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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
7c23dd44 272The default handling of clipboard and primary selections has been
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273changed to conform with other X applications. The exact changes are
274described below; in short, mouse commands to select and paste text now
275use the primary selection, while all other commands for killing and
276yanking text now use the clipboard.
7c23dd44 277
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278*** Merely selecting text (e.g. with drag-mouse-1) does not add it to
279the kill-ring. On systems with a primary selection separate from the
280clipboard (such as X), the selected text is put in the primary
281selection.
282
283*** mouse-2 is now bound to `mouse-yank-primary', which pastes from
284the primary selection regardless of the contents of the kill-ring.
285
286*** Commands that kill text or copy it to the kill-ring (M-w, C-w,
287C-k, etc.) also put the killed text into the clipboard. This change
288also means that the "Copy", "Cut", and "Paste" items in the "Edit"
289menu are now exactly equivalent to, respectively M-w, C-w, and C-y.
290
291*** Yank commands, such as C-y and M-y, retrieve text from the
292clipboard if it is available.
293
294*** The above changes are reflected in the following new defaults:
295
296**** `select-active-regions' now defaults to t.
d1b08c88 297It also accepts a new value, `only', which means to only set the
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298primary selection for temporarily active regions (usually made by
299mouse-dragging or shift-selection).
300
42d9cffa 301**** `mouse-2' is now bound to `mouse-yank-primary'.
7c9b11be 302Previously, it was bound to `mouse-yank-at-click' (which is now
4c0f50c9 303unbound by default).
f9d71b42 304
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305**** `x-select-enable-clipboard' now defaults to t on all platforms.
306Note that this variable was already non-nil by default on MS-Windows,
307which does not support the primary selection between applications.
f9d71b42 308
42d9cffa 309**** `x-select-enable-primary' now defaults to nil.
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310This variable exists only on X; its default value was t in previous
311versions.
2490cbbc 312
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313**** `mouse-drag-copy-region' now defaults to nil.
314
315*** To return to the previous behavior, where mouse commands use the
316clipboard, change `mouse-drag-copy-region' and (on X only)
317`x-select-enable-primary' to t. If you don't want Emacs to put the
318text into the clipboard, only to the primary selection, additionally
319set `x-select-enable-clipboard' to nil.
f9d71b42 320
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321*** Support for X cut buffers has been removed.
322
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323** New command `rectangle-number-lines', bound to `C-x r N', numbers
324the lines in the current rectangle. With an prefix argument, this
325prompts for a number to count from and for a format string.
326
9bae34bf 327\f
eb199145 328* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 329
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330** The Landmark game is now invoked with `landmark', not `lm'.
331
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332** Prolog mode has been completely revamped, with lots of additional
333functionality such as more intelligent indentation, electricty, support for
334more variants, including Mercury, and a lot more.
335
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336** shell-mode can track your cwd by reading it from your prompt.
337Just set shell-dir-cookie-re to an appropriate regexp.
338
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339** Modula-2 mode provides auto-indentation.
340
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341** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
342
360ac530 343** FIXME: xdg-open for browse-url and reportbug, 2010/08.
0ac3effe 344
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345** Archive Mode has basic support to browse 7z archives.
346
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347** browse-url has gotten a new variable that is used for mailto: URLs,
348 `browse-url-mailto-function', which defaults to `browse-url-mail'.
349
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350** ERC changes
351
352*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
353If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
354successful NickServ identification, or after `erc-autojoin-delay'
355seconds. The default value, 'ident, means to autojoin immediately
356after connecting.
357
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358*** New variable `erc-coding-system-precedence': If we use `undecided'
359as the server coding system, this variable will then be consulted.
360The default is to decode strings that can be decoded as utf-8 as
361utf-8, and do the normal `undecided' decoding for the rest.
362
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363** Eshell changes
364
365*** The default value of eshell-directory-name is a directory named
366"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
367exists, that is used instead.
368
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369** In ido-mode, C-v is no longer bound to ido-toggle-vc.
370The reason is that this interferes with cua-mode.
371
c1e25821 372** partial-completion-mode is now obsolete.
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373You can get a comparable behavior with:
374(setq completion-styles '(partial-completion initials))
375(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 376
18c812bd 377** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
b2957ea8 378
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379** server can listen on a specific port using the server-port option.
380
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381** Calendar, Diary, and Appt
382
383---
384*** The obsolete (since Emacs 22.1) method of enabling the appt package
385by adding appt-make-list to diary-hook has been removed. Use appt-activate.
386
387---
388*** Some appt variables (obsolete since Emacs 22.1) have been removed:
389appt-issue-message (use the function appt-activate)
390appt-visible/appt-msg-window (use the variable appt-display-format)
391
392---
393*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
394view-diary-entries, list-diary-entries, show-all-diary-entries
395
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396** Customize
397
398*** Customize buffers now contain a search field.
399The search is performed using `customize-apropos'.
42d9cffa 400To turn off the search field, set custom-search-field to nil.
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401
402*** Custom options now start out hidden if at their default values.
403Use the arrow to the left of the option name to toggle visibility.
404
405*** custom-buffer-sort-alphabetically now defaults to t.
406
407*** The color widget now has a "Choose" button, which allows you to
408choose a color via list-colors-display.
409
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410** Dired-x
411
412*** dired-jump and dired-jump-other-window called with a prefix argument
413read a file name from the minibuffer instead of using buffer-file-name.
414
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415** Directory local variables can apply to file-less buffers.
416For example, adding "(diff-mode . ((mode . whitespace)))" to your
d8004abe 417.dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
8117868f 418
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419** SQL Mode enhancements.
420
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421*** Several variables have been marked as safe local variables. The
422variables `sql-product', `sql-user', `sql-server', `sql-database' and
423`sql-port' can now be safely used as local variables.
7492acc9 424
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425*** `sql-dialect' is a synonym for `sql-product'.
426
74790210 427*** Added ability to login with a port on MySQL and Postgres.
7492acc9 428The custom variable `sql-port' can be specified for connection to
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429MySQL or Postgres servers. By default, the port is not listed in
430either login parameter, but will be added to the command line if set
431to a non-zero value.
7492acc9 432
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433*** Dynamic selection of product in an SQL interactive session.
434If you use `sql-product-interactive' to start an SQL interactive
435session it uses the current value of `sql-product'. Preceding the
436invocation with C-u will force it to ask for the product before
437creating the session.
438
439*** Renaming a SQL interactive buffer when it is created.
440Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
441`sql-mysql', etc.) with C-u will force a new interactive session to be
442started and will prompt for the new name. This will reduce the need
443for `sql-rename-buffer' is most common use cases.
444
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445*** Command continuation prompts in SQL interactive mode are suppressed.
446Multiple line commands in SQL interactive mode, generate command
447continuation prompts which needlessly confuse the output. These
448prompts are now filtered out from the output. This change impacts
449multiple line SQL statements entered with C-j between each line,
450statements yanked into the buffer and statements sent with
451`sql-send-*' functions.
452
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453*** Custom variables control prompting for login parameters.
454Each supported product has a custom variable `sql-*-login-params'
455which is a list of the parameters to be prompted for before a
456connection is established.
457
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458The lists consist of the following five tokens: `user', `password',
459`database', `server', and `port'. The order in which they appear is
460the order in which they are prompted. The tokens symbols can be
461replaced by a sublist starting with the token and followed by a plist
462which control the prompting for values. The tokens `user',
463`database', and `server' each can take a property of :default which
464specifies the value to be used if no value is entered. The
465`database', `server', and `port' tokens handle the :completion
466property which restricts the entry to either one of the values in the
467list or to one of the values returned by the function provided as the
468property value. The `database' and `server' tokens also accept the
469:file property whose value is a regexp to identify useful file names.
470
471 (user :default DEF)
472 (database :default DEF
473 :file FILEPAT
474 :completion COMPLETE)
475 (server :default DEF
476 :file FILEPAT
477 :completion COMPLETE)
478
479The FILEPAT when :file is specified is a regexp that will match valid
480file names (without the directory portion). Generally these strings
481will be of the form ".+\.SUF" where SUF is the desired file suffix.
482
483When :completion is specified, the COMPLETE corresponds to the
484PREDICATE argument to the `completing-read' function (a list of
485possible values or a function returning such a list).
5474c40f 486
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487*** Added `sql-connection-alist' to record login parameter values.
488An alist for recording different username, database and server
489values. If there are multiple databases that you connect to the
490parameters needed can be stored in this alist.
491
492For example, the following might be set in the user's init.el:
493
494 (setq sql-connection-alist
495 '((dev (sql-product 'sqlite)
496 (sql-database "/home/mmaug/dev.db"))
497 (prd (sql-product 'oracle)
498 (sql-user "mmaug")
499 (sql-database "iprd2a"))))
500
501This defines two connections named "dev" and "prd".
502
503*** Added `sql-connect' to use predefined connections.
504Sets the login parameters based on the values in the
505`sql-connection-alist' and start a SQL interactive session. Any
506values specified in the connection will not be prompted for.
507
508In the example above, if the user were to invoke M-x sql-connect, they
509would be prompted for the connection. The user can respond with
510either "dev" or "prd". The "dev" connection would connect to the
511SQLite database without prompting; the "prd" connection would prompt
512for the users password and then connect to the Oracle database.
513
d26b0ea9 514**** Added SQL->Start... submenu when connections are defined.
b2957ea8 515When connections have been defined, there is a submenu available that
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516allows the user to select one to start a SQLi session. The "Start
517SQLi Session" item moves to the "Start..." submenu when cnnections
518have been defined.
519
520**** Added "Save Connection" menu item in SQLi buffers.
521When a SQLi session is not started by a connection then
522`sql-save-connection' will gather the login params specified for the
523session and save them as a new connection.
524
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525*** List database objects and details.
526Once a SQL interactive session has been started, you can get a list of
527the objects in the database and see details of those objects. The
528objects shown and the details available are product specific.
529
530**** List all objects.
531Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
532objects" will list all the objects in the database. At a minimum it
533lists the tables and views in the database. Preceeding the command by
534universal argument may provide additional details or extend the
535listing to include other schemas objects. The list will appear in a
536separate window in view-mode.
537
538**** List Table details.
539Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
540details" will ask for the name of a database table or view and display
541the list of columns in the relation. Preceeding the comand with the
542universal argument may provide additional details about each column.
543The list will appear in a separate window in view-mode.
544
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545*** Added option `sql-send-terminator'.
546When set makes sure that each command sent with `sql-send-*' commands
547are properly terminated and submitted to the SQL processor.
548
549*** Added option `sql-oracle-scan-on'.
550When set commands sent to Oracle's SQL*Plus are scanned for strings
30c4d8dc
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551starting with an ampersand and the user is asked for replacement text.
552In general, the SQL*Plus option SCAN should always be set OFF under
553SQL interactive mode and this option used in its place.
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554
555*** SQL interactive mode will replace tabs with spaces.
556This prevents the comand interpretter for MySQL and Postgres from
557listing object name completions when being sent text via
558`sql-send-*' functions.
559
560*** An API for manipulating SQL product definitions has been added.
561
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562** sregex.el is now obsolete, since rx.el is a strict superset.
563
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564** s-region.el is now declared obsolete, superceded by shift-select-mode
565enabled by default in 23.1.
566
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567** gdb-mi
568
569*** GDB User Interface migrated to GDB Machine Interface and now
570supports multithread non-stop debugging and debugging of several
571threads simultaneously.
572
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573** D-Bus
574
575*** It is possible now, to access alternative buses than the default
576system or session bus.
577
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578*** dbus-register-{service,method,property}
579The -method and -property functions do not automatically register
580names anymore.
581
582The new function dbus-register-service registers a service known name
583on a D-Bus without simultaneously registering a property or a method.
412b9ee5 584
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585** Tramp
586
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587*** There exists a new inline access method "ksu" (kerberized su).
588
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589*** The following access methods are discontinued: "ssh1_old",
590"ssh2_old", "scp1_old", "scp2_old" and "fish".
591
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592** VC and related modes
593
594*** Support for pulling on distributed version control systems.
595The vc-update command now runs a "pull" operation, if it is supported.
596This updates the current branch from upstream. A prefix argument
597means to prompt the user for command specifics, e.g. a pull location.
598
599**** vc-pull is an alias for vc-update.
600
601**** Currently supported by Bzr.
602
603*** Support for merging on distributed version control systems.
604The vc-merge command now runs a "merge" operation, if it is supported.
605This merges another branch into the current one. A prefix argument
606means to prompt the user for command specifics, e.g. a merge location.
607
608**** Currently supported by Bzr.
609
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610\f
611* New Modes and Packages in Emacs 24.1
d445b3f8 612
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613** New global minor modes electric-pair-mode, electric-indent-mode,
614and electric-layout-mode.
3b843809 615
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SM
616** pcase.el provides the ML-style pattern matching macro `pcase'.
617
7725ebb7
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618** secrets.el is an implementation of the Secret Service API, an
619interface to password managers like GNOME Keyring or KDE Wallet. The
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620Secret Service API requires D-Bus for communication. The command
621`secrets-show-secrets' offers a buffer with a visualization of the
622secrets.
7725ebb7 623
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624** notifications.el provides an implementation of the Desktop
625Notifications API. It requires D-Bus for communication.
626
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627\f
628* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 629
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630** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
631passes it to the mail user agent function. This argument specifies an
632action for returning to the caller after finishing with the mail.
633This is currently used by Rmail to delete a mail window.
634
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635** For mouse click input events in the text area, the Y pixel
636coordinate in the POSITION list now counts from the top of the text
637area, excluding any header line. Previously, it counted from the top
638of the header line.
639
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640** Remove obsolete name `e' (use `float-e' instead).
641
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642** A backquote not followed by a space is now always treated as new-style.
643
fd5c9dfa 644** Test for special mode-class was moved from view-file to view-buffer.
288cf4e9
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645FIXME: This only says what was changed, but not what are the
646programmer-visible consequences.
fd5c9dfa 647
3b7e1d5f
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648** Passing a nil argument to a minor mode function now turns the mode
649 ON unconditionally.
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650
651** During startup, Emacs no longer adds entries for `menu-bar-lines'
652and `tool-bar-lines' to `default-frame-alist' and
653`initial-frame-alist'. With these alist entries omitted, `make-frame'
654checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
655determine whether to create a menu-bar or tool-bar, respectively.
656If the alist entries are added, they override the value of
657`menu-bar-mode'/`tool-bar-mode'.
658
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659** Regions created by mouse dragging are now normal active regions,
660similar to the ones created by shift-selection. In previous Emacs
661versions, these regions were delineated by `mouse-drag-overlay', which
662has now been removed.
d6d8ee7a 663
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664** cl.el no longer provides `cl-19'.
665
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666** The following functions and aliases, obsolete since at least Emacs 21.1,
667have been removed:
668comint-kill-output, decompose-composite-char, outline-visible,
669internal-find-face, internal-get-face, frame-update-faces,
670frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
671x-make-font-bold, x-make-font-demibold, x-make-font-unbold
672x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
673x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
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674iswitchb-default-keybindings, char-bytes, isearch-return-char,
675make-local-hook
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676
677** The following variables and aliases, obsolete since at least Emacs 21.1,
678have been removed:
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679checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
680font-lock-defaults-alist
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682** The following files, obsolete since at least Emacs 21.1, have been removed:
683sc.el, x-menu.el, rnews.el, rnewspost.el
684
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685** FIXME finder-inf.el changes.
686
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687\f
688* Lisp changes in Emacs 24.1
9097e8af 689
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690** New function `read-char-choice' reads a restricted set of characters,
691discarding any inputs not inside the set.
692
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693** `image-library-alist' is renamed to `dynamic-library-alist'.
694The variable is now used to load all kind of supported dynamic libraries,
695not just image libraries. The previous name is still available as an
696obsolete alias.
697
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698** New variable syntax-propertize-function to set syntax-table properties.
699Replaces font-lock-syntactic-keywords which are now obsolete.
700This allows syntax-table properties to be set independently from font-lock:
701just call syntax-propertize to make sure the text is propertized.
702Together with this new variable come a new hook
703syntax-propertize-extend-region-functions, as well as two helper functions:
704syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
705as-is; and syntax-propertize-rules which provides a new way to specify
706syntactic rules.
707
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708** New hook post-self-insert-hook run at the end of self-insert-command.
709
7cf78aac 710+++
c5683ceb 711** Syntax tables support a new "comment style c" additionally to style b.
4e2db1fe 712** frame-local variables cannot be let-bound any more.
10dcc561 713** prog-mode is a new major-mode meant to be the parent of programming mode.
f44379e7
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714** define-minor-mode accepts a new keyword :variable.
715
b2957ea8 716** `delete-file' and `delete-directory' now accept optional arg TRASH.
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717Trashing is performed if TRASH and `delete-by-moving-to-trash' are
718both non-nil. Interactively, TRASH defaults to t, unless a prefix
719argument is supplied (see Trash changes, above).
53967e09 720
8f92b8ad
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721** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
722
00278747
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723** New completion style `substring'.
724
9317e499
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725** `facemenu-read-color' is now an alias for `read-color'.
726The command `read-color' now requires a match for a color name or RGB
727triplet, instead of signalling an error if the user provides a invalid
728input.
729
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730** Tool-bars can display separators.
731Tool-bar separators are handled like menu separators in menu-bar maps,
94975270 732i.e. via menu entries of the form `(menu-item "--")'.
9317e499 733
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734** Image API
735
736*** When the image type is one of listed in `image-animated-types'
1546c559 737and the number of sub-images in the image is more than one, then the
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JL
738new function `create-animated-image' creates an animated image where
739sub-images are displayed successively with the duration defined by
740`image-animate-max-time' and the delay between sub-images defined
741by the Graphic Control Extension of the image.
742
1546c559
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743*** `image-extension-data' is renamed to `image-metadata'.
744
71c17aec
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745** XML and HTML parsing
746
747*** If Emacs is compiled with libxml2 support (which is the default),
4b9832a6 748two new Emacs Lisp-level functions are defined:
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MA
749`libxml-parse-html-region' (which will parse "real world" HTML)
750and `libxml-parse-xml-region' (which parses XML). Both return an
4b9832a6
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751Emacs Lisp parse tree.
752
753FIXME: These should be front-ended by xml.el.
754
cf16af42 755** FIXME GnuTLS
71c17aec 756
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MH
757** Isearch
758
759*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
760
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CY
761** Progress reporters can now "spin".
762The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
763now be nil, or omitted. This makes a "non-numeric" reporter. Each
764time you call `progress-reporter-update' on that progress reporter,
765with a nil or omitted VALUE argument, the reporter message is
766displayed with a "spinning bar".
767
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768\f
769* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 770
04779484
JB
771** New configure.bat option --enable-checking builds emacs with extra
772runtime checks.
773
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774** New configure.bat option --distfiles to specify files to be
775 included in binary distribution
776
777** New make target `dist' to create binary disttribution for Windows
778 platform
779
05197f40 780\f
a933dad1 781----------------------------------------------------------------------
5b87ad55 782This file is part of GNU Emacs.
a933dad1 783
ab73e885 784GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 785it under the terms of the GNU General Public License as published by
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786the Free Software Foundation, either version 3 of the License, or
787(at your option) any later version.
5b87ad55
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788
789GNU Emacs is distributed in the hope that it will be useful,
790but WITHOUT ANY WARRANTY; without even the implied warranty of
791MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
792GNU General Public License for more details.
a933dad1 793
5b87ad55 794You should have received a copy of the GNU General Public License
ab73e885 795along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 796
05197f40 797\f
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798Local variables:
799mode: outline
800paragraph-separate: "[ \f]*$"
801end: