emacs/etc/NEWS

GNU Emacs NEWS -- history of user-visible changes.

Copyright (C) 2007 Free Software Foundation, Inc.
See the end of the file for license conditions.

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

This file is about changes in Emacs version 23.

See files NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, and NEWS.1-17
for changes in older Emacs versions.

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.

Temporary note:
 +++ indicates that the appropriate manual has already been updated.
 --- means no change in the manuals is called for.
When you add a new item, please add it without either +++ or ---
so we will look at it and add it to the manual.


* About external Lisp packages


* Installation Changes in Emacs 23.1

** The default X toolkit is now Gtk+, rather than Lucid.

** configure now checks for libgif before libungif when searching for
a GIF library.


* Changes in Emacs 23.1

** If you set find-file-confirm-nonexistent-file to t, then C-x C-f
requires confirmation before opening a non-existent file.

** If the gpm mouse server is running and t-mouse-mode enabled, Emacs uses a
Unix socket in a GNU/Linux console to talk to server, rather than faking events
using the client program mev.  This C level approach provides mouse
highlighting, and help echoing in the minibuffer.

** The new variable next-error-recenter specifies how next-error should
recenter the visited source file.  Its value can be a number (for example,
0 for top line, -1 for bottom line), or nil for no recentering.


* Startup Changes in Emacs 23.1


* Incompatible Editing Changes in Emacs 23.1


* Editing Changes in Emacs 23.1

** New command kill-matching-buffers kills buffers whose name matches a regexp.

** Bookmark commands live under prefix C-x p now, instead of C-x r.  Some of
   the individual bindings have changed; do C-x p C-h for details.


* New Modes and Packages in Emacs 23.1

** css-mode to edit Cascading Style Sheets.

** bibtex-style-mode helps you write BibTeX's *.bst files.

** vera-mode to edit Vera files.

** socks.el (which had been part of W3) is now part of Emacs.

** minibuffer-indicate-depth-mode shows the minibuffer depth in the prompt.


* Changes in Specialized Modes and Packages in Emacs 23.1

** compilation-auto-jump-to-first-error tells `compile' to jump to
the first error encountered during compilations.

** In the `copyright' package, you can specify your copyright holders's names.
Only copyright lines with holders matching copyright-names-regexp will be
considered for update.

** VC
*** VC backends can provide completion of revision names.
*** VC has some support for Bazaar (bzr).

*** VC has some support for Mercurial (hg).

** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs.

** BibTeX mode:

*** New `bibtex-entry-format' options `whitespace', `braces', and
`string', disabled by default.

*** New variable `bibtex-cite-matcher-alist' contains rules to
identify cited keys in BibTeX entries, used by `bibtex-find-crossref.

*** Command `bibtex-url' now allows multiple URLs per entry.

+++
** Tramp

*** New connection methods.
The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have
been introduced.  There are also new so-called gateway methods
"tunnel" and "socks".

*** Multihop syntax has been removed.
The pseudo-method "multi" has been removed.  Instead of, multi hops
can be specified by the new variable `tramp-default-proxies-alist'.

*** More default settings.
Default values can be set via the variables `tramp-default-user',
`tramp-default-user-alist' and `tramp-default-host'.

*** Connection information is cached.
In order to reduce connection setup, information about used
connections are kept persistent in a file.  The name of this file is
defined in the variable `tramp-persistency-file-name'.

*** Control of remote processes.
Running processes on a remote host can be controlled by settings in
`tramp-remote-path' and `tramp-remote-process-environment'.

*** Success of remote copy is checked.
When the variable `file-precious-flag' is set, the success of a remote
file copy is checked via the file's checksum.

** comint-mode uses `start-file-process' now (see Lisp Changes).
If `default-directory' is a remote file name, subprocesses are started
on the corresponding remote system.


* Changes in Emacs 23.1 on non-free operating systems


* Incompatible Lisp Changes in Emacs 23.1

+++
** The function `dired-call-process' has been removed.


* Lisp Changes in Emacs 23.1

** The `require-match' argument to `completing-read' accepts a new value
`confirm-only'.

+++
** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly.

+++
** New variable `user-emacs-directory'.
Use this instead of "~/.emacs.d".

+++
** The new function `image-refresh' refreshes all images associated
with a given image specification.

+++
** The new function `start-file-process is similar to `start-process',
but obeys file handlers.  The file handler is chosen based on
`default-directory'.

+++
** `file-remote-p' has a new optional parameter CONNECTED.
With this paramter passed non-nil, it is checked whether a remote
connection has been established already.

** The two new functions `looking-at-p' and `string-match-p' can do
the same matching as `looking-at' and `string-match' without changing
the match data.

* New Packages for Lisp Programming in Emacs 23.1


----------------------------------------------------------------------
This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.


Local variables:
mode: outline
paragraph-separate: "[ 	]*$"
end:

arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2