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29b7722a | 1 | GNU Emacs NEWS -- history of user-visible changes. |
5b87ad55 | 2 | |
eb199145 | 3 | Copyright (C) 2010 Free Software Foundation, Inc. |
5b87ad55 | 4 | See the end of the file for license conditions. |
a933dad1 | 5 | |
893db5bc | 6 | Please send Emacs bug reports to bug-gnu-emacs@gnu.org. |
9a21d88b KS |
7 | If possible, use M-x report-emacs-bug. |
8 | ||
eb199145 | 9 | This file is about changes in Emacs version 24. |
9a21d88b | 10 | |
eb199145 GM |
11 | See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, |
12 | and NEWS.1-17 for changes in older Emacs versions. | |
9a21d88b KS |
13 | |
14 | You can narrow news to a specific version by calling `view-emacs-news' | |
15 | with a prefix argument or by typing C-u C-h C-n. | |
3f7194ed | 16 | |
adce950d CY |
17 | |
18 | Temporary note: | |
19 | +++ indicates that the appropriate manual has already been updated. | |
20 | --- means no change in the manuals is called for. | |
21 | When you add a new item, please add it without either +++ or --- | |
22 | so 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. |
28 | You can disable this by using --without-selinux. | |
29 | ||
30 | --- | |
31 | ** By default, the installed Info and man pages are compressed. | |
32 | You 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. | |
37 | These provide no new functionality, they just remove the need to edit | |
38 | lib-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. | |
42 | This 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 | |
46 | to configure. Note that other libraries used by Emacs, RSVG and GConf, | |
47 | also 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. |
51 | This is only useful for Emacs developers to debug certain types of bugs. | |
52 | These 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 |
61 | client 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 | |
71 | See the node "Bidirectional Editing" in the Emacs Manual for some | |
72 | initial documentation. | |
73 | ||
74 | To 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 | ||
77 | The buffer-local variable `bidi-paragraph-direction', if non-nil, | |
78 | forces each paragraph in the buffer to have its base direction | |
79 | according to the value of this variable. Possible values are | |
80 | `right-to-left' and `left-to-right'. If the value is nil (the | |
81 | default), Emacs determines the base direction of each paragraph from | |
82 | its text, as specified by the Unicode Bidirectional Algorithm. | |
83 | ||
d20e1419 EZ |
84 | The function `current-bidi-paragraph-direction' returns the actual |
85 | value of paragraph base direction at point. | |
86 | ||
f4b6ba46 EZ |
87 | Reordering of bidirectional text for display in Emacs is a "Full |
88 | bidirectionality" class implementation of the Unicode Bidirectional | |
89 | Algorithm. | |
90 | ||
46759717 EZ |
91 | Note that some advanced display features, such as overlay strings and |
92 | `display' text properties, do not yet work correctly when | |
93 | bidirectional text is reordered for display. | |
94 | ||
303500aa | 95 | ** GTK scroll-bars are now placed on the right by default. |
52834b6b CY |
96 | Use `set-scroll-bar-mode' to change this. |
97 | ||
20fe03ad | 98 | ** GTK tool bars can have just text, just images or images and text. |
d8004abe | 99 | Customize `tool-bar-style' to choose style. On a Gnome desktop, the default |
20fe03ad JD |
100 | is taken from the desktop settings. |
101 | ||
1ecb2d3f JD |
102 | ** Lucid menus and dialogs can display antialiased fonts if Emacs is built |
103 | with Xft. | |
99852628 | 104 | |
b7d65a5f GM |
105 | ** Basic SELinux support has been added. |
106 | This requires Emacs to be linked with libselinux at build time. | |
107 | ||
d8004abe GM |
108 | *** Emacs preserves the SELinux file context when backing up, and |
109 | optionally when copying files. To this end, copy-file has an extra | |
110 | optional argument, and backup-buffer and friends include the SELinux | |
111 | context in their return values. | |
b7d65a5f GM |
112 | |
113 | *** The new functions file-selinux-context and set-file-selinux-context | |
114 | get and set the SELinux context of a file. | |
115 | ||
a5bee597 MA |
116 | *** Tramp offers handlers for file-selinux-context and set-file-selinux-context |
117 | for 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 |
121 | of buffer at first key-press (instead moves to top/bottom of buffer) | |
122 | when 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' |
125 | scroll a line instead of full screen. | |
126 | ||
a4b000fb JL |
127 | ** New property `scroll-command' should be set on a command's symbol to |
128 | define 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 | |
133 | trashing. This avoids inadvertently trashing temporary files. | |
134 | ||
135 | *** Calling `delete-file' or `delete-directory' with a prefix argument | |
136 | now forces true deletion, regardless of `delete-by-moving-to-trash'. | |
137 | ||
f0bf7c8e JL |
138 | ** New option `list-colors-sort' defines the color sort order |
139 | for `list-colors-display'. | |
140 | ||
44198b6e CY |
141 | ** An Emacs Lisp package manager is now included. |
142 | This is a convenient way to download and install additional packages, | |
143 | from elpa.gnu.org. `M-x package-list-packages' shows a list of | |
144 | packages, which can be selected for installation. | |
145 | ||
146 | *** By default, all installed packages are loaded and activated | |
147 | automatically when Emacs starts up. To disable this, set | |
148 | `package-enable-at-startup' to nil. To change which packages are | |
149 | loaded, 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'. | |
161 | If non-nil, C-d, [delete], and DEL delete the region if it is active | |
162 | and no prefix argument is given. If set to `kill', these commands | |
163 | kill instead. | |
164 | ||
165 | *** New command `delete-forward-char', bound to C-d and [delete]. | |
166 | This is meant for interactive use, and obeys `delete-active-region'; | |
167 | delete-char, meant for Lisp, does not obey `delete-active-region'. | |
168 | ||
169 | *** `delete-backward-char' is now a Lisp function. | |
170 | Apart from obeying `delete-active-region', its behavior is unchanged. | |
171 | However, the byte compiler now warns if it is called from Lisp; you | |
172 | should use delete-char with a negative argument instead. | |
173 | ||
174 | *** The option `mouse-region-delete-keys' has been deleted. | |
175 | ||
9bae34bf | 176 | \f |
eb199145 | 177 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
efeb796b | 178 | |
b3671a51 JL |
179 | ** Archive Mode has basic support to browse 7z archives. |
180 | ||
27d3cd56 CY |
181 | ** In ido-mode, C-v is no longer bound to ido-toggle-vc. |
182 | The reason is that this interferes with cua-mode. | |
183 | ||
c1e25821 | 184 | ** partial-completion-mode is now obsolete. |
79ccd68f SM |
185 | You can get a comparable behavior with: |
186 | (setq completion-styles '(partial-completion initials)) | |
187 | (setq completion-pcm-complete-word-inserts-delimiters t) | |
c1e25821 | 188 | |
18c812bd | 189 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
52834b6b CY |
190 | ** Customize |
191 | ||
192 | *** Customize buffers now contain a search field. | |
193 | The search is performed using `customize-apropos'. | |
194 | To turn off the search field, set custom-search-field to nil . | |
195 | ||
196 | *** Custom options now start out hidden if at their default values. | |
197 | Use the arrow to the left of the option name to toggle visibility. | |
198 | ||
199 | *** custom-buffer-sort-alphabetically now defaults to t. | |
200 | ||
201 | *** The color widget now has a "Choose" button, which allows you to | |
202 | choose a color via list-colors-display. | |
203 | ||
f5d6548a JL |
204 | ** Dired-x |
205 | ||
206 | *** dired-jump and dired-jump-other-window called with a prefix argument | |
207 | read a file name from the minibuffer instead of using buffer-file-name. | |
208 | ||
855a2294 DN |
209 | ** VC and related modes |
210 | ||
e97a42c1 | 211 | *** New VC commands: vc-log-incoming, vc-log-outgoing, vc-find-conflicted-file. |
31527c56 | 212 | |
6941ffec DN |
213 | **** vc-log-incoming for Git runs "git fetch" so that the necessary |
214 | data is available locally. | |
215 | ||
eccdfe5f DN |
216 | **** vc-log-incoming and vc-log-outgoing for Git require version 1.7 (or newer). |
217 | ||
54d3626e DN |
218 | *** New key bindings: C-x v I and C-x v O bound to vc-log-incoming and |
219 | vc-log-outgoing, respectively. | |
220 | ||
855a2294 DN |
221 | *** vc-dir for Bzr supports viewing shelve contents and shelving snapshots. |
222 | ||
09158997 | 223 | *** Special markup can be added to log-edit buffers. |
e97a42c1 SM |
224 | The log-edit buffers are expected to have a format similar to email messages |
225 | with headers of the form: | |
226 | Author: <author of this change> | |
227 | Summary: <one line summary of this change> | |
228 | Fixes: <reference to the bug fixed by this change> | |
229 | Some backends handle some of those headers specially, but any unknown header | |
230 | is just left as is in the message, so it is not lost. | |
09158997 | 231 | |
fab43c76 DN |
232 | **** vc-git handles Author: and Date: |
233 | **** vc-hg handles Author: and Date: | |
234 | **** vc-bzr handles Author:, Date: and Fixes: | |
235 | **** vc-mtn handles Author: and Date: | |
236 | ||
8117868f DN |
237 | ** Directory local variables can apply to file-less buffers. |
238 | For example, adding "(diff-mode . ((mode . whitespace)))" to your | |
d8004abe | 239 | .dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers. |
8117868f | 240 | |
7492acc9 MM |
241 | ** SQL Mode enhancements. |
242 | ||
243 | *** Several variables have been marked as safe local variables. | |
244 | The variables `sql-product', `sql-user', `sql-server', and | |
245 | `sql-database' can now be safely used as local variables. | |
246 | ||
247 | *** Added ability to login with a port on MySQL. | |
248 | The custom variable `sql-port' can be specified for connection to | |
249 | MySQL servers. | |
250 | ||
251 | *** Custom variables control prompting for login parameters. | |
252 | Each supported product has a custom variable `sql-*-login-params' | |
253 | which is a list of the parameters to be prompted for before a | |
254 | connection is established. | |
255 | ||
256 | *** Added option `sql-send-terminator'. | |
257 | When set makes sure that each command sent with `sql-send-*' commands | |
258 | are properly terminated and submitted to the SQL processor. | |
259 | ||
260 | *** Added option `sql-oracle-scan-on'. | |
261 | When set commands sent to Oracle's SQL*Plus are scanned for strings | |
262 | starting with an ampersand and the user is asked for replacement | |
263 | text. In general, the SQL*Plus option SCAN should be set OFF under | |
264 | SQL interactive mode. | |
265 | ||
266 | *** SQL interactive mode will replace tabs with spaces. | |
267 | This prevents the comand interpretter for MySQL and Postgres from | |
268 | listing object name completions when being sent text via | |
269 | `sql-send-*' functions. | |
270 | ||
271 | *** An API for manipulating SQL product definitions has been added. | |
272 | ||
5e418f17 JL |
273 | ** s-region.el is now declared obsolete, superceded by shift-select-mode |
274 | enabled by default in 23.1. | |
275 | ||
691cf4a0 NR |
276 | ** gdb-mi |
277 | ||
278 | *** GDB User Interface migrated to GDB Machine Interface and now | |
279 | supports multithread non-stop debugging and debugging of several | |
280 | threads simultaneously. | |
281 | ||
eb199145 GM |
282 | \f |
283 | * New Modes and Packages in Emacs 24.1 | |
d445b3f8 | 284 | |
5ad4bef5 SM |
285 | ** smie.el is a package providing a simple generic indentation engine. |
286 | ||
7725ebb7 MA |
287 | ** secrets.el is an implementation of the Secret Service API, an |
288 | interface to password managers like GNOME Keyring or KDE Wallet. The | |
065f2743 MA |
289 | Secret Service API requires D-Bus for communication. The command |
290 | `secrets-show-secrets' offers a buffer with a visualization of the | |
291 | secrets. | |
7725ebb7 | 292 | |
f9e78150 MA |
293 | ** notifications.el provides an implementation of the Desktop |
294 | Notifications API. It requires D-Bus for communication. | |
295 | ||
eb199145 GM |
296 | \f |
297 | * Incompatible Lisp Changes in Emacs 24.1 | |
6dfcbe31 | 298 | |
288cf4e9 SM |
299 | ** A backquote not followed by a space is now always treated as new-style. |
300 | ||
fd5c9dfa | 301 | ** Test for special mode-class was moved from view-file to view-buffer. |
288cf4e9 SM |
302 | FIXME: This only says what was changed, but not what are the |
303 | programmer-visible consequences. | |
fd5c9dfa | 304 | |
3b7e1d5f SM |
305 | ** Passing a nil argument to a minor mode function now turns the mode |
306 | ON unconditionally. | |
6431f2e6 CY |
307 | |
308 | ** During startup, Emacs no longer adds entries for `menu-bar-lines' | |
309 | and `tool-bar-lines' to `default-frame-alist' and | |
310 | `initial-frame-alist'. With these alist entries omitted, `make-frame' | |
311 | checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to | |
312 | determine whether to create a menu-bar or tool-bar, respectively. | |
313 | If the alist entries are added, they override the value of | |
314 | `menu-bar-mode'/`tool-bar-mode'. | |
315 | ||
fe0aa820 CY |
316 | ** Regions created by mouse dragging are now normal active regions, |
317 | similar to the ones created by shift-selection. In previous Emacs | |
318 | versions, these regions were delineated by `mouse-drag-overlay', which | |
319 | has now been removed. | |
d6d8ee7a | 320 | |
eb199145 GM |
321 | \f |
322 | * Lisp changes in Emacs 24.1 | |
9097e8af | 323 | |
4e2db1fe | 324 | ** frame-local variables cannot be let-bound any more. |
10dcc561 | 325 | ** prog-mode is a new major-mode meant to be the parent of programming mode. |
f44379e7 SM |
326 | ** define-minor-mode accepts a new keyword :variable. |
327 | ||
f1a5d776 CY |
328 | ** `delete-file' and `delete-directory now accept optional arg TRASH. |
329 | Trashing is performed if TRASH and `delete-by-moving-to-trash' are | |
330 | both non-nil. Interactively, TRASH defaults to t, unless a prefix | |
331 | argument is supplied (see Trash changes, above). | |
53967e09 | 332 | |
8f92b8ad SM |
333 | ** buffer-substring-filters is obsoleted by filter-buffer-substring-functions. |
334 | ||
00278747 SM |
335 | ** New completion style `substring'. |
336 | ||
00fe2df1 JL |
337 | ** Image API |
338 | ||
339 | *** When the image type is one of listed in `image-animated-types' | |
1546c559 | 340 | and the number of sub-images in the image is more than one, then the |
00fe2df1 JL |
341 | new function `create-animated-image' creates an animated image where |
342 | sub-images are displayed successively with the duration defined by | |
343 | `image-animate-max-time' and the delay between sub-images defined | |
344 | by the Graphic Control Extension of the image. | |
345 | ||
1546c559 JL |
346 | *** `image-extension-data' is renamed to `image-metadata'. |
347 | ||
a6020335 MH |
348 | ** Isearch |
349 | ||
350 | *** New hook `isearch-update-post-hook' that runs in `isearch-update'. | |
351 | ||
9326ba26 CY |
352 | ** Progress reporters can now "spin". |
353 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can | |
354 | now be nil, or omitted. This makes a "non-numeric" reporter. Each | |
355 | time you call `progress-reporter-update' on that progress reporter, | |
356 | with a nil or omitted VALUE argument, the reporter message is | |
357 | displayed with a "spinning bar". | |
358 | ||
eb199145 GM |
359 | \f |
360 | * Changes in Emacs 24.1 on non-free operating systems | |
d53a60a6 | 361 | |
05197f40 | 362 | \f |
a933dad1 | 363 | ---------------------------------------------------------------------- |
5b87ad55 | 364 | This file is part of GNU Emacs. |
a933dad1 | 365 | |
ab73e885 | 366 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 367 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
368 | the Free Software Foundation, either version 3 of the License, or |
369 | (at your option) any later version. | |
5b87ad55 GM |
370 | |
371 | GNU Emacs is distributed in the hope that it will be useful, | |
372 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
373 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
374 | GNU General Public License for more details. | |
a933dad1 | 375 | |
5b87ad55 | 376 | You should have received a copy of the GNU General Public License |
ab73e885 | 377 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 378 | |
05197f40 | 379 | \f |
a933dad1 DL |
380 | Local variables: |
381 | mode: outline | |
382 | paragraph-separate: "[ \f]*$" | |
383 | end: |