NEWS 147 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'.
Glenn Morris's avatar
Glenn Morris committed
31
FIXME?  Should be --without-acl?
32

Chong Yidong's avatar
Chong Yidong committed
33
** Emacs can now be compiled with file notification support.
34 35
This happens by default if a suitable system library is found at
build time.  To prevent this, use the configure option
36
`--without-file-notification'.  See below for file-notify features.
37
FIXME?  This feature is not available for the Nextstep port. (?)
38

Glenn Morris's avatar
Glenn Morris committed
39
---
Chong Yidong's avatar
Chong Yidong committed
40 41
** The configure option `--without-compress-info' has been generalized,
and renamed to `--without-compress-install'.  It now prevents compression
42 43
of _any_ files during installation.

Glenn Morris's avatar
Glenn Morris committed
44
---
Chong Yidong's avatar
Chong Yidong committed
45
** The configure option `--with-crt-dir' has been removed.
46
It is no longer needed, as the crt*.o files are no longer linked specially.
47

Glenn Morris's avatar
Glenn Morris committed
48
---
49 50 51
** Directories passed to configure option `--enable-locallisppath' are
no longer created during installation.

Chong Yidong's avatar
Chong Yidong committed
52 53 54 55
** 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.
56

57
---
Glenn Morris's avatar
Glenn Morris committed
58 59
** Emacs for NS (Mac OS X, GNUstep) can be built with ImageMagick support.
This requires pkg-config to be available at configure time.
60

Glenn Morris's avatar
Glenn Morris committed
61

62
* Startup Changes in Emacs 24.4
Glenn Morris's avatar
Glenn Morris committed
63

64 65 66 67 68 69 70 71 72 73
+++
** 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.)

74 75
+++
** The -L option, which normally prepends its argument to load-path,
76 77
will instead append, if the argument begins with `:' (or `;' on MS Windows;
i.e., `path-separator').
78

79 80 81 82 83 84
+++
** 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
85 86 87 88
+++
** The user option `initial-buffer-choice' can now specify a function
to set up the initial buffer.

Glenn Morris's avatar
Glenn Morris committed
89

90
* Changes in Emacs 24.4
91

92 93 94 95 96 97
+++
** 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
98 99 100 101 102 103 104 105 106 107 108 109 110
+++
** 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.
Glenn Morris's avatar
Glenn Morris committed
111 112
(Typing M-` always invokes `tmm-menubar', even if `tty-menu-open-use-tmm'
is nil.)
Eli Zaretskii's avatar
Eli Zaretskii committed
113

114
+++
Chong Yidong's avatar
Chong Yidong committed
115 116 117 118
** 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.
119

Chong Yidong's avatar
Chong Yidong committed
120
** Emacs now supports ACLs (access control lists).
121 122 123 124
+++
*** Emacs preserves the ACL entries of files when backing up.
+++
*** New functions `file-acl' and `set-file-acl' get and set the ACL
125 126 127
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.
128

129 130
** Multi-monitor support has been added.

Xue Fuqiao's avatar
Xue Fuqiao committed
131
+++
132 133 134 135
*** New functions `display-monitor-attributes-list' and
`frame-monitor-attributes' can be used to obtain information about
each physical monitor on multi-monitor setups.

136 137 138
*** 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
139
as if they were on X11.  To get information for each physical
140 141 142 143
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
144 145 146
+++
** The cursor stops blinking after 10 blinks (by default) on X and NS.
You can change the default by customizing `blink-cursor-blinks'.
147

Chong Yidong's avatar
Chong Yidong committed
148 149 150 151 152
+++
** 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
153

Tassilo Horn's avatar
Tassilo Horn committed
154
+++
Chong Yidong's avatar
Chong Yidong committed
155 156 157 158 159
*** 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.
160

Chong Yidong's avatar
Chong Yidong committed
161 162
+++
*** The key `?' now describes prefix bindings, like `C-h'.
163

164
---
Glenn Morris's avatar
Glenn Morris committed
165
*** The command `describe-function' has been extended for EIEIO.
166
Running it on constructors will show a full description of the
David Engster's avatar
David Engster committed
167
generated class.  For generic functions, it will show all
168 169 170 171
implementations together with links to the source.  The old commands
`describe-class', `describe-constructor' and `describe-generic' were
removed.

172 173
---
*** The function `quail-help' is no longer an interactive command.
Glenn Morris's avatar
Glenn Morris committed
174
Use `C-h C-\' (`describe-input-method') instead.
175

176 177
** ImageMagick

178
+++
Glenn Morris's avatar
Glenn Morris committed
179
*** ImageMagick images now support the :max-width and :max-height keywords.
180

181 182 183 184 185
+++
*** 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'.
186

Chong Yidong's avatar
Chong Yidong committed
187
** Frame and window changes
188

Chong Yidong's avatar
Chong Yidong committed
189 190 191
+++
*** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
bound to <f11> and M-<f10>, respectively.
192

193
+++
Chong Yidong's avatar
Chong Yidong committed
194 195 196
*** New hooks `focus-in-hook', `focus-out-hook'.
These are normal hooks run when an Emacs frame gains or loses input focus.

Glenn Morris's avatar
Glenn Morris committed
197 198 199 200 201 202 203 204 205 206 207 208 209 210 211
*** Emacs can now change frame sizes in units of pixels, rather than
text rows or columns.  When maximizing a frame or making it fullscreen,
remaining extra pixels are no longer given to the minibuffer, the rightmost
fringe, or other unusable space, but are distributed among the text
areas of the frame's windows.  If the new option `frame-resize-pixelwise'
is non-nil, all frame size changes happen pixelwise and set the
corresponding size hints for the window manager.

*** Emacs can now change window sizes in units of pixels.
Mouse-dragging a mode line or window divider now changes the size of
adjacent windows pixelwise.  If the new option `window-resize-pixelwise'
is non-nil, functions like `balance-windows-area' and `fit-window-to-buffer'
resize windows pixelwise.  Most functions for changing or accessing
window sizes now have an additional argument that allows changes to apply,
or values to be returned, in pixels instead of lines/columns.
212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249

*** Emacs can now draw dividers between adjacent windows.  To put
dividers between side-by-side/vertically stacked windows customize the
frame parameters `right-divider-width' and `bottom-divider-width' to
some positive integer.  You can drag dividers with the mouse (they show
a corresponding cursor when the mouse hovers over them).  You can change
the appearance of dividers by customizing the faces `window-divider',
`window-divider-first-pixel', and `window-divider-last-pixel'.  The last
two are useful to provide a 3D effect, or to better distinguish dividers
from surrounding display objects.

*** New functions are provided to return the pixel sizes of window
components, namely `window-scroll-bar-width', `window-mode-line-height'
`window-header-line-height', `window-right-divider-width' and
`window-bottom-divider-width'.

*** The new function `window-text-pixel-size' returns the size of the
text of a window's buffer in pixels.  This allows functions like
`fit-frame-to-buffer' and `fit-window-to-buffer' to accurately fit a
window to its buffer as it will be displayed.

*** `fit-window-to-buffer' can now resize windows horizontally.
This behavior is controlled by the new option
`fit-window-to-buffer-horizontally'.

*** `fit-frame-to-buffer' can now fit frames in both directions.
This behavior is controlled by the option `fit-frame-to-buffer' which
tells in which direction(s) the frame shall be fit.  The new options
`fit-frame-to-buffer-margins' and `fit-frame-to-buffer-sizes' allow to
control the size of the frame and its position on screen.

*** Temp Buffer Resize Mode can now adjust height and width of windows
and frames.  `temp-buffer-resize-mode' is now able to adjust the height
and the width of a window displaying a temporary buffer.  The new option
`temp-buffer-max-width' allows to control the width of temporary buffer
windows.  Moreover, if the new option `fit-frame-to-buffer' is non-nil
and the buffer appears in the root window of a frame, Temp Buffer Resize
Mode will try to adjust width and/or height of the frame.
250

Chong Yidong's avatar
Chong Yidong committed
251 252 253 254 255
---
*** `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.
256

257
+++
258 259 260
*** The functions `window-size' and `window-total-size' now have an
optional argument to return a rounded size value.

261
+++
262 263 264
*** `window-state-put' now allows to put a window state into internal
windows too.

265
+++
Chong Yidong's avatar
Chong Yidong committed
266 267 268 269 270
*** 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).

271
+++
272 273 274 275
*** New basic action function `display-buffer-in-previous-window' has
`display-buffer' display a buffer in a window previously showing that
buffer.

276
+++
277 278 279 280
*** New basic action function `display-buffer-at-bottom' has
`display-buffer' choose or make a window at the bottom of the selected
frame.

Xue Fuqiao's avatar
Xue Fuqiao committed
281 282 283 284 285 286 287
*** New display action function `display-buffer-no-window' to not
display the buffer in a window.

*** New display action alist entry `allow-no-window' to indicate the
caller of `display-buffer' is ready to handle the case of not
displaying the buffer in a window.

Chong Yidong's avatar
Chong Yidong committed
288
** Lisp evaluation changes
289
+++
Chong Yidong's avatar
Chong Yidong committed
290 291 292
*** `eval-defun' on an already defined defcustom calls the :set function,
if there is one.

293
+++
Glenn Morris's avatar
Glenn Morris committed
294
*** The commands `eval-expression' (`M-:'), `eval-last-sexp' (`C-x C-e'),
295 296 297
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
298
`(eval-expression-)print-level' to nil.  Additionally, it causes integers
299
to be printed in other formats (octal, hexadecimal, and character).
Chong Yidong's avatar
Chong Yidong committed
300

Glenn Morris's avatar
Glenn Morris committed
301
---
302 303 304
*** New hook `eval-expression-minibuffer-setup-hook' run by
`eval-expression' on entering the minibuffer.

Chong Yidong's avatar
Chong Yidong committed
305 306
---
** `write-region-inhibit-fsync' now defaults to t in batch mode.
307

308
+++
309
** `cache-long-line-scans' is now non-nil, and renamed to `cache-long-scans',
Chong Yidong's avatar
Chong Yidong committed
310
because it affects caching of paragraph scanning results as well.
311
There is no reason to set this to nil except for debugging purposes.
312

Chong Yidong's avatar
Chong Yidong committed
313 314 315 316 317
---
** 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.

318
---
Glenn Morris's avatar
Glenn Morris committed
319
** The default value of `comment-use-global-state' is now t,
Chong Yidong's avatar
Chong Yidong committed
320 321
and this variable has been marked obsolete.

Glenn Morris's avatar
Glenn Morris committed
322
---
Glenn Morris's avatar
Glenn Morris committed
323 324
** `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
325

326
+++
327 328
** 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
329 330 331 332
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
333 334 335 336 337 338 339 340 341 342 343

* 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.
344

Chong Yidong's avatar
Chong Yidong committed
345
*** `electric-indent-mode' is enabled by default.
346

347
+++
Chong Yidong's avatar
Chong Yidong committed
348
*** `tab-stop-list' is now implicitly extended to infinity by repeating
Glenn Morris's avatar
Glenn Morris committed
349
the last step.  Its default value is changed to nil, which means a tab
Xue Fuqiao's avatar
Xue Fuqiao committed
350
stop every `tab-width' columns.
351

Glenn Morris's avatar
Glenn Morris committed
352 353 354 355
+++
** 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
356

357
+++
Glenn Morris's avatar
Glenn Morris committed
358 359
** 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
360
conventions.  To use it, add it to the `fill-nobreak-predicate' hook.
361

362
+++
Glenn Morris's avatar
Glenn Morris committed
363
** Uniquify is enabled by default, with `post-forward-angle-brackets' style.
Chong Yidong's avatar
Chong Yidong committed
364 365 366

** 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.
367

368 369 370 371 372 373 374
+++
** 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
375
** Register changes
376

Glenn Morris's avatar
Glenn Morris committed
377
+++
378 379 380
*** 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.
381 382
Interactive commands that read registers and want to make use of this
should use `register-read-with-preview' to read register names.
383

384
+++
Glenn Morris's avatar
Glenn Morris committed
385 386 387 388 389 390
*** New command `frameset-to-register' bound to `C-x r f', replacing
`frame-configuration-to-register'.  It offers similar functionality,
plus enhancements like the ability to restore deleted frames.
(`frame-configuration-to-register' still exists, but no longer has a
key binding.)

391 392 393
+++
*** New command `C-x C-k x' (`kmacro-to-register') stores keyboard
macros in registers.
394

395
+++
Chong Yidong's avatar
Chong Yidong committed
396
** New command `delete-duplicate-lines'.
397 398
This searches the region for identical lines, and removes all but one
copy of each repeated line.  The lines need not be sorted.
399

400

401
* Changes in Specialized Modes and Packages in Emacs 24.4
402

403
+++
Johan Bockgård's avatar
Johan Bockgård committed
404
** More packages look for ~/.emacs.d/<foo> additionally to ~/.<foo>.
Stefan Monnier's avatar
Stefan Monnier committed
405 406 407 408 409 410 411
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
412
~/.emacs.d/idlwave/	replaces  ~/.idlwave/
Stefan Monnier's avatar
Stefan Monnier committed
413 414 415 416 417 418 419
~/.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
420 421 422 423 424
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
425
** Backtrace and debugger
426

427
+++
Glenn Morris's avatar
Glenn Morris committed
428
*** New Lisp debugger command `v' (`debugger-toggle-locals') toggles the
429
display of local variables of the current stack frame.
Glenn Morris's avatar
Glenn Morris committed
430 431 432 433

*** The Lisp debugger's `e' command (`debugger-eval-expression') now includes
the lexical environment when evaluating the code in the context at point
(and so allows you to access lexical variables).
434

Glenn Morris's avatar
Glenn Morris committed
435 436
---
*** New minor mode `jit-lock-debug-mode' helps you debug code run via JIT Lock.
437

Xue Fuqiao's avatar
Xue Fuqiao committed
438
---
439
** Battery information can now be retrieved from BSD's `apm' utility.
440

441 442
---
** In the Buffer Menu, `M-s a C-o' shows matches for a regexp in marked buffers.
443

444 445
** Calendar and Diary

446
---
Chong Yidong's avatar
Chong Yidong committed
447 448
*** New faces `calendar-weekday-header', `calendar-weekend-header',
and `calendar-month-header'.
449

450
+++
451 452
*** New option `calendar-day-header-array'.

453
+++
Glenn Morris's avatar
Glenn Morris committed
454
*** New variable `diary-from-outlook-function', used by the command
455 456
`diary-from-outlook'.

457
---
Chong Yidong's avatar
Chong Yidong committed
458
*** The variable `calendar-font-lock-keywords' is obsolete.
459

460 461
** Calc

Glenn Morris's avatar
Glenn Morris committed
462
+++
463 464 465 466 467 468
*** 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
469 470 471
+++
*** The new option `calc-gregorian-switch' lets you configure if
(and when) Calc switches from the Julian to the Gregorian calendar.
472

Glenn Morris's avatar
Glenn Morris committed
473
+++
474 475
*** Support for ISO 8601 dates.

Chong Yidong's avatar
Chong Yidong committed
476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492
** 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++.
493
They are also displayed by the summarize feature in the mode line.
Chong Yidong's avatar
Chong Yidong committed
494 495 496 497

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

498 499
**** 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
500 501 502 503 504

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

** cl-lib

505
+++
506
*** New macro `cl-tagbody'.
507
This executes statements while allowing for control transfer to labels.
Chong Yidong's avatar
Chong Yidong committed
508 509 510 511 512 513

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

** CUA mode

514
+++
Chong Yidong's avatar
Chong Yidong committed
515
*** CUA mode now uses `delete-selection-mode' and `shift-select-mode'.
Glenn Morris's avatar
Glenn Morris committed
516 517
Hence, you can now enable it independently from those modes, and from
`transient-mark-mode'.
Chong Yidong's avatar
Chong Yidong committed
518

519
---
Chong Yidong's avatar
Chong Yidong committed
520 521
*** `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
522

523 524 525
+++
*** CUA's rectangles can now be used without CUA by calling the command
`cua-rectangle-mark-mode'.
Chong Yidong's avatar
Chong Yidong committed
526

527 528
** CFEngine mode

Glenn Morris's avatar
Glenn Morris committed
529
---
530 531
*** Support for completion, ElDoc, and Flycheck has been added.

Glenn Morris's avatar
Glenn Morris committed
532
---
533 534
*** 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
535
if your version doesn't support that option.  See option `cfengine-cf-promises'.
536

537 538
---
** Delete Selection mode can now be used without Transient Mark mode.
Chong Yidong's avatar
Chong Yidong committed
539

540 541
** Desktop

Glenn Morris's avatar
Glenn Morris committed
542 543 544 545
+++
*** `desktop-save-mode' by default now auto-saves an existing desktop file
after `desktop-auto-save-timeout'.  To disable this, customize that option
to nil (or zero).
546

Xue Fuqiao's avatar
Xue Fuqiao committed
547
+++
548
*** `desktop-restore-frames', enabled by default, allows saving and
549
restoring the frame/window configuration (frameset).  Additional options
550
`desktop-restore-in-current-display', `desktop-restore-reuses-frames'
551
and `desktop-restore-forces-onscreen' offer further customization.
552

553
+++
554 555
** New Dired minor mode `dired-hide-details-mode' toggles whether details,
such as file ownership or permissions, are visible.
556

Glenn Morris's avatar
Glenn Morris committed
557 558 559 560
---
** 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.
561

562 563
** Electric Pair mode

564
+++
Glenn Morris's avatar
Glenn Morris committed
565 566 567
*** 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
568 569
balanced as before.

Paul Eggert's avatar
Paul Eggert committed
570
You can further control this behavior by adjusting the predicates
Glenn Morris's avatar
Glenn Morris committed
571
stored in `electric-pair-inhibit-predicate' and `electric-pair-skip-self'.
572

573
+++
Glenn Morris's avatar
Glenn Morris committed
574
*** New option `electric-pair-delete-adjacent-pairs', enabled by default.
575 576 577 578
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.

579
+++
Glenn Morris's avatar
Glenn Morris committed
580
*** New option `electric-pair-open-newline-between-pairs', enabled by default.
581 582 583 584
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.

585
+++
Glenn Morris's avatar
Glenn Morris committed
586 587 588 589
*** 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'.
590

591
---
592 593
*** New variables control the pairing in strings and comments.
You can customize `electric-pair-text-pairs' and
Paul Eggert's avatar
Paul Eggert committed
594
`electric-pair-text-syntax-table' to tweak pairing behavior inside
595 596
strings and comments.

Glenn Morris's avatar
Glenn Morris committed
597
+++
598
** New EPA option `epa-mail-aliases'.
Glenn Morris's avatar
Glenn Morris committed
599 600
You can set this to a list of email address aliases that `epa-mail-encrypt'
should use to find keys.
601

602
---
603
** New ERC option `erc-accidental-paste-threshold-seconds'.
Glenn Morris's avatar
Glenn Morris committed
604
If set to a number, this can be used to avoid accidentally pasting large
Chong Yidong's avatar
Chong Yidong committed
605 606 607
amounts of data into the ERC input.

+++
Glenn Morris's avatar
Glenn Morris committed
608
** New ERT macro `skip-unless' allows skipping ERT tests.
Chong Yidong's avatar
Chong Yidong committed
609 610 611 612 613
See the ERT manual for details.

** Eshell

+++
Glenn Morris's avatar
Glenn Morris committed
614
*** `eshell' now supports visual subcommands and options.
Chong Yidong's avatar
Chong Yidong committed
615 616 617 618 619 620 621
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
622
"git log" and "git <command> --help", which display their output in a
Chong Yidong's avatar
Chong Yidong committed
623 624 625 626
pager by default.  See `eshell-visual-subcommands' and
`eshell-visual-options'.

---
Glenn Morris's avatar
Glenn Morris committed
627
*** New Eshell-Tramp module.
Chong Yidong's avatar
Chong Yidong committed
628 629 630 631 632
External su and sudo commands are now the default; the internal,
Tramp-using variants can still be used by enabling the eshell-tramp
module.

---
633
** New F90 mode option `f90-smart-end-names'.
Chong Yidong's avatar
Chong Yidong committed
634

Glenn Morris's avatar
Glenn Morris committed
635
** Icomplete
Glenn Morris's avatar
Glenn Morris committed
636
Icomplete is now more similar to Ido.
637

Glenn Morris's avatar
Glenn Morris committed
638
---
Glenn Morris's avatar
Glenn Morris committed
639 640 641 642
*** Icomplete by default now applies to all forms of minibuffer completion.
The variable `icomplete-with-completion-tables' (now a user option)
controls this.  To restore the old behavior, set it back to
'(internal-complete-buffer).
643

Glenn Morris's avatar
Glenn Morris committed
644
+++
Glenn Morris's avatar
Glenn Morris committed
645 646
*** You can navigate through and select completions using the keys
from `icomplete-minibuffer-map'.
647

Glenn Morris's avatar
Glenn Morris committed
648 649 650
---
*** The string that separates potential completions is now a customizable
option (`icomplete-separator').  The default is " | " rather than ",".
651

Glenn Morris's avatar
Glenn Morris committed
652 653 654 655 656 657
---
*** New face `icomplete-first-match'; and new options
`icomplete-hide-common-prefix' and `icomplete-show-matches-on-no-input'.

---
*** The option `icomplete-show-key-bindings' has been removed.
Chong Yidong's avatar
Chong Yidong committed
658 659

** Ido
660

661 662
+++
*** An Ido user manual is now included.
663

664 665 666 667
---
*** 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.
668

669 670 671
---
*** 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
672 673 674

** Image mode

675
+++
Chong Yidong's avatar
Chong Yidong committed
676 677 678 679
*** 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.

680
+++
Chong Yidong's avatar
Chong Yidong committed
681 682 683 684
*** 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.

685
+++
Chong Yidong's avatar
Chong Yidong committed
686
*** New commands to speed up, slow down, or reverse animation.
687 688 689 690
`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
691 692 693 694 695 696 697 698
---
*** 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

Glenn Morris's avatar
Glenn Morris committed
699 700 701
+++
*** New global command `M-s h .' (`highlight-symbol-at-point') highlights
the symbol found near point.
Chong Yidong's avatar
Chong Yidong committed
702 703

+++
Glenn Morris's avatar
Glenn Morris committed
704 705
*** New option `hi-lock-auto-select-face'.  When non-nil, hi-lock commands
will cycle through faces in `hi-lock-face-defaults' without prompting.
Chong Yidong's avatar
Chong Yidong committed
706

707
---
Glenn Morris's avatar
Glenn Morris committed
708
** New Imenu option `imenu-generic-skip-comments-and-strings'.
Chong Yidong's avatar
Chong Yidong committed
709

Glenn Morris's avatar
Glenn Morris committed
710 711
** Info

712
---
Glenn Morris's avatar
Glenn Morris committed
713
*** New Info face `info-index-match', used to highlight matches in index
Chong Yidong's avatar
Chong Yidong committed
714 715 716
entries displayed by `Info-index-next', `Info-virtual-index' and
`info-apropos'.

Glenn Morris's avatar
Glenn Morris committed
717 718 719 720
---
*** The Info-edit command is obsolete.  Editing Info nodes by hand
has not been relevant for some time.

Chong Yidong's avatar
Chong Yidong committed
721 722
** JS Mode

Glenn Morris's avatar
Glenn Morris committed
723 724 725 726
---
*** New option `js-switch-indent-offset'.

---
Chong Yidong's avatar
Chong Yidong committed
727
*** Better indentation of multiple-variable declarations.
Glenn Morris's avatar
Glenn Morris committed
728
If a declaration spans several lines, variables on the following lines
Chong Yidong's avatar
Chong Yidong committed
729 730
are lined up to the first one.

Glenn Morris's avatar
Glenn Morris committed
731 732
---
*** Recognition and better indentation of continuations in array comprehensions.
Chong Yidong's avatar
Chong Yidong committed
733

Glenn Morris's avatar
Glenn Morris committed
734 735
+++
** MH-E has been updated to version 8.5 - see separate MH-E-NEWS file.
Chong Yidong's avatar
Chong Yidong committed
736 737 738

+++
** Octave mode
Glenn Morris's avatar
Glenn Morris committed
739

Xue Fuqiao's avatar
Xue Fuqiao committed
740
*** Font locking for Texinfo comments and new keywords.
Glenn Morris's avatar
Glenn Morris committed
741 742 743

*** Completion in Octave file buffers.

Glenn Morris's avatar
Glenn Morris committed
744
*** ElDoc support.
Glenn Morris's avatar
Glenn Morris committed
745 746 747 748

*** Jump to definition.

*** Documentation lookup/search.
Chong Yidong's avatar
Chong Yidong committed
749

Glenn Morris's avatar
Glenn Morris committed
750 751
+++
** OPascal mode is the new name for Delphi mode
Chong Yidong's avatar
Chong Yidong committed
752

Glenn Morris's avatar
Glenn Morris committed
753
---
Chong Yidong's avatar
Chong Yidong committed
754
*** All delphi-* variables and functions have been renamed to opascal-*.
Glenn Morris's avatar
Glenn Morris committed
755
Obsolete aliases exist for those likely to have been used externally.
Glenn Morris's avatar
Glenn Morris committed
756

Glenn Morris's avatar
Glenn Morris committed
757 758
---
*** The option `delphi-newline-always-indents' has been removed.
Chong Yidong's avatar
Chong Yidong committed
759
Use `electric-indent-mode' instead.
Glenn Morris's avatar
Glenn Morris committed
760

Glenn Morris's avatar
Glenn Morris committed
761 762
---
*** The TAB key runs the standard `indent-for-tab-command', not `delphi-tab'.
Chong Yidong's avatar
Chong Yidong committed
763 764 765

** Package

Glenn Morris's avatar
Glenn Morris committed
766 767 768 769 770 771 772 773 774 775
+++
*** In the `list-packages' buffer, you can use `f' (`package-menu-filter')
to filter the list of packages by a keyword.

+++
*** In the `describe-package' buffer, there are now buttons listing the 
keywords related to the package.  Click on a button to see other packages
related to that keyword.

---
Chong Yidong's avatar
Chong Yidong committed
776 777 778
*** 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.
Glenn Morris's avatar
Glenn Morris committed
779 780
(For example, `describe-package' uses the `:url' extra property to
display a "Homepage" header.)
781

Glenn Morris's avatar
Glenn Morris committed
782 783 784
---
** In Prolog mode, `prolog-use-smie' has been removed,
along with the non-SMIE indentation code.
Xue Fuqiao's avatar
Xue Fuqiao committed
785

Chong Yidong's avatar
Chong Yidong committed
786
** Remember
787

Glenn Morris's avatar
Glenn Morris committed
788 789 790
+++
*** The new command `remember-notes' creates a buffer that is saved on exit.
You can use it as a more permanent *scratch* buffer.
791

Glenn Morris's avatar
Glenn Morris committed
792 793 794 795 796
+++
*** Remember can now store notes in separate files.
To use this, add `remember-store-in-files' to the `remember-handler-functions'
option.  The files are saved in `remember-data-directory' using
names specified by `remember-directory-file-name-format'.
797

Chong Yidong's avatar
Chong Yidong committed
798 799
** Rmail

800
+++
Chong Yidong's avatar
Chong Yidong committed
801 802
*** Customize `rmail-mbox-format' to influence some minor aspects of
how Rmail displays non-MIME messages.
803

804
---
Chong Yidong's avatar
Chong Yidong committed
805 806
*** The `unrmail' command now converts from BABYL to mboxrd format,
rather than mboxo.  Customize `unrmail-mbox-format' to change this.
807

Chong Yidong's avatar
Chong Yidong committed
808
** Ruby mode
809

Glenn Morris's avatar
Glenn Morris committed
810 811
---
*** Improved syntax highlighting and indentation.
812

Glenn Morris's avatar
Glenn Morris committed
813 814
---
*** New `electric-indent-mode' integration.
815

Glenn Morris's avatar
Glenn Morris committed
816 817
---
*** New option `ruby-encoding-magic-comment-style'.
Chong Yidong's avatar
Chong Yidong committed
818

Glenn Morris's avatar
Glenn Morris committed
819 820
---
*** New option `ruby-custom-encoding-magic-comment-template'.
Chong Yidong's avatar
Chong Yidong committed
821

Glenn Morris's avatar
Glenn Morris committed
822
---
Chong Yidong's avatar
Chong Yidong committed
823
*** New option `ruby-align-to-stmt-keywords'.
824

825 826 827
---
*** New option `ruby-align-chained-calls'.

Glenn Morris's avatar
Glenn Morris committed
828 829
---
*** More Ruby file types have been added to `auto-mode-alist'.
830

831
** Search and Replace
832

833
+++
834 835 836 837
*** 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.