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GNU Emacs NEWS -- history of user-visible changes.  2003-05-21
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Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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See the end for copying conditions.

Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
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For older news, see the file ONEWS
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You can narrow news to the specific version by calling
`view-emacs-news' with a prefix argument or by typing C-u C-h C-n.
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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 ---
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so we will look at it and add it to the manual.
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* Installation Changes in Emacs 21.4
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** Emacs includes now support for loading image libraries on demand.
(Currently this feature is only used on MS Windows.)  You can configure
the supported image types and their associated dynamic libraries by
setting the variable `image-library-alist'.

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---
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** New translations of the Emacs Tutorial are available in the following
   languages: Brasilian, Bulgarian, Chinese (both with simplified and
   traditional characters), French, and Italian.  Type `C-u C-h t' to
   choose one of them in case your language setup doesn't automatically
   select the right one.
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** You can build Emacs with Gtk+ widgets by specifying `--with-x-toolkit=gtk'
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when you run configure.  This requires Gtk+ 2.0 or newer.  This port
provides a way to display multilingual text in menus (with some caveats).
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---
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** Emacs can now be built without sound support.

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** The `emacsserver' program has been removed, replaced with elisp code.

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** Emacs now supports new configure options `--program-prefix',
`--program-suffix' and `--program-transform-name' that affect the names of
installed programs.

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---
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** By default, Emacs now uses a setgid helper program to update game
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scores.  The directory ${localstatedir}/games/emacs is the normal
place for game scores to be stored.  This may be controlled by the
configure option `--with-game-dir'.  The specific user that Emacs uses
to own the game scores is controlled by `--with-game-user'.  If access
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to a game user is not available, then scores will be stored separately
in each user's home directory.
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---
** Leim is now part of the Emacs distribution.
You no longer need to download a separate tarball in order to build
Emacs with Leim.

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** The Emacs Lisp Reference Manual is now part of the distribution.

The ELisp reference manual in Info format is built as part of the
Emacs build procedure and installed together with the Emacs User
Manual.  A menu item was added to the menu bar that makes it easy
accessible (Help->More Manuals->Emacs Lisp Reference).

---
** The Introduction to Programming in Emacs Lisp manual is now part of
the distribution.

This manual is now part of the standard distribution and is installed,
together with the Emacs User Manual, into the Info directory.  A menu
item was added to the menu bar that makes it easy accessible
(Help->More Manuals->Introduction to Emacs Lisp).

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** Support for Cygwin was added.

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---
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** Support for FreeBSD/Alpha has been added.

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---
** Support for GNU/Linux systems on S390 machines was added.

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---
** Support for MacOS X was added.
See the files mac/README and mac/INSTALL for build instructions.

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---
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** Support for GNU/Linux systems on X86-64 machines was added.
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---
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** A French translation of the `Emacs Survival Guide' is available.

---
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** Building with -DENABLE_CHECKING does not automatically build with union
types any more.  Add -DUSE_LISP_UNION_TYPE if you want union types.
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* Changes in Emacs 21.4
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** You can now follow links by clicking Mouse-1 on the link.
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Traditionally, Emacs uses a Mouse-1 click to set point and a Mouse-2
click to follow a link, whereas most other applications use a Mouse-1
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click for both purposes, depending on whether you click outside or
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inside a link.  With release 21.4, the behaviour of a Mouse-1 click
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has been changed to match this context-sentitive dual behaviour.

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Depending on the current mode, a Mouse-2 click in Emacs may do much
more than just follow a link, so the new Mouse-1 behaviour is only
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activated for modes which explicitly mark a clickable text as a "link"
(see the new function `mouse-on-link-p' for details).  The lisp
packages that are included in release 21.4 have been adapted to do
this, but external packages may not yet support this.  However, there
is no risk in using such packages, as the worst thing that could
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happen is that you get the original Mouse-1 behaviour when you click
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on a link, which typically means that you set point where you click.

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If you want to get the original Mouse-1 action also inside a link, you
just need to press the Mouse-1 button a little longer than a normal
click (i.e. press and hold the Mouse-1 button for half a second before
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you release it).

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Dragging the Mouse-1 inside a link still performs the original
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drag-mouse-1 action, typically copy the text.

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You can customize the new Mouse-1 behaviour via the new user option
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`mouse-1-click-follows-link'.

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** When the undo information of the current command gets really large
(beyond the value of `undo-outer-limit'), Emacs asks you whether to
discard it or keep it.

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** line-move-ignore-invisible now defaults to t.

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** In Outline mode, hide-body no longer hides lines at the top
of the file that precede the first header line.

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+++
** In Enriched mode, `set-left-margin' and `set-right-margin' are now
by default bound to `C-c [' and `C-c ]' instead of the former `C-c C-l'
and `C-c C-r'.

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** In processing a local variables list, Emacs strips the prefix and
suffix are from every line before processing all the lines.

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+++
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** `apply-macro-to-region-lines' now operates on all lines that begin
in the region, rather than on all complete lines in the region.

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** global-whitespace-mode is a new alias for whitespace-global-mode.

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** There are now two new regular expression operators, \_< and \_>,
for matching the beginning and end of a symbol.  A symbol is a
non-empty sequence of either word or symbol constituent characters, as
specified by the syntax table.

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** Passing resources on the command line now works on MS Windows.
You can use --xrm to pass resource settings to Emacs, overriding any
existing values.  For example:

  emacs --xrm "Emacs.Background:red" --xrm "Emacs.Geometry:100x20"

will start up Emacs on an initial frame of 100x20 with red background,
irrespective of geometry or background setting on the Windows registry.

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** New features in evaluation commands

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*** The function `eval-defun' (C-M-x) called on defface reinitializes
the face to the value specified in the defface expression.

*** Typing C-x C-e twice prints the value of the integer result
in additional formats (octal, hexadecimal, character) specified
by the new function `eval-expression-print-format'.  The same
function also defines the result format for `eval-expression' (M-:),
`eval-print-last-sexp' (C-j) and some edebug evaluation functions.
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** New input method chinese-sisheng for inputting Chinese Pinyin
characters.

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** New command quail-show-key shows what key (or key sequence) to type
in the current input method to input a character at point.
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** Convenient commands to switch buffers in a cyclic order are C-x <left>
(prev-buffer) and C-x <right> (next-buffer).

** Commands winner-redo and winner-undo, from winner.el, are now bound to
C-c <left> and C-c <right>, respectively.  This is an incompatible change.

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** Help commands `describe-function' and `describe-key' now show function
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arguments in lowercase italics on displays that support it.  To change the
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default, customize face `help-argument-name' or redefine the function
`help-default-arg-highlight'.
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---
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** The comint prompt can now be made read-only, using the new user
option `comint-prompt-read-only'.  This is not enabled by default,
except in IELM buffers.  The read-only status of IELM prompts can be
controlled with the new user option `ielm-prompt-read-only', which
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overrides `comint-prompt-read-only'.

The new commands `comint-kill-whole-line' and `comint-kill-region'
support editing comint buffers with read-only prompts.

`comint-kill-whole-line' is like `kill-whole-line', but ignores both
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read-only and field properties.  Hence, it always kill entire
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lines, including any prompts.

`comint-kill-region' is like `kill-region', except that it ignores
read-only properties, if it is safe to do so.  This means that if any
part of a prompt is deleted, then the entire prompt must be deleted
and that all prompts must stay at the beginning of a line.  If this is
not the case, then `comint-kill-region' behaves just like
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`kill-region' if read-only are involved: it copies the text to the
kill-ring, but does not delete it.
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** You can now use next-error (C-x `) and previous-error to advance to
the next/previous matching line found by M-x occur.

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** Telnet now prompts you for a port number with C-u M-x telnet.
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+++
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** New command line option -Q.

This is like using -q --no-site-file, but in addition it also disables
the menu-bar, the tool-bar, the scroll-bars, tool tips, the blinking
cursor, and the fancy startup screen.

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** C-h v and C-h f commands now include a hyperlink to the C source for
variables and functions defined in C (if the C source is available).

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** When used interactively, `format-write-file' now asks for confirmation
before overwriting an existing file, unless a prefix argument is
supplied.  This behavior is analogous to `write-file'.

** You can now use Auto Revert mode to `tail' a file.
If point is at the end of a file buffer before reverting, Auto Revert
mode keeps it at the end after reverting.  Similarly if point is
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displayed at the end of a file buffer in any window, it stays at
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the end of the buffer in that window.  This allows to tail a file:
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just put point at the end of the buffer and it stays there.  This
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rule applies to file buffers.  For non-file buffers, the behavior may
be mode dependent.

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If you are sure that the file will only change by growing at the end,
then you can tail the file more efficiently by using the new minor
mode Auto Revert Tail mode.  The function `auto-revert-tail-mode'
toggles this mode.

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** Auto Revert mode is now more careful to avoid excessive reverts and
other potential problems when deciding which non-file buffers to
revert.  This matters especially if Global Auto Revert mode is enabled
and `global-auto-revert-non-file-buffers' is non-nil.  Auto Revert
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mode only reverts a non-file buffer if the buffer has a non-nil
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`revert-buffer-function' and a non-nil `buffer-stale-function', which
decides whether the buffer should be reverted.  Currently, this means
that auto reverting works for Dired buffers (although this may not
work properly on all operating systems) and for the Buffer Menu.

** If the new user option `auto-revert-check-vc-info' is non-nil, Auto
Revert mode reliably updates version control info (such as the version
control number in the mode line), in all version controlled buffers in
which it is active.  If the option is nil, the default, then this info
only gets updated whenever the buffer gets reverted.

** New command `Buffer-menu-toggle-files-only' toggles display of file
buffers only in the Buffer Menu.  It is bound to `T' in Buffer Menu
mode.

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** M-x compile has become more robust and reliable

Quite a few more kinds of messages are recognized.  Messages that are
recognized as warnings or informational come in orange or green, instead of
red.  Informational messages are by default skipped with `next-error'
(controlled by `compilation-skip-threshold').

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Location data is collected on the fly as the *compilation* buffer changes.
This means you could modify messages to make them point to different files.
This also means you can not go to locations of messages you may have deleted.

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The variable `compilation-error-regexp-alist' has now become customizable.  If
you had added your own regexps to this, you'll probably need to include a
leading `^', otherwise they'll match anywhere on a line.  There is now also a
`compilation-mode-font-lock-keywords' and it nicely handles all the checks
that configure outputs and -o options so you see at a glance where you are.
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The new file etc/compilation.txt gives examples of each type of message.

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** Compilation mode enhancements:

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*** New user option `compilation-environment'.
This option allows you to specify environment variables for inferior
compilation processes without affecting the environment that all
subprocesses inherit.

** Grep has been decoupled from compilation mode setup.

*** There's a new separate package grep.el.

*** M-x grep has been adapted to new compile
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Hits are fontified in green, and hits in binary files in orange.  Grep buffers
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can be saved and automatically revisited with the new Grep mode.
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*** Grep commands now have their own submenu and customization group.

*** The new variables `grep-window-height', `grep-auto-highlight', and
`grep-scroll-output' can be used to override the corresponding
compilation mode settings for grep commands.

*** New option `grep-highlight-matches' highlightes matches in *grep*
buffer.  It uses a special feature of some grep programs which accept
--color option to output markers around matches.  When going to the next
match with `next-error' the exact match is highlighted in the source
buffer.  Otherwise, if `grep-highlight-matches' is nil, the whole
source line is highlighted.

*** New key bindings in grep output window:
SPC and DEL scrolls window up and down.  C-n and C-p moves to next and
previous match in the grep window.  RET jumps to the source line of
the current match.  `n' and `p' shows next and previous match in
other window, but does not switch buffer.  `{' and `}' jumps to the
previous or next file in the grep output.  TAB also jumps to the next
file.

** New options `next-error-highlight' and `next-error-highlight-no-select'
specify the method of highlighting of the corresponding source line
in new face `next-error'.

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** A new minor mode `next-error-follow-minor-mode' can be used in
compilation-mode, grep-mode, occur-mode, and diff-mode (i.e. all the
modes that can use `next-error').  In this mode, cursor motion in the
buffer causes automatic display in another window of the corresponding
matches, compilation errors, etc.  This minor mode can be toggled with
C-c C-f.
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** M-x diff uses diff-mode instead of compilation-mode.

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** M-x compare-windows now can automatically skip non-matching text to
resync points in both windows.

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** New command `strokes-global-set-stroke-string'.
This is like `strokes-global-set-stroke', but it allows you to bind
the stroke directly to a string to insert.  This is convenient for
using strokes as an input method.

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** Gnus package

*** Gnus now includes Sieve and PGG
Sieve is a library for managing Sieve scripts.  PGG is a library to handle
PGP/MIME.

*** There are many news features, bug fixes and improvements.
See the file GNUS-NEWS or the node "Oort Gnus" in the Gnus manual for details.

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** Desktop package

*** Desktop saving is now a minor mode, desktop-save-mode. Variable
desktop-enable is obsolete. Customize desktop-save-mode to enable desktop
saving.

*** Buffers are saved in the desktop file in the same order as that in the
buffer list.

*** New commands:
  - desktop-revert reverts to the last loaded desktop.
  - desktop-change-dir kills current desktop and loads a new.
  - desktop-save-in-desktop-dir saves desktop in the directory from which
    it was loaded.

*** New customizable variables:
  - desktop-save. Determins whether the desktop should be saved when it is
    killed.
  - desktop-file-name-format.
  - desktop-path. List of directories in which to lookup the desktop file.
  - desktop-locals-to-save.
  - desktop-globals-to-clear.
  - desktop-clear-preserve-buffers-regexp.

*** New command line option --no-desktop

*** New hooks:
  - desktop-after-read-hook run after a desktop is loaded.
  - desktop-no-desktop-file-hook run when no desktop file is found.

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---
** The saveplace.el package now filters out unreadable files.
When you exit Emacs, the saved positions in visited files no longer
include files that aren't readable, e.g. files that don't exist.
Customize the new option `save-place-forget-unreadable-files' to nil
to get the old behavior.  The new options `save-place-save-skipped'
and `save-place-skip-check-regexp' allow further fine-tuning of this
feature.

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** You can have several Emacs servers on the same machine.

	% emacs --eval '(setq server-name "foo")' -f server-start &
	% emacs --eval '(setq server-name "bar")' -f server-start &
	% emacsclient -s foo file1
	% emacsclient -s bar file2

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** On window systems, lines which are exactly as wide as the window
(not counting the final newline character) are no longer broken into
two lines on the display (with just the newline on the second line).
Instead, the newline now "overflows" into the right fringe, and the
cursor will be displayed in the fringe when positioned on that newline.

The new user option 'overflow-newline-into-fringe' may be set to nil to
revert to the old behaviour of continuing such lines.

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** The buffer boundaries (i.e. first and last line in the buffer) may
now be marked with angle bitmaps in the fringes.  In addition, up and
down arrow bitmaps may be shown at the top and bottom of the left or
right fringe if the window can be scrolled in either direction.
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This behavior is activated by setting the buffer-local variable
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`indicate-buffer-boundaries' to a non-nil value.  The default value of
this variable is found in `default-indicate-buffer-boundaries'.

If value is `left' or `right', both angle and arrow bitmaps are
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displayed in the left or right fringe, resp.
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Value may also be an alist which specifies the presense and position
of each bitmap individually.
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For example, ((top . left) (t .  right)) places the top angle bitmap
in left fringe, the bottom angle bitmap in right fringe, and both
arrow bitmaps in right fringe.  To show just the angle bitmaps in the
left fringe, but no arrow bitmaps, use ((top . left) (bottom . left)).
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** New command `display-local-help' displays any local help at point
in the echo area.  It is bound to `C-h .'.  It normally displays the
same string that would be displayed on mouse-over using the
`help-echo' property, but, in certain cases, it can display a more
keyboard oriented alternative.

** New user option `help-at-pt-display-when-idle' allows to
automatically show the help provided by `display-local-help' on
point-over, after suitable idle time.  The amount of idle time is
determined by the user option `help-at-pt-timer-delay' and defaults
to one second.  This feature is turned off by default.

** New commands `scan-buf-next-region' and `scan-buf-previous-region'
move to the start of the next (previous, respectively) region with
non-nil help-echo property and display any help found there in the
echo area, using `display-local-help'.

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** Help mode now only makes hyperlinks for faces when the face name is
preceded or followed by the word `face'.  It no longer makes
hyperlinks for variables without variable documentation, unless
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preceded by one of the words `variable' or `option'.  It now makes
hyperlinks to Info anchors (or nodes) if the anchor (or node) name is
enclosed in single quotes and preceded by `info anchor' or `Info
anchor' (in addition to earlier `info node' and `Info node').
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** The max size of buffers and integers has been doubled.
On 32bit machines, it is now 256M (i.e. 268435455).

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** The -f option, used from the command line to call a function,
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now reads arguments for the function interactively if it is
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an interactively callable function.


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** sql changes.

*** The variable `sql-product' controls the highlightng of different
SQL dialects.  This variable can be set globally via Customize, on a
buffer-specific basis via local variable settings, or for the current
session using the new SQL->Product submenu.  (This menu replaces the
SQL->Highlighting submenu.)

The following values are supported:

    ansi	ANSI Standard (default)
    db2		DB2
    informix    Informix
    ingres      Ingres
    interbase	Interbase
    linter	Linter
    ms		Microsoft
    mysql	MySQL
    oracle	Oracle
    postgres	Postgres
    solid       Solid
    sqlite      SQLite
    sybase      Sybase

The current product name will be shown on the mode line following the
SQL mode indicator.

The technique of setting `sql-mode-font-lock-defaults' directly in
your .emacs will no longer establish the default highlighting -- Use
`sql-product' to accomplish this.

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ANSI keywords are always highlighted.

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*** The function `sql-add-product-keywords' can be used to add
font-lock rules to the product specific rules.  For example, to have
all identifiers ending in "_t" under MS SQLServer treated as a type,
you would use the following line in your .emacs file:

  (sql-add-product-keywords 'ms
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             '(("\\<\\w+_t\\>" . font-lock-type-face)))
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*** Oracle support includes keyword highlighting for Oracle 9i.  Most
SQL and PL/SQL keywords are implemented.  SQL*Plus commands are
highlighted in `font-lock-doc-face'.

*** Microsoft SQLServer support has been significantly improved.
Keyword highlighting for SqlServer 2000 is implemented.
sql-interactive-mode defaults to use osql, rather than isql, because
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osql flushes its error stream more frequently.  Thus error messages
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are displayed when they occur rather than when the session is
terminated.

If the username and password are not provided to `sql-ms', osql is
called with the -E command line argument to use the operating system
credentials to authenticate the user.

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*** Postgres support is enhanced.
Keyword highlighting of Postgres 7.3 is implemented.  Prompting for
the username and the pgsql `-U' option is added.

*** MySQL support is enhanced.
Keyword higlighting of MySql 4.0 is implemented.

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*** Imenu support has been enhanced to locate tables, views, indexes,
packages, procedures, functions, triggers, sequences, rules, and
defaults.

*** Added SQL->Start SQLi Session menu entry which calls the
appropriate sql-interactive-mode wrapper for the current setting of
`sql-product'.

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** M-x view-file and commands that use it now avoid interfering
with special modes such as Tar mode.

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** Enhancements to apropos commands:

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*** The apropos commands now accept a list of words to match.
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When more than one word is specified, at least two of those words must
be present for an item to match.  Regular expression matching is still
available.

*** The new option `apropos-sort-by-scores' causes the matching items
to be sorted according to their score.  The score for an item is a
number calculated to indicate how well the item matches the words or
regular expression that you entered to the apropos command.  The best
match is listed first, and the calculated score is shown for each
matching item.
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** The old bindings C-M-delete and C-M-backspace have been deleted,
since there are situations where one or the other will shut down
the operating system or your X server.

** New minor mode, Visible mode, toggles invisibility in the current buffer.
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When enabled, it makes all invisible text visible.  When disabled, it
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restores the previous value of `buffer-invisibility-spec'.
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** New command `kill-whole-line' kills an entire line at once.
By default, it is bound to C-S-<backspace>.

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** New commands to operate on pairs of open and close characters:
`insert-pair', `delete-pair', `raise-sexp'.

** A prefix argument of C-M-q in Emacs Lisp mode pretty-printifies the
list starting after point.

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** Dired mode:

*** New faces dired-header, dired-mark, dired-marked, dired-flagged,
dired-ignored, dired-directory, dired-symlink, dired-warning
introduced for Dired mode instead of font-lock faces.

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*** New Dired command `dired-compare-directories' marks files
with different file attributes in two dired buffers.

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*** New Dired command `dired-do-touch' (bound to T) changes timestamps
of marked files with the value entered in the minibuffer.
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*** In Dired's ! command (dired-do-shell-command), `*' and `?' now
control substitution of the file names only when they are surrounded
by whitespace.  This means you can now use them as shell wildcards
too.  If you want to use just plain `*' as a wildcard, type `*""'; the
doublequotes make no difference in the shell, but they prevent
special treatment in `dired-do-shell-command'.

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*** Dired's v command now runs external viewers to view certain
types of files.  The variable `dired-view-command-alist' controls
what external viewers to use and when.

*** In Dired, the w command now copies the current line's file name
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into the kill ring.  With a zero prefix arg, copies absolute file names.
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** Dired-x:

*** Omitting files is now a minor mode, dired-omit-mode. The mode toggling
command is bound to M-o. A new command dired-mark-omitted, bound to M-O,
marks omitted files. The variable dired-omit-files-p is obsoleted, use the
mode toggling function instead.

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+++
** find-file-read-only visits multiple files in read-only mode,
when the file name contains wildcard characters.

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** find-alternate-file replaces the current file with multiple files,
when the file name contains wildcard characters.

** FFAP

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*** New ffap commands and keybindings: C-x C-r (`ffap-read-only'),
C-x C-v (`ffap-alternate-file'), C-x C-d (`ffap-list-directory'),
C-x 4 r (`ffap-read-only-other-window'), C-x 4 d (`ffap-dired-other-window'),
C-x 5 r (`ffap-read-only-other-frame'), C-x 5 d (`ffap-dired-other-frame').

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*** FFAP accepts wildcards in a file name by default.  C-x C-f passes
it to `find-file' with non-nil WILDCARDS argument, which visits
multiple files, and C-x d passes it to `dired'.

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** Info mode:
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*** A numeric prefix argument of `info' selects an Info buffer
with the number appended to the *info* buffer name.

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*** Regexp isearch (C-M-s and C-M-r) can search through multiple nodes.
Failed isearch wraps to the top/final node.

*** New search commands: `Info-search-case-sensitively' (bound to S),
`Info-search-backward', and `Info-search-next' which repeats the last
search without prompting for a new search string.

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*** New command `Info-history' (bound to L) displays a menu of visited nodes.

*** New command `Info-toc' (bound to T) creates a node with table of contents
from the tree structure of menus of the current Info file.

*** New command `info-apropos' searches the indices of the known
Info files on your system for a string, and builds a menu of the
possible matches.

*** New command `Info-copy-current-node-name' (bound to w) copies
the current Info node name into the kill ring.  With a zero prefix
arg, puts the node name inside the `info' function call.

*** New face `info-xref-visited' distinguishes visited nodes from unvisited
and a new option `Info-fontify-visited-nodes' to control this.

*** http and ftp links in Info are now operational: they look like cross
references and following them calls `browse-url'.

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*** Info now hides node names in menus and cross references by default.
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If you prefer the old behavior, you can set the new user option
`Info-hide-note-references' to nil.

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*** Images in Info pages are supported.
Info pages show embedded images, in Emacs frames with image support.
Info documentation that includes images, processed with makeinfo
version 4.7 or newer, compiles to Info pages with embedded images.

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*** The default value for `Info-scroll-prefer-subnodes' is now nil.

---
*** Info-index offers completion.

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** Support for the SQLite interpreter has been added to sql.el by calling
'sql-sqlite'.

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** BibTeX mode:
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*** The new command bibtex-url browses a URL for the BibTeX entry at
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point (bound to C-c C-l and mouse-2, RET on clickable fields).

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*** The new command bibtex-entry-update (bound to C-c C-u) updates
an existing BibTeX entry.
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*** New `bibtex-entry-format' option `required-fields', enabled by default.
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*** bibtex-maintain-sorted-entries can take values `plain',
`crossref', and `entry-class' which control the sorting scheme used
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for BibTeX entries.  `bibtex-sort-entry-class' controls the sorting
scheme `entry-class'.  TAB completion for reference keys and
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automatic detection of duplicates does not require anymore that
bibtex-maintain-sorted-entries is non-nil.

*** If the new variable bibtex-parse-keys-fast is non-nil,
use fast but simplified algorithm for parsing BibTeX keys.

*** If the new variable bibtex-autoadd-commas is non-nil,
automatically add missing commas at end of BibTeX fields.

*** The new variable bibtex-autofill-types contains a list of entry
types for which fields are filled automatically (if possible).

*** The new command bibtex-complete completes word fragment before
point according to context (bound to M-tab).

*** The new commands bibtex-find-entry and bibtex-find-crossref
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locate entries and crossref'd entries (bound to C-c C-s and C-c C-x).
Crossref fields are clickable (bound to mouse-2, RET).
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*** In BibTeX mode the command fill-paragraph (bound to M-q) fills
individual fields of a BibTeX entry.
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*** The new variables bibtex-files and bibtex-file-path define a set
of BibTeX files that are searched for entry keys.
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*** The new command bibtex-validate-globally checks for duplicate keys
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in multiple BibTeX files.

*** The new command bibtex-copy-summary-as-kill pushes summary
of BibTeX entry to kill ring (bound to C-c C-t).

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** When display margins are present in a window, the fringes are now
displayed between the margins and the buffer's text area, rather than
at the edges of the window.

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** A window may now have individual fringe and scroll-bar settings,
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in addition to the individual display margin settings.

Such individual settings are now preserved when windows are split
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horizontally or vertically, a saved window configuration is restored,
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or when the frame is resized.

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** New functions frame-current-scroll-bars and window-current-scroll-bars.

These functions return the current locations of the vertical and
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horizontal scroll bars in a frame or window.
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---
** Emacs now supports drag and drop for X.  Dropping a file on a window
   opens it, dropping text inserts the text.  Dropping a file on a dired
   buffer copies or moves the file to that directory.

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** Under X, mouse-wheel-mode is turned on by default.

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** The X resource useXIM can be used to turn off use of XIM, which may
speed up Emacs with slow networking to the X server.

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If the configure option `--without-xim' was used to turn off use of
XIM by default, the X resource useXIM can be used to turn it on.

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** `undo-only' does an undo which does not redo any previous undo.
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** `uniquify-strip-common-suffix' tells uniquify to prefer
`file|dir1' and `file|dir2' to `file|dir1/subdir' and `file|dir2/subdir'.

** If the user visits a file larger than `large-file-warning-threshold',
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Emacs prompts her for confirmation.
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** A UTF-7 coding system is available in the library `utf-7'.

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** GUD mode has its own tool bar for controlling execution of the inferior
and other common debugger commands.

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** recentf changes.

The recent file list is now automatically cleanup when recentf mode is
enabled.  The new option `recentf-auto-cleanup' controls when to do
automatic cleanup.

With the more advanced option: `recentf-filename-handler', you can
specify a function that transforms filenames handled by recentf.  For
example, if set to `file-truename', the same file will not be in the
recent list with different symbolic links.

To follow naming convention, `recentf-keep-non-readable-files-flag'
and `recentf-menu-append-commands-flag' respectively replace the
misnamed options `recentf-keep-non-readable-files-p' and
`recentf-menu-append-commands-p'.  The old names remain available as
aliases, but have been marked obsolete.

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** The default for the paper size (variable ps-paper-type) is taken
from the locale.
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** Init file changes

You can now put the init files .emacs and .emacs_SHELL under
~/.emacs.d or directly under ~.  Emacs will find them in either place.

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** partial-completion-mode now does partial completion on directory names.

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** skeleton.el now supports using - to mark the skeleton-point without
   interregion interaction.  @ has reverted to only setting
   skeleton-positions and no longer sets skeleton-point.  Skeletons
   which used @ to mark skeleton-point independent of _ should now use -
   instead.  The updated skeleton-insert docstring explains these new
   features along with other details of skeleton construction.

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** MH-E changes.

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Upgraded to MH-E version 7.82. There have been major changes since
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version 5.0.2; see MH-E-NEWS for details.

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** The `emacsclient' command understands the options `--eval' and
`--display' which tell Emacs respectively to evaluate the given elisp
expression and to use the given display when visiting files.

** User option `server-mode' can be used to start a server process.
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** The mode line position information now comes before the major mode.
When the file is maintained under version control, that information
appears between the position information and the major mode.
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** C-x s (save-some-buffers) now offers an option `d' to diff a buffer
against its file, so you can see what changes you would be saving.

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+++
** You can now customize the use of window fringes.  To control this
for all frames, use M-x fringe-mode or the Show/Hide submenu of the
top-level Options menu, or customize the `fringe-mode' variable.  To
control this for a specific frame, use the command M-x
set-fringe-style.
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** There is a new user option `mail-default-directory' that allows you
to specify the value of `default-directory' for mail buffers.  This
directory is used for auto-save files of mail buffers.  It defaults to
"~/".

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** When you are root, and you visit a file whose modes specify
read-only, the Emacs buffer is now read-only too.  Type C-x C-q if you
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want to make the buffer writable.  (As root, you can in fact alter the
file.)
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** The new command `revert-buffer-with-coding-system' (C-x RET r)
revisits the current file using a coding system that you specify.

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** The new command `recode-file-name' changes the encoding of the name
of a file.

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---
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** `ps-print' can now print characters from the mule-unicode charsets.
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Printing text with characters from the mule-unicode-* sets works with
ps-print, provided that you have installed the appropriate BDF fonts.
See the file INSTALL for URLs where you can find these fonts.

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---
** The new options `buffers-menu-show-directories' and
`buffers-menu-show-status' let you control how buffers are displayed
in the menu dropped down when you click "Buffers" from the menu bar.

`buffers-menu-show-directories' controls whether the menu displays
leading directories as part of the file name visited by the buffer.
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If its value is `unless-uniquify', the default, directories are
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shown unless uniquify-buffer-name-style' is non-nil.  The value of nil
and t turn the display of directories off and on, respectively.

`buffers-menu-show-status' controls whether the Buffers menu includes
the modified and read-only status of the buffers.  By default it is
t, and the status is shown.

Setting these variables directly does not take effect until next time
the Buffers menu is regenerated.

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** The commands M-x customize-face and M-x customize-face-other-window
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now look at the character after point.  If a face or faces are
specified for that character, the commands by default customize those
faces.
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** New language environments: French, Ukrainian, Tajik,
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Bulgarian, Belarusian, Ukrainian, UTF-8, Windows-1255, Welsh, Latin-6,
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Latin-7, Lithuanian, Latvian, Swedish, Slovenian, Croatian, Georgian,
Italian, Russian, Malayalam, Tamil, Russian, Chinese-EUC-TW.  (Set up
automatically according to the locale.)
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** Indian support has been updated.
The in-is13194 coding system is now Unicode-based.  CDAC fonts are
assumed.  There is a framework for supporting various
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Indian scripts, but currently only Devanagari, Malayalam and Tamil are
supported.
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---
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** New input methods: latin-alt-postfix, latin-postfix, latin-prefix,
ukrainian-computer, belarusian, bulgarian-bds, russian-computer,
vietnamese-telex, lithuanian-numeric, lithuanian-keyboard,
latvian-keyboard, welsh, georgian, rfc1345, ucs, sgml,
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bulgarian-phonetic, dutch, slovenian, croatian, malayalam-inscript,
tamil-inscript.
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---
** A new coding system `euc-tw' has been added for traditional Chinese
in CNS encoding; it accepts both Big 5 and CNS as input; on saving,
Big 5 is then converted to CNS.

---
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** Many new coding systems are available by loading the `code-pages'
library.  These include complete versions of most of those in
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codepage.el, based on Unicode mappings.  `codepage-setup' is now
obsolete and is used only in the MS-DOS port of Emacs.  windows-1252
and windows-1251 are preloaded since the former is so common and the
latter is used by GNU locales.
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** The utf-8/16 coding systems have been enhanced.
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By default, untranslatable utf-8 sequences are simply composed into
single quasi-characters.  User option `utf-translate-cjk-mode' (it is
turned on by default) arranges to translate many utf-8 CJK character
sequences into real Emacs characters in a similar way to the Mule-UCS
system.  As this loads a fairly big data on demand, people who are not
interested in CJK characters may want to customize it to nil.
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You can augment/amend the CJK translation via hash tables
`ucs-mule-cjk-to-unicode' and `ucs-unicode-to-mule-cjk'.  The utf-8
coding system now also encodes characters from most of Emacs's
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one-dimensional internal charsets, specifically the ISO-8859 ones.
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The utf-16 coding system is affected similarly.
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** New variable `utf-translate-cjk-unicode-range' controls which
Unicode characters to translate in `utf-translate-cjk-mode'.

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** iso-10646-1 (`Unicode') fonts can be used to display any range of
characters encodable by the utf-8 coding system.  Just specify the
fontset appropriately.
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** New command `ucs-insert' inserts a character specified by its
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unicode.
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** Limited support for character `unification' has been added.
Emacs now knows how to translate between different representations of
the same characters in various Emacs charsets according to standard
Unicode mappings.  This applies mainly to characters in the ISO 8859
sets plus some other 8-bit sets, but can be extended.  For instance,
translation works amongst the Emacs ...-iso8859-... charsets and the
mule-unicode-... ones.

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By default this translation happens automatically on encoding.
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Self-inserting characters are translated to make the input conformant
with the encoding of the buffer in which it's being used, where
possible.
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You can force a more complete unification with the user option
unify-8859-on-decoding-mode.  That maps all the Latin-N character sets
into Unicode characters (from the latin-iso8859-1 and
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mule-unicode-0100-24ff charsets) on decoding.  Note that this mode
will often effectively clobber data with an iso-2022 encoding.
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** There is support for decoding Greek and Cyrillic characters into
either Unicode (the mule-unicode charsets) or the iso-8859 charsets,
when possible.  The latter are more space-efficient.  This is
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controlled by user option utf-fragment-on-decoding.
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** The new command `set-file-name-coding-system' (C-x RET F) sets
coding system for encoding and decoding file names.  A new menu item
(Options->Mule->Set Coding Systems->For File Name) invokes this
command.

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** The scrollbar under LessTif or Motif has a smoother drag-scrolling.
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On the other hand, the size of the thumb does not represent the actual
amount of text shown any more (only a crude approximation of it).

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** The pop up menus for Lucid now stay up if you do a fast click and can
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be navigated with the arrow keys (like Gtk+, Mac and W32).
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** Dialogs for Lucid/Athena and Lesstif/Motif now pops down when pressing
ESC, like they do for Gtk+, Mac and W32.

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** The menu item "Open File..." has been split into two items, "New File..."
and "Open File...".  "Open File..." now opens only existing files.  This is
to support existing GUI file selection dialogs better.
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** The file selection dialog for Gtk+, Mac, W32 and Motif/Lesstif can be
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disabled by customizing the variable `use-file-dialog'.

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** For Gtk+ version 2.4, you can make Emacs use the old file dialog
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by setting the variable `x-use-old-gtk-file-dialog' to t.  Default is to use
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the new dialog.

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** Emacs can produce an underscore-like (horizontal bar) cursor.
The underscore cursor is set by putting `(cursor-type . hbar)' in
default-frame-alist.  It supports variable heights, like the `bar'
cursor does.

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** On X, MS Windows, and Mac OS, the blinking cursor's "off" state is
now controlled by the variable `blink-cursor-alist'.

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** Filesets are collections of files.  You can define a fileset in
various ways, such as based on a directory tree or based on
program files that include other program files.

Once you have defined a fileset, you can perform various operations on
all the files in it, such as visiting them or searching and replacing
in them.

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---
** PO translation files are decoded according to their MIME headers
when Emacs visits them.

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** The game `mpuz' is enhanced.

`mpuz' now allows the 2nd factor not to have two identical digits.  By
default, all trivial operations involving whole lines are performed
automatically.  The game uses faces for better visual feedback.

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** The new variable `x-select-request-type' controls how Emacs
requests X selection.  The default value is nil, which means that
Emacs requests X selection with types COMPOUND_TEXT and UTF8_STRING,
and use the more appropriately result.

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** The parameters of automatic hscrolling can now be customized.
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The variable `hscroll-margin' determines how many columns away from
the window edge point is allowed to get before automatic hscrolling
will horizontally scroll the window.  The default value is 5.
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The variable `hscroll-step' determines how many columns automatic
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hscrolling scrolls the window when point gets too close to the
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window edge.  If its value is zero, the default, Emacs scrolls the
window so as to center point.  If its value is an integer, it says how
many columns to scroll.  If the value is a floating-point number, it
gives the fraction of the window's width to scroll the window.

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The variable `automatic-hscrolling' was renamed to
`auto-hscroll-mode'.  The old name is still available as an alias.

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** TeX modes:
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*** C-c C-c prompts for a command to run, and tries to offer a good default.
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*** The user option `tex-start-options-string' has been replaced
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by two new user options: `tex-start-options', which should hold
command-line options to feed to TeX, and `tex-start-commands' which should hold
TeX commands to use at startup.
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*** verbatim environments are now highlighted in courier by font-lock
and super/sub-scripts are made into super/sub-scripts.
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*** New major mode doctex-mode for *.dtx files.

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** New display feature: focus follows the mouse from one Emacs window
to another, even within a frame.  If you set the variable
mouse-autoselect-window to non-nil value, moving the mouse to a
different Emacs window will select that window (minibuffer window can
be selected only when it is active).  The default is nil, so that this
feature is not enabled.
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** On X, when the window manager requires that you click on a frame to
select it (give it focus), the selected window and cursor position
normally changes according to the mouse click position.  If you set
the variable x-mouse-click-focus-ignore-position to t, the selected
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window and cursor position do not change when you click on a frame
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to give it focus.

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** The new command `describe-char' (C-u C-x =) pops up a buffer with
description various information about a character, including its
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encodings and syntax, its text properties, how to input, overlays, and
widgets at point.  You can get more information about some of them, by
clicking on mouse-sensitive areas or moving there and pressing RET.
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** The new command `multi-occur' is just like `occur', except it can
search multiple buffers.  There is also a new command
`multi-occur-by-filename-regexp' which allows you to specify the
buffers to search by their filename.  Internally, Occur mode has been
rewritten, and now uses font-lock, among other changes.

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** The default values of paragraph-start and indent-line-function have
been changed to reflect those used in Text mode rather than those used
in Indented-Text mode.

** New user option `query-replace-skip-read-only': when non-nil,
`query-replace' and related functions simply ignore
a match if part of it has a read-only property.

** When used interactively, the commands `query-replace-regexp' and
`replace-regexp' allow \,expr to be used in a replacement string,
where expr is an arbitrary Lisp expression evaluated at replacement
time.  In many cases, this will be more convenient than using
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`query-replace-regexp-eval'.  `\#' in a replacement string now refers
to the count of replacements already made by the replacement command.
All regular expression replacement commands now allow `\?' in the
replacement string to specify a position where the replacement string
can be edited for each replacement.
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** query-replace uses isearch lazy highlighting when the new user option
`query-replace-lazy-highlight' is non-nil.

** The current match in query-replace is highlighted in new face
`query-replace' which by default inherits from isearch face.
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** Emacs normally highlights mouse sensitive text whenever the mouse
is over the text.  By setting the new variable `mouse-highlight', you
can optionally enable mouse highlighting only after you move the
mouse, so that highlighting disappears when you press a key.  You can
also disable mouse highlighting.
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** You can now customize if selecting a region by dragging the mouse
shall not copy the selected text to the kill-ring by setting the new
variable mouse-drag-copy-region to nil.

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** font-lock: in modes like C and Lisp where the fontification assumes that
an open-paren in column 0 is always outside of any string or comment,
font-lock now highlights any such open-paren-in-column-zero in bold-red
if it is inside a string or a comment, to indicate that it can cause
trouble with fontification and/or indentation.

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** There's a new face `minibuffer-prompt'.
Emacs adds this face to the list of text properties stored in the
variable `minibuffer-prompt-properties', which is used to display the
prompt string.

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** The new face `mode-line-inactive' is used to display the mode line
of non-selected windows.  The `mode-line' face is now used to display
the mode line of the currently selected window.

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The new variable `mode-line-in-non-selected-windows' controls whether
the `mode-line-inactive' face is used.

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---
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** A menu item "Show/Hide" was added to the top-level menu "Options".
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This menu allows you to turn various display features on and off (such
as the fringes, the tool bar, the speedbar, and the menu bar itself).
You can also move the vertical scroll bar to either side here or turn
it off completely.  There is also a menu-item to toggle displaying of
current date and time, current line and column number in the
mode-line.
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** Speedbar has moved from the "Tools" top level menu to "Show/Hide".

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** Emacs can now indicate in the mode-line the presence of new e-mail
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in a directory or in a file.  See the documentation of the user option
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`display-time-mail-directory'.
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** LDAP support now defaults to ldapsearch from OpenLDAP version 2.

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** You can now disable pc-selection-mode after enabling it.
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M-x pc-selection-mode behaves like a proper minor mode, and with no
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argument it toggles the mode.

Turning off PC-Selection mode restores the global key bindings
that were replaced by turning on the mode.

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** Emacs now displays a splash screen by default even if command-line
arguments were given.  The new command-line option --no-splash
disables the splash screen; see also the variable
`inhibit-startup-message' (which is also aliased as
`inhibit-splash-screen').

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** Changes in support of colors on character terminals

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*** The new command-line option --color=MODE lets you specify a standard
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mode for a tty color support.  It is meant to be used on character
terminals whose capabilities are not set correctly in the terminal
database, or with terminal emulators which support colors, but don't
set the TERM environment variable to a name of a color-capable
terminal.  "emacs --color" uses the same color commands as GNU `ls'
when invoked with "ls --color", so if your terminal can support colors
in "ls --color", it will support "emacs --color" as well.  See the
user manual for the possible values of the MODE parameter.

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*** Emacs now supports several character terminals which provide more
than 8 colors.  For example, for `xterm', 16-color, 88-color, and
256-color modes are supported.  Emacs automatically notes at startup
the extended number of colors, and defines the appropriate entries for
all of these colors.

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*** Emacs now uses the full range of available colors for the default
faces when running on a color terminal, including 16-, 88-, and
256-color xterms.  This means that when you run "emacs -nw" on an
88-color or 256-color xterm, you will see essentially the same face
colors as on X.

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*** There's a new support for colors on `rxvt' terminal emulator.

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** Emacs can now be invoked in full-screen mode on a windowed display.

When Emacs is invoked on a window system, the new command-line options
`--fullwidth', `--fullheight', and `--fullscreen' produce a frame
whose width, height, or both width and height take up the entire
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screen size.  (For now, this does not work with some window managers.)
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---
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** Emacs now tries to set up buffer coding systems for HTML/XML files
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automatically.
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** The new command `comint-insert-previous-argument' in comint-derived
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modes (shell-mode etc) inserts arguments from previous command lines,
like bash's `ESC .' binding.  It is bound by default to `C-c .', but
otherwise behaves quite similarly to the bash version.

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** Changes in C-h bindings:

C-h e displays the *Messages* buffer.

C-h followed by a control character is used for displaying files
    that do not change:

C-h C-f displays the FAQ.
C-h C-e displays the PROBLEMS file.

The info-search bindings on C-h C-f, C-h C-k and C-h C-i
have been moved to C-h F, C-h K and C-h S.

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C-h c, C-h k, C-h w, and C-h f now handle remapped interactive commands.

- C-h c and C-h k report the actual command (after possible remapping)
  run by the key sequence.

- C-h w and C-h f on a command which has been remapped now report the
  command it is remapped to, and the keys which can be used to run
  that command.

For example, if C-k is bound to kill-line, and kill-line is remapped
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to new-kill-line, these commands now report:
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- C-h c and C-h k C-k reports:
  C-k runs the command new-kill-line

- C-h w and C-h f kill-line reports:
  kill-line is remapped to new-kill-line which is on C-k, <deleteline>

- C-h w and C-h f new-kill-line reports:
  new-kill-line is on C-k

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** Vertical scrolling is now possible within incremental search.
To enable this feature, customize the new user option
`isearch-allow-scroll'.  User written commands which satisfy stringent
constraints can be marked as "scrolling commands".  See the Emacs manual
for details.

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** C-w in incremental search now grabs either a character or a word,
making the decision in a heuristic way.  This new job is done by the
command `isearch-yank-word-or-char'.  To restore the old behavior,
bind C-w to `isearch-yank-word' in `isearch-mode-map'.

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** C-y in incremental search now grabs the next line if point is already
at the end of a line.

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** C-M-w deletes and C-M-y grabs a character in isearch mode.
Another method to grab a character is to enter the minibuffer by `M-e'
and to type `C-f' at the end of the search string in the minibuffer.

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** M-% typed in isearch mode invokes `query-replace' or
`query-replace-regexp' (depending on search mode) with the current
search string used as the string to replace.
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** Isearch no longer adds `isearch-resume' commands to the command
history by default.  To enable this feature, customize the new
user option `isearch-resume-in-command-history'.
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** New user option `history-delete-duplicates'.
If set to t when adding a new history element, all previous identical
elements are deleted.

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** Yanking text now discards certain text properties that can
be inconvenient when you did not expect them.  The variable
`yank-excluded-properties' specifies which ones.  Insertion
of register contents and rectangles also discards these properties.

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** Occur, Info, and comint-derived modes now support using
M-x font-lock-mode to toggle fontification.  The variable
`Info-fontify' is no longer applicable; to disable fontification,
remove `turn-on-font-lock' from `Info-mode-hook'.

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** M-x grep now tries to avoid appending `/dev/null' to the command line
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by using GNU grep `-H' option instead.  M-x grep automatically
detects whether this is possible or not the first time it is invoked.