code.delx.au - gnu-emacs/blob - etc/NEWS

   1 GNU Emacs NEWS -- history of user-visible changes.
   2
   3 Copyright (C) 2007 Free Software Foundation, Inc.
   4 See the end of the file for license conditions.
   5
   6 Please send Emacs bug reports to emacs-pretest-bug@gnu.org.
   7 If possible, use M-x report-emacs-bug.
   8
   9 This file is about changes in Emacs version 23.
  10
  11 See files NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, and NEWS.1-17
  12 for changes in older Emacs versions.
  13
  14 You can narrow news to a specific version by calling `view-emacs-news'
  15 with a prefix argument or by typing C-u C-h C-n.
  16
  17 Temporary note:
  18  +++ indicates that the appropriate manual has already been updated.
  19  --- means no change in the manuals is called for.
  20 When you add a new item, please add it without either +++ or ---
  21 so we will look at it and add it to the manual.
  22
  23 \f
  24 * About external Lisp packages
  25
  26 \f
  27 * Installation Changes in Emacs 23.1
  28
  29 ** The default X toolkit is now Gtk+, rather than Lucid.
  30
  31 ** configure now checks for libgif before libungif when searching for
  32 a GIF library.
  33
  34 \f
  35 * Changes in Emacs 23.1
  36
  37 ** If you set find-file-confirm-nonexistent-file to t, then C-x C-f
  38 requires confirmation before opening a non-existent file.
  39
  40 ** If the gpm mouse server is running and t-mouse-mode enabled, Emacs uses a
  41 Unix socket in a GNU/Linux console to talk to server, rather than faking events
  42 using the client program mev.  This C level approach provides mouse
  43 highlighting, and help echoing in the minibuffer.
  44
  45 ** The new variable next-error-recenter specifies how next-error should
  46 recenter the visited source file.  Its value can be a number (for example,
  47 0 for top line, -1 for bottom line), or nil for no recentering.
  48
  49 ** The mode-line display a `@' if the default-directory for the current buffer
  50 is on a remote machine, or a hyphen otherwise.
  51 ** The new command balance-window-area balances windows both vertically
  52 and horizontally.
  53
  54 ** The new command close-display-connection can be used to close a connection
  55 to a remote display, e.g. because the display is about to become unreachable.
  56 \f
  57 * Startup Changes in Emacs 23.1
  58
  59 \f
  60 * Incompatible Editing Changes in Emacs 23.1
  61
  62 \f
  63 * Editing Changes in Emacs 23.1
  64
  65 ** New command kill-matching-buffers kills buffers whose name matches a regexp.
  66
  67 ** Minibuffer changes:
  68
  69 *** isearch started in the minibuffer searches in the minibuffer history.
  70 Reverse isearch commands (C-r, C-M-r) search in previous minibuffer
  71 history elements, and forward isearch commands (C-s, C-M-s) search in
  72 next history elements.  When the reverse search reaches the first history
  73 element, it wraps to the last history element, and the forward search
  74 wraps to the first history element.  When the search is terminated, the
  75 history element containing the search string becomes the current.
  76
  77 \f
  78 * New Modes and Packages in Emacs 23.1
  79
  80 ** bibtex-style-mode helps you write BibTeX's *.bst files.
  81
  82 ** minibuffer-indicate-depth-mode shows the minibuffer depth in the prompt.
  83
  84 \f
  85 * Changes in Specialized Modes and Packages in Emacs 23.1
  86
  87 ** compilation-auto-jump-to-first-error tells `compile' to jump to
  88 the first error encountered during compilations.
  89
  90 ** In the `copyright' package, you can specify your copyright holders's names.
  91 Only copyright lines with holders matching copyright-names-regexp will be
  92 considered for update.
  93
  94 ** VC
  95 *** Clicking on the VC mode-line entry now pops the VC menu.
  96
  97 *** The VC mode-line entry now has a tooltip.
  98
  99 *** VC has some support for Bazaar (bzr).
 100
 101 ** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs.
 102
 103 ** BibTeX mode:
 104
 105 *** New `bibtex-entry-format' options `whitespace', `braces', and
 106 `string', disabled by default.
 107
 108 *** New variable `bibtex-cite-matcher-alist' contains rules to
 109 identify cited keys in BibTeX entries, used by `bibtex-find-crossref.
 110
 111 *** Command `bibtex-url' now allows multiple URLs per entry.
 112
 113 +++
 114 ** Tramp
 115
 116 *** New connection methods.
 117 The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have
 118 been introduced.  There are also new so-called gateway methods
 119 "tunnel" and "socks".
 120
 121 *** Multihop syntax has been removed.
 122 The pseudo-method "multi" has been removed.  Instead of, multi hops
 123 can be specified by the new variable `tramp-default-proxies-alist'.
 124
 125 *** More default settings.
 126 Default values can be set via the variables `tramp-default-user',
 127 `tramp-default-user-alist' and `tramp-default-host'.
 128
 129 *** Connection information is cached.
 130 In order to reduce connection setup, information about used
 131 connections are kept persistent in a file.  The name of this file is
 132 defined in the variable `tramp-persistency-file-name'.
 133
 134 *** Control of remote processes.
 135 Running processes on a remote host can be controlled by settings in
 136 `tramp-remote-path' and `tramp-remote-process-environment'.
 137
 138 *** Success of remote copy is checked.
 139 When the variable `file-precious-flag' is set, the success of a remote
 140 file copy is checked via the file's checksum.
 141
 142 ** comint-mode uses `start-file-process' now (see Lisp Changes).
 143 If `default-directory' is a remote file name, subprocesses are started
 144 on the corresponding remote system.
 145
 146 ** C-x C-q in dired-mode now runs the command wdired-change-to-wdired-mode,
 147 and C-x C-q in wdired-mode exits it with asking a question about
 148 saving changes.
 149 \f
 150 * Changes in Emacs 23.1 on non-free operating systems
 151
 152 ---
 153 ** IPv6 is supported on MS-Windows.
 154 Emacs now supports IPv6 on Windows XP and later, and earlier versions
 155 of Windows with third party IPv6 stacks installed. Previously IPv6 was
 156 supported on other platforms, but not on Windows due to using the winsock
 157 1.1 header file, even though Emacs was linking to the winsock 2 library.
 158
 159 \f
 160 * Incompatible Lisp Changes in Emacs 23.1
 161
 162 +++
 163 ** The function `dired-call-process' has been removed.
 164
 165 \f
 166 * Lisp Changes in Emacs 23.1
 167
 168 ** Non-breaking space now acts as whitespace.
 169
 170 +++
 171 ** In `condition-case', a handler can specify "let the debugger run first".
 172
 173 You do this by writing `debug' in the list of conditions to be handled,
 174 like this:
 175
 176     (condition-case nil
 177         (foo bar)
 178       ((debug error) nil))
 179
 180 ** The `require-match' argument to `completing-read' accepts a new value
 181 `confirm-only'.
 182
 183 +++
 184 ** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly.
 185
 186 +++
 187 ** New variable `user-emacs-directory'.
 188 Use this instead of "~/.emacs.d".
 189
 190 +++
 191 ** The new function `image-refresh' refreshes all images associated
 192 with a given image specification.
 193
 194 +++
 195 ** The new function `start-file-process is similar to `start-process',
 196 but obeys file handlers.  The file handler is chosen based on
 197 `default-directory'.  The functions `start-file-process-shell-command'
 198 and `process-file-shell-command' are also new; they call internally
 199 `start-file-process and `process-file', respectively.
 200
 201 +++
 202 ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED.
 203 IDENTIFICATION specifies which part of the remote identifier has to be
 204 returned.  With CONNECTED passed non-nil, it is checked whether a
 205 remote connection has been established already.
 206
 207 ** The two new functions `looking-at-p' and `string-match-p' can do
 208 the same matching as `looking-at' and `string-match' without changing
 209 the match data.
 210
 211 ** The interactive-form of a function can be added post-facto via the
 212 `interactive-form' symbol property.  Mostly useful to add complex interactive
 213 forms to subroutines.
 214 \f
 215 * New Packages for Lisp Programming in Emacs 23.1
 216
 217 \f
 218 ----------------------------------------------------------------------
 219 This file is part of GNU Emacs.
 220
 221 GNU Emacs is free software; you can redistribute it and/or modify
 222 it under the terms of the GNU General Public License as published by
 223 the Free Software Foundation; either version 3, or (at your option)
 224 any later version.
 225
 226 GNU Emacs is distributed in the hope that it will be useful,
 227 but WITHOUT ANY WARRANTY; without even the implied warranty of
 228 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 229 GNU General Public License for more details.
 230
 231 You should have received a copy of the GNU General Public License
 232 along with GNU Emacs; see the file COPYING.  If not, write to the
 233 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 234 Boston, MA 02110-1301, USA.
 235
 236 \f
 237 Local variables:
 238 mode: outline
 239 paragraph-separate: "[  \f]*$"
 240 end:
 241
 242 arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2