Fix help-mode highlighting of advice warning (Bug#6304).
[bpt/emacs.git] / etc / NEWS
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29b7722a 1GNU Emacs NEWS -- history of user-visible changes.
5b87ad55 2
73b0cd50 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** An Emacs Lisp testing tool is now included.
214Emacs Lisp developers can use this tool to write automated tests for
215their code. See the ERT info manual for details.
216
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217** Custom Themes
218
219*** `M-x customize-themes' lists Custom themes which can be enabled.
220
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221*** New option `custom-theme-load-path' is the load path for themes.
222Emacs no longer looks for custom themes in `load-path'. The default
223is to search in `custom-theme-directory', followed by a built-in theme
224directory named "themes/" in `data-directory'.
225
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226*** New option `custom-safe-themes' records known-safe theme files.
227If a theme is not in this list, Emacs queries before loading it, and
228offers to save the theme to `custom-safe-themes' automatically. By
229default, all themes included in Emacs are treated as safe.
278f6845 230
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231** The user option `remote-file-name-inhibit-cache' controls whether
232the remote file-name cache is used for read access.
233
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234** The standalone programs lib-src/digest-doc and sorted-doc have been
235replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
236
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237** The variable `focus-follows-mouse' now always defaults to nil.
238
0bfd685e 239\f
eb199145 240* Editing Changes in Emacs 24.1
b350bdf2 241
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242+++
243** There is a new command `count-words-region', which does what you expect.
244
67027b49 245** completion-at-point now handles tags and semantic completion.
a982c7ec 246
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247** The default value of `backup-by-copying-when-mismatch' is now t.
248
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249** The command `just-one-space' (C-SPC), if given a negative argument,
250also deletes newlines around point.
251
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252** Deletion changes
253
254*** New option `delete-active-region'.
255If non-nil, C-d, [delete], and DEL delete the region if it is active
256and no prefix argument is given. If set to `kill', these commands
257kill instead.
258
259*** New command `delete-forward-char', bound to C-d and [delete].
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260This is meant for interactive use, and obeys `delete-active-region'.
261The command `delete-char' does not obey `delete-active-region'.
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262
263*** `delete-backward-char' is now a Lisp function.
264Apart from obeying `delete-active-region', its behavior is unchanged.
265However, the byte compiler now warns if it is called from Lisp; you
266should use delete-char with a negative argument instead.
267
268*** The option `mouse-region-delete-keys' has been deleted.
269
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270** Selection changes.
271
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272The default handling of clipboard and primary selections was changed
273to conform with modern X applications. In short, most commands for
274killing and yanking text now use the clipboard, while mouse commands
275use the primary selection.
276
277In the following, we provide a list of these changes, followed by a
278list of steps to get the old behavior back if you prefer that.
279
280*** `mouse-drag-copy-region' now defaults to nil.
281*** `select-active-regions' now defaults to t.
282Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
283the kill-ring. The selected text is put in the primary selection, if
284the system possesses a separate primary selection facility (e.g. X).
285
286**** `select-active-regions' also accepts a new value, `only'.
287This means to only set the primary selection for temporarily active
288regions (usually made by mouse-dragging or shift-selection);
289"ordinary" active regions, such as those made with C-SPC followed by
290point motion, do not alter the primary selection.
291
292*** mouse-2 is now bound to `mouse-yank-primary'.
293This pastes from the primary selection, ignoring the kill-ring.
294Previously, mouse-2 was bound to `mouse-yank-at-click'.
295
296*** `x-select-enable-clipboard' now defaults to t on all platforms.
297*** `x-select-enable-primary' now defaults to nil.
298Thus, commands that kill text or copy it to the kill-ring (such as
299M-w, C-w, and C-k) also use the clipboard---not the primary selection.
300
301**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
302exactly equivalent to, respectively M-w, C-w, and C-y.
303
304**** Note that on MS-Windows, `x-select-enable-clipboard' was already
305non-nil by default, as Windows does not support the primary selection
306between applications.
307
308*** To return to the previous behavior, do the following:
309
310**** Change `mouse-drag-copy-region' to t.
311**** Change `x-select-enable-primary' to t (on X only).
312**** Change `x-select-enable-clipboard' to nil.
313**** Bind `mouse-yank-at-click' to mouse-2.
f9d71b42 314
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315*** Support for X cut buffers has been removed.
316
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317** New command `rectangle-number-lines', bound to `C-x r N', numbers
318the lines in the current rectangle. With an prefix argument, this
319prompts for a number to count from and for a format string.
320
9bae34bf 321\f
eb199145 322* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 323
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324** The Landmark game is now invoked with `landmark', not `lm'.
325
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326** Prolog mode has been completely revamped, with lots of additional
327functionality such as more intelligent indentation, electricty, support for
328more variants, including Mercury, and a lot more.
329
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330** shell-mode can track your cwd by reading it from your prompt.
331Just set shell-dir-cookie-re to an appropriate regexp.
332
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333** Modula-2 mode provides auto-indentation.
334
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335** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
336
360ac530 337** FIXME: xdg-open for browse-url and reportbug, 2010/08.
0ac3effe 338
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339** Archive Mode has basic support to browse 7z archives.
340
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341** browse-url has gotten a new variable that is used for mailto: URLs,
342 `browse-url-mailto-function', which defaults to `browse-url-mail'.
343
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344** ERC changes
345
346*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
347If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
348successful NickServ identification, or after `erc-autojoin-delay'
349seconds. The default value, 'ident, means to autojoin immediately
350after connecting.
351
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352*** New variable `erc-coding-system-precedence': If we use `undecided'
353as the server coding system, this variable will then be consulted.
354The default is to decode strings that can be decoded as utf-8 as
355utf-8, and do the normal `undecided' decoding for the rest.
356
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357** Eshell changes
358
359*** The default value of eshell-directory-name is a directory named
360"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
361exists, that is used instead.
362
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363** In ido-mode, C-v is no longer bound to ido-toggle-vc.
364The reason is that this interferes with cua-mode.
365
c1e25821 366** partial-completion-mode is now obsolete.
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367You can get a comparable behavior with:
368(setq completion-styles '(partial-completion initials))
369(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 370
18c812bd 371** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
b2957ea8 372
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373** server can listen on a specific port using the server-port option.
374
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375** Calendar, Diary, and Appt
376
377---
378*** The obsolete (since Emacs 22.1) method of enabling the appt package
379by adding appt-make-list to diary-hook has been removed. Use appt-activate.
380
381---
382*** Some appt variables (obsolete since Emacs 22.1) have been removed:
383appt-issue-message (use the function appt-activate)
384appt-visible/appt-msg-window (use the variable appt-display-format)
385
386---
387*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
388view-diary-entries, list-diary-entries, show-all-diary-entries
389
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390** Customize
391
392*** Customize buffers now contain a search field.
393The search is performed using `customize-apropos'.
42d9cffa 394To turn off the search field, set custom-search-field to nil.
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395
396*** Custom options now start out hidden if at their default values.
397Use the arrow to the left of the option name to toggle visibility.
398
399*** custom-buffer-sort-alphabetically now defaults to t.
400
401*** The color widget now has a "Choose" button, which allows you to
402choose a color via list-colors-display.
403
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404** Dired-x
405
406*** dired-jump and dired-jump-other-window called with a prefix argument
407read a file name from the minibuffer instead of using buffer-file-name.
408
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409** Directory local variables can apply to file-less buffers.
410For example, adding "(diff-mode . ((mode . whitespace)))" to your
d8004abe 411.dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
8117868f 412
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413** SQL Mode enhancements.
414
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415*** Several variables have been marked as safe local variables. The
416variables `sql-product', `sql-user', `sql-server', `sql-database' and
417`sql-port' can now be safely used as local variables.
7492acc9 418
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419*** `sql-dialect' is a synonym for `sql-product'.
420
74790210 421*** Added ability to login with a port on MySQL and Postgres.
7492acc9 422The custom variable `sql-port' can be specified for connection to
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423MySQL or Postgres servers. By default, the port is not listed in
424either login parameter, but will be added to the command line if set
425to a non-zero value.
7492acc9 426
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427*** Dynamic selection of product in an SQL interactive session.
428If you use `sql-product-interactive' to start an SQL interactive
429session it uses the current value of `sql-product'. Preceding the
430invocation with C-u will force it to ask for the product before
431creating the session.
432
433*** Renaming a SQL interactive buffer when it is created.
434Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
435`sql-mysql', etc.) with C-u will force a new interactive session to be
436started and will prompt for the new name. This will reduce the need
437for `sql-rename-buffer' is most common use cases.
438
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439*** Command continuation prompts in SQL interactive mode are suppressed.
440Multiple line commands in SQL interactive mode, generate command
441continuation prompts which needlessly confuse the output. These
442prompts are now filtered out from the output. This change impacts
443multiple line SQL statements entered with C-j between each line,
444statements yanked into the buffer and statements sent with
445`sql-send-*' functions.
446
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447*** Custom variables control prompting for login parameters.
448Each supported product has a custom variable `sql-*-login-params'
449which is a list of the parameters to be prompted for before a
450connection is established.
451
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452The lists consist of the following five tokens: `user', `password',
453`database', `server', and `port'. The order in which they appear is
454the order in which they are prompted. The tokens symbols can be
455replaced by a sublist starting with the token and followed by a plist
456which control the prompting for values. The tokens `user',
457`database', and `server' each can take a property of :default which
458specifies the value to be used if no value is entered. The
459`database', `server', and `port' tokens handle the :completion
460property which restricts the entry to either one of the values in the
461list or to one of the values returned by the function provided as the
462property value. The `database' and `server' tokens also accept the
463:file property whose value is a regexp to identify useful file names.
464
465 (user :default DEF)
466 (database :default DEF
467 :file FILEPAT
468 :completion COMPLETE)
469 (server :default DEF
470 :file FILEPAT
471 :completion COMPLETE)
472
473The FILEPAT when :file is specified is a regexp that will match valid
474file names (without the directory portion). Generally these strings
475will be of the form ".+\.SUF" where SUF is the desired file suffix.
476
477When :completion is specified, the COMPLETE corresponds to the
478PREDICATE argument to the `completing-read' function (a list of
479possible values or a function returning such a list).
5474c40f 480
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481*** Added `sql-connection-alist' to record login parameter values.
482An alist for recording different username, database and server
483values. If there are multiple databases that you connect to the
484parameters needed can be stored in this alist.
485
486For example, the following might be set in the user's init.el:
487
488 (setq sql-connection-alist
489 '((dev (sql-product 'sqlite)
490 (sql-database "/home/mmaug/dev.db"))
491 (prd (sql-product 'oracle)
492 (sql-user "mmaug")
493 (sql-database "iprd2a"))))
494
495This defines two connections named "dev" and "prd".
496
497*** Added `sql-connect' to use predefined connections.
498Sets the login parameters based on the values in the
499`sql-connection-alist' and start a SQL interactive session. Any
500values specified in the connection will not be prompted for.
501
502In the example above, if the user were to invoke M-x sql-connect, they
503would be prompted for the connection. The user can respond with
504either "dev" or "prd". The "dev" connection would connect to the
505SQLite database without prompting; the "prd" connection would prompt
506for the users password and then connect to the Oracle database.
507
d26b0ea9 508**** Added SQL->Start... submenu when connections are defined.
b2957ea8 509When connections have been defined, there is a submenu available that
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510allows the user to select one to start a SQLi session. The "Start
511SQLi Session" item moves to the "Start..." submenu when cnnections
512have been defined.
513
514**** Added "Save Connection" menu item in SQLi buffers.
515When a SQLi session is not started by a connection then
516`sql-save-connection' will gather the login params specified for the
517session and save them as a new connection.
518
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519*** List database objects and details.
520Once a SQL interactive session has been started, you can get a list of
521the objects in the database and see details of those objects. The
522objects shown and the details available are product specific.
523
524**** List all objects.
525Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
526objects" will list all the objects in the database. At a minimum it
527lists the tables and views in the database. Preceeding the command by
528universal argument may provide additional details or extend the
529listing to include other schemas objects. The list will appear in a
530separate window in view-mode.
531
532**** List Table details.
533Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
534details" will ask for the name of a database table or view and display
535the list of columns in the relation. Preceeding the comand with the
536universal argument may provide additional details about each column.
537The list will appear in a separate window in view-mode.
538
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539*** Added option `sql-send-terminator'.
540When set makes sure that each command sent with `sql-send-*' commands
541are properly terminated and submitted to the SQL processor.
542
543*** Added option `sql-oracle-scan-on'.
544When set commands sent to Oracle's SQL*Plus are scanned for strings
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545starting with an ampersand and the user is asked for replacement text.
546In general, the SQL*Plus option SCAN should always be set OFF under
547SQL interactive mode and this option used in its place.
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548
549*** SQL interactive mode will replace tabs with spaces.
550This prevents the comand interpretter for MySQL and Postgres from
551listing object name completions when being sent text via
552`sql-send-*' functions.
553
554*** An API for manipulating SQL product definitions has been added.
555
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556** sregex.el is now obsolete, since rx.el is a strict superset.
557
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558** s-region.el is now declared obsolete, superceded by shift-select-mode
559enabled by default in 23.1.
560
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561** gdb-mi
562
563*** GDB User Interface migrated to GDB Machine Interface and now
564supports multithread non-stop debugging and debugging of several
565threads simultaneously.
566
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567** D-Bus
568
569*** It is possible now, to access alternative buses than the default
570system or session bus.
571
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572*** dbus-register-{service,method,property}
573The -method and -property functions do not automatically register
574names anymore.
575
576The new function dbus-register-service registers a service known name
577on a D-Bus without simultaneously registering a property or a method.
412b9ee5 578
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579** Tramp
580
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581*** There exists a new inline access method "ksu" (kerberized su).
582
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583*** The following access methods are discontinued: "ssh1_old",
584"ssh2_old", "scp1_old", "scp2_old" and "fish".
585
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586** VC and related modes
587
588*** Support for pulling on distributed version control systems.
589The vc-update command now runs a "pull" operation, if it is supported.
590This updates the current branch from upstream. A prefix argument
591means to prompt the user for command specifics, e.g. a pull location.
592
593**** vc-pull is an alias for vc-update.
594
595**** Currently supported by Bzr.
596
597*** Support for merging on distributed version control systems.
598The vc-merge command now runs a "merge" operation, if it is supported.
599This merges another branch into the current one. A prefix argument
600means to prompt the user for command specifics, e.g. a merge location.
601
602**** Currently supported by Bzr.
603
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604** Miscellaneous
605
606---
607*** `copyright-fix-years' can optionally convert consecutive years to ranges.
608
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609\f
610* New Modes and Packages in Emacs 24.1
d445b3f8 611
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612** New global minor modes electric-pair-mode, electric-indent-mode,
613and electric-layout-mode.
3b843809 614
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615** pcase.el provides the ML-style pattern matching macro `pcase'.
616
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617** secrets.el is an implementation of the Secret Service API, an
618interface to password managers like GNOME Keyring or KDE Wallet. The
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619Secret Service API requires D-Bus for communication. The command
620`secrets-show-secrets' offers a buffer with a visualization of the
621secrets.
7725ebb7 622
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623** notifications.el provides an implementation of the Desktop
624Notifications API. It requires D-Bus for communication.
625
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626\f
627* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 628
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629** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
630passes it to the mail user agent function. This argument specifies an
631action for returning to the caller after finishing with the mail.
632This is currently used by Rmail to delete a mail window.
633
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634** For mouse click input events in the text area, the Y pixel
635coordinate in the POSITION list now counts from the top of the text
636area, excluding any header line. Previously, it counted from the top
637of the header line.
638
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639** Remove obsolete name `e' (use `float-e' instead).
640
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641** A backquote not followed by a space is now always treated as new-style.
642
fd5c9dfa 643** Test for special mode-class was moved from view-file to view-buffer.
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644FIXME: This only says what was changed, but not what are the
645programmer-visible consequences.
fd5c9dfa 646
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647** Passing a nil argument to a minor mode function now turns the mode
648 ON unconditionally.
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649
650** During startup, Emacs no longer adds entries for `menu-bar-lines'
651and `tool-bar-lines' to `default-frame-alist' and
652`initial-frame-alist'. With these alist entries omitted, `make-frame'
653checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
654determine whether to create a menu-bar or tool-bar, respectively.
655If the alist entries are added, they override the value of
656`menu-bar-mode'/`tool-bar-mode'.
657
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658** Regions created by mouse dragging are now normal active regions,
659similar to the ones created by shift-selection. In previous Emacs
660versions, these regions were delineated by `mouse-drag-overlay', which
661has now been removed.
d6d8ee7a 662
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663** cl.el no longer provides `cl-19'.
664
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665** The following functions and aliases, obsolete since at least Emacs 21.1,
666have been removed:
667comint-kill-output, decompose-composite-char, outline-visible,
668internal-find-face, internal-get-face, frame-update-faces,
669frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
670x-make-font-bold, x-make-font-demibold, x-make-font-unbold
671x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
672x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
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673iswitchb-default-keybindings, char-bytes, isearch-return-char,
674make-local-hook
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675
676** The following variables and aliases, obsolete since at least Emacs 21.1,
677have been removed:
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678checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
679font-lock-defaults-alist
3226d6ca 680
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681** The following files, obsolete since at least Emacs 21.1, have been removed:
682sc.el, x-menu.el, rnews.el, rnewspost.el
683
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684** FIXME finder-inf.el changes.
685
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686\f
687* Lisp changes in Emacs 24.1
9097e8af 688
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689** Removed the stack-trace-on-error variable.
690Also the debugger can now "continue" from an error, which means it will jump
691to the error handler as if the debugger had not been invoked instead of
692jumping all the way to the top-level.
693
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694** New function `read-char-choice' reads a restricted set of characters,
695discarding any inputs not inside the set.
696
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697** `image-library-alist' is renamed to `dynamic-library-alist'.
698The variable is now used to load all kind of supported dynamic libraries,
699not just image libraries. The previous name is still available as an
700obsolete alias.
701
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702** New variable syntax-propertize-function to set syntax-table properties.
703Replaces font-lock-syntactic-keywords which are now obsolete.
704This allows syntax-table properties to be set independently from font-lock:
705just call syntax-propertize to make sure the text is propertized.
706Together with this new variable come a new hook
707syntax-propertize-extend-region-functions, as well as two helper functions:
708syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
709as-is; and syntax-propertize-rules which provides a new way to specify
710syntactic rules.
711
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712** New hook post-self-insert-hook run at the end of self-insert-command.
713
7cf78aac 714+++
c5683ceb 715** Syntax tables support a new "comment style c" additionally to style b.
4e2db1fe 716** frame-local variables cannot be let-bound any more.
10dcc561 717** prog-mode is a new major-mode meant to be the parent of programming mode.
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718** define-minor-mode accepts a new keyword :variable.
719
b2957ea8 720** `delete-file' and `delete-directory' now accept optional arg TRASH.
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721Trashing is performed if TRASH and `delete-by-moving-to-trash' are
722both non-nil. Interactively, TRASH defaults to t, unless a prefix
723argument is supplied (see Trash changes, above).
53967e09 724
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725** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
726
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727** New completion style `substring'.
728
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729** `facemenu-read-color' is now an alias for `read-color'.
730The command `read-color' now requires a match for a color name or RGB
731triplet, instead of signalling an error if the user provides a invalid
732input.
733
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734** Tool-bars can display separators.
735Tool-bar separators are handled like menu separators in menu-bar maps,
94975270 736i.e. via menu entries of the form `(menu-item "--")'.
9317e499 737
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738** Image API
739
740*** When the image type is one of listed in `image-animated-types'
1546c559 741and the number of sub-images in the image is more than one, then the
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742new function `create-animated-image' creates an animated image where
743sub-images are displayed successively with the duration defined by
744`image-animate-max-time' and the delay between sub-images defined
745by the Graphic Control Extension of the image.
746
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747*** `image-extension-data' is renamed to `image-metadata'.
748
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749** XML and HTML parsing
750
751*** If Emacs is compiled with libxml2 support (which is the default),
4b9832a6 752two new Emacs Lisp-level functions are defined:
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753`libxml-parse-html-region' (which will parse "real world" HTML)
754and `libxml-parse-xml-region' (which parses XML). Both return an
4b9832a6
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755Emacs Lisp parse tree.
756
757FIXME: These should be front-ended by xml.el.
758
cf16af42 759** FIXME GnuTLS
71c17aec 760
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761** Isearch
762
763*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
764
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765** Progress reporters can now "spin".
766The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
767now be nil, or omitted. This makes a "non-numeric" reporter. Each
768time you call `progress-reporter-update' on that progress reporter,
769with a nil or omitted VALUE argument, the reporter message is
770displayed with a "spinning bar".
771
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772\f
773* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 774
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775** New configure.bat option --enable-checking builds emacs with extra
776runtime checks.
777
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778** New configure.bat option --distfiles to specify files to be
779 included in binary distribution
780
781** New make target `dist' to create binary disttribution for Windows
782 platform
783
05197f40 784\f
a933dad1 785----------------------------------------------------------------------
5b87ad55 786This file is part of GNU Emacs.
a933dad1 787
ab73e885 788GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 789it under the terms of the GNU General Public License as published by
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790the Free Software Foundation, either version 3 of the License, or
791(at your option) any later version.
5b87ad55
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792
793GNU Emacs is distributed in the hope that it will be useful,
794but WITHOUT ANY WARRANTY; without even the implied warranty of
795MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
796GNU General Public License for more details.
a933dad1 797
5b87ad55 798You should have received a copy of the GNU General Public License
ab73e885 799along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 800
05197f40 801\f
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802Local variables:
803mode: outline
804paragraph-separate: "[ \f]*$"
805end: