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[bpt/emacs.git] / etc / NEWS
1 GNU Emacs NEWS -- history of user-visible changes.
2
3 Copyright (C) 2010 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
18 Temporary note:
19 +++ indicates that the appropriate manual has already been updated.
20 --- means no change in the manuals is called for.
21 When you add a new item, please add it without either +++ or ---
22 so we will look at it and add it to the manual.
23
24 \f
25 * Installation Changes in Emacs 24.1
26
27 ** Configure links against libselinux if it is found.
28 You can disable this by using --without-selinux.
29
30 ---
31 ** By default, the installed Info and man pages are compressed.
32 You can disable this by configuring --without-compress-info.
33
34 ---
35 ** There are new configure options:
36 --with-mmdf, --with-mail-unlink, --with-mailhost.
37 These provide no new functionality, they just remove the need to edit
38 lib-src/Makefile by hand in order to use the associated features.
39
40 ---
41 ** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
42 to configure. Note that other libraries used by Emacs, RSVG and GConf,
43 also depend on Gtk+. You can disable them with --without-rsvg and
44 --without-gconf.
45
46 ** There is a new configure option --enable-use-lisp-union-type.
47 This is only useful for Emacs developers to debug certain types of bugs.
48 This is not a new feature; only the configure flag is new.
49
50 ---
51 ** New translation of the Emacs Tutorial in Hebrew is available
52 Type `C-u C-h t' to choose it in case your language setup doesn't
53 automatically select it.
54
55 \f
56 * Startup Changes in Emacs 24.1
57
58 ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
59 command line arguments, and the EMACS_UNIBYTE environment variable, no
60 longer have any effect. (They were declared obsolete in Emacs 23.)
61
62 \f
63 * Changes in Emacs 24.1
64
65 ** emacsclient changes
66
67 *** New emacsclient argument --parent-id ID can be used to open a
68 client frame in parent X window ID, via XEmbed. This works like the
69 --parent-id argument to Emacs.
70
71 *** If emacsclient shuts down as a result of Emacs signalling an
72 error, its exit status is 1.
73
74 ** Completion can cycle, depending on completion-cycle-threshold.
75
76 ** auto-mode-case-fold is now enabled by default.
77
78 +++
79 ** Emacs now supports display and editing of bidirectional text.
80
81 See the node "Bidirectional Editing" in the Emacs Manual for some
82 initial documentation.
83
84 To turn this on in any given buffer, set the buffer-local variable
85 `bidi-display-reordering' to a non-nil value. The default is nil.
86
87 The buffer-local variable `bidi-paragraph-direction', if non-nil,
88 forces each paragraph in the buffer to have its base direction
89 according to the value of this variable. Possible values are
90 `right-to-left' and `left-to-right'. If the value is nil (the
91 default), Emacs determines the base direction of each paragraph from
92 its text, as specified by the Unicode Bidirectional Algorithm.
93
94 The function `current-bidi-paragraph-direction' returns the actual
95 value of paragraph base direction at point.
96
97 Reordering of bidirectional text for display in Emacs is a "Full
98 bidirectionality" class implementation of the Unicode Bidirectional
99 Algorithm.
100
101 Note that some advanced display features, such as overlay strings and
102 `display' text properties, do not yet work correctly when
103 bidirectional text is reordered for display.
104
105 ** GTK scroll-bars are now placed on the right by default.
106 Use `set-scroll-bar-mode' to change this.
107
108 ** GTK tool bars can have just text, just images or images and text.
109 Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
110 is taken from the desktop settings.
111
112 ** GTK tool bars can be placed on the left/right or top/bottom of the frame.
113 The frame-parameter tool-bar-position controls this. It takes the values
114 top, left, right or bottom. The Options => Show/Hide menu has entries
115 for this.
116
117 ** ImageMagick support.
118 It is now possible to use the ImageMagick library to load many new
119 image formats in Emacs. By default, Emacs links with the ImageMagick
120 libraries if they are present at build time. To disable this, use
121 the configure option `--without-imagemagick'.
122
123 The new function `imagemagick-types' returns a list of image file
124 extensions that your installation of ImageMagick supports. The
125 function `imagemagick-register-types' enables ImageMagick support for
126 these image types, minus those listed in `imagemagick-types-inhibit'.
127
128 See the Emacs Lisp Reference Manual for more information.
129
130 ** The colors for selected text (the region face) are taken from the GTK
131 theme when Emacs is built with GTK.
132
133 ** Emacs uses GTK tooltips by default if built with GTK. You can turn that
134 off by customizing x-gtk-use-system-tooltips.
135
136 ** Lucid menus and dialogs can display antialiased fonts if Emacs is built
137 with Xft. To change font, use X resource faceName, for example:
138 Emacs.pane.menubar.faceName: Courier-12
139 Set faceName to none and use font to use the old X fonts.
140
141 +++
142 ** Enhanced support for characters that have no glyphs in available fonts
143 If a character has no glyphs in any of the available fonts, Emacs by
144 default will display it either as a hexadecimal code in a box or as a
145 thin 1-pixel space. In addition to these two methods, Emacs can
146 display these characters as empty box, as an acronym, or not display
147 them at all. To change how these characters are displayed, customize
148 the variable `glyphless-char-display-control'.
149
150 On character terminals these methods are used for characters that
151 cannot be encoded by the `terminal-coding-system'.
152
153 ** On graphical displays, the mode-line no longer ends in dashes.
154
155 ** Basic SELinux support has been added.
156 This requires Emacs to be linked with libselinux at build time.
157
158 *** Emacs preserves the SELinux file context when backing up, and
159 optionally when copying files. To this end, copy-file has an extra
160 optional argument, and backup-buffer and friends include the SELinux
161 context in their return values.
162
163 *** The new functions file-selinux-context and set-file-selinux-context
164 get and set the SELinux context of a file.
165
166 *** Tramp offers handlers for file-selinux-context and set-file-selinux-context
167 for remote machines which support SELinux.
168
169 ** The function kill-emacs is now run upon receipt of the signals SIGTERM
170 and SIGHUP, and upon SIGINT in batch mode.
171
172 ** kill-emacs-hook is now also run in batch mode.
173
174 ** New scrolling commands `scroll-up-command' and `scroll-down-command'
175 (bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
176 of buffer at first key-press (instead moves to top/bottom of buffer)
177 when a new variable `scroll-error-top-bottom' is non-nil.
178
179 ** New scrolling commands `scroll-up-line' and `scroll-down-line'
180 scroll a line instead of full screen.
181
182 ** New property `scroll-command' should be set on a command's symbol to
183 define it as a scroll command affected by `scroll-preserve-screen-position'.
184
185 ** Trash changes
186
187 *** `delete-by-moving-to-trash' now only affects commands that specify
188 trashing. This avoids inadvertently trashing temporary files.
189
190 *** Calling `delete-file' or `delete-directory' with a prefix argument
191 now forces true deletion, regardless of `delete-by-moving-to-trash'.
192
193 ** New option `list-colors-sort' defines the color sort order
194 for `list-colors-display'.
195
196 ** An Emacs Lisp package manager is now included.
197 This is a convenient way to download and install additional packages,
198 from a package repository at elpa.gnu.org.
199
200 *** `M-x list-packages' shows a list of packages, which can be
201 selected for installation.
202
203 *** New command `describe-package', bound to `C-h P'.
204
205 *** By default, all installed packages are loaded and activated
206 automatically when Emacs starts up. To disable this, set
207 `package-enable-at-startup' to nil. To change which packages are
208 loaded, customize `package-load-list'.
209
210 ** Custom Themes
211
212 *** `M-x customize-themes' lists Custom themes which can be enabled.
213
214 *** New option `custom-theme-load-path' is the load path for themes.
215 Emacs no longer looks for custom themes in `load-path'. The default
216 is to search in `custom-theme-directory', followed by a built-in theme
217 directory named "themes/" in `data-directory'.
218
219 ** The user option `remote-file-name-inhibit-cache' controls whether
220 the remote file-name cache is used for read access.
221
222 ** The standalone programs lib-src/digest-doc and sorted-doc have been
223 replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
224
225 \f
226 * Editing Changes in Emacs 24.1
227
228 +++
229 ** There is a new command `count-words-region', which does what you expect.
230
231 ** completion-at-point now handles tags and semantic completion.
232
233 ** The default value of `backup-by-copying-when-mismatch' is now t.
234
235 ** Deletion changes
236
237 *** New option `delete-active-region'.
238 If non-nil, C-d, [delete], and DEL delete the region if it is active
239 and no prefix argument is given. If set to `kill', these commands
240 kill instead.
241
242 *** New command `delete-forward-char', bound to C-d and [delete].
243 This is meant for interactive use, and obeys `delete-active-region'.
244 The command `delete-char' does not obey `delete-active-region'.
245
246 *** `delete-backward-char' is now a Lisp function.
247 Apart from obeying `delete-active-region', its behavior is unchanged.
248 However, the byte compiler now warns if it is called from Lisp; you
249 should use delete-char with a negative argument instead.
250
251 *** The option `mouse-region-delete-keys' has been deleted.
252
253 ** Selection changes.
254
255 The default handling of clipboard and primary selections has been
256 changed to conform with other X applications. The exact changes are
257 described below; in short, mouse commands to select and paste text now
258 use the primary selection, while all other commands for killing and
259 yanking text now use the clipboard.
260
261 *** Merely selecting text (e.g. with drag-mouse-1) does not add it to
262 the kill-ring. On systems with a primary selection separate from the
263 clipboard (such as X), the selected text is put in the primary
264 selection.
265
266 *** mouse-2 is now bound to `mouse-yank-primary', which pastes from
267 the primary selection regardless of the contents of the kill-ring.
268
269 *** Commands that kill text or copy it to the kill-ring (M-w, C-w,
270 C-k, etc.) also put the killed text into the clipboard. This change
271 also means that the "Copy", "Cut", and "Paste" items in the "Edit"
272 menu are now exactly equivalent to, respectively M-w, C-w, and C-y.
273
274 *** Yank commands, such as C-y and M-y, retrieve text from the
275 clipboard if it is available.
276
277 *** The above changes are reflected in the following new defaults:
278
279 **** `select-active-regions' now defaults to t.
280 It also accepts a new value, `only', which means to only set the
281 primary selection for temporarily active regions (usually made by
282 mouse-dragging or shift-selection).
283
284 **** `mouse-2' is now bound to `mouse-yank-primary'.
285 Previously, it was bound to `mouse-yank-at-click' (which is now
286 unbound by default).
287
288 **** `x-select-enable-clipboard' now defaults to t on all platforms.
289 Note that this variable was already non-nil by default on MS-Windows,
290 which does not support the primary selection between applications.
291
292 **** `x-select-enable-primary' now defaults to nil.
293 This variable exists only on X; its default value was t in previous
294 versions.
295
296 **** `mouse-drag-copy-region' now defaults to nil.
297
298 *** To return to the previous behavior, where mouse commands use the
299 clipboard, change `mouse-drag-copy-region' and (on X only)
300 `x-select-enable-primary' to t. If you don't want Emacs to put the
301 text into the clipboard, only to the primary selection, additionally
302 set `x-select-enable-clipboard' to nil.
303
304 *** Support for X cut buffers has been removed.
305
306 ** New command `rectangle-number-lines', bound to `C-x r N', numbers
307 the lines in the current rectangle. With an prefix argument, this
308 prompts for a number to count from and for a format string.
309
310 \f
311 * Changes in Specialized Modes and Packages in Emacs 24.1
312
313 ** shell-mode can track your cwd by reading it from your prompt.
314 Just set shell-dir-cookie-re to an appropriate regexp.
315
316 ** Modula-2 mode provides auto-indentation.
317
318 ** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
319
320 ** FIXME: xdg-open for browse-url and reportbug, 2010/08.
321
322 ** Archive Mode has basic support to browse 7z archives.
323
324 ** browse-url has gotten a new variable that is used for mailto: URLs,
325 `browse-url-mailto-function', which defaults to `browse-url-mail'.
326
327 ** ERC changes
328
329 *** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
330 If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
331 successful NickServ identification, or after `erc-autojoin-delay'
332 seconds. The default value, 'ident, means to autojoin immediately
333 after connecting.
334
335 *** New variable `erc-coding-system-precedence': If we use `undecided'
336 as the server coding system, this variable will then be consulted.
337 The default is to decode strings that can be decoded as utf-8 as
338 utf-8, and do the normal `undecided' decoding for the rest.
339
340 ** In ido-mode, C-v is no longer bound to ido-toggle-vc.
341 The reason is that this interferes with cua-mode.
342
343 ** partial-completion-mode is now obsolete.
344 You can get a comparable behavior with:
345 (setq completion-styles '(partial-completion initials))
346 (setq completion-pcm-complete-word-inserts-delimiters t)
347
348 ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
349
350 ** server can listen on a specific port using the server-port option.
351
352 ** Calendar, Diary, and Appt
353
354 ---
355 *** The obsolete (since Emacs 22.1) method of enabling the appt package
356 by adding appt-make-list to diary-hook has been removed. Use appt-activate.
357
358 ---
359 *** Some appt variables (obsolete since Emacs 22.1) have been removed:
360 appt-issue-message (use the function appt-activate)
361 appt-visible/appt-msg-window (use the variable appt-display-format)
362
363 ---
364 *** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
365 view-diary-entries, list-diary-entries, show-all-diary-entries
366
367 ** Customize
368
369 *** Customize buffers now contain a search field.
370 The search is performed using `customize-apropos'.
371 To turn off the search field, set custom-search-field to nil.
372
373 *** Custom options now start out hidden if at their default values.
374 Use the arrow to the left of the option name to toggle visibility.
375
376 *** custom-buffer-sort-alphabetically now defaults to t.
377
378 *** The color widget now has a "Choose" button, which allows you to
379 choose a color via list-colors-display.
380
381 ** Dired-x
382
383 *** dired-jump and dired-jump-other-window called with a prefix argument
384 read a file name from the minibuffer instead of using buffer-file-name.
385
386 ** Directory local variables can apply to file-less buffers.
387 For example, adding "(diff-mode . ((mode . whitespace)))" to your
388 .dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
389
390 ** SQL Mode enhancements.
391
392 *** Several variables have been marked as safe local variables. The
393 variables `sql-product', `sql-user', `sql-server', `sql-database' and
394 `sql-port' can now be safely used as local variables.
395
396 *** `sql-dialect' is a synonym for `sql-product'.
397
398 *** Added ability to login with a port on MySQL and Postgres.
399 The custom variable `sql-port' can be specified for connection to
400 MySQL or Postgres servers. By default, the port is not listed in
401 either login parameter, but will be added to the command line if set
402 to a non-zero value.
403
404 *** Dynamic selection of product in an SQL interactive session.
405 If you use `sql-product-interactive' to start an SQL interactive
406 session it uses the current value of `sql-product'. Preceding the
407 invocation with C-u will force it to ask for the product before
408 creating the session.
409
410 *** Renaming a SQL interactive buffer when it is created.
411 Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
412 `sql-mysql', etc.) with C-u will force a new interactive session to be
413 started and will prompt for the new name. This will reduce the need
414 for `sql-rename-buffer' is most common use cases.
415
416 *** Command continuation prompts in SQL interactive mode are suppressed.
417 Multiple line commands in SQL interactive mode, generate command
418 continuation prompts which needlessly confuse the output. These
419 prompts are now filtered out from the output. This change impacts
420 multiple line SQL statements entered with C-j between each line,
421 statements yanked into the buffer and statements sent with
422 `sql-send-*' functions.
423
424 *** Custom variables control prompting for login parameters.
425 Each supported product has a custom variable `sql-*-login-params'
426 which is a list of the parameters to be prompted for before a
427 connection is established.
428
429 The lists consist of the following five tokens: `user', `password',
430 `database', `server', and `port'. The order in which they appear is
431 the order in which they are prompted. The tokens symbols can be
432 replaced by a sublist starting with the token and followed by a plist
433 which control the prompting for values. The tokens `user',
434 `database', and `server' each can take a property of :default which
435 specifies the value to be used if no value is entered. The
436 `database', `server', and `port' tokens handle the :completion
437 property which restricts the entry to either one of the values in the
438 list or to one of the values returned by the function provided as the
439 property value. The `database' and `server' tokens also accept the
440 :file property whose value is a regexp to identify useful file names.
441
442 (user :default DEF)
443 (database :default DEF
444 :file FILEPAT
445 :completion COMPLETE)
446 (server :default DEF
447 :file FILEPAT
448 :completion COMPLETE)
449
450 The FILEPAT when :file is specified is a regexp that will match valid
451 file names (without the directory portion). Generally these strings
452 will be of the form ".+\.SUF" where SUF is the desired file suffix.
453
454 When :completion is specified, the COMPLETE corresponds to the
455 PREDICATE argument to the `completing-read' function (a list of
456 possible values or a function returning such a list).
457
458 *** Added `sql-connection-alist' to record login parameter values.
459 An alist for recording different username, database and server
460 values. If there are multiple databases that you connect to the
461 parameters needed can be stored in this alist.
462
463 For example, the following might be set in the user's init.el:
464
465 (setq sql-connection-alist
466 '((dev (sql-product 'sqlite)
467 (sql-database "/home/mmaug/dev.db"))
468 (prd (sql-product 'oracle)
469 (sql-user "mmaug")
470 (sql-database "iprd2a"))))
471
472 This defines two connections named "dev" and "prd".
473
474 *** Added `sql-connect' to use predefined connections.
475 Sets the login parameters based on the values in the
476 `sql-connection-alist' and start a SQL interactive session. Any
477 values specified in the connection will not be prompted for.
478
479 In the example above, if the user were to invoke M-x sql-connect, they
480 would be prompted for the connection. The user can respond with
481 either "dev" or "prd". The "dev" connection would connect to the
482 SQLite database without prompting; the "prd" connection would prompt
483 for the users password and then connect to the Oracle database.
484
485 **** Added SQL->Start... submenu when connections are defined.
486 When connections have been defined, there is a submenu available that
487 allows the user to select one to start a SQLi session. The "Start
488 SQLi Session" item moves to the "Start..." submenu when cnnections
489 have been defined.
490
491 **** Added "Save Connection" menu item in SQLi buffers.
492 When a SQLi session is not started by a connection then
493 `sql-save-connection' will gather the login params specified for the
494 session and save them as a new connection.
495
496 *** List database objects and details.
497 Once a SQL interactive session has been started, you can get a list of
498 the objects in the database and see details of those objects. The
499 objects shown and the details available are product specific.
500
501 **** List all objects.
502 Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
503 objects" will list all the objects in the database. At a minimum it
504 lists the tables and views in the database. Preceeding the command by
505 universal argument may provide additional details or extend the
506 listing to include other schemas objects. The list will appear in a
507 separate window in view-mode.
508
509 **** List Table details.
510 Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
511 details" will ask for the name of a database table or view and display
512 the list of columns in the relation. Preceeding the comand with the
513 universal argument may provide additional details about each column.
514 The list will appear in a separate window in view-mode.
515
516 *** Added option `sql-send-terminator'.
517 When set makes sure that each command sent with `sql-send-*' commands
518 are properly terminated and submitted to the SQL processor.
519
520 *** Added option `sql-oracle-scan-on'.
521 When set commands sent to Oracle's SQL*Plus are scanned for strings
522 starting with an ampersand and the user is asked for replacement text.
523 In general, the SQL*Plus option SCAN should always be set OFF under
524 SQL interactive mode and this option used in its place.
525
526 *** SQL interactive mode will replace tabs with spaces.
527 This prevents the comand interpretter for MySQL and Postgres from
528 listing object name completions when being sent text via
529 `sql-send-*' functions.
530
531 *** An API for manipulating SQL product definitions has been added.
532
533 ** s-region.el is now declared obsolete, superceded by shift-select-mode
534 enabled by default in 23.1.
535
536 ** gdb-mi
537
538 *** GDB User Interface migrated to GDB Machine Interface and now
539 supports multithread non-stop debugging and debugging of several
540 threads simultaneously.
541
542 ** D-Bus
543
544 *** It is possible now, to access alternative buses than the default
545 system or session bus.
546
547 ** Tramp
548
549 *** There exists a new inline access method "ksu" (kerberized su).
550
551 *** The following access methods are discontinued: "ssh1_old",
552 "ssh2_old", "scp1_old", "scp2_old" and "fish".
553
554 ** VC and related modes
555
556 *** Support for pulling on distributed version control systems.
557 The vc-update command now runs a "pull" operation, if it is supported.
558 This updates the current branch from upstream. A prefix argument
559 means to prompt the user for command specifics, e.g. a pull location.
560
561 **** vc-pull is an alias for vc-update.
562
563 **** Currently supported by Bzr.
564
565 *** Support for merging on distributed version control systems.
566 The vc-merge command now runs a "merge" operation, if it is supported.
567 This merges another branch into the current one. A prefix argument
568 means to prompt the user for command specifics, e.g. a merge location.
569
570 **** Currently supported by Bzr.
571
572 \f
573 * New Modes and Packages in Emacs 24.1
574
575 ** New global minor modes electric-pair-mode, electric-indent-mode,
576 and electric-layout-mode.
577
578 ** pcase.el provides the ML-style pattern matching macro `pcase'.
579
580 ** secrets.el is an implementation of the Secret Service API, an
581 interface to password managers like GNOME Keyring or KDE Wallet. The
582 Secret Service API requires D-Bus for communication. The command
583 `secrets-show-secrets' offers a buffer with a visualization of the
584 secrets.
585
586 ** notifications.el provides an implementation of the Desktop
587 Notifications API. It requires D-Bus for communication.
588
589 \f
590 * Incompatible Lisp Changes in Emacs 24.1
591
592 ** For mouse click input events in the text area, the Y pixel
593 coordinate in the POSITION list now counts from the top of the text
594 area, excluding any header line. Previously, it counted from the top
595 of the header line.
596
597 ** Remove obsolete name `e' (use `float-e' instead).
598
599 ** A backquote not followed by a space is now always treated as new-style.
600
601 ** Test for special mode-class was moved from view-file to view-buffer.
602 FIXME: This only says what was changed, but not what are the
603 programmer-visible consequences.
604
605 ** Passing a nil argument to a minor mode function now turns the mode
606 ON unconditionally.
607
608 ** During startup, Emacs no longer adds entries for `menu-bar-lines'
609 and `tool-bar-lines' to `default-frame-alist' and
610 `initial-frame-alist'. With these alist entries omitted, `make-frame'
611 checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
612 determine whether to create a menu-bar or tool-bar, respectively.
613 If the alist entries are added, they override the value of
614 `menu-bar-mode'/`tool-bar-mode'.
615
616 ** Regions created by mouse dragging are now normal active regions,
617 similar to the ones created by shift-selection. In previous Emacs
618 versions, these regions were delineated by `mouse-drag-overlay', which
619 has now been removed.
620
621 ** cl.el no longer provides `cl-19'.
622
623 ** The following functions and aliases, obsolete since at least Emacs 21.1,
624 have been removed:
625 comint-kill-output, decompose-composite-char, outline-visible,
626 internal-find-face, internal-get-face, frame-update-faces,
627 frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
628 x-make-font-bold, x-make-font-demibold, x-make-font-unbold
629 x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
630 x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
631 iswitchb-default-keybindings, char-bytes, isearch-return-char,
632 make-local-hook
633
634 ** The following variables and aliases, obsolete since at least Emacs 21.1,
635 have been removed:
636 checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
637 font-lock-defaults-alist
638
639 ** The following files, obsolete since at least Emacs 21.1, have been removed:
640 sc.el, x-menu.el, rnews.el, rnewspost.el
641
642 ** FIXME finder-inf.el changes.
643
644 \f
645 * Lisp changes in Emacs 24.1
646
647 ** `image-library-alist' is renamed to `dynamic-library-alist'.
648 The variable is now used to load all kind of supported dynamic libraries,
649 not just image libraries. The previous name is still available as an
650 obsolete alias.
651
652 ** New variable syntax-propertize-function to set syntax-table properties.
653 Replaces font-lock-syntactic-keywords which are now obsolete.
654 This allows syntax-table properties to be set independently from font-lock:
655 just call syntax-propertize to make sure the text is propertized.
656 Together with this new variable come a new hook
657 syntax-propertize-extend-region-functions, as well as two helper functions:
658 syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
659 as-is; and syntax-propertize-rules which provides a new way to specify
660 syntactic rules.
661
662 ** New hook post-self-insert-hook run at the end of self-insert-command.
663
664 +++
665 ** Syntax tables support a new "comment style c" additionally to style b.
666 ** frame-local variables cannot be let-bound any more.
667 ** prog-mode is a new major-mode meant to be the parent of programming mode.
668 ** define-minor-mode accepts a new keyword :variable.
669
670 ** `delete-file' and `delete-directory' now accept optional arg TRASH.
671 Trashing is performed if TRASH and `delete-by-moving-to-trash' are
672 both non-nil. Interactively, TRASH defaults to t, unless a prefix
673 argument is supplied (see Trash changes, above).
674
675 ** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
676
677 ** New completion style `substring'.
678
679 ** `facemenu-read-color' is now an alias for `read-color'.
680 The command `read-color' now requires a match for a color name or RGB
681 triplet, instead of signalling an error if the user provides a invalid
682 input.
683
684
685 ** Image API
686
687 *** When the image type is one of listed in `image-animated-types'
688 and the number of sub-images in the image is more than one, then the
689 new function `create-animated-image' creates an animated image where
690 sub-images are displayed successively with the duration defined by
691 `image-animate-max-time' and the delay between sub-images defined
692 by the Graphic Control Extension of the image.
693
694 *** `image-extension-data' is renamed to `image-metadata'.
695
696 ** XML and HTML parsing
697
698 *** If Emacs is compiled with libxml2 support (which is the default),
699 two new Emacs Lisp-level functions are defined:
700 `xml-parse-html-string-internal' (which will parse "real world" HTML)
701 and `xml-parse-string-internal' (which parses XML). Both return an
702 Emacs Lisp parse tree.
703
704 FIXME: These should be front-ended by xml.el.
705
706 ** FIXME GnuTLS
707
708 ** Isearch
709
710 *** New hook `isearch-update-post-hook' that runs in `isearch-update'.
711
712 ** Progress reporters can now "spin".
713 The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
714 now be nil, or omitted. This makes a "non-numeric" reporter. Each
715 time you call `progress-reporter-update' on that progress reporter,
716 with a nil or omitted VALUE argument, the reporter message is
717 displayed with a "spinning bar".
718
719 \f
720 * Changes in Emacs 24.1 on non-free operating systems
721
722 ** New configure.bat option --enable-checking builds emacs with extra
723 runtime checks.
724
725 ** New configure.bat option --distfiles to specify files to be
726 included in binary distribution
727
728 ** New make target `dist' to create binary disttribution for Windows
729 platform
730
731 \f
732 ----------------------------------------------------------------------
733 This file is part of GNU Emacs.
734
735 GNU Emacs is free software: you can redistribute it and/or modify
736 it under the terms of the GNU General Public License as published by
737 the Free Software Foundation, either version 3 of the License, or
738 (at your option) any later version.
739
740 GNU Emacs is distributed in the hope that it will be useful,
741 but WITHOUT ANY WARRANTY; without even the implied warranty of
742 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
743 GNU General Public License for more details.
744
745 You should have received a copy of the GNU General Public License
746 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
747
748 \f
749 Local variables:
750 mode: outline
751 paragraph-separate: "[ \f]*$"
752 end: