* NEWS: Mention `url-retrieve-queue', (:file "file") and `server-eval-at'.
[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
d064e6a6 50---
f042970d 51** New translation of the Emacs Tutorial in Hebrew is available.
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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
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65** On Windows, Emacs now warns when the obsolete _emacs init file is used,
66and also when HOME is set to C:\ by default.
8a05b668 67
0bfd685e 68\f
eb199145 69* Changes in Emacs 24.1
7841339b 70
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71** Completion in a non-minibuffer now tries to detect the end of completion
72and pops down the *Completions* buffer accordingly.
73
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74** emacsclient changes
75
76*** New emacsclient argument --parent-id ID can be used to open a
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77client frame in parent X window ID, via XEmbed. This works like the
78--parent-id argument to Emacs.
79
15a7a774 80+++
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81*** New emacsclient argument -q/--quiet suppresses some status messages.
82
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83*** If emacsclient shuts down as a result of Emacs signalling an
84error, its exit status is 1.
85
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86** Completion can cycle, depending on completion-cycle-threshold.
87
3ec03f7e 88** `completing-read' can be customized using the new variable
f042970d 89`completing-read-function'.
3ec03f7e 90
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91** auto-mode-case-fold is now enabled by default.
92
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93+++
94** Emacs now supports display and editing of bidirectional text.
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95
96See the node "Bidirectional Editing" in the Emacs Manual for some
97initial documentation.
98
99To turn this on in any given buffer, set the buffer-local variable
100`bidi-display-reordering' to a non-nil value. The default is nil.
101
102The buffer-local variable `bidi-paragraph-direction', if non-nil,
103forces each paragraph in the buffer to have its base direction
104according to the value of this variable. Possible values are
105`right-to-left' and `left-to-right'. If the value is nil (the
106default), Emacs determines the base direction of each paragraph from
107its text, as specified by the Unicode Bidirectional Algorithm.
108
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109The function `current-bidi-paragraph-direction' returns the actual
110value of paragraph base direction at point.
111
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112Reordering of bidirectional text for display in Emacs is a "Full
113bidirectionality" class implementation of the Unicode Bidirectional
114Algorithm.
115
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116Note that some advanced display features, such as overlay strings and
117`display' text properties, do not yet work correctly when
118bidirectional text is reordered for display.
119
303500aa 120** GTK scroll-bars are now placed on the right by default.
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121Use `set-scroll-bar-mode' to change this.
122
20fe03ad 123** GTK tool bars can have just text, just images or images and text.
d8004abe 124Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
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125is taken from the desktop settings.
126
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127** GTK tool bars can be placed on the left/right or top/bottom of the frame.
128The frame-parameter tool-bar-position controls this. It takes the values
1c0d77cc 129top, left, right or bottom. The Options => Show/Hide menu has entries
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130for this.
131
8740c12d 132** ImageMagick support.
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133It is now possible to use the ImageMagick library to load many new
134image formats in Emacs. By default, Emacs links with the ImageMagick
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135libraries if they are present at build time. This needs ImageMagick
1366.2.8 or newer (versions newer than 6.0.7 _may_ work but have not been
137tested). To disable ImageMagick support, use the configure option
fa6996bc 138`--without-imagemagick'.
16a91140 139
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140The new function `imagemagick-types' returns a list of image file
141extensions that your installation of ImageMagick supports. The
142function `imagemagick-register-types' enables ImageMagick support for
b2957ea8 143these image types, minus those listed in `imagemagick-types-inhibit'.
16a91140 144
8740c12d 145See the Emacs Lisp Reference Manual for more information.
16a91140 146
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147** The colors for selected text (the region face) are taken from the GTK
148theme when Emacs is built with GTK.
149
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150** Emacs uses GTK tooltips by default if built with GTK. You can turn that
151off by customizing x-gtk-use-system-tooltips.
152
1ecb2d3f 153** Lucid menus and dialogs can display antialiased fonts if Emacs is built
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154with Xft. To change font, use the X resource font, for example:
155Emacs.pane.menubar.font: Courier-12
99852628 156
0eb025fb 157+++
f042970d 158** Enhanced support for characters that have no glyphs in available fonts.
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159If a character has no glyphs in any of the available fonts, Emacs by
160default will display it either as a hexadecimal code in a box or as a
161thin 1-pixel space. In addition to these two methods, Emacs can
162display these characters as empty box, as an acronym, or not display
163them at all. To change how these characters are displayed, customize
164the variable `glyphless-char-display-control'.
165
166On character terminals these methods are used for characters that
167cannot be encoded by the `terminal-coding-system'.
168
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169** On graphical displays, the mode-line no longer ends in dashes.
170
5ffb62aa 171** On Nextstep/OSX, the menu bar can be hidden by customizing
f042970d 172ns-auto-hide-menu-bar.
5ffb62aa 173
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174** Basic SELinux support has been added.
175This requires Emacs to be linked with libselinux at build time.
176
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177*** Emacs preserves the SELinux file context when backing up, and
178optionally when copying files. To this end, copy-file has an extra
179optional argument, and backup-buffer and friends include the SELinux
180context in their return values.
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181
182*** The new functions file-selinux-context and set-file-selinux-context
183get and set the SELinux context of a file.
184
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185*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
186for remote machines which support SELinux.
187
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188+++
189** The function format-time-string now supports the %N directive, for
190higher-resolution time stamps.
191
9c524fcb 192** The function kill-emacs is now run upon receipt of the signals SIGTERM
383ebd15 193and SIGHUP, and upon SIGINT in batch mode.
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194
195** kill-emacs-hook is now also run in batch mode.
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196If you have code that adds something to kill-emacs-hook, you should
197consider if it is still appropriate to add it in the noninteractive case.
9c524fcb 198
79ce172a 199** New scrolling commands `scroll-up-command' and `scroll-down-command'
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200(bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
201of buffer at first key-press (instead move to top/bottom of buffer)
7b05466f 202when a new variable `scroll-error-top-bottom' is non-nil.
79ce172a 203
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204** New scrolling commands `scroll-up-line' and `scroll-down-line'
205scroll a line instead of full screen.
206
a4b000fb 207** New property `scroll-command' should be set on a command's symbol to
b2957ea8 208define it as a scroll command affected by `scroll-preserve-screen-position'.
9013a7f8 209
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210+++
211** If you customize `scroll-conservatively' to a value greater than 100,
212Emacs will never recenter point in the window when it scrolls due to
213cursor motion commands or commands that move point (e.f., `M-g M-g').
214Previously, you needed to use `most-positive-fixnum' as the value of
215`scroll-conservatively' to achieve the same effect.
216
217---
218** ``Aggressive'' scrolling now honors the scroll margins.
219If you customize `scroll-up-aggressively' or
220`scroll-down-aggressively' and move point off the window, Emacs now
221scrolls the window so as to avoid positioning point inside the scroll
222margin.
223
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224** Trash changes
225
226*** `delete-by-moving-to-trash' now only affects commands that specify
227trashing. This avoids inadvertently trashing temporary files.
228
229*** Calling `delete-file' or `delete-directory' with a prefix argument
230now forces true deletion, regardless of `delete-by-moving-to-trash'.
231
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232** New option `list-colors-sort' defines the color sort order
233for `list-colors-display'.
234
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235** An Emacs Lisp package manager is now included.
236This is a convenient way to download and install additional packages,
42d9cffa 237from a package repository at elpa.gnu.org.
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238
239*** `M-x list-packages' shows a list of packages, which can be
240selected for installation.
241
242*** New command `describe-package', bound to `C-h P'.
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243
244*** By default, all installed packages are loaded and activated
245automatically when Emacs starts up. To disable this, set
246`package-enable-at-startup' to nil. To change which packages are
247loaded, customize `package-load-list'.
248
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249** An Emacs Lisp testing tool is now included.
250Emacs Lisp developers can use this tool to write automated tests for
251their code. See the ERT info manual for details.
252
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253** Custom Themes
254
255*** `M-x customize-themes' lists Custom themes which can be enabled.
256
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257*** New option `custom-theme-load-path' is the load path for themes.
258Emacs no longer looks for custom themes in `load-path'. The default
259is to search in `custom-theme-directory', followed by a built-in theme
260directory named "themes/" in `data-directory'.
261
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262*** New option `custom-safe-themes' records known-safe theme files.
263If a theme is not in this list, Emacs queries before loading it, and
264offers to save the theme to `custom-safe-themes' automatically. By
265default, all themes included in Emacs are treated as safe.
278f6845 266
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267** The user option `remote-file-name-inhibit-cache' controls whether
268the remote file-name cache is used for read access.
269
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270** The standalone programs lib-src/digest-doc and sorted-doc have been
271replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
272
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273** The variable `focus-follows-mouse' now always defaults to nil.
274
0bfd685e 275\f
eb199145 276* Editing Changes in Emacs 24.1
b350bdf2 277
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278** Search changes
279
280+++
281*** C-y in Isearch is now bound to isearch-yank-kill, instead of
282isearch-yank-line.
283
284+++
285*** M-s C-e in Isearch is now bound to isearch-yank-line.
286
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287+++
288** There is a new command `count-words-region', which does what you expect.
289
67027b49 290** completion-at-point now handles tags and semantic completion.
a982c7ec 291
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292** The default value of `backup-by-copying-when-mismatch' is now t.
293
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294** The command `just-one-space' (C-SPC), if given a negative argument,
295also deletes newlines around point.
296
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297** Deletion changes
298
299*** New option `delete-active-region'.
300If non-nil, C-d, [delete], and DEL delete the region if it is active
301and no prefix argument is given. If set to `kill', these commands
302kill instead.
303
304*** New command `delete-forward-char', bound to C-d and [delete].
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305This is meant for interactive use, and obeys `delete-active-region'.
306The command `delete-char' does not obey `delete-active-region'.
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307
308*** `delete-backward-char' is now a Lisp function.
309Apart from obeying `delete-active-region', its behavior is unchanged.
310However, the byte compiler now warns if it is called from Lisp; you
311should use delete-char with a negative argument instead.
312
313*** The option `mouse-region-delete-keys' has been deleted.
314
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315** Selection changes.
316
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317The default handling of clipboard and primary selections was changed
318to conform with modern X applications. In short, most commands for
319killing and yanking text now use the clipboard, while mouse commands
320use the primary selection.
321
322In the following, we provide a list of these changes, followed by a
323list of steps to get the old behavior back if you prefer that.
324
325*** `mouse-drag-copy-region' now defaults to nil.
326*** `select-active-regions' now defaults to t.
327Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
328the kill-ring. The selected text is put in the primary selection, if
329the system possesses a separate primary selection facility (e.g. X).
330
331**** `select-active-regions' also accepts a new value, `only'.
332This means to only set the primary selection for temporarily active
333regions (usually made by mouse-dragging or shift-selection);
334"ordinary" active regions, such as those made with C-SPC followed by
335point motion, do not alter the primary selection.
336
337*** mouse-2 is now bound to `mouse-yank-primary'.
338This pastes from the primary selection, ignoring the kill-ring.
339Previously, mouse-2 was bound to `mouse-yank-at-click'.
340
341*** `x-select-enable-clipboard' now defaults to t on all platforms.
342*** `x-select-enable-primary' now defaults to nil.
343Thus, commands that kill text or copy it to the kill-ring (such as
344M-w, C-w, and C-k) also use the clipboard---not the primary selection.
345
346**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
347exactly equivalent to, respectively M-w, C-w, and C-y.
348
349**** Note that on MS-Windows, `x-select-enable-clipboard' was already
350non-nil by default, as Windows does not support the primary selection
351between applications.
352
353*** To return to the previous behavior, do the following:
354
104c2fe9 355**** Change `select-active-regions' to nil.
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356**** Change `mouse-drag-copy-region' to t.
357**** Change `x-select-enable-primary' to t (on X only).
358**** Change `x-select-enable-clipboard' to nil.
359**** Bind `mouse-yank-at-click' to mouse-2.
f9d71b42 360
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361*** Support for X cut buffers has been removed.
362
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363** New command `rectangle-number-lines', bound to `C-x r N', numbers
364the lines in the current rectangle. With an prefix argument, this
365prompts for a number to count from and for a format string.
366
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367** The command shell prompts for the shell path name, when the default
368directory is a remote file name and neither environment variable
369$ESHELL nor variable `explicit-shell-file-name' is set.
370
9bae34bf 371\f
eb199145 372* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 373
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374** comint and modes derived from it use the generic completion code.
375
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376** The compile.el mode can be used without font-lock-mode.
377`compilation-parse-errors-function' is now obsolete.
378
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379** The Landmark game is now invoked with `landmark', not `lm'.
380
04380ff1 381** Prolog mode has been completely revamped, with lots of additional
86485587 382functionality such as more intelligent indentation, electricity, support for
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383more variants, including Mercury, and a lot more.
384
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385** shell-mode can track your cwd by reading it from your prompt.
386Just set shell-dir-cookie-re to an appropriate regexp.
387
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388** Modula-2 mode provides auto-indentation.
389
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390** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
391
360ac530 392** FIXME: xdg-open for browse-url and reportbug, 2010/08.
0ac3effe 393
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394** Archive Mode has basic support to browse 7z archives.
395
876d1684 396** browse-url has gotten a new variable that is used for mailto: URLs,
0a19a6f8 397`browse-url-mailto-function', which defaults to `browse-url-mail'.
876d1684 398
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399** `url-queue-retrieve' downloads web pages asynchronously, but allow
400controlling the degree of parallelism.
401
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402** Directory local variables can apply to file-less buffers, in certain modes
403(eg dired, vc-dir, log-edit). For example, adding
404"(diff-mode . ((mode . whitespace)))" to your .dir-locals.el file,
405will turn on `whitespace-mode' for *vc-diff* buffers. Modes should
406call `hack-dir-local-variables-non-file-buffer' to support this.
407
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408+++
409** You can prevent directory local variables from applying to subdirectories.
410Add an element (subdirs . nil) to the alist portion of any variables
411settings to indicate said section should not be applied to subdirectories.
412
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413** ERC changes
414
415*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
416If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
417successful NickServ identification, or after `erc-autojoin-delay'
418seconds. The default value, 'ident, means to autojoin immediately
419after connecting.
420
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421*** New variable `erc-coding-system-precedence': If we use `undecided'
422as the server coding system, this variable will then be consulted.
423The default is to decode strings that can be decoded as utf-8 as
424utf-8, and do the normal `undecided' decoding for the rest.
425
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426** Eshell changes
427
428*** The default value of eshell-directory-name is a directory named
429"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
430exists, that is used instead.
431
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432** In ido-mode, C-v is no longer bound to ido-toggle-vc.
433The reason is that this interferes with cua-mode.
434
c1e25821 435** partial-completion-mode is now obsolete.
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436You can get a comparable behavior with:
437(setq completion-styles '(partial-completion initials))
438(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 439
18c812bd 440** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
b2957ea8 441
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442** server can listen on a specific port using the server-port option.
443
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444** Calendar, Diary, and Appt
445
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446*** New function `diary-hebrew-birthday'.
447
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448---
449*** The obsolete (since Emacs 22.1) method of enabling the appt package
450by adding appt-make-list to diary-hook has been removed. Use appt-activate.
451
452---
453*** Some appt variables (obsolete since Emacs 22.1) have been removed:
454appt-issue-message (use the function appt-activate)
455appt-visible/appt-msg-window (use the variable appt-display-format)
456
457---
458*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
459view-diary-entries, list-diary-entries, show-all-diary-entries
460
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461** Customize
462
463*** Customize buffers now contain a search field.
464The search is performed using `customize-apropos'.
42d9cffa 465To turn off the search field, set custom-search-field to nil.
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466
467*** Custom options now start out hidden if at their default values.
468Use the arrow to the left of the option name to toggle visibility.
469
470*** custom-buffer-sort-alphabetically now defaults to t.
471
472*** The color widget now has a "Choose" button, which allows you to
473choose a color via list-colors-display.
474
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475** Dired-x
476
477*** dired-jump and dired-jump-other-window called with a prefix argument
478read a file name from the minibuffer instead of using buffer-file-name.
479
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480+++
481*** The `dired local variables' feature provided by Dired-x is obsolete.
482The standard directory local variables feature replaces it.
8117868f 483
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484** SQL Mode enhancements.
485
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486*** `sql-dialect' is a synonym for `sql-product'.
487
74790210 488*** Added ability to login with a port on MySQL and Postgres.
7492acc9 489The custom variable `sql-port' can be specified for connection to
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490MySQL or Postgres servers. By default, the port is not listed in
491either login parameter, but will be added to the command line if set
492to a non-zero value.
7492acc9 493
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494*** Dynamic selection of product in an SQL interactive session.
495If you use `sql-product-interactive' to start an SQL interactive
496session it uses the current value of `sql-product'. Preceding the
497invocation with C-u will force it to ask for the product before
498creating the session.
499
500*** Renaming a SQL interactive buffer when it is created.
501Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
502`sql-mysql', etc.) with C-u will force a new interactive session to be
503started and will prompt for the new name. This will reduce the need
504for `sql-rename-buffer' is most common use cases.
505
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506*** Command continuation prompts in SQL interactive mode are suppressed.
507Multiple line commands in SQL interactive mode, generate command
508continuation prompts which needlessly confuse the output. These
509prompts are now filtered out from the output. This change impacts
510multiple line SQL statements entered with C-j between each line,
511statements yanked into the buffer and statements sent with
512`sql-send-*' functions.
513
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514*** Custom variables control prompting for login parameters.
515Each supported product has a custom variable `sql-*-login-params'
516which is a list of the parameters to be prompted for before a
517connection is established.
518
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519The lists consist of the following five tokens: `user', `password',
520`database', `server', and `port'. The order in which they appear is
521the order in which they are prompted. The tokens symbols can be
522replaced by a sublist starting with the token and followed by a plist
523which control the prompting for values. The tokens `user',
524`database', and `server' each can take a property of :default which
525specifies the value to be used if no value is entered. The
526`database', `server', and `port' tokens handle the :completion
527property which restricts the entry to either one of the values in the
528list or to one of the values returned by the function provided as the
529property value. The `database' and `server' tokens also accept the
530:file property whose value is a regexp to identify useful file names.
531
532 (user :default DEF)
533 (database :default DEF
534 :file FILEPAT
535 :completion COMPLETE)
536 (server :default DEF
537 :file FILEPAT
538 :completion COMPLETE)
539
540The FILEPAT when :file is specified is a regexp that will match valid
541file names (without the directory portion). Generally these strings
542will be of the form ".+\.SUF" where SUF is the desired file suffix.
543
544When :completion is specified, the COMPLETE corresponds to the
545PREDICATE argument to the `completing-read' function (a list of
546possible values or a function returning such a list).
5474c40f 547
30c4d8dc
MM
548*** Added `sql-connection-alist' to record login parameter values.
549An alist for recording different username, database and server
550values. If there are multiple databases that you connect to the
551parameters needed can be stored in this alist.
552
553For example, the following might be set in the user's init.el:
554
555 (setq sql-connection-alist
556 '((dev (sql-product 'sqlite)
557 (sql-database "/home/mmaug/dev.db"))
558 (prd (sql-product 'oracle)
559 (sql-user "mmaug")
560 (sql-database "iprd2a"))))
561
562This defines two connections named "dev" and "prd".
563
564*** Added `sql-connect' to use predefined connections.
565Sets the login parameters based on the values in the
566`sql-connection-alist' and start a SQL interactive session. Any
567values specified in the connection will not be prompted for.
568
569In the example above, if the user were to invoke M-x sql-connect, they
570would be prompted for the connection. The user can respond with
571either "dev" or "prd". The "dev" connection would connect to the
572SQLite database without prompting; the "prd" connection would prompt
573for the users password and then connect to the Oracle database.
574
d26b0ea9 575**** Added SQL->Start... submenu when connections are defined.
b2957ea8 576When connections have been defined, there is a submenu available that
d26b0ea9
MM
577allows the user to select one to start a SQLi session. The "Start
578SQLi Session" item moves to the "Start..." submenu when cnnections
579have been defined.
580
581**** Added "Save Connection" menu item in SQLi buffers.
582When a SQLi session is not started by a connection then
583`sql-save-connection' will gather the login params specified for the
584session and save them as a new connection.
585
74790210
MM
586*** List database objects and details.
587Once a SQL interactive session has been started, you can get a list of
588the objects in the database and see details of those objects. The
589objects shown and the details available are product specific.
590
591**** List all objects.
592Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
593objects" will list all the objects in the database. At a minimum it
86485587 594lists the tables and views in the database. Preceding the command by
74790210
MM
595universal argument may provide additional details or extend the
596listing to include other schemas objects. The list will appear in a
597separate window in view-mode.
598
599**** List Table details.
600Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
601details" will ask for the name of a database table or view and display
86485587 602the list of columns in the relation. Preceding the command with the
74790210
MM
603universal argument may provide additional details about each column.
604The list will appear in a separate window in view-mode.
605
7492acc9
MM
606*** Added option `sql-send-terminator'.
607When set makes sure that each command sent with `sql-send-*' commands
608are properly terminated and submitted to the SQL processor.
609
610*** Added option `sql-oracle-scan-on'.
611When set commands sent to Oracle's SQL*Plus are scanned for strings
30c4d8dc
MM
612starting with an ampersand and the user is asked for replacement text.
613In general, the SQL*Plus option SCAN should always be set OFF under
614SQL interactive mode and this option used in its place.
7492acc9
MM
615
616*** SQL interactive mode will replace tabs with spaces.
86485587 617This prevents the command interpreter for MySQL and Postgres from
7492acc9
MM
618listing object name completions when being sent text via
619`sql-send-*' functions.
620
621*** An API for manipulating SQL product definitions has been added.
622
723ee192
SM
623** sregex.el is now obsolete, since rx.el is a strict superset.
624
6ca94a0b 625** s-region.el and pc-select are now declared obsolete,
86485587 626superseded by shift-select-mode enabled by default in 23.1.
6ca94a0b 627** pc-mode.el is also declared obsolete.
691cf4a0
NR
628** gdb-mi
629
630*** GDB User Interface migrated to GDB Machine Interface and now
631supports multithread non-stop debugging and debugging of several
632threads simultaneously.
633
37221432
MA
634** D-Bus
635
636*** It is possible now, to access alternative buses than the default
637system or session bus.
638
3c3d4f5b
MA
639*** dbus-register-{service,method,property}
640The -method and -property functions do not automatically register
641names anymore.
642
643The new function dbus-register-service registers a service known name
644on a D-Bus without simultaneously registering a property or a method.
412b9ee5 645
459bba37
MA
646** Tramp
647
a808d31f
MA
648*** There exists a new inline access method "ksu" (kerberized su).
649
459bba37 650*** The following access methods are discontinued: "ssh1_old",
ea843702 651"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
459bba37 652
0c32ce32
CY
653** VC and related modes
654
655*** Support for pulling on distributed version control systems.
659114fd 656The vc-pull command runs a "pull" operation, if it is supported.
0c32ce32 657This updates the current branch from upstream. A prefix argument
659114fd 658means to prompt the user for specifics, e.g. a pull location.
0c32ce32 659
7d93eca9 660**** `vc-update' is now an alias for `vc-pull'.
0c32ce32 661
659114fd 662**** Currently supported by Bzr, Git, and Mercurial.
0c32ce32
CY
663
664*** Support for merging on distributed version control systems.
665The vc-merge command now runs a "merge" operation, if it is supported.
659114fd
CY
666This merges another branch into the current one. This command prompts
667the user for specifics, e.g. a merge source.
0c32ce32 668
33f6cf7b 669**** Currently supported for Bzr, Git, and Mercurial.
0c32ce32 670
d4eb88c7
CY
671*** Log entries in some Log View buffers can be toggled to display a
672longer description by typing RET (log-view-toggle-entry-display).
673In the Log View buffers made by `C-x v L' (vc-print-root-log), you can
674use this to display the full log entry for the revision at point.
675
33f6cf7b 676**** Currently supported for Bzr, Git, and Mercurial.
d4eb88c7
CY
677
678**** Packages using Log View mode can enable this functionality by
679binding `log-view-expanded-log-entry-function' to a suitable function.
680
1c6c854e
CS
681*** New command `vc-ediff' allows visual comparison of two revisions
682of a file similar to `vc-diff', but using ediff backend.
683
0fe719e6
GM
684** Miscellaneous
685
686---
687*** `copyright-fix-years' can optionally convert consecutive years to ranges.
688
5b3e6db8
GM
689*** New command `nato-region' converts text to NATO phonetic alphabet.
690
0f0c1f27
EZ
691*** The new command `info-display-manual' will display an Info manual
692specified by its name. If that manual is already visited in some Info
693buffer within the current session, the command will display that
694buffer. Otherwise, it will load the manual and display it. This is
695handy if you have many manuals in many Info buffers, and don't
696remember the name of the buffer visiting the manual you want to
697consult.
698
eb199145
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699\f
700* New Modes and Packages in Emacs 24.1
d445b3f8 701
7100ff98
SM
702** New global minor modes electric-pair-mode, electric-indent-mode,
703and electric-layout-mode.
3b843809 704
a83ec3c9
CY
705** tabulated-list.el provides a generic major mode for tabulated data,
706from which other modes can be derived.
707
d02c9bcd
SM
708** pcase.el provides the ML-style pattern matching macro `pcase'.
709
7725ebb7
MA
710** secrets.el is an implementation of the Secret Service API, an
711interface to password managers like GNOME Keyring or KDE Wallet. The
065f2743
MA
712Secret Service API requires D-Bus for communication. The command
713`secrets-show-secrets' offers a buffer with a visualization of the
714secrets.
7725ebb7 715
f9e78150
MA
716** notifications.el provides an implementation of the Desktop
717Notifications API. It requires D-Bus for communication.
718
12fe5bcc
MA
719** soap-client.el supports access to SOAP web services from Emacs.
720soap-inspect.el is an interactive inspector for SOAP WSDL structures.
721
ad7d6ecb
GM
722** xmodmap-generic-mode for xmodmap files.
723
eb199145
GM
724\f
725* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 726
fa6996bc
EZ
727---
728** `char-direction-table' and the associated function `char-direction'
729were deleted. They were buggy and inferior to the new support of
730bidirectional editing introduced in Emacs 24. If you need the
731bidirectional properties of a character, use `get-char-code-property'
732with the last argument `bidi-class'.
733
470d996d
TV
734** `copy-directory' now copies the source directory as a subdirectory
735of the target directory, if the latter is an existing directory. The
736new optional arg COPY-CONTENTS, if non-nil, makes the function copy
737the contents directly into a pre-existing target directory.
738
25ca2e61
CY
739** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
740passes it to the mail user agent function. This argument specifies an
741action for returning to the caller after finishing with the mail.
742This is currently used by Rmail to delete a mail window.
743
9173a8fb
CY
744** For mouse click input events in the text area, the Y pixel
745coordinate in the POSITION list now counts from the top of the text
746area, excluding any header line. Previously, it counted from the top
747of the header line.
748
c4d17d50
SM
749** Remove obsolete name `e' (use `float-e' instead).
750
288cf4e9
SM
751** A backquote not followed by a space is now always treated as new-style.
752
fd5c9dfa 753** Test for special mode-class was moved from view-file to view-buffer.
288cf4e9
SM
754FIXME: This only says what was changed, but not what are the
755programmer-visible consequences.
fd5c9dfa 756
3b7e1d5f 757** Passing a nil argument to a minor mode function now turns the mode
0a19a6f8 758ON unconditionally.
6431f2e6
CY
759
760** During startup, Emacs no longer adds entries for `menu-bar-lines'
0a19a6f8
JB
761and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
762With these alist entries omitted, `make-frame' checks the value of the
763variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
764a menu-bar or tool-bar, respectively. If the alist entries are added,
765they override the value of `menu-bar-mode'/`tool-bar-mode'.
6431f2e6 766
fe0aa820
CY
767** Regions created by mouse dragging are now normal active regions,
768similar to the ones created by shift-selection. In previous Emacs
769versions, these regions were delineated by `mouse-drag-overlay', which
770has now been removed.
d6d8ee7a 771
4583e796
GM
772** cl.el no longer provides `cl-19'.
773
3226d6ca
GM
774** The following functions and aliases, obsolete since at least Emacs 21.1,
775have been removed:
776comint-kill-output, decompose-composite-char, outline-visible,
777internal-find-face, internal-get-face, frame-update-faces,
778frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
779x-make-font-bold, x-make-font-demibold, x-make-font-unbold
780x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
781x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
922ad43e
GM
782iswitchb-default-keybindings, char-bytes, isearch-return-char,
783make-local-hook
3226d6ca
GM
784
785** The following variables and aliases, obsolete since at least Emacs 21.1,
786have been removed:
6aecca99
GM
787checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
788font-lock-defaults-alist
3226d6ca 789
7b0e3048
GM
790** The following files, obsolete since at least Emacs 21.1, have been removed:
791sc.el, x-menu.el, rnews.el, rnewspost.el
792
33658d4e
CY
793** FIXME finder-inf.el changes.
794
eb199145
GM
795\f
796* Lisp changes in Emacs 24.1
9097e8af 797
f042970d 798** `glyphless-char-display' can now distinguish between graphical and
16a43933
CY
799text terminal display, via a char-table entry that is a cons cell.
800
da91b5f2
CY
801** `open-network-stream' can now be used to open an encrypted stream.
802It now accepts an optional `:type' parameter for initiating a TLS
803connection, directly or via STARTTLS. To do STARTTLS, additional
804parameters (`:end-of-command', `:success', `:capabilities-command')
805must also be supplied.
806
03408648
SM
807** Code can now use lexical scoping by default instead of dynamic scoping.
808The `lexical-binding' variable lets code use lexical scoping for local
809variables. It is typically set via file-local variables, in which case it
810applies to all the code in that file.
811
812*** `eval' takes a new optional argument `lexical' to choose the new lexical
813binding instead of the old dynamic binding mode.
814
815*** Lexically scoped interpreted functions are represented with a new form
816of function value which looks like (closure ENV ARGS &rest BODY).
817
818*** New macro `letrec' to define recursive local functions.
819
820*** New function `special-variable-p' to check whether a variable is
821declared as dynamically bound.
822
f6d62986
SM
823** pre/post-command-hook are not reset to nil upon error.
824Instead, the offending function is removed.
825
826** New low-level function run-hook-wrapped.
827
7deebf1b
LMI
828** `server-eval-at' is provided to allow evaluating forms on different
829Emacs server instances.
830
831** `call-process' allows a `(:file "file")' spec to redirect STDOUT to
832a file.
833
53cfe624 834** byte-compile-disable-print-circle is obsolete.
78f64af0 835** deferred-action-list and deferred-action-function are obsolete.
e7f7fbaa
SM
836** Removed the stack-trace-on-error variable.
837Also the debugger can now "continue" from an error, which means it will jump
838to the error handler as if the debugger had not been invoked instead of
839jumping all the way to the top-level.
840
3ef01959
CY
841** New function `read-char-choice' reads a restricted set of characters,
842discarding any inputs not inside the set.
843
2e288d54
JB
844** `image-library-alist' is renamed to `dynamic-library-alist'.
845The variable is now used to load all kind of supported dynamic libraries,
846not just image libraries. The previous name is still available as an
847obsolete alias.
848
cf38dd42
SM
849** New variable syntax-propertize-function to set syntax-table properties.
850Replaces font-lock-syntactic-keywords which are now obsolete.
851This allows syntax-table properties to be set independently from font-lock:
852just call syntax-propertize to make sure the text is propertized.
853Together with this new variable come a new hook
854syntax-propertize-extend-region-functions, as well as two helper functions:
855syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
856as-is; and syntax-propertize-rules which provides a new way to specify
857syntactic rules.
858
a2e5caf7
SM
859** New hook post-self-insert-hook run at the end of self-insert-command.
860
7cf78aac 861+++
c5683ceb 862** Syntax tables support a new "comment style c" additionally to style b.
4e2db1fe 863** frame-local variables cannot be let-bound any more.
10dcc561 864** prog-mode is a new major-mode meant to be the parent of programming mode.
f44379e7
SM
865** define-minor-mode accepts a new keyword :variable.
866
b2957ea8 867** `delete-file' and `delete-directory' now accept optional arg TRASH.
f1a5d776
CY
868Trashing is performed if TRASH and `delete-by-moving-to-trash' are
869both non-nil. Interactively, TRASH defaults to t, unless a prefix
870argument is supplied (see Trash changes, above).
53967e09 871
8f92b8ad
SM
872** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
873
00278747
SM
874** New completion style `substring'.
875
9317e499
CY
876** `facemenu-read-color' is now an alias for `read-color'.
877The command `read-color' now requires a match for a color name or RGB
878triplet, instead of signalling an error if the user provides a invalid
879input.
880
4039c786
CY
881** Tool-bars can display separators.
882Tool-bar separators are handled like menu separators in menu-bar maps,
94975270 883i.e. via menu entries of the form `(menu-item "--")'.
9317e499 884
00fe2df1
JL
885** Image API
886
887*** When the image type is one of listed in `image-animated-types'
1546c559 888and the number of sub-images in the image is more than one, then the
00fe2df1
JL
889new function `create-animated-image' creates an animated image where
890sub-images are displayed successively with the duration defined by
891`image-animate-max-time' and the delay between sub-images defined
892by the Graphic Control Extension of the image.
893
1546c559
JL
894*** `image-extension-data' is renamed to `image-metadata'.
895
71c17aec
LMI
896** XML and HTML parsing
897
898*** If Emacs is compiled with libxml2 support (which is the default),
4b9832a6 899two new Emacs Lisp-level functions are defined:
84156e94
MA
900`libxml-parse-html-region' (which will parse "real world" HTML)
901and `libxml-parse-xml-region' (which parses XML). Both return an
4b9832a6
CY
902Emacs Lisp parse tree.
903
904FIXME: These should be front-ended by xml.el.
905
cf16af42 906** FIXME GnuTLS
71c17aec 907
a6020335
MH
908** Isearch
909
910*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
911
9326ba26
CY
912** Progress reporters can now "spin".
913The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
914now be nil, or omitted. This makes a "non-numeric" reporter. Each
915time you call `progress-reporter-update' on that progress reporter,
916with a nil or omitted VALUE argument, the reporter message is
917displayed with a "spinning bar".
918
3e214b50
JB
919** New variable `revert-buffer-in-progress-p' is true while a buffer is
920being reverted, even if the buffer has a local `revert-buffer-function'.
921
638f053a
JB
922** New variables `delayed-warnings-list' and `delayed-warnings-hook' allow
923deferring warnings until the main command loop is executed.
924
eb199145
GM
925\f
926* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 927
0a19a6f8 928** New configure.bat option --enable-checking builds Emacs with extra
04779484
JB
929runtime checks.
930
e3aef5c6 931** New configure.bat option --distfiles to specify files to be
0a19a6f8 932included in binary distribution.
e3aef5c6 933
0a19a6f8 934** New make target `dist' to create binary distribution for MS Windows.
e3aef5c6 935
05197f40 936\f
a933dad1 937----------------------------------------------------------------------
5b87ad55 938This file is part of GNU Emacs.
a933dad1 939
ab73e885 940GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 941it under the terms of the GNU General Public License as published by
ab73e885
GM
942the Free Software Foundation, either version 3 of the License, or
943(at your option) any later version.
5b87ad55
GM
944
945GNU Emacs is distributed in the hope that it will be useful,
946but WITHOUT ANY WARRANTY; without even the implied warranty of
947MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
948GNU General Public License for more details.
a933dad1 949
5b87ad55 950You should have received a copy of the GNU General Public License
ab73e885 951along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 952
05197f40 953\f
a933dad1
DL
954Local variables:
955mode: outline
956paragraph-separate: "[ \f]*$"
957end: