NEWS 98.1 KB
Newer Older
1
GNU Emacs NEWS -- history of user-visible changes.
2

Glenn Morris's avatar
Glenn Morris committed
3
Copyright (C) 2010-2012 Free Software Foundation, Inc.
4
See the end of the file for license conditions.
Dave Love's avatar
#  
Dave Love committed
5

6
Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
7 8
If possible, use M-x report-emacs-bug.

9
This file is about changes in Emacs version 24.
10

11 12
See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
and NEWS.1-17 for changes in older Emacs versions.
13 14 15

You can narrow news to a specific version by calling `view-emacs-news'
with a prefix argument or by typing C-u C-h C-n.
16

Glenn Morris's avatar
Glenn Morris committed
17 18 19 20 21 22
Temporary note:
+++ indicates that the appropriate manual has already been updated.
--- means no change in the manuals is called for.
When you add a new item, please add it without either +++ or ---
so we will look at it and add it to the manual.

23 24 25 26

* Installation Changes in Emacs 24.4
* Startup Changes in Emacs 24.4
* Changes in Emacs 24.4
27 28 29 30 31

+++
** `eval-defun' on an already defined defcustom calls the :set function,
if there is one.

32 33 34 35
** The option `set-mark-default-inactive' has been deleted.
This unfinished feature was introduced by accident in Emacs 23.1;
simply disabling Transient Mark mode does the same thing.

36
* Editing Changes in Emacs 24.4
37

38 39 40
** New commands `toggle-frame-maximized' and `cycle-frame-maximized',
bound to <f11> and S-<f11>, respectively.

41

42
* Changes in Specialized Modes and Packages in Emacs 24.4
43

44 45 46 47 48 49 50
** cl-lib

*** New macro cl-tagbody.

+++
*** letf is now just an alias for cl-letf.

51 52 53 54 55 56 57 58 59 60 61 62 63 64
** Calc

*** Calc by default now uses the Gregorian calendar for all dates, and
uses January 1, 1 AD as its day number 1.  Previously Calc used the
Julian calendar for dates before September 14, 1752, and it used
December 31, 1 BC as its day number 1; the new scheme is more
consistent with Calendar's calendrical system and day numbering.

*** The new variable `calc-gregorian-switch' lets you configure the
date when Calc switches from the Julian to the Gregorian calendar.
Nil, the default value, means to always use the Gregorian calendar.
The value (YEAR MONTH DAY) means to start using the Gregorian calendar
on the given date.

65 66 67 68 69 70 71 72 73 74 75
** ERC

*** New option `erc-accidental-paste-threshold-seconds'.
If set to a number, this can be used to avoid accidentally paste large
amounts of data into the ERC input.

** Icomplete is a bit more like IDO.
*** key bindings to navigate through and select the completions.
*** The icomplete-separator is customizable, and its default has changed.
*** Removed icomplete-show-key-bindings.

Bill Wohler's avatar
Bill Wohler committed
76 77 78
** MH-E has been updated to MH-E version 8.4.
See MH-E-NEWS for details.

79 80 81 82 83 84 85 86
---
** The unrmail command converts from BABYL to mboxrd rather than mboxo.
Customize `unrmail-mbox-format' to change this.

---
** Similarly, customize `rmail-mbox-format' to influence some minor aspects
of how Rmail displays non-MIME messages.

87 88 89
+++
** New function `ses-rename-cell' to give SES cells arbitrary names.

90 91 92 93 94 95 96 97 98
** trace-function was largely rewritten.
New features include:
- no prompting for the destination buffer, unless a prefix-arg was used.
- additionally to prompting for a destination buffer, when a prefix-arg is
  used, the user can enter a "context", i.e. Lisp expression whose value at the
  time the function is entered/exited will be printed along with the function
  name and arguments.  Useful to trace the value of (current-buffer) or
  (point) when the function is invoked.

99 100 101 102 103
** New command `delete-duplicate-lines' has two types of operation:
when its arg ADJACENT is non-nil (when called interactively with C-u C-u)
it works like the utility `uniq'.  Otherwise by default it deletes
duplicate lines everywhere in the region without regard to adjacency.

104 105 106 107 108 109
** Tramp
+++
*** New connection method "adb", which allows to access Android
devices by the Android Debug Bridge.  The variable `tramp-adb-sdk-dir'
must be set to the Android SDK installation directory.

110 111 112 113 114
** Woman

*** The commands `woman-default-faces' and `woman-monochrome-faces'
are obsolete.  Customize the `woman-* faces instead.

Chong Yidong's avatar
Chong Yidong committed
115 116 117 118
** Obsolete packages:

*** longlines.el is obsolete; use visual-line-mode instead.

Chong Yidong's avatar
Chong Yidong committed
119 120
*** terminal.el is obsolete; use term.el instead.

121

122
* New Modes and Packages in Emacs 24.4
123 124 125 126 127 128 129
** New nadvice.el package offering lighter-weight advice facilities.
It is layered as:
- add-function/remove-function which can be used to add/remove code on any
  function-carrying place, such as process-filters or `<foo>-function' hooks.
- advice-add/advice-remove to add/remove a piece of advice on a named function,
  much like `defadvice' does.

130
* Incompatible Lisp Changes in Emacs 24.4
131

132 133 134 135
** nil and "unbound" are indistinguishable in symbol-function.
`symbol-function' never signals `void-function' any more.
`fboundp' returns non-nil if the symbol was `fset' to nil.

136 137
** `defadvice' does not honor the `freeze' flag and cannot advise
special-forms any more.
138

139 140 141 142
** `dolist' in lexical-binding mode does not bind VAR in RESULT any more.
VAR was bound to nil which was not tremendously useful and just lead to
spurious warnings about an unused var.

143
* Lisp changes in Emacs 24.4
144

145 146 147
** Support for filesystem notifications.
Emacs now supports notifications of filesystem changes, such as
creation, modification, and deletion of files.  This requires the
148 149
'inotify' API on GNU/Linux systems.  On MS-Windows systems, this is
supported for Windows XP and newer versions.
150

151 152 153 154 155 156 157 158 159 160
** Face changes

*** The `face-spec-set' is now analogous to `setq' for face specs.
Its third arg now accepts values specifying exactly which face spec to
set (defface, custom, or user spec), and it directly sets the relevant
property using the supplied face spec.

*** Face specs set via Custom themes now replace the `defface' spec
rather than inheriting from it (as do face specs set via Customize).

161
** time-to-seconds is not obsolete any more.
162
** New function special-form-p.
163 164 165
** Docstrings can be made dynamic by adding a `dynamic-docstring-function'
text-property on the first char.

166 167 168
** The `defalias-fset-function' property lets you catch calls to defalias
and redirect them to your own function instead of `fset'.

169 170 171 172 173 174 175 176 177 178 179
** The 9th element returned by `file-attributes' is now unspecified.
Formerly, it was t if the file's gid would change if file were deleted
and recreated.  This value has been inaccurate for years on many
platforms, and nobody seems to have noticed or cared.

** The function `file-ownership-preserved-p' now has an optional
argument GROUP which causes it check for file group too.  This can be
used in place of the 9th element of `file-attributes'.

** New functions `group-gid' and `group-real-gid'.

180 181
* Changes in Emacs 24.4 on non-free operating systems

182 183 184 185 186
+++
** The "generate a backtrace on fatal error" feature now works on MS Windows.
The backtrace is written to the 'emacs_backtrace.txt' file in the
directory where Emacs was running.

Glenn Morris's avatar
Glenn Morris committed
187

188
* Installation Changes in Emacs 24.3
189

Glenn Morris's avatar
Glenn Morris committed
190 191 192 193 194 195 196 197 198
---
** The default toolkit has been changed to Gtk+ version 3.
If you don't pass --with-x-toolkit to configure or if you pass
--with-x-toolkit=gtk or --with-x-toolkit=yes, configure will try to build
with Gtk+ version 3, and if that fails, try Gtk+ version 2.
You can explicitly require a specific version by passing
--with-x-toolkit=gtk2 or --with-x-toolkit=gtk3 to configure.

---
Paul Eggert's avatar
Paul Eggert committed
199
** New configure option '--without-all' to disable additional features.
200 201
This disables most of the features that are normally enabled by default.

Glenn Morris's avatar
Glenn Morris committed
202
---
203 204 205
** New configure option '--enable-link-time-optimization' to utilize
an appropriate feature provided by GCC since version 4.5.0.

Glenn Morris's avatar
Glenn Morris committed
206
---
207 208 209 210
** New configure option '--enable-gcc-warnings', intended for developers.
If building with GCC, this enables compile-time checks that warn about
possibly-questionable C code.  On a recent GNU system there should be
no warnings; on older and on non-GNU systems the generated warnings
Paul Eggert's avatar
Paul Eggert committed
211
may be useful.
212

Glenn Morris's avatar
Glenn Morris committed
213
---
214
** The configure option '--enable-use-lisp-union-type' has been
Glenn Morris's avatar
Glenn Morris committed
215 216 217 218 219
renamed to '--enable-check-lisp-object-type', as the resulting
Lisp_Object type no longer uses a union to implement the compile time
check that this option enables.

---
220 221 222
** The configure option '--disable-maintainer-mode' has been removed,
as it was confusingly-named and rarely useful.

223 224 225 226 227
---
** You can use `NO_BIN_LINK=t make install' to prevent the installation
overwriting "emacs" in the installation bin/ directory with a link
to emacs-VERSION.

228
---
Glenn Morris's avatar
Glenn Morris committed
229 230 231 232 233
** The configure options `--program-prefix', `--program-suffix', and
`--program-transform-name' apply to more than just the installed
binaries.  Now they also affect the man pages, icons, and the
etc/emacs.desktop file; but not the info pages, since this would break
links between the various manuals.
234

235 236 237
---
** Emacs uses libtinfo in preference to libncurses, if available.

238 239 240 241 242
---
** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and
/usr/pkg/lib to the linker search path.  You must add them yourself if
you want them.

Glenn Morris's avatar
Glenn Morris committed
243 244 245 246 247
---
** The standalone scripts rcs-checkin and vcdiff have been removed
(from the bin and libexec directories, respectively).  The former is
no longer relevant, the latter is replaced by lisp (in vc-sccs.el).

Glenn Morris's avatar
Glenn Morris committed
248

249
* Startup Changes in Emacs 24.3
250

251
+++
252 253 254 255
** Emacs no longer searches for `leim-list.el' files beneath the standard
lisp/ directory.  There should not be any there anyway.  If you have
been adding them there, put them somewhere else, eg site-lisp.

Glenn Morris's avatar
Glenn Morris committed
256 257 258
---
** The `--no-site-lisp' command line option now works for Nextstep builds.

Glenn Morris's avatar
Glenn Morris committed
259

260
* Changes in Emacs 24.3
Glenn Morris's avatar
Glenn Morris committed
261

262
+++
Chong Yidong's avatar
Chong Yidong committed
263 264 265 266 267
** Most y-or-n prompts now allow you to scroll the selected window.
Typing C-v or M-v at a y-or-n prompt scrolls forward or backward
respectively, without exiting from the prompt.

** Mode line changes
Chong Yidong's avatar
Chong Yidong committed
268
---
Chong Yidong's avatar
Chong Yidong committed
269 270 271
*** New option `mode-line-default-help-echo' specifies the help text
(shown in a tooltip or in the echo area) for any part of the mode line
that does not have its own specialized help text.
272 273 274
+++
*** You can now click mouse-3 in the coding system indicator to invoke
`set-buffer-file-coding-system'.
Chong Yidong's avatar
Chong Yidong committed
275

276 277
** Help changes

278
+++
279 280 281 282 283 284
*** `C-h f' (describe-function) can now perform autoloading.
When this command is called for an autoloaded function whose docstring
contains a key substitution construct, that function's library is
automatically loaded, so that the documentation can be shown
correctly.  To disable this, set `help-enable-auto-load' to nil.

285
---
286 287 288 289
*** `C-h f' now reports previously-autoloaded functions as "autoloaded",
even after their associated libraries have been loaded (and the
autoloads have been redefined as functions).

290 291 292 293
** Minibuffer changes
---
*** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the
next and previous path separator, respectively.
294
+++
295 296 297
*** minibuffer-electric-default-mode can rewrite (default ...) to [...].
Just set minibuffer-eldef-shorten-default to t before enabling the mode.

Glenn Morris's avatar
Glenn Morris committed
298
+++
299 300 301
** ImageMagick support, if available, is automatically enabled.
It is no longer necessary to call `imagemagick-register-types'
explicitly to install ImageMagick image types; that function is called
302
automatically at startup, or when customizing an imagemagick- option.
303
+++
304
*** Setting `imagemagick-types-inhibit' to t now disables the use of
305 306
ImageMagick to view images.  You must call imagemagick-register-types
afterwards if you do not use customize to change this.
307
+++
308
*** The new variable `imagemagick-enabled-types' also affects which
309 310 311
ImageMagick types are treated as images.  The function
`imagemagick-filter-types' returns the list of types that will be
treated as images.
312
---
313 314
*** Images displayed via ImageMagick now support transparency and the
:background image spec property.
315

Chong Yidong's avatar
Chong Yidong committed
316
** Server and client changes
317
+++
Chong Yidong's avatar
Chong Yidong committed
318 319 320
*** emacsclient now obeys string values for `initial-buffer-choice',
if it is told to open a new frame without specifying any file to visit
or expression to evaluate.
321
---
Chong Yidong's avatar
Chong Yidong committed
322
*** New option `server-auth-key' specifies a shared server key.
Glenn Morris's avatar
Glenn Morris committed
323

324
+++
Chong Yidong's avatar
Chong Yidong committed
325 326 327
** In the Package Menu, newly-available packages are listed as "new",
and sorted above the other "available" packages by default.

Chong Yidong's avatar
Chong Yidong committed
328
+++
Chong Yidong's avatar
Chong Yidong committed
329 330 331
** `C-x C-q' is now bound to the new minor mode `read-only-mode'.
This minor mode replaces `toggle-read-only', which is now obsolete.

332
+++
Chong Yidong's avatar
Chong Yidong committed
333 334 335
** Emacs now generates backtraces on fatal errors.
On encountering a fatal error, Emacs now outputs a textual description
of the fatal signal, and a short backtrace on platforms like glibc
336
that support backtraces.
337

338
---
Chong Yidong's avatar
Chong Yidong committed
339 340
** If your Emacs was built from a bzr checkout, the new variable
`emacs-bzr-version' contains information about the bzr revision used.
341

342
+++
Chong Yidong's avatar
Chong Yidong committed
343 344 345
** New variable `create-lockfiles' specifies usage of lockfiles.
It defaults to t.  Changing it to nil inhibits the creation of lock
files (use this with caution).
346

347
+++
348
** Using "unibyte: t" in Lisp source files is obsolete.
Glenn Morris's avatar
Glenn Morris committed
349
Use "coding: raw-text" instead.
350

351 352 353 354
+++
** Setting `enable-remote-dir-locals' to non-nil allows directory
local variables on remote hosts.

Chong Yidong's avatar
Chong Yidong committed
355
---
Chong Yidong's avatar
Chong Yidong committed
356 357 358
** The entry for PCL-CVS has been removed from the Tools menu.
The PCL-CVS commands are still available via the keyboard.

Chong Yidong's avatar
Chong Yidong committed
359 360 361 362 363 364
** Internationalization changes
---
*** New language environment: Persian.
---
*** New input method `vietnamese-vni'.

Glenn Morris's avatar
Glenn Morris committed
365
** Nextstep (GNUstep / Mac OS X) port changes
366
---
Jan Djärv's avatar
Jan Djärv committed
367 368
*** Fullscreen and frame parameter fullscreen is supported.
---
369 370 371
*** A file dialog is used for open/save operations initiated from the
menu/toolbar.

Glenn Morris's avatar
Glenn Morris committed
372

373
* Editing Changes in Emacs 24.3
374

375
** Navigation command changes
376
+++
377
*** New binding `M-g c' for `goto-char'.
378
+++
379
*** New binding `M-g TAB' for `move-to-column'.
380
+++
381 382 383
*** `M-g TAB' (`move-to-column') prompts for a column number if called
interactively with no prefix arg.  Previously, it moved to column 1.

Chong Yidong's avatar
Chong Yidong committed
384
** Search and Replace changes
385
+++
Chong Yidong's avatar
Chong Yidong committed
386 387 388 389 390
*** Non-regexp Isearch now performs "lax" space matching.
Each sequence of spaces in the supplied search string may match any
sequence of one or more whitespace characters, as specified by the
variable `search-whitespace-regexp'.  (This variable is also used by a
similar existing feature for regexp Isearch).
391
+++
Chong Yidong's avatar
Chong Yidong committed
392 393
*** New Isearch command `M-s SPC' toggles lax space matching.
This applies to both ordinary and regexp Isearch.
394
+++
Chong Yidong's avatar
Chong Yidong committed
395 396 397
*** New option `replace-lax-whitespace'.
If non-nil, `query-replace' uses flexible whitespace matching too.
The default is nil.
398
+++
399 400 401 402
*** Global `M-s _' starts a symbol (identifier) incremental search,
and `M-s _' in Isearch toggles symbol search mode.
`M-s c' in Isearch toggles search case-sensitivity.

403 404 405 406 407 408 409 410 411 412 413 414 415 416
+++
** `C-x 8 RET' is now bound to `insert-char', which is now a command.
`ucs-insert' is now an obsolete alias for `insert-char'.

---
** The `z' key no longer has a binding in most special modes.
It used to be bound to `kill-this-buffer', but `z' is too easy to
accidentally type.

+++
** New option `delete-trailing-lines' specifies whether
M-x delete-trailing-whitespace should delete trailing lines at the end
of the buffer.  It defaults to t.

Chong Yidong's avatar
Chong Yidong committed
417 418 419 420 421 422 423
** Register changes
+++
*** `C-x r +' is now overloaded to invoke `append-to-register.
+++
*** New option `register-separator' specifies the register containing
the text to put between collected texts for use with M-x
append-to-register and M-x prepend-to-register.
424

425
+++
Chong Yidong's avatar
Chong Yidong committed
426
** `C-u M-=' now counts lines/words/characters in the entire buffer.
427

428
+++
429 430 431
** New command `C-x r M-w' (copy-rectangle-as-kill).
It copies the region-rectangle as the last rectangle kill.

432
+++
Chong Yidong's avatar
Chong Yidong committed
433 434 435
** New option `yank-handled-properties' allows processing of text
properties on yanked text, in more ways that are more general than
just removing them, as done by `yank-excluded-properties'.
436

Glenn Morris's avatar
Glenn Morris committed
437

438
* Changes in Specialized Modes and Packages in Emacs 24.3
439

Chong Yidong's avatar
Chong Yidong committed
440
** Apropos
441
---
Chong Yidong's avatar
Chong Yidong committed
442 443 444
*** The faces used by Apropos are now directly customizable.
These faces are named `apropos-symbol', `apropos-keybinding', and so on;
see the `apropos' Custom group for details.
445 446
---
*** The old options whose values specified faces to use were removed
Chong Yidong's avatar
Chong Yidong committed
447 448 449 450
(i.e. `apropos-symbol-face', `apropos-keybinding-face', etc.).

** Buffer Menu
This package has been rewritten to use Tabulated List mode.
451
---
Chong Yidong's avatar
Chong Yidong committed
452 453 454 455 456
*** Option `Buffer-menu-buffer+size-width' is now obsolete.
Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead.

** Calendar

Glenn Morris's avatar
Glenn Morris committed
457
+++
Chong Yidong's avatar
Chong Yidong committed
458 459 460
*** You can customize the header text that appears above each calendar month.
See the variable `calendar-month-header'.

461 462 463
+++
*** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'.

Glenn Morris's avatar
Glenn Morris committed
464
+++
Chong Yidong's avatar
Chong Yidong committed
465
*** The calendars produced by cal-html include holidays.
Glenn Morris's avatar
Glenn Morris committed
466
Customize `cal-html-holidays' to change this.
Julien Danjou's avatar
Julien Danjou committed
467

468
** CL
Chong Yidong's avatar
Chong Yidong committed
469

Glenn Morris's avatar
Glenn Morris committed
470
+++
471
*** CL's main entry is now (require 'cl-lib).
472
`cl-lib' is like the old `cl' except that it uses the namespace cleanly,
473 474
i.e. all its definitions have the "cl-" prefix (and internal definitions use
the "cl--" prefix).
475 476 477 478 479 480

If `cl' provided a feature under the name `foo', then `cl-lib' provides it
under the name `cl-foo' instead, with the exceptions of the few definitions
that had to use `foo*' to avoid conflicts with pre-existing Elisp entities,
which have not been renamed to `cl-foo*' but just `cl-foo'.

Glenn Morris's avatar
Glenn Morris committed
481 482
The old `cl' is now deprecated and is mainly just a bunch of aliases that
provide the old non-prefixed names.  Some exceptions are listed below.
483

484
+++
485 486
*** `cl-flet' is not like `flet' (which is deprecated).
Instead it obeys the behavior of Common-Lisp's `flet'.
Glenn Morris's avatar
Glenn Morris committed
487 488
In particular, in cl-flet function definitions are lexically scoped,
whereas in flet the scoping is dynamic.
489

490
+++
491 492 493 494 495
*** `cl-labels' is slightly different from `labels'.
The difference is that it relies on the `lexical-binding' machinery (as opposed
to the `lexical-let' machinery used previously) to capture definitions in
closures, so such closures will only work if `lexical-binding' is in use.

496
+++
Glenn Morris's avatar
Glenn Morris committed
497
*** `cl-letf' is not exactly like `letf'.
498 499
The only difference is in details that relate to some deprecated usage
of `symbol-function' in place forms.
Glenn Morris's avatar
Glenn Morris committed
500

Glenn Morris's avatar
Glenn Morris committed
501
+++
502 503 504 505
*** `progv' was rewritten to use the `let' machinery.
A side effect is that vars without corresponding value are bound to nil
rather than making them unbound.

506
+++
Glenn Morris's avatar
Glenn Morris committed
507 508 509
*** The following methods of extending `setf' are obsolete
(use features from gv.el instead):
`define-modify-macro' (use `gv-letplace')
Glenn Morris's avatar
Glenn Morris committed
510 511
`defsetf' (use `gv-define-simple-setter' or `gv-define-setter')
`define-setf-expander' (use `gv-define-setter' or `gv-define-expander')
Glenn Morris's avatar
Glenn Morris committed
512
`get-setf-method' no longer exists (see "Incompatible Lisp Changes")
Glenn Morris's avatar
Glenn Morris committed
513

514
+++
Glenn Morris's avatar
Glenn Morris committed
515
** New compilation option `compilation-always-kill'.
Chong Yidong's avatar
Chong Yidong committed
516 517

** Customize
518
---
Chong Yidong's avatar
Chong Yidong committed
519
*** `custom-reset-button-menu' now defaults to t.
520
---
Chong Yidong's avatar
Chong Yidong committed
521 522 523 524
*** Non-option variables are never matched in `customize-apropos' and
`customize-apropos-options' (i.e. the prefix argument does nothing for
these commands now).

525
---
Glenn Morris's avatar
Glenn Morris committed
526 527
** `desktop-path' no longer includes the "." directory.
Desktop files are now located in ~/.emacs.d by default.
Chong Yidong's avatar
Chong Yidong committed
528

Chong Yidong's avatar
Chong Yidong committed
529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560
** D-Bus

+++
*** New variables `dbus-compiled-version' and `dbus-runtime-version'.

+++
*** The D-Bus object manager interface is implemented.

+++
*** Variables of type :(u)int32 and :(u)int64 accept floating points,
if their value does not fit into Emacs's integer range.

+++
*** The function `dbus-call-method' works non-blocking now, it can be
interrupted by C-g.  `dbus-call-method-non-blocking' is obsolete.

+++
*** Signals can be sent also as unicast message.

+++
*** The argument list of `dbus-register-signal' has been extended,
according to the new match rule types of D-Bus.  See the manual for
details.

+++
*** `dbus-init-bus' supports private connections.

+++
*** There is a new function `dbus-setenv'.

** Diff mode

561
---
Chong Yidong's avatar
Chong Yidong committed
562 563
*** Changes are now highlighted using the same color scheme as in
modern VCSes.  Deletions are displayed in red (new faces
564
`diff-refine-removed' and `smerge-refined-removed', and new definition
Chong Yidong's avatar
Chong Yidong committed
565
of `diff-removed'), insertions in green (new faces `diff-refine-added'
566
and `smerge-refined-added', and new definition of `diff-added').
Chong Yidong's avatar
Chong Yidong committed
567

568
---
Chong Yidong's avatar
Chong Yidong committed
569 570 571 572
*** The variable `diff-use-changed-face' defines whether to use the
face `diff-changed', or `diff-removed' and `diff-added' to highlight
changes in context diffs.

573
+++
574
*** The new command `diff-delete-trailing-whitespace' removes trailing
575
whitespace introduced by a diff.
Chong Yidong's avatar
Chong Yidong committed
576 577

** Dired
578
+++
Chong Yidong's avatar
Chong Yidong committed
579 580 581
*** `dired-do-async-shell-command' executes each file sequentially
if the command ends in `;' (when operating on multiple files).
Otherwise, it executes the command on each file in parallel.
582
---
Chong Yidong's avatar
Chong Yidong committed
583 584 585
*** Typing M-n in the minibuffer of `dired-do-chmod', `dired-do-chgrp',
`dired-do-chown', `dired-do-touch' pulls the file attributes of the
file at point.
586
+++
Chong Yidong's avatar
Chong Yidong committed
587 588 589
*** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'),
`DEL' (`dired-unmark-backward'), `d' (`dired-flag-file-deletion')
mark/unmark/flag all files in the active region.
590
+++
Chong Yidong's avatar
Chong Yidong committed
591 592 593
*** The minibuffer default for `=' (`dired-diff) has changed.
It is now the backup file for the file at point, if one exists.
In Transient Mark mode the default is the file at the active mark.
594
+++
Chong Yidong's avatar
Chong Yidong committed
595 596 597
*** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers.
The global binding for `M-=', `count-words-region' is in effect.

598
---
Chong Yidong's avatar
Chong Yidong committed
599 600
** Ediff now uses the same color scheme as Diff mode.

Glenn Morris's avatar
Glenn Morris committed
601 602
** ERC

603 604 605
+++
*** New module "notifications", which can send a notification when you
receive a private message or your nickname is mentioned.
Glenn Morris's avatar
Glenn Morris committed
606

607
+++
Glenn Morris's avatar
Glenn Morris committed
608 609
*** ERC will look up server/channel names via auth-source and use any
channel keys found.
Chong Yidong's avatar
Chong Yidong committed
610

Glenn Morris's avatar
Glenn Morris committed
611 612 613
+++
*** New option `erc-lurker-hide-list', similar to `erc-hide-list', but
only applies to messages sent by lurkers.
614

Glenn Morris's avatar
Glenn Morris committed
615
+++
Chong Yidong's avatar
Chong Yidong committed
616
** Flymake uses fringe bitmaps to indicate errors and warnings.
617 618
See `flymake-fringe-indicator-position', `flymake-error-bitmap' and
`flymake-warning-bitmap'.
Chong Yidong's avatar
Chong Yidong committed
619

620
---
Glenn Morris's avatar
Glenn Morris committed
621
** Follow mode no longer works by using advice.
Chong Yidong's avatar
Chong Yidong committed
622 623
The option `follow-intercept-processes' has been removed.

Glenn Morris's avatar
Glenn Morris committed
624
---
Glenn Morris's avatar
Glenn Morris committed
625
** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings,
Glenn Morris's avatar
Glenn Morris committed
626
specifying URL types that should be converted to remote file names at
Chong Yidong's avatar
Chong Yidong committed
627 628
the FFAP prompt.  The default is now '("ftp").

629
---
Glenn Morris's avatar
Glenn Morris committed
630
** New Ibuffer `derived-mode' filter, bound to `/ M'.
Chong Yidong's avatar
Chong Yidong committed
631 632
The old binding for `/ M' (filter by used-mode) is now bound to `/ m'.

Chong Yidong's avatar
Chong Yidong committed
633
---
Glenn Morris's avatar
Glenn Morris committed
634
** `javascript-generic-mode' is now an obsolete alias for `js-mode'.
Chong Yidong's avatar
Chong Yidong committed
635

636
+++
Glenn Morris's avatar
Glenn Morris committed
637
** New option `mouse-avoidance-banish-position' specifies where the
638
`banish' mouse avoidance setting moves the mouse.
Chong Yidong's avatar
Chong Yidong committed
639 640 641 642 643 644

+++
** notifications.el supports now version 1.2 of the Notifications API.
The function `notifications-get-capabilities' returns the supported
server properties.

Glenn Morris's avatar
Glenn Morris committed
645
---
Chong Yidong's avatar
Chong Yidong committed
646 647 648
** In Perl mode, new option `perl-indent-parens-as-block' causes non-block
closing brackets to be aligned with the line of the opening bracket.

Glenn Morris's avatar
Glenn Morris committed
649
---
650
** In Proced mode, new command `proced-renice' renices marked processes.
651

Glenn Morris's avatar
Glenn Morris committed
652
---
Glenn Morris's avatar
Glenn Morris committed
653 654 655
** Python mode

A new version of python.el, which provides several new features, including:
656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698
per-buffer shells, better indentation, Python 3 support, and improved
shell-interaction compatible with iPython (and virtually any other
text based shell).

*** Some user options have been replaced/renamed:
Old defcustom:                | New defcustom:
python-indent                 | python-indent-offset
python-guess-indent           | python-indent-guess-indent-offset
python-pdbtrack-do-tracking-p | python-pdbtrack-activate
python-use-skeletons          | python-skeleton-autoinsert

*** Some user options have been removed:

**** `python-indent-string-contents': Strings are never indented.

**** `python-honour-comment-indentation':
Comments are never considered as indentation markers themselves.

**** `python-continuation-offset': Indentation is automatically
calculated in a pep8 compliant way depending on the context.

**** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist':
Have no direct mapping as the shell interaction is completely different.

**** `python-python-command', `python-jython-command':
Replaced by `python-shell-interpreter'.

**** `inferior-python-filter-regexp', `python-remove-cwd-from-path',
`python-pdbtrack-minor-mode-string', `python-source-modes':
No longer relevant.

*** Some commands have been replaced:
Old command               | New command
python-insert-class       | python-skeleton-class
python-insert-def         | python-skeleton-def
python-insert-for         | python-skeleton-for
python-insert-if          | python-skeleton-if
python-insert-try/except  | python-skeleton-try
python-insert-try/finally | python-skeleton-try
python-insert-while       | python-skeleton-while
python-find-function      | python-nav-jump-to-defun
python-next-statement     | python-nav-forward-sentence
python-previous-statement | python-nav-backward-sentence
699 700
python-beginning-of-defun-function  | python-nav-beginning-of-defun
python-end-of-defun-function        | python-nav-end-of-defun
701 702 703 704 705 706 707 708 709
python-send-buffer        | python-shell-send-buffer
python-send-defun         | python-shell-send-defun
python-send-region        | python-shell-send-region
python-send-region-and-go | Emulate with python-shell-send-region and
                            python-shell-switch-to-shell
python-send-string        | python-shell-send-string
python-switch-to-python   | python-shell-switch-to-shell
python-describe-symbol    | python-eldoc-at-point

Chong Yidong's avatar
Chong Yidong committed
710
---
711 712
** reStructuredText mode

Glenn Morris's avatar
Glenn Morris committed
713 714 715
*** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling,
fontification, comment handling, and customization have all been revised
and improved.
716

Glenn Morris's avatar
Glenn Morris committed
717
*** Support for `imenu' and `which-function-mode'.
718

Glenn Morris's avatar
Glenn Morris committed
719 720
*** The reStructuredText syntax is more closely covered.
Sphinx support has been improved.
721

722
*** `rst-insert-list' inserts new list or continues existing lists.
723

Glenn Morris's avatar
Glenn Morris committed
724
*** A negative prefix argument always works for `rst-adjust'.
725

Glenn Morris's avatar
Glenn Morris committed
726
*** The window configuration is reset after displaying a TOC.
727

Glenn Morris's avatar
Glenn Morris committed
728
*** The constant `rst-version' describes the rst.el package version.
729

Chong Yidong's avatar
Chong Yidong committed
730
---
Glenn Morris's avatar
Glenn Morris committed
731
** Shell Script mode
732

Chong Yidong's avatar
Chong Yidong committed
733
*** Pairing of parens/quotes uses electric-pair-mode instead of skeleton-pair.
734

Chong Yidong's avatar
Chong Yidong committed
735
*** `sh-electric-here-document-mode' now controls auto-insertion of here-docs.
Chong Yidong's avatar
Chong Yidong committed
736

Chong Yidong's avatar
Chong Yidong committed
737
*** `sh-use-smie' lets you choose a new indentation and navigation code.
Chong Yidong's avatar
Chong Yidong committed
738

739
+++
Glenn Morris's avatar
Glenn Morris committed
740
** New option `async-shell-command-buffer' specifies the buffer to use
741
for a new asynchronous `shell-command' when the default output buffer
Glenn Morris's avatar
Glenn Morris committed
742
`*Async Shell Command*' is already in use.
743

Chong Yidong's avatar
Chong Yidong committed
744
---
Glenn Morris's avatar
Glenn Morris committed
745
** SQL mode has a new option `sql-db2-escape-newlines'.
Chong Yidong's avatar
Chong Yidong committed
746 747 748
If non-nil, newlines sent to the command interpreter will be escaped
by a backslash.  The default does not escape the newlines and assumes
that the sql statement will be terminated by a semicolon.
749

Chong Yidong's avatar
Chong Yidong committed
750
** Tabulated List and packages derived from it
751
+++
Chong Yidong's avatar
Chong Yidong committed
752 753
*** New command `tabulated-list-sort', bound to `S', sorts the column
at point, or the Nth column if a numeric prefix argument is given.
754

Chong Yidong's avatar
Chong Yidong committed
755
** Term
756
+++
Glenn Morris's avatar
Glenn Morris committed
757
*** The variables `term-default-fg-color' and `term-default-bg-color' are
758
now deprecated in favor of the customizable face `term'.
Glenn Morris's avatar
Glenn Morris committed
759
+++
Glenn Morris's avatar
Glenn Morris committed
760 761 762
*** You can customize how to display ANSI terminal colors and styles
by customizing the corresponding `term-color-<COLOR>',
`term-color-underline' and `term-color-bold' faces.
763

Michael Albinus's avatar
Michael Albinus committed
764 765
** Tramp
+++
Glenn Morris's avatar
Glenn Morris committed
766 767
*** The syntax has been extended in order to allow ad-hoc proxy definitions.
See the manual for details.
Michael Albinus's avatar
Michael Albinus committed
768 769 770
+++
*** Remote processes are now supported also on remote Windows host.

771
** URL
Chong Yidong's avatar
Chong Yidong committed
772
+++
773 774 775 776 777
*** Structs made by `url-generic-parse-url' have nil `attributes' slot.
Previously, this slot stored semicolon-separated attribute-value pairs
appended to some imap URLs, but this is not compatible with RFC 3986.
So now the `filename' slot stores the entire path and query components
and the `attributes' slot is always nil.
778
+++
779 780 781 782
*** New function `url-encode-url' for encoding a URI string.
The `url-retrieve' function now uses this to encode its URL argument,
in case that is not properly encoded.

783
---
Chong Yidong's avatar
Chong Yidong committed
784 785 786 787 788 789 790 791 792 793
** VHDL mode

*** The free software compiler GHDL is supported (and now the default).

*** Support for the VHDL-AMS packages has been added/updated.

*** Updated to the 2002 revision of the VHDL standard.

*** Accepts \r and \f as whitespace.

794
+++
Glenn Morris's avatar
Glenn Morris committed
795
** `which-func-modes' now defaults to t, so Which Function mode, when
796
enabled, applies to all applicable major modes.
Chong Yidong's avatar
Chong Yidong committed
797

798 799 800
---
** winner-mode-hook now runs when the mode is disabled, as well as when it is
enabled.
Chong Yidong's avatar
Chong Yidong committed
801

802
+++
Stefan Monnier's avatar
Stefan Monnier committed
803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825
** Hooks renamed to avoid obsolete "-hooks" suffix:
*** semantic-lex-reset-hooks -> semantic-lex-reset-functions
*** semantic-change-hooks -> semantic-change-functions
*** semantic-edits-new-change-hooks -> semantic-edits-new-change-functions
*** semantic-edits-delete-change-hooks -> semantic-edits-delete-change-functions
*** semantic-edits-reparse-change-hooks -> semantic-edits-reparse-change-functions
*** semanticdb-save-database-hooks -> semanticdb-save-database-functions
*** c-prepare-bug-report-hooks -> c-prepare-bug-report-hook
*** rcirc-sentinel-hooks -> rcirc-sentinel-functions
*** rcirc-receive-message-hooks -> rcirc-receive-message-functions
*** rcirc-activity-hooks -> rcirc-activity-functions
*** rcirc-print-hooks -> rcirc-print-functions
*** dbus-event-error-hooks -> dbus-event-error-functions
*** eieio-pre-method-execution-hooks -> eieio-pre-method-execution-functions
*** checkdoc-style-hooks -> checkdoc-style-functions
*** checkdoc-comment-style-hooks -> checkdoc-comment-style-functions
*** archive-extract-hooks -> archive-extract-hook
*** filesets-cache-fill-content-hooks -> filesets-cache-fill-content-hook
*** hfy-post-html-hooks -> hfy-post-html-hook
*** nndiary-request-create-group-hooks -> nndiary-request-create-group-functions
*** nndiary-request-update-info-hooks -> nndiary-request-update-info-functions
*** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions
*** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions
Chong Yidong's avatar
Chong Yidong committed
826

Glenn Morris's avatar
Glenn Morris committed
827
** Obsolete packages:
828
+++
829 830 831 832
*** assoc.el
In most cases, assoc+member+push+delq work just as well.
And in any case it's just a terrible package: ugly semantics, terrible
inefficiency, and not namespace-clean.
833
---
834
*** bruce.el
Glenn Morris's avatar
Glenn Morris committed
835 836
+++
*** cust-print.el
837
---
Glenn Morris's avatar
Glenn Morris committed
838
*** ledit.el
839
---
Glenn Morris's avatar
Glenn Morris committed
840
*** mailpost.el
841
+++
842
*** mouse-sel.el
843
---
844
*** patcomp.el
845

Glenn Morris's avatar
Glenn Morris committed
846

847
* Incompatible Lisp Changes in Emacs 24.3
848

849
+++
850 851
** set-buffer-multibyte now signals an error in narrowed buffers.

852
+++
853 854 855 856 857
** (random) by default now returns a different random sequence in
every Emacs run.  Use (random S), where S is a string, to set the
random seed to a value based on S, in order to get a repeatable
sequence in later calls.

858
---
859 860 861 862
** The function `x-select-font' can return a font spec, instead of a
font name as a string.  Whether it returns a font spec or a font name
depends on the graphical library.

863
+++
864 865 866 867
** If the NEWTEXT arg to `replace-match' contains a substring "\?",
that substring is inserted literally even if the LITERAL arg is
non-nil, instead of causing an error to be signaled.

868 869 870 871
+++
** `select-window' now always makes the window's buffer current.
It does so even if the window was selected before.

872 873 874 875 876 877
+++
** Docstrings starting with `*' no longer indicate user options.
Only variables defined using `defcustom' are considered user options.
The function `user-variable-p' is now an obsolete alias for
`custom-variable-p'.

878 879
+++
** The return values of `defalias', `defun' and `defmacro' have changed,
880 881 882
and are now undefined.  For backwards compatibility, `defun' and
`defmacro' currently return the name of the newly defined
function/macro, but this should not be relied upon.
883

884
---
885 886 887
** `face-spec-set' no longer sets frame-specific attributes when the
third argument is a frame (that usage was obsolete since Emacs 22.2).

888 889 890 891 892
+++
** The arguments of `dbus-register-signal' are no longer just strings,
but keywords or keyword-string pairs.  The old argument list will
still be supported for Emacs 24.x.

893 894 895 896 897 898 899
+++
** The CL package's `get-setf-method' function no longer exists.
Generalized variables are now part of core Emacs Lisp, and implemented
differently to the way cl.el used to do it.  It is not possible to
define a compatible replacement for `get-setf-method'.  See the file
gv.el for internal details of the new implementation.

900 901 902 903
** Spelling changes.
Some Lisp symbols have been renamed to avoid problems with spelling
that is incorrect or inconsistent with how Emacs normally spells a word.

904
---
905 906 907 908 909 910 911 912 913 914 915
*** Renamed functions

**** hangul-input-method-inactivate -> hangul-input-method-deactivate
**** inactivate-input-method -> deactivate-input-method
**** quail-inactivate -> quail-deactivate
**** robin-inactivate -> robin-deactivate
**** viper-inactivate-input-method -> viper-deactivate-input-method
**** viper-inactivate-input-method-action ->
     viper-deactivate-input-method-action
**** ucs-input-inactivate -> ucs-input-deactivate

916
---
917 918 919 920 921 922 923
*** Renamed hooks
The old hooks are still supported for backward compatibility, but they
are deprecated and will be removed eventually.
**** input-method-inactivate-hook -> input-method-deactivate-hook
**** robin-inactivate-hook -> robin-deactivate-hook
**** quail-inactivate-hook -> quail-deactivate-hook

924
---
925 926 927 928 929
*** Renamed Lisp variables
**** follow-deactive-menu -> follow-inactive-menu
**** inactivate-current-input-method-function ->
     deactivate-current-input-method-function

930
+++
Glenn Morris's avatar
Glenn Morris committed
931 932
** Some obsolete functions, variables, and faces have been removed:
*** `last-input-char', `last-command-char', `unread-command-char'
933 934
*** `facemenu-unlisted-faces'
*** `rmail-decode-mime-charset'
935 936 937
*** `iswitchb-read-buffer'
*** `sc-version', `sc-submit-bug-report'
*** `set-char-table-default'
Glenn Morris's avatar
Glenn Morris committed
938
*** `string-to-sequence' (use `string-to-list' or `string-to-vector')
939
*** `compile-internal'
Glenn Morris's avatar
Glenn Morris committed
940
*** `modeline'
941
*** `mode-line-inverse-video'
Glenn Morris's avatar
Glenn Morris committed
942
*** `follow-mode-off-hook'
943
*** `cvs-commit-buffer-require-final-newline'
Glenn Morris's avatar
Glenn Morris committed
944
(use `log-edit-require-final-newline' instead)
945 946 947 948 949 950
*** `cvs-changelog-full-paragraphs'
(use `log-edit-changelog-full-paragraphs' instead)
*** `cvs-diff-ignore-marks', `cvs-diff-buffer-name'
*** `vc-ignore-vc-files' (use `vc-handled-backends' instead)
*** `vc-master-templates' (use `vc-handled-backends' instead)
*** `vc-checkout-carefully'
951

Glenn Morris's avatar
Glenn Morris committed
952

953
* Lisp changes in Emacs 24.3
954

Stefan Monnier's avatar
Stefan Monnier committed
955
** New sampling-based Elisp profiler.
Glenn Morris's avatar
Glenn Morris committed
956 957
Try M-x profiler-start, do some work, and then call M-x profiler-report.
When finished, use M-x profiler-stop.  The sampling rate can be based on
Glenn Morris's avatar
Glenn Morris committed
958
CPU time or memory allocations.
959

960
+++
961
** CL-style generalized variables are now in core Elisp.
Chong Yidong's avatar
Chong Yidong committed
962
`setf' is autoloaded; `push' and `pop' accept generalized variables.
963 964
You can define your own generalized variables using `gv-define-simple-setter',
`gv-define-setter', etc.
Stefan Monnier's avatar