lisp/mail/rmail.el: Update autoload checksum.
[bpt/emacs.git] / etc / NEWS
CommitLineData
29b7722a 1GNU Emacs NEWS -- history of user-visible changes.
5b87ad55 2
eb199145 3Copyright (C) 2010 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.
9a21d88b
KS
7If possible, use M-x report-emacs-bug.
8
eb199145 9This file is about changes in Emacs version 24.
9a21d88b 10
eb199145
GM
11See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
12and NEWS.1-17 for changes in older Emacs versions.
9a21d88b
KS
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
adce950d
CY
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
338648ad
GM
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
aded53ff
GM
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
1ddac986
GM
40---
41** There is a new configure option --with-crt-dir.
42This is only useful if your crt*.o files are in a non-standard location.
43
e547b051
J
44---
45** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
46to configure. Note that other libraries used by Emacs, RSVG and GConf,
47also depend on Gtk+. You can disable them with --without-rsvg and
48--without-gconf.
49
d9170db5
DN
50** There is a new configure option --enable-use-lisp-union-type.
51This is only useful for Emacs developers to debug certain types of bugs.
52These is not a new feature; only the configure flag is new.
53
0bfd685e 54\f
eb199145 55* Startup Changes in Emacs 24.1
4a263588 56
0bfd685e 57\f
eb199145 58* Changes in Emacs 24.1
7841339b 59
0191e222
CY
60** New emacsclient argument --parent-id ID can be used to open a
61client frame in parent X window ID, via XEmbed. This works like the
62--parent-id argument to Emacs.
63
902a6d8d
SM
64** Completion can cycle, depending on completion-cycle-threshold.
65
2372f278
SM
66** auto-mode-case-fold is now enabled by default.
67
f4b6ba46
EZ
68+++
69** Emacs now supports display and editing of bidirectional text.
f4b6ba46
EZ
70
71See the node "Bidirectional Editing" in the Emacs Manual for some
72initial documentation.
73
74To turn this on in any given buffer, set the buffer-local variable
75`bidi-display-reordering' to a non-nil value. The default is nil.
76
77The buffer-local variable `bidi-paragraph-direction', if non-nil,
78forces each paragraph in the buffer to have its base direction
79according to the value of this variable. Possible values are
80`right-to-left' and `left-to-right'. If the value is nil (the
81default), Emacs determines the base direction of each paragraph from
82its text, as specified by the Unicode Bidirectional Algorithm.
83
d20e1419
EZ
84The function `current-bidi-paragraph-direction' returns the actual
85value of paragraph base direction at point.
86
f4b6ba46
EZ
87Reordering of bidirectional text for display in Emacs is a "Full
88bidirectionality" class implementation of the Unicode Bidirectional
89Algorithm.
90
46759717
EZ
91Note that some advanced display features, such as overlay strings and
92`display' text properties, do not yet work correctly when
93bidirectional text is reordered for display.
94
303500aa 95** GTK scroll-bars are now placed on the right by default.
52834b6b
CY
96Use `set-scroll-bar-mode' to change this.
97
20fe03ad 98** GTK tool bars can have just text, just images or images and text.
d8004abe 99Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
20fe03ad
JD
100is taken from the desktop settings.
101
1ecb2d3f
JD
102** Lucid menus and dialogs can display antialiased fonts if Emacs is built
103with Xft.
99852628 104
b7d65a5f
GM
105** Basic SELinux support has been added.
106This requires Emacs to be linked with libselinux at build time.
107
d8004abe
GM
108*** Emacs preserves the SELinux file context when backing up, and
109optionally when copying files. To this end, copy-file has an extra
110optional argument, and backup-buffer and friends include the SELinux
111context in their return values.
b7d65a5f
GM
112
113*** The new functions file-selinux-context and set-file-selinux-context
114get and set the SELinux context of a file.
115
a5bee597
MA
116*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
117for remote machines which support SELinux.
118
79ce172a 119** New scrolling commands `scroll-up-command' and `scroll-down-command'
7b05466f
JL
120(bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
121of buffer at first key-press (instead moves to top/bottom of buffer)
122when a new variable `scroll-error-top-bottom' is non-nil.
79ce172a 123
5a97d2da
JL
124** New scrolling commands `scroll-up-line' and `scroll-down-line'
125scroll a line instead of full screen.
126
a4b000fb
JL
127** New property `scroll-command' should be set on a command's symbol to
128define it as a scroll command affected by `scroll-preserve-screen-position.
9013a7f8 129
f1a5d776
CY
130** Trash changes
131
132*** `delete-by-moving-to-trash' now only affects commands that specify
133trashing. This avoids inadvertently trashing temporary files.
134
135*** Calling `delete-file' or `delete-directory' with a prefix argument
136now forces true deletion, regardless of `delete-by-moving-to-trash'.
137
f0bf7c8e
JL
138** New option `list-colors-sort' defines the color sort order
139for `list-colors-display'.
140
44198b6e
CY
141** An Emacs Lisp package manager is now included.
142This is a convenient way to download and install additional packages,
143from elpa.gnu.org. `M-x package-list-packages' shows a list of
144packages, which can be selected for installation.
145
146*** By default, all installed packages are loaded and activated
147automatically when Emacs starts up. To disable this, set
148`package-enable-at-startup' to nil. To change which packages are
149loaded, customize `package-load-list'.
150
0bfd685e 151\f
eb199145 152* Editing Changes in Emacs 24.1
b350bdf2 153
a982c7ec
CY
154** completion-at-point is now an alias for complete-symbol.
155
53967e09 156** mouse-region-delete-keys has been deleted.
b9229673
CY
157
158** Deletion changes
159
160*** New option `delete-active-region'.
161If non-nil, C-d, [delete], and DEL delete the region if it is active
162and no prefix argument is given. If set to `kill', these commands
163kill instead.
164
165*** New command `delete-forward-char', bound to C-d and [delete].
166This is meant for interactive use, and obeys `delete-active-region';
167delete-char, meant for Lisp, does not obey `delete-active-region'.
168
169*** `delete-backward-char' is now a Lisp function.
170Apart from obeying `delete-active-region', its behavior is unchanged.
171However, the byte compiler now warns if it is called from Lisp; you
172should use delete-char with a negative argument instead.
173
174*** The option `mouse-region-delete-keys' has been deleted.
175
f9d71b42
CY
176** Selection changes.
177
178The way Emacs interacts with the clipboard and primary selection, by
179default, is now similar to other X applications. In particular, kill
180and yank use the clipboard, in addition to the primary selection.
181
182*** `select-active-regions' now defaults to t.
183
184*** `x-select-enable-clipboard' now defaults to t.
185
186*** `mouse-drag-copy-region' now defaults to nil.
187
188*** `mouse-2' is now bound to `mouse-yank-primary'.
189
9bae34bf 190\f
eb199145 191* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 192
b3671a51
JL
193** Archive Mode has basic support to browse 7z archives.
194
27d3cd56
CY
195** In ido-mode, C-v is no longer bound to ido-toggle-vc.
196The reason is that this interferes with cua-mode.
197
c1e25821 198** partial-completion-mode is now obsolete.
79ccd68f
SM
199You can get a comparable behavior with:
200(setq completion-styles '(partial-completion initials))
201(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 202
18c812bd 203** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
52834b6b
CY
204** Customize
205
206*** Customize buffers now contain a search field.
207The search is performed using `customize-apropos'.
208To turn off the search field, set custom-search-field to nil .
209
210*** Custom options now start out hidden if at their default values.
211Use the arrow to the left of the option name to toggle visibility.
212
213*** custom-buffer-sort-alphabetically now defaults to t.
214
215*** The color widget now has a "Choose" button, which allows you to
216choose a color via list-colors-display.
217
f5d6548a
JL
218** Dired-x
219
220*** dired-jump and dired-jump-other-window called with a prefix argument
221read a file name from the minibuffer instead of using buffer-file-name.
222
855a2294
DN
223** VC and related modes
224
e97a42c1 225*** New VC commands: vc-log-incoming, vc-log-outgoing, vc-find-conflicted-file.
31527c56 226
6941ffec
DN
227**** vc-log-incoming for Git runs "git fetch" so that the necessary
228data is available locally.
229
eccdfe5f
DN
230**** vc-log-incoming and vc-log-outgoing for Git require version 1.7 (or newer).
231
54d3626e
DN
232*** New key bindings: C-x v I and C-x v O bound to vc-log-incoming and
233vc-log-outgoing, respectively.
234
855a2294
DN
235*** vc-dir for Bzr supports viewing shelve contents and shelving snapshots.
236
09158997 237*** Special markup can be added to log-edit buffers.
e97a42c1
SM
238The log-edit buffers are expected to have a format similar to email messages
239with headers of the form:
240 Author: <author of this change>
241 Summary: <one line summary of this change>
242 Fixes: <reference to the bug fixed by this change>
243Some backends handle some of those headers specially, but any unknown header
244is just left as is in the message, so it is not lost.
09158997 245
fab43c76
DN
246**** vc-git handles Author: and Date:
247**** vc-hg handles Author: and Date:
248**** vc-bzr handles Author:, Date: and Fixes:
249**** vc-mtn handles Author: and Date:
250
8117868f
DN
251** Directory local variables can apply to file-less buffers.
252For example, adding "(diff-mode . ((mode . whitespace)))" to your
d8004abe 253.dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
8117868f 254
7492acc9
MM
255** SQL Mode enhancements.
256
257*** Several variables have been marked as safe local variables.
258The variables `sql-product', `sql-user', `sql-server', and
259`sql-database' can now be safely used as local variables.
260
261*** Added ability to login with a port on MySQL.
262The custom variable `sql-port' can be specified for connection to
263MySQL servers.
264
265*** Custom variables control prompting for login parameters.
266Each supported product has a custom variable `sql-*-login-params'
267which is a list of the parameters to be prompted for before a
268connection is established.
269
270*** Added option `sql-send-terminator'.
271When set makes sure that each command sent with `sql-send-*' commands
272are properly terminated and submitted to the SQL processor.
273
274*** Added option `sql-oracle-scan-on'.
275When set commands sent to Oracle's SQL*Plus are scanned for strings
276starting with an ampersand and the user is asked for replacement
277text. In general, the SQL*Plus option SCAN should be set OFF under
278SQL interactive mode.
279
280*** SQL interactive mode will replace tabs with spaces.
281This prevents the comand interpretter for MySQL and Postgres from
282listing object name completions when being sent text via
283`sql-send-*' functions.
284
285*** An API for manipulating SQL product definitions has been added.
286
5e418f17
JL
287** s-region.el is now declared obsolete, superceded by shift-select-mode
288enabled by default in 23.1.
289
691cf4a0
NR
290** gdb-mi
291
292*** GDB User Interface migrated to GDB Machine Interface and now
293supports multithread non-stop debugging and debugging of several
294threads simultaneously.
295
eb199145
GM
296\f
297* New Modes and Packages in Emacs 24.1
d445b3f8 298
5ad4bef5
SM
299** smie.el is a package providing a simple generic indentation engine.
300
7725ebb7
MA
301** secrets.el is an implementation of the Secret Service API, an
302interface to password managers like GNOME Keyring or KDE Wallet. The
065f2743
MA
303Secret Service API requires D-Bus for communication. The command
304`secrets-show-secrets' offers a buffer with a visualization of the
305secrets.
7725ebb7 306
f9e78150
MA
307** notifications.el provides an implementation of the Desktop
308Notifications API. It requires D-Bus for communication.
309
eb199145
GM
310\f
311* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 312
288cf4e9
SM
313** A backquote not followed by a space is now always treated as new-style.
314
fd5c9dfa 315** Test for special mode-class was moved from view-file to view-buffer.
288cf4e9
SM
316FIXME: This only says what was changed, but not what are the
317programmer-visible consequences.
fd5c9dfa 318
3b7e1d5f
SM
319** Passing a nil argument to a minor mode function now turns the mode
320 ON unconditionally.
6431f2e6
CY
321
322** During startup, Emacs no longer adds entries for `menu-bar-lines'
323and `tool-bar-lines' to `default-frame-alist' and
324`initial-frame-alist'. With these alist entries omitted, `make-frame'
325checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
326determine whether to create a menu-bar or tool-bar, respectively.
327If the alist entries are added, they override the value of
328`menu-bar-mode'/`tool-bar-mode'.
329
fe0aa820
CY
330** Regions created by mouse dragging are now normal active regions,
331similar to the ones created by shift-selection. In previous Emacs
332versions, these regions were delineated by `mouse-drag-overlay', which
333has now been removed.
d6d8ee7a 334
eb199145
GM
335\f
336* Lisp changes in Emacs 24.1
9097e8af 337
4e2db1fe 338** frame-local variables cannot be let-bound any more.
10dcc561 339** prog-mode is a new major-mode meant to be the parent of programming mode.
f44379e7
SM
340** define-minor-mode accepts a new keyword :variable.
341
f1a5d776
CY
342** `delete-file' and `delete-directory now accept optional arg TRASH.
343Trashing is performed if TRASH and `delete-by-moving-to-trash' are
344both non-nil. Interactively, TRASH defaults to t, unless a prefix
345argument is supplied (see Trash changes, above).
53967e09 346
8f92b8ad
SM
347** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
348
00278747
SM
349** New completion style `substring'.
350
00fe2df1
JL
351** Image API
352
353*** When the image type is one of listed in `image-animated-types'
1546c559 354and the number of sub-images in the image is more than one, then the
00fe2df1
JL
355new function `create-animated-image' creates an animated image where
356sub-images are displayed successively with the duration defined by
357`image-animate-max-time' and the delay between sub-images defined
358by the Graphic Control Extension of the image.
359
1546c559
JL
360*** `image-extension-data' is renamed to `image-metadata'.
361
a6020335
MH
362** Isearch
363
364*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
365
9326ba26
CY
366** Progress reporters can now "spin".
367The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
368now be nil, or omitted. This makes a "non-numeric" reporter. Each
369time you call `progress-reporter-update' on that progress reporter,
370with a nil or omitted VALUE argument, the reporter message is
371displayed with a "spinning bar".
372
eb199145
GM
373\f
374* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 375
05197f40 376\f
a933dad1 377----------------------------------------------------------------------
5b87ad55 378This file is part of GNU Emacs.
a933dad1 379
ab73e885 380GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 381it under the terms of the GNU General Public License as published by
ab73e885
GM
382the Free Software Foundation, either version 3 of the License, or
383(at your option) any later version.
5b87ad55
GM
384
385GNU Emacs is distributed in the hope that it will be useful,
386but WITHOUT ANY WARRANTY; without even the implied warranty of
387MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
388GNU General Public License for more details.
a933dad1 389
5b87ad55 390You should have received a copy of the GNU General Public License
ab73e885 391along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 392
05197f40 393\f
a933dad1
DL
394Local variables:
395mode: outline
396paragraph-separate: "[ \f]*$"
397end: