NEWS 142 KB
Newer Older
1
GNU Emacs NEWS -- history of user-visible changes.
2

3
Copyright (C) 2010-2014 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
Temporary note:
Glenn Morris's avatar
Glenn Morris committed
18 19
+++ indicates that all necessary documentation updates are complete.
    (This means all relevant manuals in doc/ AND lisp doc-strings.)
20
--- means no change in the manuals is needed.
Glenn Morris's avatar
Glenn Morris committed
21
When you add a new item, use the appropriate mark if you are sure it applies,
22
otherwise leave it unmarked.
Glenn Morris's avatar
Glenn Morris committed
23

24 25

* Installation Changes in Emacs 24.4
26

Chong Yidong's avatar
Chong Yidong committed
27
** Emacs can now be compiled with ACL support.
28 29
This happens by default if a suitable support library is found at
build time, like libacl on GNU/Linux.  To prevent this, use the
30
configure option `--disable-acl'.
31

Chong Yidong's avatar
Chong Yidong committed
32
** Emacs can now be compiled with file notification support.
33 34 35 36
This happens by default if a suitable system library is found at
build time.  To prevent this, use the configure option
`--with-file-notification-no'.  See below for file-notify features.
FIXME?  This feature is not available for the Nextstep port. (?)
37

Glenn Morris's avatar
Glenn Morris committed
38
---
Chong Yidong's avatar
Chong Yidong committed
39 40
** The configure option `--without-compress-info' has been generalized,
and renamed to `--without-compress-install'.  It now prevents compression
41 42
of _any_ files during installation.

Glenn Morris's avatar
Glenn Morris committed
43
---
Chong Yidong's avatar
Chong Yidong committed
44
** The configure option `--with-crt-dir' has been removed.
45
It is no longer needed, as the crt*.o files are no longer linked specially.
46

Glenn Morris's avatar
Glenn Morris committed
47
---
48 49 50
** Directories passed to configure option `--enable-locallisppath' are
no longer created during installation.

Chong Yidong's avatar
Chong Yidong committed
51 52 53 54
** Emacs can be compiled with zlib support.
If this library is present (which it normally is on most systems), the
function `zlib-decompress-region' becomes available, which can
decompress gzip- and zlib-format compressed data.
55

56
---
Glenn Morris's avatar
Glenn Morris committed
57 58
** Emacs for NS (Mac OS X, GNUstep) can be built with ImageMagick support.
This requires pkg-config to be available at configure time.
59

Glenn Morris's avatar
Glenn Morris committed
60

61
* Startup Changes in Emacs 24.4
Glenn Morris's avatar
Glenn Morris committed
62

63 64 65 66 67 68 69 70 71 72
+++
** When initializing `load-path', an empty element in the EMACSLOADPATH
environment variable (either leading, e.g., ":/foo"; trailing, e.g.,
"/foo:"; or embedded, e.g., "/foo::/bar") is replaced with the default
load-path (the one that would have been used if EMACSLOADPATH was unset).
This makes it easier to _extend_ the load-path via EMACSLOADPATH
(previously, EMACSLOADPATH had to specify the complete load-path,
including the defaults).  (In older versions of Emacs, an empty element
was replaced by ".", so use an explicit "." now if that is what you want.)

73 74
+++
** The -L option, which normally prepends its argument to load-path,
75 76
will instead append, if the argument begins with `:' (or `;' on MS Windows;
i.e., `path-separator').
77

78 79 80 81 82 83
+++
** If you use either site-load.el or site-init.el to customize the dumped
Emacs executable, any changes to `load-path' that these files make
will no longer be present after dumping.  To affect a permanent change
to `load-path', use the `--enable-locallisppath' option of `configure'.

Chong Yidong's avatar
Chong Yidong committed
84 85 86 87
+++
** The user option `initial-buffer-choice' can now specify a function
to set up the initial buffer.

Glenn Morris's avatar
Glenn Morris committed
88

89
* Changes in Emacs 24.4
90

91 92 93 94 95 96
+++
** New option `gnutls-verify-error', if non-nil, means that Emacs
should reject SSL/TLS certificates that GnuTLS determines as invalid.
(This option defaults to nil at present, but this is expected to change
in a future release.)

Eli Zaretskii's avatar
Eli Zaretskii committed
97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112
+++
** Emacs now supports menus on text-mode terminals.
If the terminal supports a mouse, clicking on the menu bar, or on
sensitive portions of the mode line or header line, will drop down the
menu defined at that position.  Likewise, clicking C-mouse-2 or
C-mouse-2 or C-mouse-3 on the text area will pop up the menus defined
for those locations.

If the text terminal does not support a mouse, you can activate the
first menu-bar menu by typing F10, which invokes `menu-bar-open'.

If you want the previous behavior, whereby F10 invoked `tmm-menubar',
customize the option `tty-menu-open-use-tmm' to a non-nil value.
(Typing M-` will always invoke `tmm-menubar', even if
`tty-menu-open-use-tmm' is nil.)

113
+++
Chong Yidong's avatar
Chong Yidong committed
114 115 116 117
** The *Messages* buffer is created in `messages-buffer-mode',
a new major mode, with read-only status.  Any code that might create
the *Messages* buffer should call the function `messages-buffer' to do
so and set up the mode.
118

Chong Yidong's avatar
Chong Yidong committed
119
** Emacs now supports ACLs (access control lists).
120 121 122 123
+++
*** Emacs preserves the ACL entries of files when backing up.
+++
*** New functions `file-acl' and `set-file-acl' get and set the ACL
124 125 126
entries of a file.  On GNU/Linux, the POSIX ACL interface is used via
libacl.  On MS-Windows, the NT Security APIs are used to emulate the
POSIX ACL interfaces.
127

128 129 130 131 132 133
** Multi-monitor support has been added.

*** New functions `display-monitor-attributes-list' and
`frame-monitor-attributes' can be used to obtain information about
each physical monitor on multi-monitor setups.

134 135 136
*** The functions `display-pixel-width' and `display-pixel-height' now
behave consistently among the platforms: they return the pixel width
or height for all physical monitors associated with the given display
Glenn Morris's avatar
Glenn Morris committed
137
as if they were on X11.  To get information for each physical
138 139 140 141
monitor, use the new functions above.  Similar notes also apply to
`x-display-pixel-width', `x-display-pixel-height', `display-mm-width',
`display-mm-height', `x-display-mm-width', and `x-display-mm-height'.

Chong Yidong's avatar
Chong Yidong committed
142 143 144
+++
** The cursor stops blinking after 10 blinks (by default) on X and NS.
You can change the default by customizing `blink-cursor-blinks'.
145

Chong Yidong's avatar
Chong Yidong committed
146 147 148 149 150
+++
** In keymaps where SPC scrolls forward, S-SPC now scrolls backward.
This affects View mode, etc.

** Help changes
Glenn Morris's avatar
Glenn Morris committed
151

Tassilo Horn's avatar
Tassilo Horn committed
152
+++
Chong Yidong's avatar
Chong Yidong committed
153 154 155 156 157
*** The command `apropos-variable' is renamed to `apropos-user-option'.
`apropos-user-option' shows all user options while `apropos-variable'
shows all variables.  When called with a universal prefix argument,
the two commands swap their behaviors.  When `apropos-do-all' is
non-nil, they output the same results.
158

Chong Yidong's avatar
Chong Yidong committed
159 160
+++
*** The key `?' now describes prefix bindings, like `C-h'.
161

Glenn Morris's avatar
Glenn Morris committed
162
*** The command `describe-function' has been extended for EIEIO.
163
Running it on constructors will show a full description of the
David Engster's avatar
David Engster committed
164
generated class.  For generic functions, it will show all
165 166 167 168
implementations together with links to the source.  The old commands
`describe-class', `describe-constructor' and `describe-generic' were
removed.

169 170
---
*** The function `quail-help' is no longer an interactive command.
Glenn Morris's avatar
Glenn Morris committed
171
Use `C-h C-\' (`describe-input-method') instead.
172

173 174
** ImageMagick

175
+++
Glenn Morris's avatar
Glenn Morris committed
176
*** ImageMagick images now support the :max-width and :max-height keywords.
177

178 179 180 181 182
+++
*** When using `create-image' with image data, you can pass a :format
attribute (via the property-list argument) in order to help
ImageMagick detect the image type.  The value should be a MIME
content-type that is found in the new variable `image-format-suffixes'.
183

Chong Yidong's avatar
Chong Yidong committed
184
** Frame and window changes
185

Chong Yidong's avatar
Chong Yidong committed
186 187 188
+++
*** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
bound to <f11> and M-<f10>, respectively.
189

Chong Yidong's avatar
Chong Yidong committed
190 191 192 193
*** New command `frameset-to-register' is now bound to `C-x r f', replacing
`frame-configuration-to-register'.  It offers similar functionality,
plus enhancements like the ability to restore deleted frames.  The
command `frame-configuration-to-register' still exists, but is unbound.
194

195
+++
Chong Yidong's avatar
Chong Yidong committed
196 197 198 199 200 201 202 203
*** New hooks `focus-in-hook', `focus-out-hook'.
These are normal hooks run when an Emacs frame gains or loses input focus.

---
*** `split-window' is now a non-interactive function, not a command.
As a command, it was a special case of `C-x 2' (`split-window-below'),
and as such superfluous.  After being reimplemented in Lisp, its
interactive form was mistakenly retained.
204

205
+++
Chong Yidong's avatar
Chong Yidong committed
206 207 208 209 210 211
*** New option `scroll-bar-adjust-thumb-portion'.
Available only on X, this option allows to control over-scrolling
using the scroll bar (i.e. dragging the thumb down even when the end
of the buffer is visible).

** Lisp evaluation changes
212
+++
Chong Yidong's avatar
Chong Yidong committed
213 214 215
*** `eval-defun' on an already defined defcustom calls the :set function,
if there is one.

216
+++
Glenn Morris's avatar
Glenn Morris committed
217
*** The commands `eval-expression' (`M-:'), `eval-last-sexp' (`C-x C-e'),
218 219 220
and `eval-print-last-sexp' (`C-j' in Lisp Interaction mode) can take a
zero prefix argument.  This disables truncation of lists in the output,
equivalent to setting `(eval-expression-)print-length' and
Xue Fuqiao's avatar
Xue Fuqiao committed
221
`(eval-expression-)print-level' to nil.  Additionally, it causes integers
222
to be printed in other formats (octal, hexadecimal, and character).
Chong Yidong's avatar
Chong Yidong committed
223

224 225 226
*** New hook `eval-expression-minibuffer-setup-hook' run by
`eval-expression' on entering the minibuffer.

Chong Yidong's avatar
Chong Yidong committed
227 228
---
** `write-region-inhibit-fsync' now defaults to t in batch mode.
229

230
+++
Chong Yidong's avatar
Chong Yidong committed
231 232
** `cache-long-line-scans' has been renamed to `cache-long-scans'
because it affects caching of paragraph scanning results as well.
Glenn Morris's avatar
Glenn Morris committed
233
Also, it is now enabled by default.
234

Chong Yidong's avatar
Chong Yidong committed
235 236 237 238 239
---
** 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.

Glenn Morris's avatar
Glenn Morris committed
240
** The default value of `comment-use-global-state' is now t,
Chong Yidong's avatar
Chong Yidong committed
241 242
and this variable has been marked obsolete.

Glenn Morris's avatar
Glenn Morris committed
243
---
Glenn Morris's avatar
Glenn Morris committed
244 245
** `emacs-bzr-version' has been renamed to `emacs-repository-version',
and works for git too, if you fetch the repository notes.
Glenn Morris's avatar
Glenn Morris committed
246

247
** `read-regexp-defaults-function' defines a function to read regexps,
Glenn Morris's avatar
Glenn Morris committed
248 249 250 251
used by commands like `rgrep', `lgrep' `occur', `highlight-regexp', etc.
You can customize this to specify a function that provides a default
value from the regexp last history element, or from the symbol found
at point.
Chong Yidong's avatar
Chong Yidong committed
252

253
+++
254 255
** New option `load-prefer-newer' affects how the `load' function chooses
the file to load.  If this is non-nil, then when both .el and .elc
Chong Yidong's avatar
Chong Yidong committed
256 257 258 259
versions of a file exist, and the caller did not explicitly specify
which one to load, then the newer file is loaded.  The default, nil,
means to always load the .elc file.

Chong Yidong's avatar
Chong Yidong committed
260 261 262 263 264 265 266 267 268 269 270

* Editing Changes in Emacs 24.4

** Indentation changes

+++
*** The behavior of `C-x TAB' (`indent-rigidly') has changed.
When invoked without a prefix argument, it now activates a transient
mode in which typing <left>, <right>, <S-left>, and <S-right> adjusts
the text indentation in the region.  Typing any other key resumes
normal editing behavior.
271

Chong Yidong's avatar
Chong Yidong committed
272
*** `electric-indent-mode' is enabled by default.
273

274
+++
Chong Yidong's avatar
Chong Yidong committed
275
*** `tab-stop-list' is now implicitly extended to infinity by repeating
Glenn Morris's avatar
Glenn Morris committed
276
the last step.  Its default value is changed to nil, which means a tab
Xue Fuqiao's avatar
Xue Fuqiao committed
277
stop every `tab-width' columns.
278

Glenn Morris's avatar
Glenn Morris committed
279 280 281 282
+++
** New command `cycle-spacing' acts like a smarter `just-one-space'.
When called in succession, it cycles between spacing conventions:
one space, no spaces, original spacing.
Chong Yidong's avatar
Chong Yidong committed
283

284
+++
Glenn Morris's avatar
Glenn Morris committed
285 286
** The new function `fill-single-char-nobreak-p' can stop fill from breaking
a line after a one-letter word, which is an error in some typographical
287
conventions.  To use it, add it to the `fill-nobreak-predicate' hook.
288

289
+++
Glenn Morris's avatar
Glenn Morris committed
290
** Uniquify is enabled by default, with `post-forward-angle-brackets' style.
Chong Yidong's avatar
Chong Yidong committed
291 292 293

** New command `C-x SPC' (`rectangle-mark-mode') makes a rectangular region.
Most commands are still unaware of it, but kill/yank do work on the rectangle.
294

295 296 297 298 299 300 301
+++
** New option `visual-order-cursor-movement'.
If this is non-nil, cursor motion with arrow keys will follow the
visual order of characters on the screen: <left> always moves to the
left, <right> always moves to the right, disregarding the surrounding
bidirectional context.

Chong Yidong's avatar
Chong Yidong committed
302
** Register changes
303

304 305 306
*** All interactive commands that read a register (`copy-to-register', etc.)
now display a temporary window after `register-preview-delay' seconds
that summarizes existing registers.  To disable this, set that option to nil.
307

308 309 310
+++
*** New command `C-x C-k x' (`kmacro-to-register') stores keyboard
macros in registers.
311

Chong Yidong's avatar
Chong Yidong committed
312 313 314
*** New command `C-x r f' (`frameset-to-register').
See Changes in Emacs 24.4, above.

315
+++
Chong Yidong's avatar
Chong Yidong committed
316
** New command `delete-duplicate-lines'.
317 318
This searches the region for identical lines, and removes all but one
copy of each repeated line.  The lines need not be sorted.
319

320

321
* Changes in Specialized Modes and Packages in Emacs 24.4
322

323
+++
Johan Bockgård's avatar
Johan Bockgård committed
324
** More packages look for ~/.emacs.d/<foo> additionally to ~/.<foo>.
Stefan Monnier's avatar
Stefan Monnier committed
325 326 327 328 329 330 331
Affected files:
~/.emacs.d/timelog	replaces  ~/.timelog
~/.emacs.d/vip		replaces  ~/.vip
~/.emacs.d/viper	replaces  ~/.viper
~/.emacs.d/ido.last	replaces  ~/.ido.last
~/.emacs.d/kkcrc	replaces  ~/.kkcrc
~/.emacs.d/quickurls	replaces  ~/.quickurls
332
~/.emacs.d/idlwave/	replaces  ~/.idlwave/
Stefan Monnier's avatar
Stefan Monnier committed
333 334 335 336 337 338 339
~/.emacs.d/bdfcache.el	replaces  ~/.bdfcache.el
~/.emacs.d/places	replaces  ~/.emacs-places
~/.emacs.d/shadows	replaces  ~/.shadows
~/.emacs.d/shadow_todo	replaces  ~/.shadow_todo
~/.emacs.d/strokes	replaces  ~/.strokes
~/.emacs.d/notes	replaces  ~/.notes
~/.emacs.d/type-break	replaces  ~/.type-break
340 341 342 343 344
Also the following files used by the now obsolete otodo-mode.el:
~/.emacs.d/todo-do	replaces  ~/.todo-do
~/.emacs.d/todo-done	replaces  ~/.todo-done
~/.emacs.d/todo-top	replaces  ~/.todo-top

Chong Yidong's avatar
Chong Yidong committed
345
** Backtrace and debugger
346

Chong Yidong's avatar
Chong Yidong committed
347 348 349
*** The Lisp debugger's `e' command now includes the lexical environment
when evaluating the code in the context at point.  Hence, it now lets
you access lexical variables.
350

351 352
+++
*** New command `v' (`debugger-toggle-locals') displays local vars.
353

Chong Yidong's avatar
Chong Yidong committed
354 355
*** New minor mode `jit-lock-debug-mode' lets you use the debuggers on
code run via JIT Lock.
356

Xue Fuqiao's avatar
Xue Fuqiao committed
357
---
358
** Battery information can now be retrieved from BSD's `apm' utility.
359

360 361
---
** In the Buffer Menu, `M-s a C-o' shows matches for a regexp in marked buffers.
362

363 364
** Calendar and Diary

365
---
Chong Yidong's avatar
Chong Yidong committed
366 367
*** New faces `calendar-weekday-header', `calendar-weekend-header',
and `calendar-month-header'.
368

369
+++
370 371
*** New option `calendar-day-header-array'.

372
+++
Glenn Morris's avatar
Glenn Morris committed
373
*** New variable `diary-from-outlook-function', used by the command
374 375
`diary-from-outlook'.

376
---
Chong Yidong's avatar
Chong Yidong committed
377
*** The variable `calendar-font-lock-keywords' is obsolete.
378

379 380
** Calc

Glenn Morris's avatar
Glenn Morris committed
381
+++
382 383 384 385 386 387
*** 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.

Glenn Morris's avatar
Glenn Morris committed
388 389 390
+++
*** The new option `calc-gregorian-switch' lets you configure if
(and when) Calc switches from the Julian to the Gregorian calendar.
391

Glenn Morris's avatar
Glenn Morris committed
392
+++
393 394
*** Support for ISO 8601 dates.

Chong Yidong's avatar
Chong Yidong committed
395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411
** CEDET

*** EDE

**** The cpp-root project now supports executing a compile command.
It can be set through the new :compile-command slot or the
buffer-local variable `compile-command'.

**** Better selection of include directories for the 'linux' project.
Include directories now support out-of-tree build directories and
target architecture auto-detection.

*** Semantic

**** Improved detection of used namespaces in current scope in C++.

**** Parsing of default values for variables and function arguments in C/C++.
412
They are also displayed by the summarize feature in the mode line.
Chong Yidong's avatar
Chong Yidong committed
413 414 415 416

**** Improved parsing of function pointers in C/C++.
This also includes parsing of function pointers as function arguments.

417 418
**** Parsing of C/C++ preprocessor macros that open new scope.
For example, this enables parsing of macros that open new namespaces.
Chong Yidong's avatar
Chong Yidong committed
419 420 421 422 423

**** Support for 'this' pointer in inline member functions in C++.

** cl-lib

424
*** New macro `cl-tagbody'.
Chong Yidong's avatar
Chong Yidong committed
425 426 427 428 429 430

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

** CUA mode

Chong Yidong's avatar
Chong Yidong committed
431
*** CUA mode now uses `delete-selection-mode' and `shift-select-mode'.
Glenn Morris's avatar
Glenn Morris committed
432 433
Hence, you can now enable it independently from those modes, and from
`transient-mark-mode'.
Chong Yidong's avatar
Chong Yidong committed
434

435
---
Chong Yidong's avatar
Chong Yidong committed
436 437
*** `cua-highlight-region-shift-only' is now obsolete.
You can disable `transient-mark-mode' to get the same result.
Chong Yidong's avatar
Chong Yidong committed
438 439 440

*** CUA's rectangles can now be used via `cua-rectangle-mark-mode'.

441 442
** CFEngine mode

Glenn Morris's avatar
Glenn Morris committed
443
---
444 445
*** Support for completion, ElDoc, and Flycheck has been added.

Glenn Morris's avatar
Glenn Morris committed
446
---
447 448
*** The current CFEngine syntax is parsed from "cf-promises -s json".
There is a fallback syntax available if you don't have cf-promises or
Glenn Morris's avatar
Glenn Morris committed
449
if your version doesn't support that option.  See option `cfengine-cf-promises'.
450

Chong Yidong's avatar
Chong Yidong committed
451 452
** Delete Selection mode can now be used without `transient-mark-mode'.

453 454
** Desktop

455 456
*** `desktop-auto-save-timeout' defines the number of seconds idle time
before auto-save of the desktop.
457

458
*** `desktop-restore-frames', enabled by default, allows saving and
459
restoring the frame/window configuration (frameset).  Additional options
460
`desktop-restore-in-current-display', `desktop-restore-reuses-frames'
461
and `desktop-restore-forces-onscreen' offer further customization.
462

463
+++
464 465
** New Dired minor mode `dired-hide-details-mode' toggles whether details,
such as file ownership or permissions, are visible.
466

Glenn Morris's avatar
Glenn Morris committed
467 468 469 470
---
** You can enable ElDoc inside the `eval-expression' minibuffer with:
  (add-hook 'eval-expression-minibuffer-setup-hook 'eldoc-mode)
The results display in the mode line.
471

472 473
** Electric Pair mode

Glenn Morris's avatar
Glenn Morris committed
474 475 476
*** New option `electric-pair-preserve-balance', enabled by default.
If non-nil, pairing/skipping only kicks in when that help the balance
of parentheses and quotes, i.e. the buffer should end up at least as
477 478
balanced as before.

Paul Eggert's avatar
Paul Eggert committed
479
You can further control this behavior by adjusting the predicates
Glenn Morris's avatar
Glenn Morris committed
480
stored in `electric-pair-inhibit-predicate' and `electric-pair-skip-self'.
481

Glenn Morris's avatar
Glenn Morris committed
482
*** New option `electric-pair-delete-adjacent-pairs', enabled by default.
483 484 485 486
In `electric-pair-mode', the commands `backward-delete-char' and
`backward-delete-char-untabify' are now bound to electric variants
that delete the closer when invoked between adjacent pairs.

Glenn Morris's avatar
Glenn Morris committed
487
*** New option `electric-pair-open-newline-between-pairs', enabled by default.
488 489 490 491
In `electric-pair-mode', inserting a newline between adjacent pairs
opens an extra newline after point, which is indented if
`electric-indent-mode' is also set.

Glenn Morris's avatar
Glenn Morris committed
492 493 494 495
*** New option `electric-pair-skip-whitespace', enabled by default.
This controls if skipping over closing delimiters should jump over any
whitespace slack.  Setting it to `chomp' makes it delete this
whitespace.  See also the variable `electric-pair-skip-whitespace-chars'.
496 497 498

*** New variables control the pairing in strings and comments.
You can customize `electric-pair-text-pairs' and
Paul Eggert's avatar
Paul Eggert committed
499
`electric-pair-text-syntax-table' to tweak pairing behavior inside
500 501
strings and comments.

502
** New EPA option `epa-mail-aliases'.
503 504 505 506 507 508 509 510 511 512 513 514
You can set this to a list of alias expansions for keys to use
in `epa-mail-encrypt'.

If one element of the variable's value is ("foo@bar.com" "foo@hello.org"),
that means: when one of the recipients of the message being encrypted
is `foo@bar.com', encrypt the message for `foo@hello.org' instead.

If one element of the variable's value is ("foo@bar.com"),
that means: when one of the recipients of the message being encrypted
is `foo@bar.com', ignore that name as regards encryption.
This is useful to avoid a query when you have no key for that name.

515
** New ERC option `erc-accidental-paste-threshold-seconds'.
Glenn Morris's avatar
Glenn Morris committed
516
If set to a number, this can be used to avoid accidentally pasting large
Chong Yidong's avatar
Chong Yidong committed
517 518 519
amounts of data into the ERC input.

+++
Glenn Morris's avatar
Glenn Morris committed
520
** New ERT macro `skip-unless' allows skipping ERT tests.
Chong Yidong's avatar
Chong Yidong committed
521 522 523 524 525
See the ERT manual for details.

** Eshell

+++
Glenn Morris's avatar
Glenn Morris committed
526
*** `eshell' now supports visual subcommands and options.
Chong Yidong's avatar
Chong Yidong committed
527 528 529 530 531 532 533
Eshell has been able to handle "visual" commands (interactive,
non-line oriented commands such as top that require display
capabilities not provided by eshell) by running them in an Emacs
terminal emulator.  See `eshell-visual-commands'.

This feature has been extended to subcommands and options that make a
usually line-oriented command a visual command.  Typical examples are
Glenn Morris's avatar
Glenn Morris committed
534
"git log" and "git <command> --help", which display their output in a
Chong Yidong's avatar
Chong Yidong committed
535 536 537 538
pager by default.  See `eshell-visual-subcommands' and
`eshell-visual-options'.

---
Glenn Morris's avatar
Glenn Morris committed
539
*** New Eshell-Tramp module.
Chong Yidong's avatar
Chong Yidong committed
540 541 542 543 544
External su and sudo commands are now the default; the internal,
Tramp-using variants can still be used by enabling the eshell-tramp
module.

---
545
** New F90 mode option `f90-smart-end-names'.
Chong Yidong's avatar
Chong Yidong committed
546 547

** Icomplete is a bit more like Ido.
548

Glenn Morris's avatar
Glenn Morris committed
549
*** Key bindings to navigate through and select the completions.
550

Chong Yidong's avatar
Chong Yidong committed
551
*** The icomplete-separator is customizable, and its default has changed.
552

Glenn Morris's avatar
Glenn Morris committed
553
*** Removed `icomplete-show-key-bindings'.
554

Chong Yidong's avatar
Chong Yidong committed
555 556 557 558 559
*** Icomplete-mode by defaults applies to all forms of minibuffer completion.
(setq icomplete-with-completion-tables '(internal-complete-buffer))
will revert to the old behavior.

** Ido
560

561 562
+++
*** An Ido user manual is now included.
563

564 565 566 567
---
*** The option `ido-use-virtual-buffers' can now take the value `auto'.
This means to use virtual buffers if the current ido input does not match
an existing buffer.
568

569 570 571
---
*** The variable `ido-decorations' can optionally have two new elements,
which are the brackets to use around the sole remaining completion.
Chong Yidong's avatar
Chong Yidong committed
572 573 574

** Image mode

575
+++
Chong Yidong's avatar
Chong Yidong committed
576 577 578 579
*** New commands `n' (`image-next-file') and `p' (`image-previous-file')
visit the next image file and the previous image file in the same
directory, respectively.

580
+++
Chong Yidong's avatar
Chong Yidong committed
581 582 583 584
*** New commands to show specific frames of multi-frame images.
`f' (`image-next-frame') and `b' (`image-previous-frame') visit the
next or previous frame.  `F' (`image-goto-frame') shows a specific frame.

585
+++
Chong Yidong's avatar
Chong Yidong committed
586
*** New commands to speed up, slow down, or reverse animation.
587 588 589 590
`a +' (`image-increase-speed') and `a -' (`image-decrease-speed') to
speed up and slow down the animation.  `a r' (`image-reverse-speed')
to reverse it and `a 0' (`image-reset-speed') to reset it.

Chong Yidong's avatar
Chong Yidong committed
591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606
---
*** The command `image-mode-fit-frame' deletes other windows.
When toggling, it restores the frame's previous window configuration.
It also has an optional frame argument, which can be used by Lisp
callers to fit the image to a frame other than the selected frame.

** Hi-Lock

*** New option `hi-lock-auto-select-face'.  When non-nil, hi-lock commands
will cycle through faces in `hi-lock-face-defaults' without prompting.

+++
*** New global command `M-s h .' (`highlight-symbol-at-point')
highlights the symbol found near point without prompting,
using the next face automatically.

Glenn Morris's avatar
Glenn Morris committed
607
** New Imenu option `imenu-generic-skip-comments-and-strings'.
Chong Yidong's avatar
Chong Yidong committed
608

609
---
Glenn Morris's avatar
Glenn Morris committed
610
** New Info face `info-index-match', used to highlight matches in index
Chong Yidong's avatar
Chong Yidong committed
611 612 613 614 615
entries displayed by `Info-index-next', `Info-virtual-index' and
`info-apropos'.

** JS Mode

Glenn Morris's avatar
Glenn Morris committed
616 617 618 619
---
*** New option `js-switch-indent-offset'.

---
Chong Yidong's avatar
Chong Yidong committed
620
*** Better indentation of multiple-variable declarations.
Glenn Morris's avatar
Glenn Morris committed
621
If a declaration spans several lines, variables on the following lines
Chong Yidong's avatar
Chong Yidong committed
622 623
are lined up to the first one.

Glenn Morris's avatar
Glenn Morris committed
624 625
---
*** Recognition and better indentation of continuations in array comprehensions.
Chong Yidong's avatar
Chong Yidong committed
626

Glenn Morris's avatar
Glenn Morris committed
627 628
+++
** MH-E has been updated to version 8.5 - see separate MH-E-NEWS file.
Chong Yidong's avatar
Chong Yidong committed
629 630 631

+++
** Octave mode
Glenn Morris's avatar
Glenn Morris committed
632 633 634 635 636

*** Font locking for texinfo comments and new keywords.

*** Completion in Octave file buffers.

Glenn Morris's avatar
Glenn Morris committed
637
*** ElDoc support.
Glenn Morris's avatar
Glenn Morris committed
638 639 640 641

*** Jump to definition.

*** Documentation lookup/search.
Chong Yidong's avatar
Chong Yidong committed
642

Glenn Morris's avatar
Glenn Morris committed
643 644
+++
** OPascal mode is the new name for Delphi mode
Chong Yidong's avatar
Chong Yidong committed
645

Glenn Morris's avatar
Glenn Morris committed
646
---
Chong Yidong's avatar
Chong Yidong committed
647
*** All delphi-* variables and functions have been renamed to opascal-*.
Glenn Morris's avatar
Glenn Morris committed
648
Obsolete aliases exist for those likely to have been used externally.
Glenn Morris's avatar
Glenn Morris committed
649

Glenn Morris's avatar
Glenn Morris committed
650 651
---
*** The option `delphi-newline-always-indents' has been removed.
Chong Yidong's avatar
Chong Yidong committed
652
Use `electric-indent-mode' instead.
Glenn Morris's avatar
Glenn Morris committed
653

Glenn Morris's avatar
Glenn Morris committed
654 655
---
*** The TAB key runs the standard `indent-for-tab-command', not `delphi-tab'.
Chong Yidong's avatar
Chong Yidong committed
656 657 658 659 660 661 662 663 664 665

** Package

*** The format of `archive-contents' files, generated by package
repositories, has changed to allow a new (fifth) element in the data
vectors, containing an associative list with extra properties.

*** `describe-package' buffer uses the `:url' extra property to
display a `Homepage' header, if it's present.

666 667 668 669 670 671 672
*** In the buffer produced by `describe-package', there are now buttons
listing the keywords related to that package.  You can click on them
to see other packages related to any given keyword.

*** In the *Packages* buffer, `f' or the Package->Filter menu filters
the packages by a keyword.

Glenn Morris's avatar
Glenn Morris committed
673 674 675
---
** In Prolog mode, `prolog-use-smie' has been removed,
along with the non-SMIE indentation code.
Xue Fuqiao's avatar
Xue Fuqiao committed
676

Chong Yidong's avatar
Chong Yidong committed
677
** Remember
678

Glenn Morris's avatar
Glenn Morris committed
679 680 681 682
*** The new command `remember-notes' creates a buffer that is saved on
`kill-emacs'.  You can think of it as a *scratch* buffer whose content
is preserved.  In fact, it was designed as a replacement for *scratch*
buffer and can be used that way by setting `initial-buffer-choice' to
Chong Yidong's avatar
Chong Yidong committed
683
`remember-notes' and `remember-notes-buffer-name' to "*scratch*".
Glenn Morris's avatar
Glenn Morris committed
684 685
Without the second change, the *scratch* buffer will still be there
for notes that do not need to be preserved.
686

Chong Yidong's avatar
Chong Yidong committed
687 688
*** The Remember package can now store notes in separates files.
You can use the new function `remember-store-in-files' within the
Glenn Morris's avatar
Glenn Morris committed
689 690 691
`remember-handler-functions' option.  See `remember-data-directory'
and `remember-directory-file-name-format' for new options related to
this function.
692

Chong Yidong's avatar
Chong Yidong committed
693 694 695 696
** Rmail

*** Customize `rmail-mbox-format' to influence some minor aspects of
how Rmail displays non-MIME messages.
697

698
---
Chong Yidong's avatar
Chong Yidong committed
699 700
*** The `unrmail' command now converts from BABYL to mboxrd format,
rather than mboxo.  Customize `unrmail-mbox-format' to change this.
701

Chong Yidong's avatar
Chong Yidong committed
702
** Ruby mode
703

Glenn Morris's avatar
Glenn Morris committed
704 705
---
*** Improved syntax highlighting and indentation.
706

Glenn Morris's avatar
Glenn Morris committed
707 708
---
*** New `electric-indent-mode' integration.
709

Glenn Morris's avatar
Glenn Morris committed
710 711
---
*** New option `ruby-encoding-magic-comment-style'.
Chong Yidong's avatar
Chong Yidong committed
712

Glenn Morris's avatar
Glenn Morris committed
713 714
---
*** New option `ruby-custom-encoding-magic-comment-template'.
Chong Yidong's avatar
Chong Yidong committed
715

Glenn Morris's avatar
Glenn Morris committed
716
---
Chong Yidong's avatar
Chong Yidong committed
717
*** New option `ruby-align-to-stmt-keywords'.
718

Glenn Morris's avatar
Glenn Morris committed
719 720
---
*** More Ruby file types have been added to `auto-mode-alist'.
721

722
** Search and Replace
723

724
+++
725 726 727 728
*** New global command `M-s .' (`isearch-forward-symbol-at-point')
starts a symbol (identifier) incremental search forward with the
symbol found near point added to the search string initially.

Chong Yidong's avatar
Chong Yidong committed
729
+++
730 731 732
*** `C-x 8 RET' in Isearch mode reads a character by its Unicode name
and adds it to the search string.

733 734 735
*** `M-s i' in Isearch mode toggles the variable `isearch-invisible'
between nil and the value of the option `search-invisible' (or `open'
when it's nil).
736

737 738 739
*** `query-replace' skips invisible text when `search-invisible' is nil,
and opens overlays with hidden text when `search-invisible' is `open'.

740
+++
Juri Linkov's avatar
Juri Linkov committed
741 742 743 744
*** A negative prefix arg of replacement commands replaces backward.
`M-- M-%' replaces a string backward, `M-- C-M-%' replaces a regexp
backward, `M-s w words M-- M-%' replaces a sequence of words backward.

745 746 747 748
+++
*** By default, prefix arguments do not now terminate Isearch mode.
Set `isearch-allow-prefix' to nil to restore old behavior.

Chong Yidong's avatar
Chong Yidong committed
749
+++
750 751 752 753
*** More Isearch commands accept prefix arguments, namely
`isearch-printing-char', `isearch-quote-char', `isearch-yank-word',
`isearch-yank-line'.

Chong Yidong's avatar
Chong Yidong committed
754
+++
755 756 757 758 759 760 761 762
*** Word search now matches whitespace at the beginning/end
of the search string if it contains leading/trailing whitespace.
In an incremental word search or when using a non-nil LAX argument
of `word-search-regexp', the lax matching can also match part of
the first word (in addition to the lax matching of the last word).
The same rules are now applied to the symbol search with the difference
that it matches symbols, and non-symbol characters between symbols.

Chong Yidong's avatar
Chong Yidong committed
763
+++
764
** New SES command `ses-rename-cell' allows assignment of names to SES cells.
Bill Wohler's avatar
Bill Wohler committed
765

Chong Yidong's avatar
Chong Yidong committed
766
---
Paul Eggert's avatar
Paul Eggert committed
767
** The shell.el option `explicit-bash-args' includes --noediting by default.
Glenn Morris's avatar
Glenn Morris committed
768
All non-ancient Bash versions support this option.
769

Chong Yidong's avatar
Chong Yidong committed
770
** Shell Script mode
771

772 773
---
*** The SMIE indentation engine is now used by default - see `sh-use-smie'.
774

775 776
---
*** `sh-mode' now has its own setting for `add-log-current-defun-function'.
777

Chong Yidong's avatar
Chong Yidong committed
778
** SMIE indentation can be customized via `smie-config'.
Glenn Morris's avatar
Glenn Morris committed
779 780
Emacs can learn the appropriate indentation settings if you provide it
with an indented sample file.
Chong Yidong's avatar
Chong Yidong committed
781

Glenn Morris's avatar
Glenn Morris committed
782
---
Glenn Morris's avatar
Glenn Morris committed
783
** New Term mode option `term-suppress-hard-newline'.
784

Glenn Morris's avatar
Glenn Morris committed
785
+++
786
** Todo mode has been rewritten and enhanced.
Glenn Morris's avatar
Glenn Morris committed
787 788 789 790 791 792
The Todo mode user manual describes all commands and most user
options.  To support some of these features, a new file format is
used, which is incompatible with the old format; however, you can
convert old todo and done item files to the new format on initializing
the first new todo file, or at any later time with the provided
conversion command.  The previous version of todo-mode.el has been
Glenn Morris's avatar
Glenn Morris committed
793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813
renamed to otodo-mode.el and is now obsolete.  New features include:

*** Support for multiple todo files and archive files of done items.

*** Renaming, reordering, moving, merging, and deleting categories.

*** Sortable tabular summaries of categories and the item types they contain.

*** Cross-category lists of items filtered by specific criteria.

*** More fine-grained interaction with the Emacs diary, by being able to
decide for each todo item whether it appears in the Fancy Diary display.

*** Highly flexible new item insertion and item editing.

*** Moving items between categories, storing done items in their category
or in archive files, undoing or unarchiving done items.

*** Reprioritizing items by inputting a numerical priority.

*** Extensive customizability of operation and display, including many faces.
Glenn Morris's avatar
Glenn Morris committed
814 815 816 817 818 819 820 821 822

** trace-function

*** No prompting for the destination buffer, unless a prefix argument is used.

*** With a prefix argument, you can enter a "context"; i.e., a Lisp
expression whose value at the time the function is entered/exited will
be printed along with the function name and arguments.  For example,
you can use this to trace the value of current-buffer or point.
Chong Yidong's avatar
Chong Yidong committed
823

824
** Tramp
825

Glenn Morris's avatar
Glenn Morris committed
826
*** The experimental url syntax for remote file names has been removed.
827

828 829
+++
*** New connection method "adb", which allows to access Android
830 831
devices by the Android Debug Bridge.  The variable `tramp-adb-program'
can be used to adapt the path of the "adb" program, if needed.
832

833 834 835 836
*** The connection methods "plink1", "ssh1", "ssh2", "scp1", "scp2",
"scpc" and "rsyncc" are discontinued.  The ssh option
"ControlMaster=auto" is set automatically in all ssh-based methods,
when possible.
837

838 839 840
+++
*** Handlers for `file-acl' and `set-file-acl' for remote machines
which support POSIX ACLs.
841

842 843 844 845
+++
*** Handlers for `file-notify-add-watch' and `file-notify-rm-watch'
for remote machines which support filesystem notifications.

846 847 848
** New command `url-cookie-list' displays all the current cookies, and
allows deleting selected cookies.

Chong Yidong's avatar
Chong Yidong committed
849
** VC and related modes
850

Xue Fuqiao's avatar
Xue Fuqiao committed
851
+++
Chong Yidong's avatar
Chong Yidong committed
852 853
*** In VC directory mode, `D' displays diffs between VC-controlled
whole tree revisions.
854

Xue Fuqiao's avatar
Xue Fuqiao committed
855
+++