* NEWS: Add new function dbus-register-service.
[bpt/emacs.git] / etc / NEWS
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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
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62** New command line option `--no-site-lisp' removes site-lisp directories
63from load-path. -Q now implies this.
64
0bfd685e 65\f
eb199145 66* Changes in Emacs 24.1
7841339b 67
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68** emacsclient changes
69
70*** New emacsclient argument --parent-id ID can be used to open a
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71client frame in parent X window ID, via XEmbed. This works like the
72--parent-id argument to Emacs.
73
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74*** If emacsclient shuts down as a result of Emacs signalling an
75error, its exit status is 1.
76
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77** Completion can cycle, depending on completion-cycle-threshold.
78
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79** auto-mode-case-fold is now enabled by default.
80
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81+++
82** Emacs now supports display and editing of bidirectional text.
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83
84See the node "Bidirectional Editing" in the Emacs Manual for some
85initial documentation.
86
87To turn this on in any given buffer, set the buffer-local variable
88`bidi-display-reordering' to a non-nil value. The default is nil.
89
90The buffer-local variable `bidi-paragraph-direction', if non-nil,
91forces each paragraph in the buffer to have its base direction
92according to the value of this variable. Possible values are
93`right-to-left' and `left-to-right'. If the value is nil (the
94default), Emacs determines the base direction of each paragraph from
95its text, as specified by the Unicode Bidirectional Algorithm.
96
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97The function `current-bidi-paragraph-direction' returns the actual
98value of paragraph base direction at point.
99
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100Reordering of bidirectional text for display in Emacs is a "Full
101bidirectionality" class implementation of the Unicode Bidirectional
102Algorithm.
103
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104Note that some advanced display features, such as overlay strings and
105`display' text properties, do not yet work correctly when
106bidirectional text is reordered for display.
107
303500aa 108** GTK scroll-bars are now placed on the right by default.
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109Use `set-scroll-bar-mode' to change this.
110
20fe03ad 111** GTK tool bars can have just text, just images or images and text.
d8004abe 112Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
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113is taken from the desktop settings.
114
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115** GTK tool bars can be placed on the left/right or top/bottom of the frame.
116The frame-parameter tool-bar-position controls this. It takes the values
1c0d77cc 117top, left, right or bottom. The Options => Show/Hide menu has entries
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118for this.
119
8740c12d 120** ImageMagick support.
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121It is now possible to use the ImageMagick library to load many new
122image formats in Emacs. By default, Emacs links with the ImageMagick
123libraries if they are present at build time. To disable this, use
8ea189f7 124the configure option `--without-imagemagick'.
16a91140 125
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126The new function `imagemagick-types' returns a list of image file
127extensions that your installation of ImageMagick supports. The
128function `imagemagick-register-types' enables ImageMagick support for
b2957ea8 129these image types, minus those listed in `imagemagick-types-inhibit'.
16a91140 130
8740c12d 131See the Emacs Lisp Reference Manual for more information.
16a91140 132
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133** The colors for selected text (the region face) are taken from the GTK
134theme when Emacs is built with GTK.
135
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136** Emacs uses GTK tooltips by default if built with GTK. You can turn that
137off by customizing x-gtk-use-system-tooltips.
138
1ecb2d3f 139** Lucid menus and dialogs can display antialiased fonts if Emacs is built
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140with Xft. To change font, use X resource faceName, for example:
141Emacs.pane.menubar.faceName: Courier-12
142Set faceName to none and use font to use the old X fonts.
99852628 143
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144+++
145** Enhanced support for characters that have no glyphs in available fonts
146If a character has no glyphs in any of the available fonts, Emacs by
147default will display it either as a hexadecimal code in a box or as a
148thin 1-pixel space. In addition to these two methods, Emacs can
149display these characters as empty box, as an acronym, or not display
150them at all. To change how these characters are displayed, customize
151the variable `glyphless-char-display-control'.
152
153On character terminals these methods are used for characters that
154cannot be encoded by the `terminal-coding-system'.
155
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156** On graphical displays, the mode-line no longer ends in dashes.
157
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158** Basic SELinux support has been added.
159This requires Emacs to be linked with libselinux at build time.
160
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161*** Emacs preserves the SELinux file context when backing up, and
162optionally when copying files. To this end, copy-file has an extra
163optional argument, and backup-buffer and friends include the SELinux
164context in their return values.
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165
166*** The new functions file-selinux-context and set-file-selinux-context
167get and set the SELinux context of a file.
168
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169*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
170for remote machines which support SELinux.
171
9c524fcb 172** The function kill-emacs is now run upon receipt of the signals SIGTERM
383ebd15 173and SIGHUP, and upon SIGINT in batch mode.
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174
175** kill-emacs-hook is now also run in batch mode.
176
79ce172a 177** New scrolling commands `scroll-up-command' and `scroll-down-command'
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178(bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
179of buffer at first key-press (instead moves to top/bottom of buffer)
180when a new variable `scroll-error-top-bottom' is non-nil.
79ce172a 181
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182** New scrolling commands `scroll-up-line' and `scroll-down-line'
183scroll a line instead of full screen.
184
a4b000fb 185** New property `scroll-command' should be set on a command's symbol to
b2957ea8 186define it as a scroll command affected by `scroll-preserve-screen-position'.
9013a7f8 187
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188** Trash changes
189
190*** `delete-by-moving-to-trash' now only affects commands that specify
191trashing. This avoids inadvertently trashing temporary files.
192
193*** Calling `delete-file' or `delete-directory' with a prefix argument
194now forces true deletion, regardless of `delete-by-moving-to-trash'.
195
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196** New option `list-colors-sort' defines the color sort order
197for `list-colors-display'.
198
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199** An Emacs Lisp package manager is now included.
200This is a convenient way to download and install additional packages,
42d9cffa 201from a package repository at elpa.gnu.org.
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202
203*** `M-x list-packages' shows a list of packages, which can be
204selected for installation.
205
206*** New command `describe-package', bound to `C-h P'.
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207
208*** By default, all installed packages are loaded and activated
209automatically when Emacs starts up. To disable this, set
210`package-enable-at-startup' to nil. To change which packages are
211loaded, customize `package-load-list'.
212
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213** Custom Themes
214
215*** `M-x customize-themes' lists Custom themes which can be enabled.
216
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217*** New option `custom-theme-load-path' is the load path for themes.
218Emacs no longer looks for custom themes in `load-path'. The default
219is to search in `custom-theme-directory', followed by a built-in theme
220directory named "themes/" in `data-directory'.
221
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222*** New option `custom-safe-themes' records known-safe theme files.
223If a theme is not in this list, Emacs queries before loading it, and
224offers to save the theme to `custom-safe-themes' automatically. By
225default, all themes included in Emacs are treated as safe.
278f6845 226
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227** The user option `remote-file-name-inhibit-cache' controls whether
228the remote file-name cache is used for read access.
229
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230** The standalone programs lib-src/digest-doc and sorted-doc have been
231replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
232
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233** The variable `focus-follows-mouse' now always defaults to nil.
234
0bfd685e 235\f
eb199145 236* Editing Changes in Emacs 24.1
b350bdf2 237
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238+++
239** There is a new command `count-words-region', which does what you expect.
240
67027b49 241** completion-at-point now handles tags and semantic completion.
a982c7ec 242
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243** The default value of `backup-by-copying-when-mismatch' is now t.
244
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245** The command `just-one-space' (C-SPC), if given a negative argument,
246also deletes newlines around point.
247
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248** Deletion changes
249
250*** New option `delete-active-region'.
251If non-nil, C-d, [delete], and DEL delete the region if it is active
252and no prefix argument is given. If set to `kill', these commands
253kill instead.
254
255*** New command `delete-forward-char', bound to C-d and [delete].
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256This is meant for interactive use, and obeys `delete-active-region'.
257The command `delete-char' does not obey `delete-active-region'.
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258
259*** `delete-backward-char' is now a Lisp function.
260Apart from obeying `delete-active-region', its behavior is unchanged.
261However, the byte compiler now warns if it is called from Lisp; you
262should use delete-char with a negative argument instead.
263
264*** The option `mouse-region-delete-keys' has been deleted.
265
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266** Selection changes.
267
7c23dd44 268The default handling of clipboard and primary selections has been
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269changed to conform with other X applications. The exact changes are
270described below; in short, mouse commands to select and paste text now
271use the primary selection, while all other commands for killing and
272yanking text now use the clipboard.
7c23dd44 273
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274*** Merely selecting text (e.g. with drag-mouse-1) does not add it to
275the kill-ring. On systems with a primary selection separate from the
276clipboard (such as X), the selected text is put in the primary
277selection.
278
279*** mouse-2 is now bound to `mouse-yank-primary', which pastes from
280the primary selection regardless of the contents of the kill-ring.
281
282*** Commands that kill text or copy it to the kill-ring (M-w, C-w,
283C-k, etc.) also put the killed text into the clipboard. This change
284also means that the "Copy", "Cut", and "Paste" items in the "Edit"
285menu are now exactly equivalent to, respectively M-w, C-w, and C-y.
286
287*** Yank commands, such as C-y and M-y, retrieve text from the
288clipboard if it is available.
289
290*** The above changes are reflected in the following new defaults:
291
292**** `select-active-regions' now defaults to t.
d1b08c88 293It also accepts a new value, `only', which means to only set the
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294primary selection for temporarily active regions (usually made by
295mouse-dragging or shift-selection).
296
42d9cffa 297**** `mouse-2' is now bound to `mouse-yank-primary'.
7c9b11be 298Previously, it was bound to `mouse-yank-at-click' (which is now
4c0f50c9 299unbound by default).
f9d71b42 300
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301**** `x-select-enable-clipboard' now defaults to t on all platforms.
302Note that this variable was already non-nil by default on MS-Windows,
303which does not support the primary selection between applications.
f9d71b42 304
42d9cffa 305**** `x-select-enable-primary' now defaults to nil.
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306This variable exists only on X; its default value was t in previous
307versions.
2490cbbc 308
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309**** `mouse-drag-copy-region' now defaults to nil.
310
311*** To return to the previous behavior, where mouse commands use the
312clipboard, change `mouse-drag-copy-region' and (on X only)
313`x-select-enable-primary' to t. If you don't want Emacs to put the
314text into the clipboard, only to the primary selection, additionally
315set `x-select-enable-clipboard' to nil.
f9d71b42 316
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317*** Support for X cut buffers has been removed.
318
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319** New command `rectangle-number-lines', bound to `C-x r N', numbers
320the lines in the current rectangle. With an prefix argument, this
321prompts for a number to count from and for a format string.
322
9bae34bf 323\f
eb199145 324* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 325
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326** shell-mode can track your cwd by reading it from your prompt.
327Just set shell-dir-cookie-re to an appropriate regexp.
328
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329** Modula-2 mode provides auto-indentation.
330
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331** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
332
360ac530 333** FIXME: xdg-open for browse-url and reportbug, 2010/08.
0ac3effe 334
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335** Archive Mode has basic support to browse 7z archives.
336
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337** browse-url has gotten a new variable that is used for mailto: URLs,
338 `browse-url-mailto-function', which defaults to `browse-url-mail'.
339
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340** ERC changes
341
342*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
343If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
344successful NickServ identification, or after `erc-autojoin-delay'
345seconds. The default value, 'ident, means to autojoin immediately
346after connecting.
347
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348*** New variable `erc-coding-system-precedence': If we use `undecided'
349as the server coding system, this variable will then be consulted.
350The default is to decode strings that can be decoded as utf-8 as
351utf-8, and do the normal `undecided' decoding for the rest.
352
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353** Eshell changes
354
355*** The default value of eshell-directory-name is a directory named
356"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
357exists, that is used instead.
358
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359** In ido-mode, C-v is no longer bound to ido-toggle-vc.
360The reason is that this interferes with cua-mode.
361
c1e25821 362** partial-completion-mode is now obsolete.
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363You can get a comparable behavior with:
364(setq completion-styles '(partial-completion initials))
365(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 366
18c812bd 367** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
b2957ea8 368
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369** server can listen on a specific port using the server-port option.
370
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371** Calendar, Diary, and Appt
372
373---
374*** The obsolete (since Emacs 22.1) method of enabling the appt package
375by adding appt-make-list to diary-hook has been removed. Use appt-activate.
376
377---
378*** Some appt variables (obsolete since Emacs 22.1) have been removed:
379appt-issue-message (use the function appt-activate)
380appt-visible/appt-msg-window (use the variable appt-display-format)
381
382---
383*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
384view-diary-entries, list-diary-entries, show-all-diary-entries
385
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386** Customize
387
388*** Customize buffers now contain a search field.
389The search is performed using `customize-apropos'.
42d9cffa 390To turn off the search field, set custom-search-field to nil.
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391
392*** Custom options now start out hidden if at their default values.
393Use the arrow to the left of the option name to toggle visibility.
394
395*** custom-buffer-sort-alphabetically now defaults to t.
396
397*** The color widget now has a "Choose" button, which allows you to
398choose a color via list-colors-display.
399
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400** Dired-x
401
402*** dired-jump and dired-jump-other-window called with a prefix argument
403read a file name from the minibuffer instead of using buffer-file-name.
404
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405** Directory local variables can apply to file-less buffers.
406For example, adding "(diff-mode . ((mode . whitespace)))" to your
d8004abe 407.dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
8117868f 408
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409** SQL Mode enhancements.
410
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411*** Several variables have been marked as safe local variables. The
412variables `sql-product', `sql-user', `sql-server', `sql-database' and
413`sql-port' can now be safely used as local variables.
7492acc9 414
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415*** `sql-dialect' is a synonym for `sql-product'.
416
74790210 417*** Added ability to login with a port on MySQL and Postgres.
7492acc9 418The custom variable `sql-port' can be specified for connection to
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419MySQL or Postgres servers. By default, the port is not listed in
420either login parameter, but will be added to the command line if set
421to a non-zero value.
7492acc9 422
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423*** Dynamic selection of product in an SQL interactive session.
424If you use `sql-product-interactive' to start an SQL interactive
425session it uses the current value of `sql-product'. Preceding the
426invocation with C-u will force it to ask for the product before
427creating the session.
428
429*** Renaming a SQL interactive buffer when it is created.
430Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
431`sql-mysql', etc.) with C-u will force a new interactive session to be
432started and will prompt for the new name. This will reduce the need
433for `sql-rename-buffer' is most common use cases.
434
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435*** Command continuation prompts in SQL interactive mode are suppressed.
436Multiple line commands in SQL interactive mode, generate command
437continuation prompts which needlessly confuse the output. These
438prompts are now filtered out from the output. This change impacts
439multiple line SQL statements entered with C-j between each line,
440statements yanked into the buffer and statements sent with
441`sql-send-*' functions.
442
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443*** Custom variables control prompting for login parameters.
444Each supported product has a custom variable `sql-*-login-params'
445which is a list of the parameters to be prompted for before a
446connection is established.
447
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448The lists consist of the following five tokens: `user', `password',
449`database', `server', and `port'. The order in which they appear is
450the order in which they are prompted. The tokens symbols can be
451replaced by a sublist starting with the token and followed by a plist
452which control the prompting for values. The tokens `user',
453`database', and `server' each can take a property of :default which
454specifies the value to be used if no value is entered. The
455`database', `server', and `port' tokens handle the :completion
456property which restricts the entry to either one of the values in the
457list or to one of the values returned by the function provided as the
458property value. The `database' and `server' tokens also accept the
459:file property whose value is a regexp to identify useful file names.
460
461 (user :default DEF)
462 (database :default DEF
463 :file FILEPAT
464 :completion COMPLETE)
465 (server :default DEF
466 :file FILEPAT
467 :completion COMPLETE)
468
469The FILEPAT when :file is specified is a regexp that will match valid
470file names (without the directory portion). Generally these strings
471will be of the form ".+\.SUF" where SUF is the desired file suffix.
472
473When :completion is specified, the COMPLETE corresponds to the
474PREDICATE argument to the `completing-read' function (a list of
475possible values or a function returning such a list).
5474c40f 476
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477*** Added `sql-connection-alist' to record login parameter values.
478An alist for recording different username, database and server
479values. If there are multiple databases that you connect to the
480parameters needed can be stored in this alist.
481
482For example, the following might be set in the user's init.el:
483
484 (setq sql-connection-alist
485 '((dev (sql-product 'sqlite)
486 (sql-database "/home/mmaug/dev.db"))
487 (prd (sql-product 'oracle)
488 (sql-user "mmaug")
489 (sql-database "iprd2a"))))
490
491This defines two connections named "dev" and "prd".
492
493*** Added `sql-connect' to use predefined connections.
494Sets the login parameters based on the values in the
495`sql-connection-alist' and start a SQL interactive session. Any
496values specified in the connection will not be prompted for.
497
498In the example above, if the user were to invoke M-x sql-connect, they
499would be prompted for the connection. The user can respond with
500either "dev" or "prd". The "dev" connection would connect to the
501SQLite database without prompting; the "prd" connection would prompt
502for the users password and then connect to the Oracle database.
503
d26b0ea9 504**** Added SQL->Start... submenu when connections are defined.
b2957ea8 505When connections have been defined, there is a submenu available that
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506allows the user to select one to start a SQLi session. The "Start
507SQLi Session" item moves to the "Start..." submenu when cnnections
508have been defined.
509
510**** Added "Save Connection" menu item in SQLi buffers.
511When a SQLi session is not started by a connection then
512`sql-save-connection' will gather the login params specified for the
513session and save them as a new connection.
514
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515*** List database objects and details.
516Once a SQL interactive session has been started, you can get a list of
517the objects in the database and see details of those objects. The
518objects shown and the details available are product specific.
519
520**** List all objects.
521Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
522objects" will list all the objects in the database. At a minimum it
523lists the tables and views in the database. Preceeding the command by
524universal argument may provide additional details or extend the
525listing to include other schemas objects. The list will appear in a
526separate window in view-mode.
527
528**** List Table details.
529Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
530details" will ask for the name of a database table or view and display
531the list of columns in the relation. Preceeding the comand with the
532universal argument may provide additional details about each column.
533The list will appear in a separate window in view-mode.
534
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535*** Added option `sql-send-terminator'.
536When set makes sure that each command sent with `sql-send-*' commands
537are properly terminated and submitted to the SQL processor.
538
539*** Added option `sql-oracle-scan-on'.
540When set commands sent to Oracle's SQL*Plus are scanned for strings
30c4d8dc
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541starting with an ampersand and the user is asked for replacement text.
542In general, the SQL*Plus option SCAN should always be set OFF under
543SQL interactive mode and this option used in its place.
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544
545*** SQL interactive mode will replace tabs with spaces.
546This prevents the comand interpretter for MySQL and Postgres from
547listing object name completions when being sent text via
548`sql-send-*' functions.
549
550*** An API for manipulating SQL product definitions has been added.
551
723ee192
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552** sregex.el is now obsolete, since rx.el is a strict superset.
553
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554** s-region.el is now declared obsolete, superceded by shift-select-mode
555enabled by default in 23.1.
556
691cf4a0
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557** gdb-mi
558
559*** GDB User Interface migrated to GDB Machine Interface and now
560supports multithread non-stop debugging and debugging of several
561threads simultaneously.
562
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563** D-Bus
564
565*** It is possible now, to access alternative buses than the default
566system or session bus.
567
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568*** dbus-register-{service,method,property}
569The -method and -property functions do not automatically register
570names anymore.
571
572The new function dbus-register-service registers a service known name
573on a D-Bus without simultaneously registering a property or a method.
412b9ee5 574
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575** Tramp
576
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577*** There exists a new inline access method "ksu" (kerberized su).
578
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579*** The following access methods are discontinued: "ssh1_old",
580"ssh2_old", "scp1_old", "scp2_old" and "fish".
581
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582** VC and related modes
583
584*** Support for pulling on distributed version control systems.
585The vc-update command now runs a "pull" operation, if it is supported.
586This updates the current branch from upstream. A prefix argument
587means to prompt the user for command specifics, e.g. a pull location.
588
589**** vc-pull is an alias for vc-update.
590
591**** Currently supported by Bzr.
592
593*** Support for merging on distributed version control systems.
594The vc-merge command now runs a "merge" operation, if it is supported.
595This merges another branch into the current one. A prefix argument
596means to prompt the user for command specifics, e.g. a merge location.
597
598**** Currently supported by Bzr.
599
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600\f
601* New Modes and Packages in Emacs 24.1
d445b3f8 602
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603** New global minor modes electric-pair-mode, electric-indent-mode,
604and electric-layout-mode.
3b843809 605
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606** pcase.el provides the ML-style pattern matching macro `pcase'.
607
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608** secrets.el is an implementation of the Secret Service API, an
609interface to password managers like GNOME Keyring or KDE Wallet. The
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610Secret Service API requires D-Bus for communication. The command
611`secrets-show-secrets' offers a buffer with a visualization of the
612secrets.
7725ebb7 613
f9e78150
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614** notifications.el provides an implementation of the Desktop
615Notifications API. It requires D-Bus for communication.
616
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617\f
618* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 619
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CY
620** For mouse click input events in the text area, the Y pixel
621coordinate in the POSITION list now counts from the top of the text
622area, excluding any header line. Previously, it counted from the top
623of the header line.
624
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625** Remove obsolete name `e' (use `float-e' instead).
626
288cf4e9
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627** A backquote not followed by a space is now always treated as new-style.
628
fd5c9dfa 629** Test for special mode-class was moved from view-file to view-buffer.
288cf4e9
SM
630FIXME: This only says what was changed, but not what are the
631programmer-visible consequences.
fd5c9dfa 632
3b7e1d5f
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633** Passing a nil argument to a minor mode function now turns the mode
634 ON unconditionally.
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635
636** During startup, Emacs no longer adds entries for `menu-bar-lines'
637and `tool-bar-lines' to `default-frame-alist' and
638`initial-frame-alist'. With these alist entries omitted, `make-frame'
639checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
640determine whether to create a menu-bar or tool-bar, respectively.
641If the alist entries are added, they override the value of
642`menu-bar-mode'/`tool-bar-mode'.
643
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644** Regions created by mouse dragging are now normal active regions,
645similar to the ones created by shift-selection. In previous Emacs
646versions, these regions were delineated by `mouse-drag-overlay', which
647has now been removed.
d6d8ee7a 648
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649** cl.el no longer provides `cl-19'.
650
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651** The following functions and aliases, obsolete since at least Emacs 21.1,
652have been removed:
653comint-kill-output, decompose-composite-char, outline-visible,
654internal-find-face, internal-get-face, frame-update-faces,
655frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
656x-make-font-bold, x-make-font-demibold, x-make-font-unbold
657x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
658x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
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659iswitchb-default-keybindings, char-bytes, isearch-return-char,
660make-local-hook
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661
662** The following variables and aliases, obsolete since at least Emacs 21.1,
663have been removed:
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664checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
665font-lock-defaults-alist
3226d6ca 666
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667** The following files, obsolete since at least Emacs 21.1, have been removed:
668sc.el, x-menu.el, rnews.el, rnewspost.el
669
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670** FIXME finder-inf.el changes.
671
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672\f
673* Lisp changes in Emacs 24.1
9097e8af 674
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675** New function `read-char-choice' reads a restricted set of characters,
676discarding any inputs not inside the set.
677
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678** `y-or-n-p' and `yes-or-no-p' now accept format string arguments.
679
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JB
680** `image-library-alist' is renamed to `dynamic-library-alist'.
681The variable is now used to load all kind of supported dynamic libraries,
682not just image libraries. The previous name is still available as an
683obsolete alias.
684
cf38dd42
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685** New variable syntax-propertize-function to set syntax-table properties.
686Replaces font-lock-syntactic-keywords which are now obsolete.
687This allows syntax-table properties to be set independently from font-lock:
688just call syntax-propertize to make sure the text is propertized.
689Together with this new variable come a new hook
690syntax-propertize-extend-region-functions, as well as two helper functions:
691syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
692as-is; and syntax-propertize-rules which provides a new way to specify
693syntactic rules.
694
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695** New hook post-self-insert-hook run at the end of self-insert-command.
696
7cf78aac 697+++
c5683ceb 698** Syntax tables support a new "comment style c" additionally to style b.
4e2db1fe 699** frame-local variables cannot be let-bound any more.
10dcc561 700** prog-mode is a new major-mode meant to be the parent of programming mode.
f44379e7
SM
701** define-minor-mode accepts a new keyword :variable.
702
b2957ea8 703** `delete-file' and `delete-directory' now accept optional arg TRASH.
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CY
704Trashing is performed if TRASH and `delete-by-moving-to-trash' are
705both non-nil. Interactively, TRASH defaults to t, unless a prefix
706argument is supplied (see Trash changes, above).
53967e09 707
8f92b8ad
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708** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
709
00278747
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710** New completion style `substring'.
711
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712** `facemenu-read-color' is now an alias for `read-color'.
713The command `read-color' now requires a match for a color name or RGB
714triplet, instead of signalling an error if the user provides a invalid
715input.
716
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717** Tool-bars can display separators.
718Tool-bar separators are handled like menu separators in menu-bar maps,
94975270 719i.e. via menu entries of the form `(menu-item "--")'.
9317e499 720
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721** Image API
722
723*** When the image type is one of listed in `image-animated-types'
1546c559 724and the number of sub-images in the image is more than one, then the
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JL
725new function `create-animated-image' creates an animated image where
726sub-images are displayed successively with the duration defined by
727`image-animate-max-time' and the delay between sub-images defined
728by the Graphic Control Extension of the image.
729
1546c559
JL
730*** `image-extension-data' is renamed to `image-metadata'.
731
71c17aec
LMI
732** XML and HTML parsing
733
734*** If Emacs is compiled with libxml2 support (which is the default),
4b9832a6 735two new Emacs Lisp-level functions are defined:
84156e94
MA
736`libxml-parse-html-region' (which will parse "real world" HTML)
737and `libxml-parse-xml-region' (which parses XML). Both return an
4b9832a6
CY
738Emacs Lisp parse tree.
739
740FIXME: These should be front-ended by xml.el.
741
cf16af42 742** FIXME GnuTLS
71c17aec 743
a6020335
MH
744** Isearch
745
746*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
747
9326ba26
CY
748** Progress reporters can now "spin".
749The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
750now be nil, or omitted. This makes a "non-numeric" reporter. Each
751time you call `progress-reporter-update' on that progress reporter,
752with a nil or omitted VALUE argument, the reporter message is
753displayed with a "spinning bar".
754
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755\f
756* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 757
04779484
JB
758** New configure.bat option --enable-checking builds emacs with extra
759runtime checks.
760
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CS
761** New configure.bat option --distfiles to specify files to be
762 included in binary distribution
763
764** New make target `dist' to create binary disttribution for Windows
765 platform
766
05197f40 767\f
a933dad1 768----------------------------------------------------------------------
5b87ad55 769This file is part of GNU Emacs.
a933dad1 770
ab73e885 771GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 772it under the terms of the GNU General Public License as published by
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773the Free Software Foundation, either version 3 of the License, or
774(at your option) any later version.
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775
776GNU Emacs is distributed in the hope that it will be useful,
777but WITHOUT ANY WARRANTY; without even the implied warranty of
778MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
779GNU General Public License for more details.
a933dad1 780
5b87ad55 781You should have received a copy of the GNU General Public License
ab73e885 782along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 783
05197f40 784\f
a933dad1
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785Local variables:
786mode: outline
787paragraph-separate: "[ \f]*$"
788end: