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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 | |
aded53ff GM |
27 | --- |
28 | ** There are new configure options: | |
29 | --with-mmdf, --with-mail-unlink, --with-mailhost. | |
30 | These provide no new functionality, they just remove the need to edit | |
31 | lib-src/Makefile by hand in order to use the associated features. | |
32 | ||
b7d65a5f GM |
33 | ** Configure links against libselinux if it is found. |
34 | You can disable this by using --without-selinux. | |
35 | ||
0bfd685e | 36 | \f |
eb199145 | 37 | * Startup Changes in Emacs 24.1 |
4a263588 | 38 | |
0bfd685e | 39 | \f |
eb199145 | 40 | * Changes in Emacs 24.1 |
7841339b | 41 | |
2372f278 SM |
42 | ** auto-mode-case-fold is now enabled by default. |
43 | ||
f4b6ba46 EZ |
44 | +++ |
45 | ** Emacs now supports display and editing of bidirectional text. | |
46 | Warning: This is still very much experimental! The existing support | |
47 | is minimal, and when it's turned on (see below), many features are | |
48 | likely to give unexpected results, or break, or even crash! Use at | |
49 | your own risk! | |
50 | ||
51 | See the node "Bidirectional Editing" in the Emacs Manual for some | |
52 | initial documentation. | |
53 | ||
54 | To turn this on in any given buffer, set the buffer-local variable | |
55 | `bidi-display-reordering' to a non-nil value. The default is nil. | |
56 | ||
57 | The buffer-local variable `bidi-paragraph-direction', if non-nil, | |
58 | forces each paragraph in the buffer to have its base direction | |
59 | according to the value of this variable. Possible values are | |
60 | `right-to-left' and `left-to-right'. If the value is nil (the | |
61 | default), Emacs determines the base direction of each paragraph from | |
62 | its text, as specified by the Unicode Bidirectional Algorithm. | |
63 | ||
64 | Reordering of bidirectional text for display in Emacs is a "Full | |
65 | bidirectionality" class implementation of the Unicode Bidirectional | |
66 | Algorithm. | |
67 | ||
303500aa | 68 | ** GTK scroll-bars are now placed on the right by default. |
52834b6b CY |
69 | Use `set-scroll-bar-mode' to change this. |
70 | ||
20fe03ad | 71 | ** GTK tool bars can have just text, just images or images and text. |
d8004abe | 72 | Customize `tool-bar-style' to choose style. On a Gnome desktop, the default |
20fe03ad JD |
73 | is taken from the desktop settings. |
74 | ||
1ecb2d3f JD |
75 | ** Lucid menus and dialogs can display antialiased fonts if Emacs is built |
76 | with Xft. | |
99852628 | 77 | |
b7d65a5f GM |
78 | ** Basic SELinux support has been added. |
79 | This requires Emacs to be linked with libselinux at build time. | |
80 | ||
d8004abe GM |
81 | *** Emacs preserves the SELinux file context when backing up, and |
82 | optionally when copying files. To this end, copy-file has an extra | |
83 | optional argument, and backup-buffer and friends include the SELinux | |
84 | context in their return values. | |
b7d65a5f GM |
85 | |
86 | *** The new functions file-selinux-context and set-file-selinux-context | |
87 | get and set the SELinux context of a file. | |
88 | ||
79ce172a | 89 | ** New scrolling commands `scroll-up-command' and `scroll-down-command' |
7b05466f JL |
90 | (bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom |
91 | of buffer at first key-press (instead moves to top/bottom of buffer) | |
92 | when a new variable `scroll-error-top-bottom' is non-nil. | |
79ce172a | 93 | |
5a97d2da JL |
94 | ** New scrolling commands `scroll-up-line' and `scroll-down-line' |
95 | scroll a line instead of full screen. | |
96 | ||
a4b000fb JL |
97 | ** New property `scroll-command' should be set on a command's symbol to |
98 | define it as a scroll command affected by `scroll-preserve-screen-position. | |
9013a7f8 | 99 | |
0bfd685e | 100 | \f |
eb199145 | 101 | * Editing Changes in Emacs 24.1 |
b350bdf2 | 102 | |
9bae34bf | 103 | \f |
eb199145 | 104 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
efeb796b | 105 | |
b3671a51 JL |
106 | ** Archive Mode has basic support to browse 7z archives. |
107 | ||
c1e25821 | 108 | ** partial-completion-mode is now obsolete. |
e97a42c1 SM |
109 | You can get the same behavior with |
110 | (setq completion-styles '(partial-completion initials)). | |
c1e25821 | 111 | |
18c812bd | 112 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
52834b6b CY |
113 | ** Customize |
114 | ||
115 | *** Customize buffers now contain a search field. | |
116 | The search is performed using `customize-apropos'. | |
117 | To turn off the search field, set custom-search-field to nil . | |
118 | ||
119 | *** Custom options now start out hidden if at their default values. | |
120 | Use the arrow to the left of the option name to toggle visibility. | |
121 | ||
122 | *** custom-buffer-sort-alphabetically now defaults to t. | |
123 | ||
124 | *** The color widget now has a "Choose" button, which allows you to | |
125 | choose a color via list-colors-display. | |
126 | ||
855a2294 DN |
127 | ** VC and related modes |
128 | ||
e97a42c1 | 129 | *** New VC commands: vc-log-incoming, vc-log-outgoing, vc-find-conflicted-file. |
31527c56 | 130 | |
855a2294 DN |
131 | *** vc-dir for Bzr supports viewing shelve contents and shelving snapshots. |
132 | ||
09158997 | 133 | *** Special markup can be added to log-edit buffers. |
e97a42c1 SM |
134 | The log-edit buffers are expected to have a format similar to email messages |
135 | with headers of the form: | |
136 | Author: <author of this change> | |
137 | Summary: <one line summary of this change> | |
138 | Fixes: <reference to the bug fixed by this change> | |
139 | Some backends handle some of those headers specially, but any unknown header | |
140 | is just left as is in the message, so it is not lost. | |
09158997 | 141 | |
8117868f DN |
142 | ** Directory local variables can apply to file-less buffers. |
143 | For example, adding "(diff-mode . ((mode . whitespace)))" to your | |
d8004abe | 144 | .dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers. |
8117868f | 145 | |
5e418f17 JL |
146 | ** s-region.el is now declared obsolete, superceded by shift-select-mode |
147 | enabled by default in 23.1. | |
148 | ||
691cf4a0 NR |
149 | ** gdb-mi |
150 | ||
151 | *** GDB User Interface migrated to GDB Machine Interface and now | |
152 | supports multithread non-stop debugging and debugging of several | |
153 | threads simultaneously. | |
154 | ||
eb199145 GM |
155 | \f |
156 | * New Modes and Packages in Emacs 24.1 | |
d445b3f8 | 157 | |
7725ebb7 MA |
158 | ** secrets.el is an implementation of the Secret Service API, an |
159 | interface to password managers like GNOME Keyring or KDE Wallet. The | |
160 | Secret Service API requires D-Bus for communication. | |
161 | ||
eb199145 GM |
162 | \f |
163 | * Incompatible Lisp Changes in Emacs 24.1 | |
6dfcbe31 | 164 | |
fd5c9dfa JL |
165 | ** Test for special mode-class was moved from view-file to view-buffer. |
166 | ||
3b7e1d5f SM |
167 | ** Passing a nil argument to a minor mode function now turns the mode |
168 | ON unconditionally. | |
eb199145 GM |
169 | \f |
170 | * Lisp changes in Emacs 24.1 | |
9097e8af | 171 | |
00278747 SM |
172 | ** New completion style `substring'. |
173 | ||
00fe2df1 JL |
174 | ** Image API |
175 | ||
176 | *** When the image type is one of listed in `image-animated-types' | |
1546c559 | 177 | and the number of sub-images in the image is more than one, then the |
00fe2df1 JL |
178 | new function `create-animated-image' creates an animated image where |
179 | sub-images are displayed successively with the duration defined by | |
180 | `image-animate-max-time' and the delay between sub-images defined | |
181 | by the Graphic Control Extension of the image. | |
182 | ||
1546c559 JL |
183 | *** `image-extension-data' is renamed to `image-metadata'. |
184 | ||
9326ba26 CY |
185 | ** Progress reporters can now "spin". |
186 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can | |
187 | now be nil, or omitted. This makes a "non-numeric" reporter. Each | |
188 | time you call `progress-reporter-update' on that progress reporter, | |
189 | with a nil or omitted VALUE argument, the reporter message is | |
190 | displayed with a "spinning bar". | |
191 | ||
eb199145 GM |
192 | \f |
193 | * Changes in Emacs 24.1 on non-free operating systems | |
d53a60a6 | 194 | |
05197f40 | 195 | \f |
a933dad1 | 196 | ---------------------------------------------------------------------- |
5b87ad55 | 197 | This file is part of GNU Emacs. |
a933dad1 | 198 | |
ab73e885 | 199 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 200 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
201 | the Free Software Foundation, either version 3 of the License, or |
202 | (at your option) any later version. | |
5b87ad55 GM |
203 | |
204 | GNU Emacs is distributed in the hope that it will be useful, | |
205 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
206 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
207 | GNU General Public License for more details. | |
a933dad1 | 208 | |
5b87ad55 | 209 | You should have received a copy of the GNU General Public License |
ab73e885 | 210 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 211 | |
05197f40 | 212 | \f |
a933dad1 DL |
213 | Local variables: |
214 | mode: outline | |
215 | paragraph-separate: "[ \f]*$" | |
216 | end: |