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29b7722a 1GNU Emacs NEWS -- history of user-visible changes.
5b87ad55 2
d5612228 3Copyright (C) 2010, 2011 Free Software Foundation, Inc.
5b87ad55 4See the end of the file for license conditions.
a933dad1 5
893db5bc 6Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
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7If possible, use M-x report-emacs-bug.
8
eb199145 9This file is about changes in Emacs version 24.
9a21d88b 10
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11See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
12and NEWS.1-17 for changes in older Emacs versions.
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13
14You can narrow news to a specific version by calling `view-emacs-news'
15with a prefix argument or by typing C-u C-h C-n.
3f7194ed 16
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17
18Temporary note:
19 +++ indicates that the appropriate manual has already been updated.
20 --- means no change in the manuals is called for.
21When you add a new item, please add it without either +++ or ---
22so we will look at it and add it to the manual.
23
24\f
eb199145 25* Installation Changes in Emacs 24.1
09e18d03 26
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27** Configure links against libselinux if it is found.
28You can disable this by using --without-selinux.
29
30---
31** By default, the installed Info and man pages are compressed.
32You can disable this by configuring --without-compress-info.
33
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34---
35** There are new configure options:
36--with-mmdf, --with-mail-unlink, --with-mailhost.
37These provide no new functionality, they just remove the need to edit
38lib-src/Makefile by hand in order to use the associated features.
39
e547b051 40---
30c4d8dc 41** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
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42to configure. Note that other libraries used by Emacs, RSVG and GConf,
43also depend on Gtk+. You can disable them with --without-rsvg and
44--without-gconf.
45
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46** There is a new configure option --enable-use-lisp-union-type.
47This is only useful for Emacs developers to debug certain types of bugs.
b2957ea8 48This is not a new feature; only the configure flag is new.
d9170db5 49
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50---
51** New translation of the Emacs Tutorial in Hebrew is available
52Type `C-u C-h t' to choose it in case your language setup doesn't
53automatically select it.
54
0bfd685e 55\f
eb199145 56* Startup Changes in Emacs 24.1
4a263588 57
198a7a97 58** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
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59command line arguments, and the EMACS_UNIBYTE environment variable, no
60longer have any effect. (They were declared obsolete in Emacs 23.)
198a7a97 61
0bfd685e 62\f
eb199145 63* Changes in Emacs 24.1
7841339b 64
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65** emacsclient changes
66
67*** New emacsclient argument --parent-id ID can be used to open a
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68client frame in parent X window ID, via XEmbed. This works like the
69--parent-id argument to Emacs.
70
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71*** If emacsclient shuts down as a result of Emacs signalling an
72error, its exit status is 1.
73
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74** Completion can cycle, depending on completion-cycle-threshold.
75
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76** auto-mode-case-fold is now enabled by default.
77
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78+++
79** Emacs now supports display and editing of bidirectional text.
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80
81See the node "Bidirectional Editing" in the Emacs Manual for some
82initial documentation.
83
84To 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
87The buffer-local variable `bidi-paragraph-direction', if non-nil,
88forces each paragraph in the buffer to have its base direction
89according to the value of this variable. Possible values are
90`right-to-left' and `left-to-right'. If the value is nil (the
91default), Emacs determines the base direction of each paragraph from
92its text, as specified by the Unicode Bidirectional Algorithm.
93
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94The function `current-bidi-paragraph-direction' returns the actual
95value of paragraph base direction at point.
96
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97Reordering of bidirectional text for display in Emacs is a "Full
98bidirectionality" class implementation of the Unicode Bidirectional
99Algorithm.
100
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101Note that some advanced display features, such as overlay strings and
102`display' text properties, do not yet work correctly when
103bidirectional text is reordered for display.
104
303500aa 105** GTK scroll-bars are now placed on the right by default.
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106Use `set-scroll-bar-mode' to change this.
107
20fe03ad 108** GTK tool bars can have just text, just images or images and text.
d8004abe 109Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
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110is taken from the desktop settings.
111
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112** GTK tool bars can be placed on the left/right or top/bottom of the frame.
113The frame-parameter tool-bar-position controls this. It takes the values
1c0d77cc 114top, left, right or bottom. The Options => Show/Hide menu has entries
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115for this.
116
8740c12d 117** ImageMagick support.
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118It is now possible to use the ImageMagick library to load many new
119image formats in Emacs. By default, Emacs links with the ImageMagick
120libraries if they are present at build time. To disable this, use
8ea189f7 121the configure option `--without-imagemagick'.
16a91140 122
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123The new function `imagemagick-types' returns a list of image file
124extensions that your installation of ImageMagick supports. The
125function `imagemagick-register-types' enables ImageMagick support for
b2957ea8 126these image types, minus those listed in `imagemagick-types-inhibit'.
16a91140 127
8740c12d 128See the Emacs Lisp Reference Manual for more information.
16a91140 129
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130** The colors for selected text (the region face) are taken from the GTK
131theme when Emacs is built with GTK.
132
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133** Emacs uses GTK tooltips by default if built with GTK. You can turn that
134off by customizing x-gtk-use-system-tooltips.
135
1ecb2d3f 136** Lucid menus and dialogs can display antialiased fonts if Emacs is built
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137with Xft. To change font, use X resource faceName, for example:
138Emacs.pane.menubar.faceName: Courier-12
139Set faceName to none and use font to use the old X fonts.
99852628 140
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141+++
142** Enhanced support for characters that have no glyphs in available fonts
143If a character has no glyphs in any of the available fonts, Emacs by
144default will display it either as a hexadecimal code in a box or as a
145thin 1-pixel space. In addition to these two methods, Emacs can
146display these characters as empty box, as an acronym, or not display
147them at all. To change how these characters are displayed, customize
148the variable `glyphless-char-display-control'.
149
150On character terminals these methods are used for characters that
151cannot be encoded by the `terminal-coding-system'.
152
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153** On graphical displays, the mode-line no longer ends in dashes.
154
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155** Basic SELinux support has been added.
156This requires Emacs to be linked with libselinux at build time.
157
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158*** Emacs preserves the SELinux file context when backing up, and
159optionally when copying files. To this end, copy-file has an extra
160optional argument, and backup-buffer and friends include the SELinux
161context in their return values.
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162
163*** The new functions file-selinux-context and set-file-selinux-context
164get and set the SELinux context of a file.
165
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166*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
167for remote machines which support SELinux.
168
9c524fcb 169** The function kill-emacs is now run upon receipt of the signals SIGTERM
383ebd15 170and SIGHUP, and upon SIGINT in batch mode.
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171
172** kill-emacs-hook is now also run in batch mode.
173
79ce172a 174** New scrolling commands `scroll-up-command' and `scroll-down-command'
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175(bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
176of buffer at first key-press (instead moves to top/bottom of buffer)
177when a new variable `scroll-error-top-bottom' is non-nil.
79ce172a 178
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179** New scrolling commands `scroll-up-line' and `scroll-down-line'
180scroll a line instead of full screen.
181
a4b000fb 182** New property `scroll-command' should be set on a command's symbol to
b2957ea8 183define it as a scroll command affected by `scroll-preserve-screen-position'.
9013a7f8 184
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185** Trash changes
186
187*** `delete-by-moving-to-trash' now only affects commands that specify
188trashing. This avoids inadvertently trashing temporary files.
189
190*** Calling `delete-file' or `delete-directory' with a prefix argument
191now forces true deletion, regardless of `delete-by-moving-to-trash'.
192
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193** New option `list-colors-sort' defines the color sort order
194for `list-colors-display'.
195
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196** An Emacs Lisp package manager is now included.
197This is a convenient way to download and install additional packages,
42d9cffa 198from a package repository at elpa.gnu.org.
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199
200*** `M-x list-packages' shows a list of packages, which can be
201selected for installation.
202
203*** New command `describe-package', bound to `C-h P'.
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204
205*** By default, all installed packages are loaded and activated
206automatically when Emacs starts up. To disable this, set
207`package-enable-at-startup' to nil. To change which packages are
208loaded, customize `package-load-list'.
209
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210** Custom Themes
211
212*** `M-x customize-themes' lists Custom themes which can be enabled.
213
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214*** New option `custom-theme-load-path' is the load path for themes.
215Emacs no longer looks for custom themes in `load-path'. The default
216is to search in `custom-theme-directory', followed by a built-in theme
217directory named "themes/" in `data-directory'.
218
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219** The user option `remote-file-name-inhibit-cache' controls whether
220the remote file-name cache is used for read access.
221
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222** The standalone programs lib-src/digest-doc and sorted-doc have been
223replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
224
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225** The variable `focus-follows-mouse' now always defaults to nil.
226
0bfd685e 227\f
eb199145 228* Editing Changes in Emacs 24.1
b350bdf2 229
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230+++
231** There is a new command `count-words-region', which does what you expect.
232
67027b49 233** completion-at-point now handles tags and semantic completion.
a982c7ec 234
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235** The default value of `backup-by-copying-when-mismatch' is now t.
236
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237** The command `just-one-space' (C-SPC), if given a negative argument,
238also deletes newlines around point.
239
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240** Deletion changes
241
242*** New option `delete-active-region'.
243If non-nil, C-d, [delete], and DEL delete the region if it is active
244and no prefix argument is given. If set to `kill', these commands
245kill instead.
246
247*** New command `delete-forward-char', bound to C-d and [delete].
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248This is meant for interactive use, and obeys `delete-active-region'.
249The command `delete-char' does not obey `delete-active-region'.
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250
251*** `delete-backward-char' is now a Lisp function.
252Apart from obeying `delete-active-region', its behavior is unchanged.
253However, the byte compiler now warns if it is called from Lisp; you
254should use delete-char with a negative argument instead.
255
256*** The option `mouse-region-delete-keys' has been deleted.
257
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258** Selection changes.
259
7c23dd44 260The default handling of clipboard and primary selections has been
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261changed to conform with other X applications. The exact changes are
262described below; in short, mouse commands to select and paste text now
263use the primary selection, while all other commands for killing and
264yanking text now use the clipboard.
7c23dd44 265
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266*** Merely selecting text (e.g. with drag-mouse-1) does not add it to
267the kill-ring. On systems with a primary selection separate from the
268clipboard (such as X), the selected text is put in the primary
269selection.
270
271*** mouse-2 is now bound to `mouse-yank-primary', which pastes from
272the 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,
275C-k, etc.) also put the killed text into the clipboard. This change
276also means that the "Copy", "Cut", and "Paste" items in the "Edit"
277menu 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
280clipboard 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.
d1b08c88 285It also accepts a new value, `only', which means to only set the
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286primary selection for temporarily active regions (usually made by
287mouse-dragging or shift-selection).
288
42d9cffa 289**** `mouse-2' is now bound to `mouse-yank-primary'.
7c9b11be 290Previously, it was bound to `mouse-yank-at-click' (which is now
4c0f50c9 291unbound by default).
f9d71b42 292
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293**** `x-select-enable-clipboard' now defaults to t on all platforms.
294Note that this variable was already non-nil by default on MS-Windows,
295which does not support the primary selection between applications.
f9d71b42 296
42d9cffa 297**** `x-select-enable-primary' now defaults to nil.
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298This variable exists only on X; its default value was t in previous
299versions.
2490cbbc 300
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301**** `mouse-drag-copy-region' now defaults to nil.
302
303*** To return to the previous behavior, where mouse commands use the
304clipboard, 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
306text into the clipboard, only to the primary selection, additionally
307set `x-select-enable-clipboard' to nil.
f9d71b42 308
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309*** Support for X cut buffers has been removed.
310
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311** New command `rectangle-number-lines', bound to `C-x r N', numbers
312the lines in the current rectangle. With an prefix argument, this
313prompts for a number to count from and for a format string.
314
9bae34bf 315\f
eb199145 316* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 317
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318** shell-mode can track your cwd by reading it from your prompt.
319Just set shell-dir-cookie-re to an appropriate regexp.
320
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321** Modula-2 mode provides auto-indentation.
322
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323** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
324
360ac530 325** FIXME: xdg-open for browse-url and reportbug, 2010/08.
0ac3effe 326
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327** Archive Mode has basic support to browse 7z archives.
328
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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
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332** ERC changes
333
334*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
335If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
336successful NickServ identification, or after `erc-autojoin-delay'
337seconds. The default value, 'ident, means to autojoin immediately
338after connecting.
339
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340*** New variable `erc-coding-system-precedence': If we use `undecided'
341as the server coding system, this variable will then be consulted.
342The default is to decode strings that can be decoded as utf-8 as
343utf-8, and do the normal `undecided' decoding for the rest.
344
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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
349exists, that is used instead.
350
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351** In ido-mode, C-v is no longer bound to ido-toggle-vc.
352The reason is that this interferes with cua-mode.
353
c1e25821 354** partial-completion-mode is now obsolete.
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355You can get a comparable behavior with:
356(setq completion-styles '(partial-completion initials))
357(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 358
18c812bd 359** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
b2957ea8 360
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361** server can listen on a specific port using the server-port option.
362
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363** Calendar, Diary, and Appt
364
365---
366*** The obsolete (since Emacs 22.1) method of enabling the appt package
367by 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:
371appt-issue-message (use the function appt-activate)
372appt-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:
376view-diary-entries, list-diary-entries, show-all-diary-entries
377
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378** Customize
379
380*** Customize buffers now contain a search field.
381The search is performed using `customize-apropos'.
42d9cffa 382To turn off the search field, set custom-search-field to nil.
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383
384*** Custom options now start out hidden if at their default values.
385Use 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
390choose a color via list-colors-display.
391
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392** Dired-x
393
394*** dired-jump and dired-jump-other-window called with a prefix argument
395read a file name from the minibuffer instead of using buffer-file-name.
396
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397** Directory local variables can apply to file-less buffers.
398For example, adding "(diff-mode . ((mode . whitespace)))" to your
d8004abe 399.dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
8117868f 400
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401** SQL Mode enhancements.
402
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403*** Several variables have been marked as safe local variables. The
404variables `sql-product', `sql-user', `sql-server', `sql-database' and
405`sql-port' can now be safely used as local variables.
7492acc9 406
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407*** `sql-dialect' is a synonym for `sql-product'.
408
74790210 409*** Added ability to login with a port on MySQL and Postgres.
7492acc9 410The custom variable `sql-port' can be specified for connection to
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411MySQL or Postgres servers. By default, the port is not listed in
412either login parameter, but will be added to the command line if set
413to a non-zero value.
7492acc9 414
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415*** Dynamic selection of product in an SQL interactive session.
416If you use `sql-product-interactive' to start an SQL interactive
417session it uses the current value of `sql-product'. Preceding the
418invocation with C-u will force it to ask for the product before
419creating the session.
420
421*** Renaming a SQL interactive buffer when it is created.
422Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
423`sql-mysql', etc.) with C-u will force a new interactive session to be
424started and will prompt for the new name. This will reduce the need
425for `sql-rename-buffer' is most common use cases.
426
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427*** Command continuation prompts in SQL interactive mode are suppressed.
428Multiple line commands in SQL interactive mode, generate command
429continuation prompts which needlessly confuse the output. These
430prompts are now filtered out from the output. This change impacts
431multiple line SQL statements entered with C-j between each line,
432statements yanked into the buffer and statements sent with
433`sql-send-*' functions.
434
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435*** Custom variables control prompting for login parameters.
436Each supported product has a custom variable `sql-*-login-params'
437which is a list of the parameters to be prompted for before a
438connection is established.
439
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440The lists consist of the following five tokens: `user', `password',
441`database', `server', and `port'. The order in which they appear is
442the order in which they are prompted. The tokens symbols can be
443replaced by a sublist starting with the token and followed by a plist
444which control the prompting for values. The tokens `user',
445`database', and `server' each can take a property of :default which
446specifies the value to be used if no value is entered. The
447`database', `server', and `port' tokens handle the :completion
448property which restricts the entry to either one of the values in the
449list or to one of the values returned by the function provided as the
450property 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
461The FILEPAT when :file is specified is a regexp that will match valid
462file names (without the directory portion). Generally these strings
463will be of the form ".+\.SUF" where SUF is the desired file suffix.
464
465When :completion is specified, the COMPLETE corresponds to the
466PREDICATE argument to the `completing-read' function (a list of
467possible values or a function returning such a list).
5474c40f 468
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469*** Added `sql-connection-alist' to record login parameter values.
470An alist for recording different username, database and server
471values. If there are multiple databases that you connect to the
472parameters needed can be stored in this alist.
473
474For 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
483This defines two connections named "dev" and "prd".
484
485*** Added `sql-connect' to use predefined connections.
486Sets the login parameters based on the values in the
487`sql-connection-alist' and start a SQL interactive session. Any
488values specified in the connection will not be prompted for.
489
490In the example above, if the user were to invoke M-x sql-connect, they
491would be prompted for the connection. The user can respond with
492either "dev" or "prd". The "dev" connection would connect to the
493SQLite database without prompting; the "prd" connection would prompt
494for the users password and then connect to the Oracle database.
495
d26b0ea9 496**** Added SQL->Start... submenu when connections are defined.
b2957ea8 497When connections have been defined, there is a submenu available that
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498allows the user to select one to start a SQLi session. The "Start
499SQLi Session" item moves to the "Start..." submenu when cnnections
500have been defined.
501
502**** Added "Save Connection" menu item in SQLi buffers.
503When a SQLi session is not started by a connection then
504`sql-save-connection' will gather the login params specified for the
505session and save them as a new connection.
506
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507*** List database objects and details.
508Once a SQL interactive session has been started, you can get a list of
509the objects in the database and see details of those objects. The
510objects shown and the details available are product specific.
511
512**** List all objects.
513Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
514objects" will list all the objects in the database. At a minimum it
515lists the tables and views in the database. Preceeding the command by
516universal argument may provide additional details or extend the
517listing to include other schemas objects. The list will appear in a
518separate window in view-mode.
519
520**** List Table details.
521Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
522details" will ask for the name of a database table or view and display
523the list of columns in the relation. Preceeding the comand with the
524universal argument may provide additional details about each column.
525The list will appear in a separate window in view-mode.
526
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527*** Added option `sql-send-terminator'.
528When set makes sure that each command sent with `sql-send-*' commands
529are properly terminated and submitted to the SQL processor.
530
531*** Added option `sql-oracle-scan-on'.
532When set commands sent to Oracle's SQL*Plus are scanned for strings
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533starting with an ampersand and the user is asked for replacement text.
534In general, the SQL*Plus option SCAN should always be set OFF under
535SQL interactive mode and this option used in its place.
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536
537*** SQL interactive mode will replace tabs with spaces.
538This prevents the comand interpretter for MySQL and Postgres from
539listing 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
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544** sregex.el is now obsolete, since rx.el is a strict superset.
545
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546** s-region.el is now declared obsolete, superceded by shift-select-mode
547enabled by default in 23.1.
548
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549** gdb-mi
550
551*** GDB User Interface migrated to GDB Machine Interface and now
552supports multithread non-stop debugging and debugging of several
553threads simultaneously.
554
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555** D-Bus
556
557*** It is possible now, to access alternative buses than the default
558system or session bus.
559
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560*** dbus-register-{method,property} do not necessarily register names anymore.
561
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562** Tramp
563
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564*** There exists a new inline access method "ksu" (kerberized su).
565
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566*** The following access methods are discontinued: "ssh1_old",
567"ssh2_old", "scp1_old", "scp2_old" and "fish".
568
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569** VC and related modes
570
571*** Support for pulling on distributed version control systems.
572The vc-update command now runs a "pull" operation, if it is supported.
573This updates the current branch from upstream. A prefix argument
574means 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.
581The vc-merge command now runs a "merge" operation, if it is supported.
582This merges another branch into the current one. A prefix argument
583means to prompt the user for command specifics, e.g. a merge location.
584
585**** Currently supported by Bzr.
586
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587\f
588* New Modes and Packages in Emacs 24.1
d445b3f8 589
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590** New global minor modes electric-pair-mode, electric-indent-mode,
591and electric-layout-mode.
3b843809 592
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593** pcase.el provides the ML-style pattern matching macro `pcase'.
594
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595** secrets.el is an implementation of the Secret Service API, an
596interface to password managers like GNOME Keyring or KDE Wallet. The
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597Secret Service API requires D-Bus for communication. The command
598`secrets-show-secrets' offers a buffer with a visualization of the
599secrets.
7725ebb7 600
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601** notifications.el provides an implementation of the Desktop
602Notifications API. It requires D-Bus for communication.
603
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604\f
605* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 606
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607** For mouse click input events in the text area, the Y pixel
608coordinate in the POSITION list now counts from the top of the text
609area, excluding any header line. Previously, it counted from the top
610of the header line.
611
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612** Remove obsolete name `e' (use `float-e' instead).
613
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614** A backquote not followed by a space is now always treated as new-style.
615
fd5c9dfa 616** Test for special mode-class was moved from view-file to view-buffer.
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617FIXME: This only says what was changed, but not what are the
618programmer-visible consequences.
fd5c9dfa 619
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620** Passing a nil argument to a minor mode function now turns the mode
621 ON unconditionally.
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622
623** During startup, Emacs no longer adds entries for `menu-bar-lines'
624and `tool-bar-lines' to `default-frame-alist' and
625`initial-frame-alist'. With these alist entries omitted, `make-frame'
626checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
627determine whether to create a menu-bar or tool-bar, respectively.
628If the alist entries are added, they override the value of
629`menu-bar-mode'/`tool-bar-mode'.
630
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631** Regions created by mouse dragging are now normal active regions,
632similar to the ones created by shift-selection. In previous Emacs
633versions, these regions were delineated by `mouse-drag-overlay', which
634has now been removed.
d6d8ee7a 635
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636** cl.el no longer provides `cl-19'.
637
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638** The following functions and aliases, obsolete since at least Emacs 21.1,
639have been removed:
640comint-kill-output, decompose-composite-char, outline-visible,
641internal-find-face, internal-get-face, frame-update-faces,
642frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
643x-make-font-bold, x-make-font-demibold, x-make-font-unbold
644x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
645x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
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646iswitchb-default-keybindings, char-bytes, isearch-return-char,
647make-local-hook
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648
649** The following variables and aliases, obsolete since at least Emacs 21.1,
650have been removed:
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651checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
652font-lock-defaults-alist
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654** The following files, obsolete since at least Emacs 21.1, have been removed:
655sc.el, x-menu.el, rnews.el, rnewspost.el
656
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657** FIXME finder-inf.el changes.
658
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659\f
660* Lisp changes in Emacs 24.1
9097e8af 661
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662** `image-library-alist' is renamed to `dynamic-library-alist'.
663The variable is now used to load all kind of supported dynamic libraries,
664not just image libraries. The previous name is still available as an
665obsolete alias.
666
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667** New variable syntax-propertize-function to set syntax-table properties.
668Replaces font-lock-syntactic-keywords which are now obsolete.
669This allows syntax-table properties to be set independently from font-lock:
670just call syntax-propertize to make sure the text is propertized.
671Together with this new variable come a new hook
672syntax-propertize-extend-region-functions, as well as two helper functions:
673syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
674as-is; and syntax-propertize-rules which provides a new way to specify
675syntactic rules.
676
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677** New hook post-self-insert-hook run at the end of self-insert-command.
678
7cf78aac 679+++
c5683ceb 680** Syntax tables support a new "comment style c" additionally to style b.
4e2db1fe 681** frame-local variables cannot be let-bound any more.
10dcc561 682** prog-mode is a new major-mode meant to be the parent of programming mode.
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683** define-minor-mode accepts a new keyword :variable.
684
b2957ea8 685** `delete-file' and `delete-directory' now accept optional arg TRASH.
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686Trashing is performed if TRASH and `delete-by-moving-to-trash' are
687both non-nil. Interactively, TRASH defaults to t, unless a prefix
688argument is supplied (see Trash changes, above).
53967e09 689
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690** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
691
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692** New completion style `substring'.
693
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694** `facemenu-read-color' is now an alias for `read-color'.
695The command `read-color' now requires a match for a color name or RGB
696triplet, instead of signalling an error if the user provides a invalid
697input.
698
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699** Tool-bars can display separators.
700Tool-bar separators are handled like menu separators in menu-bar maps,
94975270 701i.e. via menu entries of the form `(menu-item "--")'.
9317e499 702
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703** Image API
704
705*** When the image type is one of listed in `image-animated-types'
1546c559 706and the number of sub-images in the image is more than one, then the
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707new function `create-animated-image' creates an animated image where
708sub-images are displayed successively with the duration defined by
709`image-animate-max-time' and the delay between sub-images defined
710by the Graphic Control Extension of the image.
711
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712*** `image-extension-data' is renamed to `image-metadata'.
713
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714** XML and HTML parsing
715
716*** If Emacs is compiled with libxml2 support (which is the default),
4b9832a6 717two new Emacs Lisp-level functions are defined:
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718`libxml-parse-html-region' (which will parse "real world" HTML)
719and `libxml-parse-xml-region' (which parses XML). Both return an
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720Emacs Lisp parse tree.
721
722FIXME: These should be front-ended by xml.el.
723
cf16af42 724** FIXME GnuTLS
71c17aec 725
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726** Isearch
727
728*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
729
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730** Progress reporters can now "spin".
731The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
732now be nil, or omitted. This makes a "non-numeric" reporter. Each
733time you call `progress-reporter-update' on that progress reporter,
734with a nil or omitted VALUE argument, the reporter message is
735displayed with a "spinning bar".
736
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737\f
738* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 739
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740** New configure.bat option --enable-checking builds emacs with extra
741runtime checks.
742
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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
05197f40 749\f
a933dad1 750----------------------------------------------------------------------
5b87ad55 751This file is part of GNU Emacs.
a933dad1 752
ab73e885 753GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 754it under the terms of the GNU General Public License as published by
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755the Free Software Foundation, either version 3 of the License, or
756(at your option) any later version.
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757
758GNU Emacs is distributed in the hope that it will be useful,
759but WITHOUT ANY WARRANTY; without even the implied warranty of
760MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
761GNU General Public License for more details.
a933dad1 762
5b87ad55 763You should have received a copy of the GNU General Public License
ab73e885 764along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 765
05197f40 766\f
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767Local variables:
768mode: outline
769paragraph-separate: "[ \f]*$"
770end: