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1 GNU Emacs NEWS -- history of user-visible changes.
2
3 Copyright (C) 2010, 2011 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 ** The variable `focus-follows-mouse' now always defaults to nil.
226
227 \f
228 * Editing Changes in Emacs 24.1
229
230 +++
231 ** There is a new command `count-words-region', which does what you expect.
232
233 ** completion-at-point now handles tags and semantic completion.
234
235 ** The default value of `backup-by-copying-when-mismatch' is now t.
236
237 ** The command `just-one-space' (C-SPC), if given a negative argument,
238 also deletes newlines around point.
239
240 ** Deletion changes
241
242 *** New option `delete-active-region'.
243 If non-nil, C-d, [delete], and DEL delete the region if it is active
244 and no prefix argument is given. If set to `kill', these commands
245 kill instead.
246
247 *** New command `delete-forward-char', bound to C-d and [delete].
248 This is meant for interactive use, and obeys `delete-active-region'.
249 The command `delete-char' does not obey `delete-active-region'.
250
251 *** `delete-backward-char' is now a Lisp function.
252 Apart from obeying `delete-active-region', its behavior is unchanged.
253 However, the byte compiler now warns if it is called from Lisp; you
254 should use delete-char with a negative argument instead.
255
256 *** The option `mouse-region-delete-keys' has been deleted.
257
258 ** Selection changes.
259
260 The default handling of clipboard and primary selections has been
261 changed to conform with other X applications. The exact changes are
262 described below; in short, mouse commands to select and paste text now
263 use the primary selection, while all other commands for killing and
264 yanking text now use the clipboard.
265
266 *** Merely selecting text (e.g. with drag-mouse-1) does not add it to
267 the kill-ring. On systems with a primary selection separate from the
268 clipboard (such as X), the selected text is put in the primary
269 selection.
270
271 *** mouse-2 is now bound to `mouse-yank-primary', which pastes from
272 the primary selection regardless of the contents of the kill-ring.
273
274 *** Commands that kill text or copy it to the kill-ring (M-w, C-w,
275 C-k, etc.) also put the killed text into the clipboard. This change
276 also means that the "Copy", "Cut", and "Paste" items in the "Edit"
277 menu are now exactly equivalent to, respectively M-w, C-w, and C-y.
278
279 *** Yank commands, such as C-y and M-y, retrieve text from the
280 clipboard if it is available.
281
282 *** The above changes are reflected in the following new defaults:
283
284 **** `select-active-regions' now defaults to t.
285 It also accepts a new value, `only', which means to only set the
286 primary selection for temporarily active regions (usually made by
287 mouse-dragging or shift-selection).
288
289 **** `mouse-2' is now bound to `mouse-yank-primary'.
290 Previously, it was bound to `mouse-yank-at-click' (which is now
291 unbound by default).
292
293 **** `x-select-enable-clipboard' now defaults to t on all platforms.
294 Note that this variable was already non-nil by default on MS-Windows,
295 which does not support the primary selection between applications.
296
297 **** `x-select-enable-primary' now defaults to nil.
298 This variable exists only on X; its default value was t in previous
299 versions.
300
301 **** `mouse-drag-copy-region' now defaults to nil.
302
303 *** To return to the previous behavior, where mouse commands use the
304 clipboard, change `mouse-drag-copy-region' and (on X only)
305 `x-select-enable-primary' to t. If you don't want Emacs to put the
306 text into the clipboard, only to the primary selection, additionally
307 set `x-select-enable-clipboard' to nil.
308
309 *** Support for X cut buffers has been removed.
310
311 ** New command `rectangle-number-lines', bound to `C-x r N', numbers
312 the lines in the current rectangle. With an prefix argument, this
313 prompts for a number to count from and for a format string.
314
315 \f
316 * Changes in Specialized Modes and Packages in Emacs 24.1
317
318 ** shell-mode can track your cwd by reading it from your prompt.
319 Just set shell-dir-cookie-re to an appropriate regexp.
320
321 ** Modula-2 mode provides auto-indentation.
322
323 ** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
324
325 ** FIXME: xdg-open for browse-url and reportbug, 2010/08.
326
327 ** Archive Mode has basic support to browse 7z archives.
328
329 ** browse-url has gotten a new variable that is used for mailto: URLs,
330 `browse-url-mailto-function', which defaults to `browse-url-mail'.
331
332 ** ERC changes
333
334 *** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
335 If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
336 successful NickServ identification, or after `erc-autojoin-delay'
337 seconds. The default value, 'ident, means to autojoin immediately
338 after connecting.
339
340 *** New variable `erc-coding-system-precedence': If we use `undecided'
341 as the server coding system, this variable will then be consulted.
342 The default is to decode strings that can be decoded as utf-8 as
343 utf-8, and do the normal `undecided' decoding for the rest.
344
345 ** Eshell changes
346
347 *** The default value of eshell-directory-name is a directory named
348 "eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
349 exists, that is used instead.
350
351 ** In ido-mode, C-v is no longer bound to ido-toggle-vc.
352 The reason is that this interferes with cua-mode.
353
354 ** partial-completion-mode is now obsolete.
355 You can get a comparable behavior with:
356 (setq completion-styles '(partial-completion initials))
357 (setq completion-pcm-complete-word-inserts-delimiters t)
358
359 ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
360
361 ** server can listen on a specific port using the server-port option.
362
363 ** Calendar, Diary, and Appt
364
365 ---
366 *** The obsolete (since Emacs 22.1) method of enabling the appt package
367 by adding appt-make-list to diary-hook has been removed. Use appt-activate.
368
369 ---
370 *** Some appt variables (obsolete since Emacs 22.1) have been removed:
371 appt-issue-message (use the function appt-activate)
372 appt-visible/appt-msg-window (use the variable appt-display-format)
373
374 ---
375 *** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
376 view-diary-entries, list-diary-entries, show-all-diary-entries
377
378 ** Customize
379
380 *** Customize buffers now contain a search field.
381 The search is performed using `customize-apropos'.
382 To turn off the search field, set custom-search-field to nil.
383
384 *** Custom options now start out hidden if at their default values.
385 Use the arrow to the left of the option name to toggle visibility.
386
387 *** custom-buffer-sort-alphabetically now defaults to t.
388
389 *** The color widget now has a "Choose" button, which allows you to
390 choose a color via list-colors-display.
391
392 ** Dired-x
393
394 *** dired-jump and dired-jump-other-window called with a prefix argument
395 read a file name from the minibuffer instead of using buffer-file-name.
396
397 ** Directory local variables can apply to file-less buffers.
398 For example, adding "(diff-mode . ((mode . whitespace)))" to your
399 .dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
400
401 ** SQL Mode enhancements.
402
403 *** Several variables have been marked as safe local variables. The
404 variables `sql-product', `sql-user', `sql-server', `sql-database' and
405 `sql-port' can now be safely used as local variables.
406
407 *** `sql-dialect' is a synonym for `sql-product'.
408
409 *** Added ability to login with a port on MySQL and Postgres.
410 The custom variable `sql-port' can be specified for connection to
411 MySQL or Postgres servers. By default, the port is not listed in
412 either login parameter, but will be added to the command line if set
413 to a non-zero value.
414
415 *** Dynamic selection of product in an SQL interactive session.
416 If you use `sql-product-interactive' to start an SQL interactive
417 session it uses the current value of `sql-product'. Preceding the
418 invocation with C-u will force it to ask for the product before
419 creating the session.
420
421 *** Renaming a SQL interactive buffer when it is created.
422 Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
423 `sql-mysql', etc.) with C-u will force a new interactive session to be
424 started and will prompt for the new name. This will reduce the need
425 for `sql-rename-buffer' is most common use cases.
426
427 *** Command continuation prompts in SQL interactive mode are suppressed.
428 Multiple line commands in SQL interactive mode, generate command
429 continuation prompts which needlessly confuse the output. These
430 prompts are now filtered out from the output. This change impacts
431 multiple line SQL statements entered with C-j between each line,
432 statements yanked into the buffer and statements sent with
433 `sql-send-*' functions.
434
435 *** Custom variables control prompting for login parameters.
436 Each supported product has a custom variable `sql-*-login-params'
437 which is a list of the parameters to be prompted for before a
438 connection is established.
439
440 The lists consist of the following five tokens: `user', `password',
441 `database', `server', and `port'. The order in which they appear is
442 the order in which they are prompted. The tokens symbols can be
443 replaced by a sublist starting with the token and followed by a plist
444 which control the prompting for values. The tokens `user',
445 `database', and `server' each can take a property of :default which
446 specifies the value to be used if no value is entered. The
447 `database', `server', and `port' tokens handle the :completion
448 property which restricts the entry to either one of the values in the
449 list or to one of the values returned by the function provided as the
450 property value. The `database' and `server' tokens also accept the
451 :file property whose value is a regexp to identify useful file names.
452
453 (user :default DEF)
454 (database :default DEF
455 :file FILEPAT
456 :completion COMPLETE)
457 (server :default DEF
458 :file FILEPAT
459 :completion COMPLETE)
460
461 The FILEPAT when :file is specified is a regexp that will match valid
462 file names (without the directory portion). Generally these strings
463 will be of the form ".+\.SUF" where SUF is the desired file suffix.
464
465 When :completion is specified, the COMPLETE corresponds to the
466 PREDICATE argument to the `completing-read' function (a list of
467 possible values or a function returning such a list).
468
469 *** Added `sql-connection-alist' to record login parameter values.
470 An alist for recording different username, database and server
471 values. If there are multiple databases that you connect to the
472 parameters needed can be stored in this alist.
473
474 For example, the following might be set in the user's init.el:
475
476 (setq sql-connection-alist
477 '((dev (sql-product 'sqlite)
478 (sql-database "/home/mmaug/dev.db"))
479 (prd (sql-product 'oracle)
480 (sql-user "mmaug")
481 (sql-database "iprd2a"))))
482
483 This defines two connections named "dev" and "prd".
484
485 *** Added `sql-connect' to use predefined connections.
486 Sets the login parameters based on the values in the
487 `sql-connection-alist' and start a SQL interactive session. Any
488 values specified in the connection will not be prompted for.
489
490 In the example above, if the user were to invoke M-x sql-connect, they
491 would be prompted for the connection. The user can respond with
492 either "dev" or "prd". The "dev" connection would connect to the
493 SQLite database without prompting; the "prd" connection would prompt
494 for the users password and then connect to the Oracle database.
495
496 **** Added SQL->Start... submenu when connections are defined.
497 When connections have been defined, there is a submenu available that
498 allows the user to select one to start a SQLi session. The "Start
499 SQLi Session" item moves to the "Start..." submenu when cnnections
500 have been defined.
501
502 **** Added "Save Connection" menu item in SQLi buffers.
503 When a SQLi session is not started by a connection then
504 `sql-save-connection' will gather the login params specified for the
505 session and save them as a new connection.
506
507 *** List database objects and details.
508 Once a SQL interactive session has been started, you can get a list of
509 the objects in the database and see details of those objects. The
510 objects shown and the details available are product specific.
511
512 **** List all objects.
513 Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
514 objects" will list all the objects in the database. At a minimum it
515 lists the tables and views in the database. Preceeding the command by
516 universal argument may provide additional details or extend the
517 listing to include other schemas objects. The list will appear in a
518 separate window in view-mode.
519
520 **** List Table details.
521 Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
522 details" will ask for the name of a database table or view and display
523 the list of columns in the relation. Preceeding the comand with the
524 universal argument may provide additional details about each column.
525 The list will appear in a separate window in view-mode.
526
527 *** Added option `sql-send-terminator'.
528 When set makes sure that each command sent with `sql-send-*' commands
529 are properly terminated and submitted to the SQL processor.
530
531 *** Added option `sql-oracle-scan-on'.
532 When set commands sent to Oracle's SQL*Plus are scanned for strings
533 starting with an ampersand and the user is asked for replacement text.
534 In general, the SQL*Plus option SCAN should always be set OFF under
535 SQL interactive mode and this option used in its place.
536
537 *** SQL interactive mode will replace tabs with spaces.
538 This prevents the comand interpretter for MySQL and Postgres from
539 listing object name completions when being sent text via
540 `sql-send-*' functions.
541
542 *** An API for manipulating SQL product definitions has been added.
543
544 ** sregex.el is now obsolete, since rx.el is a strict superset.
545
546 ** s-region.el is now declared obsolete, superceded by shift-select-mode
547 enabled by default in 23.1.
548
549 ** gdb-mi
550
551 *** GDB User Interface migrated to GDB Machine Interface and now
552 supports multithread non-stop debugging and debugging of several
553 threads simultaneously.
554
555 ** D-Bus
556
557 *** It is possible now, to access alternative buses than the default
558 system or session bus.
559
560 *** dbus-register-{method,property} do not necessarily register names anymore.
561
562 ** Tramp
563
564 *** There exists a new inline access method "ksu" (kerberized su).
565
566 *** The following access methods are discontinued: "ssh1_old",
567 "ssh2_old", "scp1_old", "scp2_old" and "fish".
568
569 ** VC and related modes
570
571 *** Support for pulling on distributed version control systems.
572 The vc-update command now runs a "pull" operation, if it is supported.
573 This updates the current branch from upstream. A prefix argument
574 means to prompt the user for command specifics, e.g. a pull location.
575
576 **** vc-pull is an alias for vc-update.
577
578 **** Currently supported by Bzr.
579
580 *** Support for merging on distributed version control systems.
581 The vc-merge command now runs a "merge" operation, if it is supported.
582 This merges another branch into the current one. A prefix argument
583 means to prompt the user for command specifics, e.g. a merge location.
584
585 **** Currently supported by Bzr.
586
587 \f
588 * New Modes and Packages in Emacs 24.1
589
590 ** New global minor modes electric-pair-mode, electric-indent-mode,
591 and electric-layout-mode.
592
593 ** pcase.el provides the ML-style pattern matching macro `pcase'.
594
595 ** secrets.el is an implementation of the Secret Service API, an
596 interface to password managers like GNOME Keyring or KDE Wallet. The
597 Secret Service API requires D-Bus for communication. The command
598 `secrets-show-secrets' offers a buffer with a visualization of the
599 secrets.
600
601 ** notifications.el provides an implementation of the Desktop
602 Notifications API. It requires D-Bus for communication.
603
604 \f
605 * Incompatible Lisp Changes in Emacs 24.1
606
607 ** For mouse click input events in the text area, the Y pixel
608 coordinate in the POSITION list now counts from the top of the text
609 area, excluding any header line. Previously, it counted from the top
610 of the header line.
611
612 ** Remove obsolete name `e' (use `float-e' instead).
613
614 ** A backquote not followed by a space is now always treated as new-style.
615
616 ** Test for special mode-class was moved from view-file to view-buffer.
617 FIXME: This only says what was changed, but not what are the
618 programmer-visible consequences.
619
620 ** Passing a nil argument to a minor mode function now turns the mode
621 ON unconditionally.
622
623 ** During startup, Emacs no longer adds entries for `menu-bar-lines'
624 and `tool-bar-lines' to `default-frame-alist' and
625 `initial-frame-alist'. With these alist entries omitted, `make-frame'
626 checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
627 determine whether to create a menu-bar or tool-bar, respectively.
628 If the alist entries are added, they override the value of
629 `menu-bar-mode'/`tool-bar-mode'.
630
631 ** Regions created by mouse dragging are now normal active regions,
632 similar to the ones created by shift-selection. In previous Emacs
633 versions, these regions were delineated by `mouse-drag-overlay', which
634 has now been removed.
635
636 ** cl.el no longer provides `cl-19'.
637
638 ** The following functions and aliases, obsolete since at least Emacs 21.1,
639 have been removed:
640 comint-kill-output, decompose-composite-char, outline-visible,
641 internal-find-face, internal-get-face, frame-update-faces,
642 frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
643 x-make-font-bold, x-make-font-demibold, x-make-font-unbold
644 x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
645 x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
646 iswitchb-default-keybindings, char-bytes, isearch-return-char,
647 make-local-hook
648
649 ** The following variables and aliases, obsolete since at least Emacs 21.1,
650 have been removed:
651 checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
652 font-lock-defaults-alist
653
654 ** The following files, obsolete since at least Emacs 21.1, have been removed:
655 sc.el, x-menu.el, rnews.el, rnewspost.el
656
657 ** FIXME finder-inf.el changes.
658
659 \f
660 * Lisp changes in Emacs 24.1
661
662 ** `image-library-alist' is renamed to `dynamic-library-alist'.
663 The variable is now used to load all kind of supported dynamic libraries,
664 not just image libraries. The previous name is still available as an
665 obsolete alias.
666
667 ** New variable syntax-propertize-function to set syntax-table properties.
668 Replaces font-lock-syntactic-keywords which are now obsolete.
669 This allows syntax-table properties to be set independently from font-lock:
670 just call syntax-propertize to make sure the text is propertized.
671 Together with this new variable come a new hook
672 syntax-propertize-extend-region-functions, as well as two helper functions:
673 syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
674 as-is; and syntax-propertize-rules which provides a new way to specify
675 syntactic rules.
676
677 ** New hook post-self-insert-hook run at the end of self-insert-command.
678
679 +++
680 ** Syntax tables support a new "comment style c" additionally to style b.
681 ** frame-local variables cannot be let-bound any more.
682 ** prog-mode is a new major-mode meant to be the parent of programming mode.
683 ** define-minor-mode accepts a new keyword :variable.
684
685 ** `delete-file' and `delete-directory' now accept optional arg TRASH.
686 Trashing is performed if TRASH and `delete-by-moving-to-trash' are
687 both non-nil. Interactively, TRASH defaults to t, unless a prefix
688 argument is supplied (see Trash changes, above).
689
690 ** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
691
692 ** New completion style `substring'.
693
694 ** `facemenu-read-color' is now an alias for `read-color'.
695 The command `read-color' now requires a match for a color name or RGB
696 triplet, instead of signalling an error if the user provides a invalid
697 input.
698
699 ** Tool-bars can display separators.
700 Tool-bar separators are handled like menu separators in menu-bar maps,
701 i.e. via menu entries of the form `(menu-item "--")'.
702
703 ** Image API
704
705 *** When the image type is one of listed in `image-animated-types'
706 and the number of sub-images in the image is more than one, then the
707 new function `create-animated-image' creates an animated image where
708 sub-images are displayed successively with the duration defined by
709 `image-animate-max-time' and the delay between sub-images defined
710 by the Graphic Control Extension of the image.
711
712 *** `image-extension-data' is renamed to `image-metadata'.
713
714 ** XML and HTML parsing
715
716 *** If Emacs is compiled with libxml2 support (which is the default),
717 two new Emacs Lisp-level functions are defined:
718 `libxml-parse-html-region' (which will parse "real world" HTML)
719 and `libxml-parse-xml-region' (which parses XML). Both return an
720 Emacs Lisp parse tree.
721
722 FIXME: These should be front-ended by xml.el.
723
724 ** FIXME GnuTLS
725
726 ** Isearch
727
728 *** New hook `isearch-update-post-hook' that runs in `isearch-update'.
729
730 ** Progress reporters can now "spin".
731 The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
732 now be nil, or omitted. This makes a "non-numeric" reporter. Each
733 time you call `progress-reporter-update' on that progress reporter,
734 with a nil or omitted VALUE argument, the reporter message is
735 displayed with a "spinning bar".
736
737 \f
738 * Changes in Emacs 24.1 on non-free operating systems
739
740 ** New configure.bat option --enable-checking builds emacs with extra
741 runtime checks.
742
743 ** New configure.bat option --distfiles to specify files to be
744 included in binary distribution
745
746 ** New make target `dist' to create binary disttribution for Windows
747 platform
748
749 \f
750 ----------------------------------------------------------------------
751 This file is part of GNU Emacs.
752
753 GNU Emacs is free software: you can redistribute it and/or modify
754 it under the terms of the GNU General Public License as published by
755 the Free Software Foundation, either version 3 of the License, or
756 (at your option) any later version.
757
758 GNU Emacs is distributed in the hope that it will be useful,
759 but WITHOUT ANY WARRANTY; without even the implied warranty of
760 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
761 GNU General Public License for more details.
762
763 You should have received a copy of the GNU General Public License
764 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
765
766 \f
767 Local variables:
768 mode: outline
769 paragraph-separate: "[ \f]*$"
770 end: