register-types' enables ImageMagick
2350 image types in Image mode and in `create-image' and other helper
2351 functions.
2352
2353 **** New option `imagemagick-types-inhibit' excludes certain
2354 ImageMagick image types from `imagemagick-register-types'.
2355
2356 **** With ImageMagick support, there are extra Image mode commands to
2357 resize and rotate images: `image-transform-fit-to-height',
2358 `image-transform-fit-to-width', `image-transform-set-rotation', and
2359 `image-transform-set-scale'.
2360
2361 ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
2362 passes it to the mail user agent function. This argument specifies an
2363 action for returning to the caller after finishing with the mail. For
2364 example, this is used by Rmail to optionally delete a mail window.
2365
2366 ** XML and HTML parsing
2367 If Emacs is compiled with libxml2 support, there are two new
2368 functions: `libxml-parse-html-region' (which parses "real world" HTML)
2369 and `libxml-parse-xml-region' (which parses XML). Both return an
2370 Emacs Lisp parse tree.
2371
2372 ** Networking and encryption changes
2373
2374 *** `open-network-stream' can now be used to open an encrypted stream.
2375 It now accepts an optional `:type' parameter for initiating a TLS
2376 connection, directly or via STARTTLS. To do STARTTLS, additional
2377 parameters (`:end-of-command', `:success', `:capabilities-command')
2378 must also be supplied.
2379
2380 *** New library gnutls.el.
2381 The new function `gnutls-available-p' returns non-nil if Emacs is
2382 built with GnuTLS support. The main entry points are
2383 `open-gnutls-stream' and `gnutls-negotiate'. It's easiest to use
2384 these functions through `open-network-stream', because that can
2385 upgrade connections through STARTTLS opportunistically or use plain
2386 SSL, depending on your needs. For debugging, set `gnutls-log-level'
2387 greater than 0.
2388
2389 *** New primitive `secure-hash' that supports many secure hash algorithms:
2390 md5, sha1, sha2, sha224, sha256, sha384, and sha512. The lisp library
2391 sha1.el has been removed. The `sha1' feature is provided by default.
2392
2393 ** Isearch
2394
2395 *** New hook `isearch-update-post-hook' that runs in `isearch-update'.
2396
2397 ** Progress reporters can now "spin".
2398 The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
2399 now be nil, or omitted. This makes a "non-numeric" reporter. Each
2400 time you call `progress-reporter-update' on that progress reporter,
2401 with a nil or omitted VALUE argument, the reporter message is
2402 displayed with a "spinning bar".
2403
2404 ** New variable `revert-buffer-in-progress-p' is true while a buffer is
2405 being reverted, even if the buffer has a local `revert-buffer-function'.
2406
2407 ** New variables `delayed-warnings-list' and `delayed-warnings-hook'.
2408 If delayed-warnings-list is non-nil, the command loop calls
2409 `delayed-warnings-hook' after `post-command-hook'. At present, this
2410 is only used by Emacs on some platforms to display warnings during
2411 startup, which might otherwise not be noticed. This uses the
2412 functions `display-delayed-warnings' and `collapse-delayed-warnings'.
2413
2414 ** rx.el has a new `group-n' construct for explicitly numbered groups.
2415
2416 ** New function `make-composed-keymap' that constructs a new keymap
2417 from multiple input maps. You can use this to make a keymap that
2418 inherits from multiple maps, eg:
2419 (set-keymap-parent newmap (make-composed-keymap othermap parent))
2420
2421 ** New function `string-prefix-p'.
2422 (This was actually added in Emacs 23.2 but was not advertised at the time.)
2423
2424 ** New reader macro ## that stands for the empty symbol.
2425 This means that the empty symbol can now be read back. Also, #: by itself
2426 (when not immediately followed by a possible symbol character) stands for
2427 an empty uninterned symbol.
2428
2429 ** New math functions `isnan', `copysign', `frexp', `ldexp'.
2430
2431 ** The following functions and variables are obsolete:
2432
2433 *** `tooltip-use-echo-area' is obsolete.
2434 Rather than setting this to t, disable Tooltip mode instead.
2435
2436 *** buffer-substring-filters is obsolete.
2437 Use `filter-buffer-substring-functions' instead.
2438
2439 *** `byte-compile-disable-print-circle' is obsolete.
2440
2441 *** `deferred-action-list' and `deferred-action-function' are obsolete.
2442 Use `post-command-hook' instead.
2443
2444 *** `font-lock-maximum-size' is obsolete.
2445
2446 \f
2447 * Changes in Emacs 24.1 on non-free operating systems
2448
2449 ** On MS Windows, Emacs warns when using the obsolete init file _emacs,
2450 and also when HOME is set to C:\ by default.
2451
2452 ** New configure.bat options
2453
2454 *** --enable-checking builds Emacs with extra runtime checks.
2455
2456 *** --distfiles specifies files to be included in binary distribution.
2457
2458 *** --without-gnutls disables automatic GnuTLS detection.
2459
2460 *** --lib for general library linkage, works with the USER_LIBS build variable.
2461
2462 ** New make target `dist' to create binary distribution for MS Windows.
2463
2464 ** The Lisp function `w32-default-color-map' is now obsolete.
2465 (It is only used internally in the Emacs C code.)
2466
2467 ** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but
2468 reappear on mouse-over. (Requires OS X 10.6 or later.)
2469
2470 ** On Mac OS X, dragging a file into Emacs visits the file, like on
2471 other platforms, rather than inserting its contents into the buffer.
2472
2473 \f
2474 ----------------------------------------------------------------------
2475 This file is part of GNU Emacs.
2476
2477 GNU Emacs is free software: you can redistribute it and/or modify
2478 it under the terms of the GNU General Public License as published by
2479 the Free Software Foundation, either version 3 of the License, or
2480 (at your option) any later version.
2481
2482 GNU Emacs is distributed in the hope that it will be useful,
2483 but WITHOUT ANY WARRANTY; without even the implied warranty of
2484 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2485 GNU General Public License for more details.
2486
2487 You should have received a copy of the GNU General Public License
2488 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
2489
2490 \f
2491 Local variables:
2492 mode: outline
2493 paragraph-separate: "[ \f]*$"
2494 end: