-GNU Emacs NEWS -- history of user-visible changes.
-
-Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
-See the end of the file for license conditions.
-
-Please send Emacs bug reports to bug-gnu-emacs@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.
-
-\f
-* Installation Changes in Emacs 23.3
-
-** New configure option --with-crt-dir specifies the location of your
-crt*.o files, if they are in a non-standard location. This is only
-used on x86-64 and s390x GNU/Linux architectures.
-
-** The MS-Windows build prefers libpng version 1.14 or later.
-Versions of libpng before 1.14 had security issues, so we now
-recommend to use version 1.14 or later. Precompiled Windows binaries
-require version 1.14 or later. See README.W32 and nt/INSTALL for
-details and pointers to URLs where the latest libpng can be
-downloaded.
-
-* Changes in Emacs 23.3
-
-** The last-resort backup file `%backup%~' is now written to
-`user-emacs-directory', instead of the user's home directory.
-
-** If Emacs creates `user-emacs-directory', that directory's
-permissions are now set to rwx------, ignoring the umask.
-
-\f
-* Changes in Specialized Modes and Packages in Emacs 23.3
-
-** Calendar and diary
-
-*** The appt-add command takes an optional argument, the warning time.
-This can be used in place of the default appt-message-warning-time.
-
-** Python mode
-
-*** You can allow inferior Python processes to load modules from the
-current directory by setting `python-remove-cwd-from-path' to nil.
-
-** Rmail
-
-*** The default value of `rmail-enable-mime' is now t. Rmail decodes
-MIME contents automatically. You can customize the variable
-`rmail-enable-mime' back to `nil' to disable this automatic MIME
-decoding.
-
-*** The command `rmail-mime' change the displaying of a MIME message
-between decoded presentation form and raw data if `rmail-enable-mime'
-is non-nil. And, with prefix argument, it change only the displaying
-of the MIME entity at point.
-
-*** The new command `rmail-mime-next-item' (bound to TAB) moves point
-to the next item of MIME message.
-
-*** The new command `rmail-mime-previous-item' (bound to backtab) moves
-point to the previous item of MIME message.
-
-*** The new command `rmail-mime-toggle-hidden' (RET) hide or show the
-body of the MIME entity at point.
-
-** VC and related modes
-
-*** New VC command `vc-log-incoming', bound to `C-x v I'.
-This shows a log of changes to be received with a pull operation.
-For Git, this runs "git fetch" to make the necessary data available
-locally; this requires version 1.7 or newer.
-
-*** New VC command `vc-log-outgoing', bound to `C-x v O'.
-This shows a log of changes to be sent in the next commit.
-
-*** New VC command vc-find-conflicted-file.
-
-*** The 'g' key in VC diff, log, log-incoming and log-outgoing buffers
-reruns the corresponding VC command to compute an up to date version
-of the buffer.
-
-*** vc-dir for Bzr supports viewing shelve contents and shelving snapshots.
-
-*** Special markup can be added to log-edit buffers.
-You can add headers specifying additional information to be supplied
-to the version control system. For example:
-
- Author: J. R. Hacker <jrh@example.com>
- Fixes: 4204
- Actual text of log entry...
-
-Bazaar recognizes the headers "Author", "Date" and "Fixes".
-Git, Mercurial, and Monotone recognize "Author" and "Date".
-Any unknown header is left as is in the message, so it is not lost.
-
-** Obsolete packages
-
-*** lmenu.el and cl-compat.el are now obsolete.
-
-\f
-* New Modes and Packages in Emacs 23.3
-
-** smie.el is a generic navigation and indentation engine.
-It takes a simple BNF description of the grammar, and provides both
-sexp-style navigation (jumping over begin..end pairs) as well as
-indentation, which can be adjusted via ad-hoc indentation rules.
-
-\f
-* Incompatible Lisp Changes in Emacs 23.3
-
-** posn-col-row now excludes the header line from the row count
-If the frame has a header line, posn-col-row will count row numbers
-starting from the first line of text below the header line.
-
-\f
-* Lisp changes in Emacs 23.3
-
-** `e' and `pi' are now called `float-e' and `float-pi'.
- The old names are obsolete.
-
-** The use of unintern without an obarray arg is now obsolete.
-
-** The function `princ-list' is now obsolete.
-
-** The yank-handler argument to kill-region and friends is now obsolete.
-
-** New function byte-to-string, like char-to-string but for bytes.
-
-\f
-* Changes in Emacs 23.3 on non-free operating systems
-
-** The nextstep port can have different modifiers for the left and right
-alt/option key by customizing the value for ns-right-alternate-modifier.
-
-** The MS-Windows port can now use more than 500MB of heap.
-Depending on the available virtual memory, Emacs on Windows can now
-have up to 2GB of heap space. This allows, e.g., to visit several
-large (> 256MB) files in the same session.
-
-\f
-* Installation Changes in Emacs 23.2
-
-** New configure options for Emacs developers.
-These are not new features; only the configure flags are new.
-
-*** --enable-profiling builds Emacs with profiling enabled.
-This might not work on all platforms.
-
-*** --enable-checking[=OPTIONS] builds emacs with extra runtime checks.
-
-** `make install' now consistently ignores umask, creating a
-world-readable install.
-
-** Emacs compiles with Gconf support, if it is detected.
-Use the configure option --without-gconf to disable this.
-This is used by the `font-use-system-font' feature (see below).
-
-* Startup Changes in Emacs 23.2
-
-** The command-line option -Q (--quick) also inhibits loading X resources.
-However, if Emacs is compiled with the Lucid or Motif toolkit, X
-resource settings for the graphical widgets are still applied.
-On Windows, the -Q option causes Emacs to ignore Registry settings,
-but environment variables set on the Registry are still honored.
-
-*** The new variable `inhibit-x-resources' shows whether X resources
-were loaded.
-
-** New command-line option -mm (--maximized) maximizes the initial frame.
-
-* Changes in Emacs 23.2
-
-** The maximum size of buffers (and the largest fixnum) is doubled.
-On typical 32bit systems, buffers can now be up to 512MB.
-
-** The default value of `trash-directory' is now nil.
-This means that `move-file-to-trash' trashes files according to
-freedesktop.org specifications, the same method used by the Gnome,
-KDE, and XFCE desktops. (This change has no effect on Windows, which
-uses `system-move-file-to-trash' for trashing.)
-
-** The pointer now becomes invisible when typing.
-Customize `make-pointer-invisible' to disable this feature.
-
-** Font changes
-
-*** Emacs can use the system default monospaced font in Gnome.
-To enable this feature, set `font-use-system-font' to non-nil (it is
-nil by default). If the system default changes, Emacs changes also.
-This feature requires Gconf support, which is automatically included
-at compile-time if configure detects the gconf libraries (you can
-disable this with the configure option --without-gconf).
-
-*** On X11, Emacs reacts to Xft changes made by configuration tools,
-via the XSETTINGS mechanism. This includes antialias, hinting,
-hintstyle, RGBA, DPI and lcdfilter changes.
-
-** Killing a buffer with a running process now asks for confirmation.
-To remove this query, remove `process-kill-buffer-query-function' from
-`kill-buffer-query-functions', or set the appropriate process flag
-with `set-process-query-on-exit-flag'.
-
-** File-local variable changes
-
-*** Specifying a minor mode as a local variables enables that mode,
-unconditionally. The previous behavior, toggling the mode, was
-neither reliable nor generally desirable.
-
-*** There are new commands for adding and removing file-local variables:
-`add-file-local-variable', `delete-file-local-variable',
-`add-file-local-variable-prop-line', and
-`delete-file-local-variable-prop-line'.
-
-*** There are new commands for adding and removing directory-local variables,
-and copying them to and from file-local variable lists:
-`add-dir-local-variable', `delete-dir-local-variable',
-`copy-dir-locals-to-file-locals',
-`copy-dir-locals-to-file-locals-prop-line' and
-`copy-file-locals-to-dir-locals'.
-
-** Internationalization changes
-
-*** Unibyte sessions are now considered obsolete.
-This refers to the EMACS_UNIBYTE environment variable as well as the
---unibyte, --multibyte, --no-multibyte, and --no-unibyte command line
-arguments. Customizing enable-multibyte-characters and setting
-default-enable-multibyte-characters are also deprecated.
-
-*** New coding system `utf-8-hfs'.
-This is suitable for default-file-name-coding-system on Mac OS X; see
-international/ucs-normalize.el.
-
-** Function arguments in *Help* buffers are now shown in upper-case.
-Customize `help-downcase-arguments' to t to show them in lower-case.
-
-** New command `async-shell-command', bound globally to `M-&'.
-This executes the command asynchronously, similar to calling `M-!' and
-manually adding an ampersand to the end of the command. With `M-&',
-you don't need the ampersand. The output appears in the buffer
-`*Async Shell Command*'.
-
-** When running in a new enough xterm (newer than version 242), Emacs
-asks xterm what the background color is and it sets up faces
-accordingly for a dark background if needed (the current default is to
-consider the background light).
-
-\f
-* Editing Changes in Emacs 23.2
-
-** Kill-ring and selection changes
-
-*** If `select-active-regions' is t, any active region automatically
-becomes the primary selection (for interaction with other window
-applications). If you enable this, you might want to bind
-`mouse-yank-primary' to Mouse-2.
-
-*** When `save-interprogram-paste-before-kill' is non-nil, the kill
-commands save the interprogram-paste selection into the kill ring
-before doing anything else. This avoids losing the selection.
-
-*** When `kill-do-not-save-duplicates' is non-nil, identical
-subsequent kills are not duplicated in the `kill-ring'.
-
-** Completion changes
-
-*** The new command `completion-at-point' provides mode-sensitive completion.
-
-*** tab-always-indent set to `complete' lets TAB do completion as well.
-
-*** The new completion-style `initials' is available.
-For instance, this can complete M-x lch to list-command-history.
-
-*** The new variable `completions-format' determines how completions
-are displayed in the *Completions* buffer. If you set it to
-`vertical', completions are sorted vertically in columns.
-
-** The default value of `blink-matching-paren-distance' is increased.
-
-** M-n provides more default values in the minibuffer for commands
-that read file names. These include the file name at point (when ffap
-is loaded without ffap-bindings), the file name on the current line
-(in Dired buffers), and the directory names of adjacent Dired windows
-(for Dired commands that operate on several directories, such as copy,
-rename, or diff).
-
-** M-r is bound to the new `move-to-window-line-top-bottom'.
-This moves point to the window center, top and bottom on successive
-invocations, in the same spirit as the C-l (recenter-top-bottom)
-command.
-
-** The new variable `recenter-positions' determines the default
-cycling order of C-l (`recenter-top-bottom').
-
-** The abbrevs file is now a file named abbrev_defs in
-user-emacs-directory; but the old location, ~/.abbrev_defs, is used if
-that file exists.
-
-\f
-* Changes in Specialized Modes and Packages in Emacs 23.2
-
-** The bookmark menu has a narrowing search via bookmark-bmenu-search.
-
-** Calc
-
-*** The Calc settings file is now a file named calc.el in
-user-emacs-directory; but the old location, ~/.calc.el, is used if
-that file exists.
-
-*** Graphing commands (`g f' etc.) now work on MS-Windows, if you have
-the native Windows port of Gnuplot version 3.8 or later installed.
-
-** Calendar and diary
-
-*** Fancy diary display is now the default.
-If you prefer the simple display, customize `diary-display-function'.
-
-*** The diary's fancy display now enables view-mode.
-
-*** The command `calendar-current-date' accepts an optional argument
-giving an offset from today.
-
-** Desktop
-
-*** The default value for `desktop-buffers-not-to-save' is nil.
-This means Desktop will try restoring all buffers, when you restart
-your Emacs session. Also, `desktop-buffers-not-to-save' is only
-effective for buffers that have no associated file. If you want to
-exempt buffers that do correspond to files, customize the value of
-`desktop-files-not-to-save' instead.
-
-** Dired
-
-*** The new variable `dired-auto-revert-buffer', if non-nil, causes
-Dired buffers to be reverted automatically on revisiting them.
-
-** DocView
-
-*** When `doc-view-continuous' is non-nil, scrolling a line
-on the page edge advances to the next/previous page.
-
-** Elint
-
-*** Elint now uses compilation-mode.
-
-*** Elint can now scan individual files and whole directories,
-and can be run in batch mode.
-
-*** Elint does a more thorough initialization, and recognizes more built-in
-functions and variables. Customize `elint-scan-preloaded' if you want
-to sacrifice some accuracy for a faster startup.
-
-*** Elint attempts some basic understanding of featurep and (f)boundp tests.
-
-*** Customize `elint-ignored-warnings' to suppress some warnings.
-
-** GDB-UI
-
-*** Toolbar functionality for reverse debugging. Display of STL
-collections as watch expressions. These features require GDB 7.0 or later.
-
-** Grep
-
-*** A new command `zrgrep' searches recursively in gzipped files.
-
-** Info
-
-*** The new command `Info-virtual-index' bound to "I" displays a menu of
-matched topics found in the index.
-
-*** The new command `info-finder' replaces finder.el with a virtual Info
-manual that generates an Info file which gives the same information
-through a menu structure.
-
-** LaTeX mode now provides completion (via completion-at-point).
-
-** Message mode is now the default mode for composing mail.
-
-The default for `mail-user-agent' is now message-user-agent, so the
-C-x m (`compose-mail') command uses Message mode instead of Mail mode.
-
-Message mode has been included in Emacs, as part of the Gnus package,
-for several years. It provides several features that are absent in
-Mail mode, such as MIME handling.
-
-*** If the user has not customized mail-user-agent, `compose-mail'
-checks for Mail mode customizations, and issues a warning if these
-customizations are found. This alerts users who may otherwise be
-unaware that their mail configuration has changed.
-
-To disable this check, set compose-mail-user-agent-warnings to nil.
-
-** The default value of mail-interactive is t, since Emacs 23.1.
-(This was not announced at the time.) It means that when sending mail,
-Emacs will wait for the process sending mail to return. If you
-experience delays when sending mail, you may wish to set this to nil.
-
-** nXML mode is now the default for editing XML files.
-
-** pcomplete provides a new command `pcomplete-std-completion' which
-is similar to `pcomplete' but using the standard completion UI code.
-
-** Shell (and other comint modes)
-
-*** M-s is no longer bound to `comint-next-matching-input'.
-
-*** M-r is now bound to `comint-history-isearch-backward-regexp'.
-This starts an incremental search of the comint/shell input history.
-
-*** ansi-color is now enabled by default in Shell mode.
-To disable it, set ansi-color-for-comint-mode to nil.
-
-** Tramp
-
-*** New connection methods "rsyncc", "imap" and "imaps".
-On systems which support GVFS-Fuse, Tramp offers also the new
-connection methods "dav", "davs", "obex" and "synce".
-
-** VC and related modes
-
-*** When using C-x v v or C-x v i on a unregistered file that is in a
-directory not controlled by any VCS, ask the user what VC backend to
-use to create a repository, create a new repository and register the
-file.
-
-*** New command `vc-root-print-log', bound to `C-x v L'.
-This displays a `*vc-change-log*' buffer showing the history of the
-version-controlled directory tree as a whole.
-
-*** New command `vc-root-diff', bound to `C-x v D'.
-This is similar to `vc-diff', but compares the entire directory tree
-of the current VC directory with its working revision.
-
-*** `C-x v l' and `C-x v L' do not show the full log by default.
-The number of entries shown can be chosen interactively with a prefix
-argument, or by customizing vc-log-show-limit. The `*vc-change-log*'
-buffer now contains buttons at the end of the buffer, which can be
-used to increase the number of entries shown. RCS, SCCS, and CVS do
-not support this feature.
-
-*** vc-annotate supports annotations through file copies and renames,
-it displays the old names for the files and it can show logs/diffs for
-the corresponding lines. Currently only Git and Mercurial take
-advantage of this feature.
-
-*** The log command in vc-annotate can display a single log entry
-instead of redisplaying the full log. The RCS, CVS and SCCS VC
-backends do not support this.
-
-*** When a file is not found, VC will not try to check it out of RCS anymore.
-
-*** Diff and log operations can be used from Dired buffers.
-
-*** vc-git changes
-
-**** The short log format for git makes use of the graph display,
-so it's not supported on git versions earlier than 1.5.6.
-
-**** vc-dir uses the --relative option of git, and so requires at least
-git version 1.5.5.
-
-**** Support for operating with stashes has been added to vc-dir:
-the stash list is displayed in the *vc-dir* header, stashes can be
-created, removed, applied and their content displayed.
-
-*** vc-bzr supports operating with shelves: the shelve list is
-displayed in the *vc-dir* header, shelves can be created, removed and applied.
-
-*** log-edit-strip-single-file-name controls whether or not single filenames
-are stripped when copying text from the ChangeLog to the *VC-Log* buffer.
-
-** Miscellaneous
-
-*** Interactively `multi-isearch-buffers' and `multi-isearch-buffers-regexp'
-read buffer names to search, one by one, ended with RET. With a prefix
-argument, they ask for a regexp, and search in buffers whose names match
-the specified regexp. Interactively `multi-isearch-files' and
-`multi-isearch-files-regexp' read file names to search, one by one,
-ended with RET. With a prefix argument, they ask for a wildcard, and
-search in file buffers whose file names match the specified wildcard.
-
-*** Autorevert Tail mode now works also for remote files.
-
-*** The new eshell built-in commands `su' and `sudo' support Tramp.
-Thus, they change `default-directory' to reflect the new user id, and
-let commands run under that user's permissions. This works even when
-`default-directory' is already remote. Calling the external commands
-is possible via `*su' or `*sudo', respectively.
-
-** Obsolete packages
-
-*** sym-comp.el is now obsolete, superseded by completion-at-point.
-
-*** lucid.el and levents.el are now obsolete.
-
-\f
-* New Modes and Packages in Emacs 23.2
-
-** CEDET (the Collection of Emacs Development Tools) is now in Emacs.
-This is a collection of packages to aid with using Emacs as an IDE
-(integrated development environment):
-
-*** The Semantic package allows the use of parsers to intelligently
-edit and navigate source code. Parsers for C/C++, Java, Javascript,
-and several other languages are included by default, and Semantic can
-also interface with external tools such as GNU Global and GNU Idutils.
-
-To enable Semantic, use the global minor mode `semantic-mode'.
-See the Semantic manual for details.
-
-*** EDE (Emacs Development Environment) is a package for managing code
-projects, including features such as automatic Makefile generation.
-
-To enable EDE, use the minor mode `global-ede-mode'.
-See the EDE manual for details.
-
-*** SRecode is a library for recoding Semantic tags back into source
-code. It is currently used by some parts of Semantic and EDE; in the
-future, it may be used for code generation features.
-
-*** The EIEIO library implements a subset of the Common Lisp Object
-System (CLOS). It is used by the other CEDET packages.
-
-** mpc.el is a front end for the Music Player Daemon. Run it with M-x mpc.
-
-** htmlfontify.el turns a fontified Emacs buffer into an HTML page.
-
-** js.el is a new major mode for JavaScript files.
-
-** imap-hash.el is a new library to address IMAP mailboxes as hashtables.
-
-\f
-* Incompatible Lisp Changes in Emacs 23.2
-
-** The Lisp reader turns integers that are too large/small into floats.
-For instance, on machines where `536870911' is the largest integer,
-reading `536870912' gives the floating-point object `536870912.0'.
-
-This change only concerns the Lisp reader; it does not affect how
-actual integer objects overflow.
-
-** Several obsolete functions removed.
-The functions have been obsolete since Emacs 19, and are unlikely to
-be in use:
-
- time-stamp-month-dd-yyyy, time-stamp-dd/mm/yyyy, time-stamp-mon-dd-yyyy
- time-stamp-dd-mon-yy, time-stamp-yy/mm/dd, time-stamp-yyyy/mm/dd,
- time-stamp-yyyy-mm-dd, time-stamp-yymmdd, time-stamp-hh:mm:ss,
- time-stamp-hhmm, baud-rate
-
-** Support for generating Emacs 18 compatible bytecode (by setting
-the variable `byte-compile-compatibility') has been removed.
-
-** In image-mode.el `image-mode-maybe' is obsolete.
-Instead, you can either use `image-mode' (which displays an image file
-as the actual image initially), or `image-mode-as-text' (when you want
-to display an image file as text initially). `image-mode-as-text' is a
-combination of a non-image mode from `auto-mode-alist' (or Fundamental
-mode) and `image-minor-mode'. `image-minor-mode' provides a `C-c C-c'
-key binding to toggle image display.
-`image-toggle-display-text' removes image properties.
-`image-toggle-display-image' adds image properties.
-`image-toggle-display' toggles between `image-mode-as-text' and `image-mode'.
-
-\f
-* Lisp changes in Emacs 23.2
-
-** All the default-FOO variables that hold the default value of the FOO
-variable, are now declared obsolete.
-
-** read-key is a function halfway between read-event and read-key-sequence.
-It reads a single key, but obeys input and escape sequence decoding.
-
-** Frame parameter changes
-
-*** You can give the `fullscreen' frame parameter the value `maximized'.
-This maximizes the frame.
-
-*** The new frame parameter `sticky' makes Emacs frames sticky in
-virtual desktops.
-
-** Completion changes
-
-*** completion-base-size is obsoleted by completion-base-position.
-This change causes a few backward incompatibilities, mostly with
-choose-completion-string-functions where the `mini-p' argument has
-been replaced by a `base-position' argument, and where the `base-size'
-argument is now always nil.
-
-*** New function `completion-in-region' to use the standard completion
-facilities on a particular region of text.
-
-*** The 4th arg to all-completions (aka hide-spaces) is declared obsolete.
-
-*** completion-annotate-function specifies how to compute annotations
-for completions displayed in *Completions*.
-
-** Minibuffer changes
-
-*** read-file-name-predicate is obsolete. It was used to pass the predicate
-to read-file-name-internal because read-file-name-internal abused its `pred'
-argument to pass the current directory, but this hack is not needed
-any more.
-
-** Changes to file-manipulation functions
-
-*** `delete-directory' has an optional parameter RECURSIVE.
-
-*** New function `copy-directory', which copies a directory recursively.
-
-** called-interactively-p now takes one argument and replaces interactive-p
-which is now marked obsolete.
-
-** New function set-advertised-calling-convention makes it possible
-to obsolete arguments as well as make some arguments mandatory.
-
-** You can control which binding is preferentially shown in menus and
-docstrings by adding a `:advertised-binding' property to the corresponding
-command's symbol. That property can hold a single binding or a list
-of bindings.
-
-** Network and process changes
-
-*** start-process-shell-command and start-file-process-shell-command
-now only take a single `command' argument.
-
-*** The new variable `process-file-side-effects' should be set to nil
-if a `process-file' call does not change a remote file. This allows
-file name handlers such as Tramp to optimizations.
-
-*** make-network-process can now also create `seqpacket' Unix sockets.
-
-** Loading changes
-
-*** eval-next-after-load is obsolete.
-
-*** New hook `after-load-functions' run after loading an Elisp file.
-
-** Byte compilation changes
-
-*** Changing the file-names generated by byte-compilation by redefining
-the function `byte-compile-dest-file' before loading bytecomp.el is obsolete.
-Instead, customize byte-compile-dest-file-function.
-
-*** `byte-compile-warnings' has new members, `constants' and `suspicious'.
-
-** New macro with-silent-modifications to tweak text properties without
-affecting the buffer's modification state.
-
-** Hash tables have a new printed representation that is readable.
-The feature `hashtable-print-readable' identifies this new
-functionality.
-
-** New functions for performing Unicode normalization:
-ucs-normalize-NFD-region, ucs-normalize-NFD-string,
-ucs-normalize-NFC-region, ucs-normalize-NFC-string,
-ucs-normalize-NFKD-region, ucs-normalize-NFKD-string,
-ucs-normalize-NFKC-region, ucs-normalize-NFKC-string,
-ucs-normalize-HFS-NFD-region, ucs-normalize-HFS-NFD-string,
-ucs-normalize-HFS-NFC-region, ucs-normalize-HFS-NFC-string.
-
-** Face aliases can now be marked as obsolete, using the macro
-`define-obsolete-face-alias'.
-
-** New function `window-full-height-p', analogous to the full-width version.
-
-\f
-* Changes in Emacs 23.2 on non-free operating systems
-
-** On MS-Windows, `display-time' now displays the system load average
-as well as the time, as it does on GNU and Unix.
-
-\f
-* Installation Changes in Emacs 23.1
-
-** The default X toolkit is now Gtk+, rather than Lucid.
-The configure option `--with-gtk' has been removed. Gtk is now the
-default toolkit, but you can use --with-x-toolkit=gtk if necessary.
-
-** New font code.
-Fonts are handled by new code capable of dealing with multiple font
-backends. This uses the freetype and fontconfig libraries.
-
-*** Emacs now accepts font names supplied in the fontconfig format
-(e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12").
-
-*** Added support for local fonts (fonts installed on the machine
-where Emacs is running).
-
-*** Added support for the Xft library for antialiasing.
-
-*** Added support for the otf library for complex text layout by
-OpenType fonts.
-
-*** Added support for the m17n library for text shaping.
-
-** Changes to image support
-
-*** configure now checks for libgif before libungif when searching for
-a GIF library.
-
-*** Emacs now supports the SVG image format through librsvg2.
-
-*** Emacs now supports multi-page TIFF images.
-
-** New NeXTSTEP-based port.
-This provides support for GNUstep (via the GNUstep libraries) and Mac
-OS X (via the Cocoa libraries).
-
-Specify --with-ns to configure for this. By default, a self-contained
-app will be built (containing all lisp). To install/share lisp with
-other emacsen (e.g. X11 build) use --disable-ns-self-contained. See
-nextstep/README and nextstep/INSTALL in the Emacs source directory.
-
-** Mac OS X is no longer supported via Carbon.
-Use the NeXTSTEP port, described above.
-
-** The new configuration option "--with-dbus" enables D-Bus language
-bindings for Emacs.
-
-** Support for many obsolete platforms has been removed.
-See the list at the end of etc/MACHINES for details.
-
-*** Support for systems without alloca has been removed.
-
-*** Support for Sun windows has been removed.
-
-*** The `emacstool' utility has been removed.
-
-** The following platforms will be removed in a future Emacs version:
-If you are still using Emacs on one of these platforms, please email
-emacs-devel@gnu.org to inform the Emacs developers.
-
-*** Old GNU/Linux systems based on libc version 5.
-
-*** Old FreeBSD, NetBSD, and OpenBSD systems based on the COFF
-executable format.
-
-*** Solaris versions 2.6 and below.
-
-*** Solaris on IBM RS6000 machines.
-
-*** UNIX System V (the original SysV, not later platforms based on it).
-
-*** Unixware on non-x86 machines.
-
-*** Platforms not supporting shared libraries (i.e., requiring the
-NO_SHARED_LIBS compilation flag).
-
-** The configure options `--with-gcc', `--without-gcc' have been removed.
-Configure will use gcc by default. Set the CC environment variable if
-you need control over which C compiler is used.
-
-** The refcards are now shipped as PDF files.
-
-** The manuals are now licensed under the GNU Free Documentation License v1.3,
-or any later version.
-
-** Emacs 23 comes with a new set of default icons.
-Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png.
-The Emacs 22 icon is available as `emacs22.png' in the same location.
-\f
-* Changes in Emacs 23.1
-
-** Improved X Window System support
-
-*** Emacs now supports using both X displays and ttys in one session.
-With an Emacs server active (M-x server-start), `emacsclient -t'
-creates a tty frame connected to the running emacs server. You can
-use any number of different ttys. `emacsclient -c' creates a new X11
-frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set).
-There may be problems if a display exits unexpectedly and Emacs is compiled
-with Gtk+, see etc/PROBLEMS.
-
-You can test for the presence of this feature in your Lisp code by
-testing for the `multi-tty' feature.
-
-*** Emacs starts in the background, as a daemon, when given the
---daemon command line argument. It disconnects from the terminal and
-starts the server. Clients can connect and create graphical or
-terminal frames using emacsclient.
-
-**** emacsclient starts emacs in daemon mode and connects to it when
---alternate-editor="" is used (or when the evironment variable
-ALTERNATE_EDITOR is set to "") and emacsclient cannot connect to an
-emacs server.
-
-*** The new command close-display-connection closes a connection to a
-remote display. There are some bugs for Gtk+. See etc/PROBLEMS.
-
-*** Emacs now supports the XEmbed specification.
-You can embed Emacs in another application on X11. The new command line
-option --parent-id is used to pass the parent window id to Emacs. See
-http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
-for details about XEmbed.
-
-*** Emacs can now set the frame opacity.
-The opacity of a frame can be controlled by setting the `alpha' frame
-parameter. This only takes effect on a compositing window manager for
-the X Window System, such as Compiz, Beryl and Compiz Fusion, on Mac
-OS X, or on Windows 2000 and later versions of Windows.
-
-The alpha parameter should be an integer between 0 (transparent) and
-100 (opaque), or a float number between 0.0 and 1.0. It can also be a
-cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an
-active frame and INACTIVE is the opacity of non-active frames.
-
-The variable `frame-alpha-lower-limit' defines a lower bound for the
-opacity; the default is 20.
-
-** Internationalization changes
-
-*** The Emacs character set is now a superset of Unicode.
-(It has about four times the code space, which should be plenty).
-
-The internal encoding used for buffers and strings is now
-Unicode-based and called `utf-8-emacs' (`emacs-internal' is an alias
-for this). This encoding is backward-compatible with Unicode's UTF-8
-encoding. The internal encoding previously used by Emacs,
-`emacs-mule', is still available for reading and writing files.
-
-During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files.
-As a result, byte-compiled files containing non-ASCII characters can't
-be read by earlier versions of Emacs. Files compiled by Emacs 20, 21,
-or 22 are loaded correctly as `emacs-mule' (whether or not they
-contain multibyte characters). This takes somewhat more time, so it
-may be worth recompiling existing .elc files which don't need to be
-shared with older Emacsen.
-
-*** There are new coding systems/aliases; see M-x list-coding-systems.
-
-*** There is a new charset implementation with many new charsets.
-See M-x list-character-sets. New charsets can be defined conveniently
-as tables of unicodes.
-
-*** There are new language environments for Chinese-GBK,
-Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu,
-Sinhala, and TaiViet.
-
-*** The minor modes unify-8859-on-encoding-mode and
-unify-8859-on-decoding-mode are obsolete.
-
-*** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers
-accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for
-decimal). It also accepts Unicode character names with completion.
-
-*** The `cyrillic-translit' input method supports many new characters.
-Common typographical characters available from Unicode were added to
-`cyrillic-translit': punctuation marks, accented characters, fractions,
-and others.
-
-** Emacs now supports serial port access on GNU/Linux, Unix, and
-Windows. The new command `serial-term' starts an interactive terminal
-on a serial port. The serial port can be configured at runtime with
-the mode-line mouse menu.
-
-** Menu Bar changes
-
-*** In the Options menu, the "Set Default Font" item applies the
-selected font to the `default' face on all frames, not just the
-current frame. Furthermore, if Emacs is compiled with both GTK and
-Fontconfig support, the "Set Default Font" item uses the GTK font
-selection dialog instead of an Emacs pop-up menu.
-
-*** The font setting chosen by "Set Default Font" is saved if the
-"Save Options" item is used.
-
-*** The Tools menu contains a new Encryption/Decryption submenu.
-This contains commands provided by EasyPG, the newly-included
-interface to GnuPG (see New Modes and Packages).
-
-*** In the Options menu, the "Truncate Long Lines in the Buffer" entry
-has been replaced with a submenu offering three different ways to
-handle long lines: truncation, continuation at the window edge, and
-the new word wrapping behavior (see Editing Changes, below).
-
-*** Improvements to menus for major and minor modes
-More major and minor modes now have a mode specific menu, and existing
-mode menus have been improved to include more functionality.
-
-** Mode-line changes
-
-*** The mode-line displays a `@', instead of `-', if the
-default-directory for the current buffer is on a remote machine.
-
-*** The mode-line displays a mode menu when mouse-1 is clicked on a
-minor mode, in the same way as it already did for major modes.
-
-*** The `mode-line-emphasis' face is used to highlight certain
-mode-line information (e.g. waiting for a VC command to finish).
-
-*** The mode-line tooltips have been improved to provide more details.
-
-*** The VC, line/colum number and minor mode indicators on the mode
-line are now interactive: mouse-1 can be used on them to pop up a menu.
-
-** File deletion can make use of the Recycle Bin or system Trash folder.
-Set `delete-by-moving-to-trash' non-nil to use this. Deleted files
-and directories will then be sent to the Recycle Bin on Windows, and
-to `trash-directory' on other systems.
-
-** Directory-local variables can now be defined.
-By default, Emacs looks in .dir-locals.el for directory-local
-variables. For more information, see `dir-locals-set-directory-class'
-and `dir-locals-set-class-variables'.
-
-** Emacs can now use `auth-source' for authentication.
-`smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain
-login names and passwords. The match, if found, is reported
-in *Messages* with the password blanked out.
-
-** `where-is-preferred-modifier' can specify your favorite modifier.
-
-\f
-* Startup Changes in Emacs 23.1
-
-** The option `inhibit-startup-screen' (with aliases to old names
-`inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit
-display of the initial message in the *scratch* buffer. If you don't
-want to display the initial message in the *scratch* buffer at startup,
-you can set the option `initial-scratch-message' to nil.
-
-** New user option `initial-buffer-choice' specifies what to display
-after starting Emacs: startup screen, *scratch* buffer, visiting a
-file or directory.
-
-** New alias `argv' for `command-line-args-left'
-This is a convenience alias, so that one can write `(pop argv)'
-inside of --eval command line arguments in order to access
-following arguments.
-
-** The abbrev file is no longer read at startup in batch mode.
-
-** Emacs now supports invocation by an X session manager.
-It can save a session and restore it later. See the documentation of
-the functions `emacs-session-save' and `emacs-session-restore'.
-(Actually, this feature was introduced with Emacs 22, but it was not
-documented.)
-\f
-* Incompatible Editing Changes in Emacs 23.1
-
-** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&'
-on the regexp command prefix map.
-
-** In Dired-x, all command guesses for ! are now added to the default
-list accessible by M-n instead of pushing all guesses temporarily into
-the history list.
-
-** In Isearch mode, a special case of typing `C-w' at the beginning of
-the minibuffer that toggles word search (i.e. using key sequences
-`C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key
-`M-s w' to start word search, or type `M-s w' in Isearch mode to
-toggle word search. To start nonincremental word search you can now use
-`M-s w RET' and `M-s w C-r RET' instead of `C-s RET C-w' and `C-r RET C-w'.
-
-** In Info, `Info-search' is unbound from `M-s' to allow using `M-s w'
-for word search as well as other search commands from the global prefix
-key `M-s'. `Info-search' is still bound to `s', and also incremental
-search commands `C-s', `C-M-s', `C-r', `C-M-r' are available for searching
-through multiple Info nodes, together with their nonincremental versions
-`C-s RET', `C-r RET', `C-M-s RET', `C-M-r RET', `M-s w RET'.
-
-** In Text mode, `center-line' and `center-paragraph' are rebound from
-`M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the global
-prefix map `M-o', which is intended for such formatting commands.
-
-** The following input methods were removed in Emacs 22.2, but this was
-not advertised: danish-alt-postfix, esperanto-alt-postfix,
-finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix,
-norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix,
-and swedish-alt-postfix. Use the versions without "alt-", which are
-identical.
-
-\f
-* Editing Changes in Emacs 23.1
-
-** The C-n and C-p line-motion commands now move by screen lines,
-taking continued lines and variable-width characters into account.
-Setting `line-move-visual' to nil reverts this to the previous
-behavior (i.e., motion by logical lines based on buffer contents
-alone).
-
-** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now
-invokes `suspend-frame'. These changes are for compatibility with the
-new multi-tty support (see `Improved X Window System support' above).
-
-** Mark changes
-
-*** Transient Mark mode is now on by default.
-
-*** mark-even-if-inactive now defaults to t
-
-*** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without
-activating it.
-
-*** When Transient Mark mode is on, M-q now fills the region if the
-region is active. Otherwise, it fills the current paragraph.
-
-*** When Transient Mark mode is on, M-$ now checks spelling of the
-region if the region is active. Otherwise, it checks spelling of the
-word at point.
-
-*** When Transient Mark mode is on, TAB now indents the region if the
-region is active.
-
-*** The variable `use-empty-active-region' controls whether an empty
-active region in Transient Mark mode should make commands operate on
-that empty region.
-
-** Temporarily active regions
-
-*** The new variable shift-select-mode, non-nil by default, controls
-shift-selection. When Shift Select mode is on, shift-translated
-motion keys (e.g. S-left and S-down) activate and extend a temporary
-region, similar to mouse-selection.
-
-*** Temporarily active regions, created using shift-selection or
-mouse-selection, are not necessarily deactivated in the next command.
-They are only deactivated after point motion commands that are not
-shift-translated, or after commands that would ordinarily deactivate
-the mark in Transient Mark mode (e.g., any command that modifies the
-buffer).
-
-** Minibuffer and completion changes
-
-*** Emacs may ask for confirmation before opening a non-existent file
-or buffer. By default, Emacs requests confirmation if you type RET
-immediately after TAB, and the resulting input is not an existing file
-or buffer; this usually happens when the minibuffer input did not
-complete far enough and you entered RET by mistake. In that case,
-Emacs puts the message "[Confirm]" in the minibuffer; type RET again
-to create the file or buffer.
-
-The new variable confirm-nonexistent-file-or-buffer determines whether
-Emacs asks for confirmation. The default value is `after-completion'.
-If you change it to t, Emacs always asks for confirmation; if you
-change it to nil, Emacs never asks for confirmation.
-
-*** The rules for performing completion have been changed.
-When generating completion alternatives, Emacs now takes the
-minibuffer text after point, if any, into account: this text is
-treated as a substring of the remaining part of the completion
-alternative (i.e., the part not matched by the minibuffer text before
-point). If no completion alternatives are found this way, Emacs
-attempts to perform partial-completion. If still no completion
-alternatives are found, we fall back on the Emacs 22 rules for
-performing completion.
-
-The new variable `completion-styles' can be customized to choose your
-favorite completion style.
-
-*** When M-n in the minibuffer reaches the end of the list of defaults,
-it adds the completion list to the end, so next M-n continues putting
-completion items to the minibuffer. The same principle applies to
-incremental search commands as well: C-s or C-M-s starts searching
-the default values and after the end of defaults they continue
-searching minibuffer completion items.
-
-*** Minibuffer input of shell commands now comes with completion.
-
-*** In the `C-x d' (Dired) prompt, typing M-n gives the visited file
-name of the current buffer.
-
-*** In the M-! (shell-command) prompt, M-n provides some default commands.
-These are guessed using the file extension of the current file, based
-on the file-handlers specified in the operating system's `mailcap'
-file. The ! command in Dired (dired-do-shell-command) works
-similarly, using the file displayed on the current line.
-
-*** A list of regexp default values is available via M-n for `occur',
-`keep-lines', `flush-lines' and `how-many'. This list includes the active
-region in transient-mark-mode, the word under the cursor, the last Isearch
-regexp, the last Isearch string and the last replacement regexp.
-
-*** When enable-recursive-minibuffers is non-nil, operations which use
-switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when
-used in a minibuffer or a dedicated window. Instead, they fallback on
-using pop-to-buffer, which will use some other window. This change
-has no effect when enable-recursive-minibuffers is nil (the default).
-
-*** Isearch started in the minibuffer searches in the minibuffer history.
-Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer
-history elements, and forward Isearch commands (C-s, C-M-s) search in
-next history elements. When the reverse search reaches the first history
-element, it wraps to the last history element, and the forward search
-wraps to the first history element. When the search is terminated, the
-history element containing the search string becomes the current.
-
-*** The variable read-file-name-completion-ignore-case overrides
-completion-ignore-case for file name completion.
-
-*** The variable read-buffer-completion-ignore-case overrides
-completion-ignore-case for buffer name completion.
-
-*** The new command `minibuffer-force-complete' chooses one of the
-possible completions, rather than stopping at the common prefix.
-
-*** If `completion-auto-help' is `lazy', Emacs shows the completions
-buffer only on the second attempt to complete. This was already
-supported in `partial-completion-mode'.
-
-** Face changes
-
-*** S-down-mouse-1 now pops up a menu for changing the font and text
-size of the default face in the current buffer. The face is changed
-via face remapping (see Lisp changes, below).
-
-*** New commands to change the default face size in the current buffer.
-To increase it, type `C-x C-+' or `C-x C-='. To decrease it, type
-`C-x C--'. To restore the default (global) face size, type `C-x C-0'.
-These work via Text Scale mode, a new minor mode.
-
-The final key in the above commands may be repeated without the
-leading `C-x', e.g. `C-x C-= C-= C-=' increases the face height by
-three steps. Each step scales the height of the default face by the
-value of the variable `text-scale-mode-step'.
-
-*** The commands buffer-face-mode and buffer-face-set can be used to
-remap the default face in the current buffer. See "Buffer Face mode",
-under New Modes and Packages.
-
-** Primary selection changes
-
-*** You can disable kill ring commands from accessing the primary
-selection by setting `x-select-enable-primary' to nil.
-
-** Continuation lines can now be wrapped at word boundaries
-(word-wrapping). This is controlled by the new per-buffer variable
-`word-wrap'. Word wrapping does not take place if continuation lines
-are not shown, e.g. if truncate-lines is non-nil. The most convenient
-way to enable word-wrapping is using the new minor mode Visual Line
-mode; in addition to setting `word-wrap' to t, this rebinds some
-editing commands to work on screen lines rather than text lines. See
-New Modes and Packages, below.
-
-** Window management changes
-
-*** truncate-partial-width-windows now accepts integer values, which
-specify a minimum window width for partial-width windows, below which
-lines are truncated. The default has been changed to 50.
-
-*** The new command balance-windows-area balances windows both
-vertically and horizontally.
-
-*** pop-to-buffer now always sets input focus when the popped-to window
-is on a different frame.
-
-** Miscellaneous changes:
-
-*** C-l is bound to the new command recenter-top-bottom, rather than recenter.
-This moves the current line to window center, top and bottom on
-successive invocations.
-
-*** scroll-preserve-screen-position also preserves the column position.
-
-*** If `yank-pop-change-selection' is t, rotating the kill ring also
-updates the selection or clipboard to the current yank, just as M-w
-would do so with the text it copies to the kill ring.
-
-*** C-M-% now shows replacement as it would look in the buffer, with
-`\N' and `\&' substituted according to the match. Old behavior can be
-restored by customizing `query-replace-show-replacement'.
-
-*** The command shell prompts for the default directory, when it is
-called with a prefix and the default directory is a remote file name.
-This is because some file name handlers (like ange-ftp) are not able to
-run processes remotely.
-
-*** The new command kill-matching-buffers kills buffers whose name
-matches a regexp.
-
-*** The value of comment-style now defaults to `indent'.
-Thefore, comment-start markers are inserted at the current indentation
-of the region to comment, rather than the leftmost column.
-
-*** The new commands `pp-macroexpand-expression' and
-`pp-macroexpand-last-sexp' pretty-print macro expansions.
-
-*** The new command `set-file-modes' allows to set file's mode bits.
-The mode bits can be specified in symbolic notation, like with GNU
-Coreutils, in addition to an octal number. `chmod' is a new
-convenience alias for this function.
-
-*** `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.
-
-*** When typing in a password in the echo area, C-y yanks the current
-kill into the password.
-
-*** Tooltip frame parameters `font' and `color' in `tooltip-frame-parameters'
-are ignored. Customize the `tooltip' face instead.
-
-*** `mkdir' is a new convenience alias for `make-directory'.
-\f
-* New Modes and Packages in Emacs 23.1
-
-** Auto Composition Mode is a minor mode that composes characters
-automatically when they are displayed. It is globally on by default.
-It uses `auto-composition-function' (default `auto-compose-chars').
-
-** Bubbles, a new game, is similar to SameGame.
-
-** Buffer Face mode is a minor mode for remapping the default face in
-the current buffer. The variable `buffer-face-mode-face' specifies
-the face to remap to. The command `buffer-face-set' prompts for a
-face name, sets `buffer-face-mode-face' to it, and enables
-buffer-face-mode. See "Face changes", under Editing Changes, for a
-description of face remapping.
-
-** butterfly flips the desired bit on the drive platter.
-See http://xkcd.com/378/
-
-** bug-reference.el provides clickable links to bug reports.
-
-** dbus.el provides D-Bus language bindings.
-D-Bus is an inter-process communication mechanism for applications
-residing on the same host. See the manual for details.
-
-** DocView mode allows viewing of PDF, PostScript and DVI documents.
-One can also search for a regular expression in the document. For
-details, see the commentary in doc-view.el.
-
-PDF and DVI files are now opened in Doc View mode by default.
-
-In Postcript mode, C-c C-c launches Doc View minor mode for viewing
-the postscript file.
-
-** EasyPG provides an interface to the GNU Privacy Guard (GnuPG).
-It includes a GnuPG keyring browser, cryptographic operations on
-regions and files, and automatic encryption of *.gpg files. For
-details, see the EasyPG Assistant User's Manual.
-
-** json.el is a library for parsing and generating JSON
-(JavaScript Object Notation), a lightweight data-interchange format.
-
-** linum.el is a new minor mode to display line numbers for the
-current buffer.
-
-** mairix.el is an interface to mairix, a free tool for indexing and
-searching locally stored mail. It allows you to query mairix and
-display the search results with Rmail, Gnus and VM. Note that there
-is an existing Gnus back end, nnmairix.el, which should be used with
-Maildir/MH setups.
-
-** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt.
-
-** nXML Mode
-This is a new mode for editing XML documents. It allows a schema to
-be associated with the XML document being edited, using Relax NG as
-the schema language. The schema is used to provide two key features:
-
-*** Continuous validation. nXML validates as you type, highlighting
-any invalid parts of your document.
-
-*** Completion. nXML can assist you in entering an element name,
-attribute name or data value by using information about what is
-allowed by the schema in that context.
-
-** proced.el provides a Dired-like interface for operating on
-processes. Proced makes an Emacs buffer containing a listing of the
-current processes. You can use the normal Emacs commands to move
-around in this buffer, and special Proced commands to operate on the
-processes listed. It is currently only functional on GNU/Linux,
-MS-Windows and Solaris.
-
-** Remember Mode is a mode for jotting down things to remember.
-Notes can be saved to a Diary file. For details, see the Remember
-Manual.
-
-** RST mode is a major mode for editing reStructuredText files.
-
-** Ruby mode is a major mode for Ruby files.
-
-** Visual Line mode provides support for editing by visual lines.
-It turns on word-wrapping in the current buffer, and rebinds C-a, C-e,
-and C-k to commands that operate by visual lines instead of logical
-lines. This is a more reliable replacement for longlines-mode.
-This can also be turned on using the menu bar, via
-Options -> Line Wrapping in this Buffer -> Word Wrap
-
-** xesam.el is an implementation of Xesam, an interface to (desktop)
-search engines like Beagle, Strigi, and Tracker. The Xesam API
-requires D-Bus for communication.
-
-** zeroconf.el offers service discovery and service publishing
-interfaces according to the zeroconf specification. It communicates
-with Avahi, a zeroconf implementation, via D-Bus messages on systems
-which have installed this software.
-
-** There is a new `whitespace' package.
-(The pre-existing one has been renamed to `old-whitespace'.)
-Now, besides reporting bogus blanks, the whitespace package has a
-minor mode and a global minor mode to visualize blanks (TAB, (HARD)
-SPACE and NEWLINE). The visualization is made via faces and/or display
-table. It can also indicate lines that extend beyond a given column,
-trailing blanks, and empty lines at the start or end of a buffer.
-See `whitespace-style' for more details. The `whitespace-action' option
-specifies what to do when a buffer is visited, killed, or written.
-
-\f
-* Changes in Specialized Modes and Packages in Emacs 23.1
-
-** Abbrev has been rewritten in Elisp and extended with more flexibility.
-
-*** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put,
-abbrev-table-p, abbrev-insert, abbrev-table-menu.
-
-*** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'.
-
-*** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take
-extra arguments for arbitrary properties.
-
-*** New variable `abbrev-minor-mode-table-alist'.
-
-*** `local-abbrev-table' can hold a list of abbrev-tables.
-
-*** Abbrevs have now the following special properties:
-`:count', `:system', `:enable-function', `:case-fixed'.
-
-*** Abbrev-tables have now the following special properties:
-`:parents', `:case-fixed', `:enable-function', `:regexp',
-`abbrev-table-modiff'.
-
-** Apropos
-
-*** `apropos-library' describes the elements defined in a given library.
-
-*** Set `apropos-compact-layout' is you want a more compact (but wider) layout.
-
-** Archive Mode has basic support to browse Rar archives.
-Note, however, that the free version of the unrar command only handles
-versions 1 and 2 of the Rar format.
-
-** BibTeX mode
-
-*** New command `bibtex-initialize' (re)initializes BibTeX buffers.
-
-*** 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' allows multiple URLs per entry.
-
-** Bookmarks
-
-*** bookmark.el saves bookmarks in a pre-Emacs-23-incompatible file format
-bookmark.el can read a .emacs.bmk file saved by an older Emacs, but an
-older Emacs cannot read one saved by Emacs 23.
-
-** Calendar and diary
-
-*** There is a new date style, `iso', essentially year/month/day.
-The variable `european-calendar-style' is obsolete - use `calendar-date-style'.
-Similarly, the commands `american-calendar' and `european-calendar'
-should be replaced by `calendar-set-date-style'.
-
-*** The calendar namespace has been rationalized.
-All functions and variables now begin with a `calendar-', `diary-', or
-`holiday-' prefix. The various calendar systems have secondary
-prefixes, eg `calendar-french-'. The old names you are likely to use
-directly still exist, for the time being, as aliases, but please start
-using the new names.
-
-*** The whitespace in the calendar layout can be customized.
-See the variables:
-calendar-left-margin, calendar-intermonth-spacing, calendar-column-width,
-calendar-day-header-width, and calendar-day-digit-width.
-
-*** Text (e.g. ISO weeks) can be displayed between the calendar months.
-See the variables calendar-intermonth-header and calendar-intermonth-text.
-
-*** The function `holiday-chinese' computes holidays on the Chinese calendar.
-It has been used to add items to the list `holiday-oriental-holidays'.
-
-*** `diary-remind' accepts a negative number -DAYS as a shorthand for
-the list (1 2 ... DAYS).
-
-** Change Log mode
-
-*** The new command C-c C-f (change-log-find-file) finds the file
-associated with the current log entry.
-
-*** The new command C-c C-c (change-log-goto-source) goes to the
-source code associated with a log entry.
-
-** Compile and grep modes
-
-*** The mode-line entry for the *compilation* and *grep* buffer is color coded.
-It has different colors for to show that: (a) the command is still
-running, (b) successful completion, (c) error.
-
-*** compilation-auto-jump-to-first-error tells `compile' to jump to
-the first error encountered during compilations.
-
-*** compilation-scroll-output accepts a new value, `first-error', which
-says to stop auto scrolling at the first error that occurs.
-
-*** The `cc' alias for C++ files in `grep-file-aliases' has been
-improved. `hh' can be used to match C++ header files and `cchh' both
-C++ sources and headers.
-
-** Copyright
-
-*** You can specify your copyright holders' names.
-Only copyright lines with holders matching `copyright-names-regexp' are
-considered for update.
-
-*** Copyrights can be at the end of the buffer.
-This is controlled by `copyright-at-end-flag' (used by, e.g., change-log-mode).
-
-** Custom
-
-*** defcustom accepts new keyword arguments, `:safe' and `:risky', which
-set a variable's `safe-local-variable' and `risky-local-variable' property.
-
-** Diff mode
-
-*** diff-refine-hunk highlights word-level details of changes in a diff hunk.
-It's used automatically as you move through hunks, see
-diff-auto-refine-mode. It is bound to `C-c C-b'.
-
-*** diff-add-change-log-entries-other-window iterates through the diff
-buffer and tries to create ChangeLog entries for each change.
-It is bound to `C-x 4 A'.
-
-*** Turning on `whitespace-mode' in a diff buffer will show trailing
-whitespace problems in the modified lines.
-
-** Dired
-
-*** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode,
-and C-x C-q in wdired-mode exits it with asking a question about
-saving changes.
-
-*** `&' runs the command `dired-do-async-shell-command' that executes
-the command asynchronously without the need to manually add ampersand
-to the end of the command. Its output appears in the buffer `*Async Shell
-Command*'.
-
-*** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names.
-When a new user option `dired-isearch-filenames' is t, then even ordinary
-Isearch started with `C-s' and `C-M-s' matches only at file names in the
-Dired buffer. When `dired-isearch-filenames' is `dwim' then activation of
-file name Isearch depends on the position of point - if point is on a file
-name initially, then Isearch matches only file names, otherwise it matches
-everywhere in the Dired buffer. You can toggle file names matching on or
-off by typing `M-s f' in Isearch mode.
-
-*** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files.
-They visit the first marked file in the sequence and display the usual Isearch
-prompt for a string or a regexp where all Isearch commands are available.
-
-*** `Q' in Dired provides two new keys for multi-file replacement.
-The upper case key `Y' replaces all remaining matches in all remaining files
-with no more questions. The upper case key `N' stops doing replacements
-in the current file and skips to the next file. These multi-file keys
-are available for all commands that use `tags-query-replace'
-including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp',
-`reftex-query-replace-document'.
-
-** Fortran
-
-*** The line length of fixed-form Fortran is not fixed at 72 any more.
-Customize the variable `fortran-line-length' to change it.
-
-*** In Fortran mode, M-; is now bound to the standard comment-dwim,
-rather than fortran-indent-comment.
-
-*** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax.
-
-** Gnus
-
-*** The Gnus package has been updated
-There are many new features, bug fixes and improvements; see the file
-GNUS-NEWS or the node "No Gnus" in the Gnus manual for details.
-
-*** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for
-saving articles, drafts, and ~/.newsrc.eld. These file may not be read
-correctly in Emacs 22 and below. If you want to Gnus across different Emacs
-versions, you may set `mm-auto-save-coding-system' to `emacs-mule'.
-
-*** Passwords are consistently loaded through `auth-source'
-Gnus can use `auth-source' for POP and IMAP passwords. Also see that
-`smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS
-authentication respectively.
-
-** Help mode
-
-*** New macro `with-help-window' should set up help windows better
-than `with-output-to-temp-buffer' with `print-help-return-message'.
-
-*** New option `help-window-select' permits to customize whether help
-window shall be automatically selected when invoking help.
-
-*** New variable `help-window-point-marker' permits one to specify a new
-position for point in help window (for example in `view-lossage').
-
-** Isearch
-
-*** New command `isearch-forward-word' bound globally to `M-s w' starts
-incremental word search. New command `isearch-toggle-word' bound to the
-same key `M-s w' in Isearch mode toggles word searching on or off
-while Isearch is active.
-
-*** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch
-mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current
-search string as its regexp argument. The same key `M-s h r' and
-other keys on the `M-s h' prefix are bound globally to the command
-`highlight-regexp' and other hi-lock commands.
-
-*** New command `isearch-occur' bound to `M-s o' in Isearch mode
-runs `occur' with the current search string. The same key `M-s o'
-is bound globally to the command `occur'.
-
-*** Isearch can now search through multiple ChangeLog files.
-When running Isearch in a ChangeLog file, if the search fails,
-then another C-s tries searching the previous ChangeLog,
-if there is one (e.g. going from ChangeLog to ChangeLog.12).
-This is enabled if multi-isearch-search is non-nil.
-
-*** Two new commands to start Isearch on a list of marked buffers
-for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and
-`M-s a M-C-s'.
-
-*** The part of an Isearch that failed to match is highlighted in
-`isearch-fail' face.
-
-*** `C-h C-h' in Isearch mode displays isearch-specific Help screen,
-`C-h b' displays all Isearch key bindings, `C-h k' displays the full
-documentation of the given Isearch key sequence, `C-h m' displays
-documentation for Isearch mode. All the other Help commands exit
-Isearch mode and execute their global definitions.
-
-*** When started in the minibuffer, Isearch searches in the minibuffer
-history. See `Minibuffer changes', above.
-
-** MH-E
-
-*** Upgraded to MH-E version 8.2. See MH-E-NEWS for details.
-
-** Python
-*** The file etc/emacs.py now supports both Python 2 and 3, meaning
-that either version can be used as inferior Python by python.el.
-
-*** Python mode now has `pdbtrack' functionality. When using pdb to
-debug a Python program, pdbtrack notices the pdb prompt and displays
-the source file and line that the program is stopped at, much the same
-way as gud-mode does for debugging C programs with gdb.
-
-** Recentf
-
-*** The default value of `recentf-keep' prevents from checking of
-remote files, if there is no established connection to the
-corresponding remote host.
-
-** Rmail
-
-*** Rmail no longer converts the messages to Babyl format.
-Instead, it uses UNIX mbox format, both on disk and in Rmail buffers,
-and does conversion and decoding when a message is displayed.
-
-The first time you visit an Rmail file in Babyl format, Rmail
-automatically converts it to mbox format. This is a one-time
-conversion, but it can take a few minutes, depending on how fast is
-your machine and on the size of the file. You should find the rest of
-Rmail usage unaltered.
-
-However, M-x set-rmail-inbox-list now lasts only for one session
-because there is no way to save the list of inbox files in an
-mbox-format file.
-
-Also, whereas with Babyl format M-x find-file would switch to Rmail
-mode, with mbox format this is no longer the case (there being no way
-to add an "-*- rmail-*-" cookie to an mbox file). Use C-u M-x rmail
-instead.
-
-If you have written any extensions to Rmail, they are likely to need
-updating. Conceptually, the Rmail buffer that you see is no longer
-just a narrowed portion of the whole. So you cannot access the whole
-of a message (or message collection) by a simple save-restriction and
-widen. Instead, there are two buffers: the rmail-buffer, and the
-rmail-view-buffer. The former is the buffer that you see, the latter
-is invisible. Most of the time, the invisible `view' buffer contains
-the full contents of the Rmail file, and the Rmail buffer contains a
-decoded copy of the current message (with only a subset of the
-headers). In this state, Rmail is said to be `swapped'.
-
-You may find the following functions useful:
-
-`rmail-get-header' and `rmail-set-header' get or set the value of a
-message header, whether or not it is currently visible.
-
-`rmail-apply-in-message' is a general purpose function that calls a
-function (with arguments) which you specify on the full text of a given
-message. To further narrow to just the headers, search forward for "\n\n".
-
-*** The new command `rmail-mime' displays MIME messages.
-It is bound to `v' in Rmail buffers and summaries. It displays plain
-text and multipart messages in a temporary buffer, and offers buttons
-to save attachments.
-
-*** The command `rmail-redecode-body' no longer accepts the optional arg RAW.
-Since Rmail now holds messages in their original undecoded form in a
-separate buffer, `rmail-redecode-body' no longer encodes the original
-message, and therefore there should be no need to avoid encoding it.
-
-*** The o command is now `rmail-output'. It is an all-purpose command
-for copying messages from Rmail and appending them to files. It
-handles Babyl-format files as well as mbox-format files, and it
-handles both kinds properly when they are visited in Emacs. It always
-copies the full headers of the message.
-
-*** The C-o command is now `rmail-output-as-seen'. It uses
-the message as displayed, appending it to an mbox file.
-
-*** The modified status of the Rmail buffer is reported in the mode-line.
-Previously, this information was hidden.
-
-** TeX modes
-
-*** New option latex-indent-within-escaped-parens
-permits to customize indentation of LaTeX environments delimited
-by escaped parens.
-
-** T-mouse Mode
-
-*** If the gpm mouse server is running and t-mouse-mode is 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.
-
-** 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".
-
-*** IPv6 addresses.
-IPv6 addresses are supported now as host names. They must be embedded
-in square brackets, like in "/ssh:[::1]:".
-
-*** Multihop syntax has been removed.
-The pseudo-method "multi" has been removed. Instead, 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 is kept persistently 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.
-
-*** Passwords can be read from an authentification file.
-Tramp uses the package `auth-source' to read passwords from a file, if
-necessary.
-
-** VC and related modes
-
-*** VC now supports applying VC operations to a set of files at a time.
-This enables VC to work much more effectively with changeset-oriented
-version-control systems such as Subversion, GNU Arch, Mercurial, Git
-and Bzr. VC will now pass a multiple-file commit to these systems as
-a single changeset.
-
-*** vc-dir is a new command that displays file names and their VC
-status. It allows to apply various VC operations to a file, a
-directory or a set of files/directories.
-
-*** VC switches are no longer appended, rather the first non-nil value is used.
-(This was for the most part true in Emacs 22, but was not advertised).
-This is because there is an increasing variety of VC systems, and they
-do not all accept the same "common" options. For example, a CVS diff
-command used to append the values of `vc-cvs-diff-switches',
-`vc-diff-switches', and `diff-switches'. Now the first non-nil value
-from that sequence is used. The special value `t' means "no switches".
-
-*** Clicking on the VC mode-line entry now pops the VC menu.
-
-*** The VC mode-line entry now has a tooltip that explains the VC file status.
-
-*** In VC Annotate mode, the key bindings have changed to use lower
-case keys instead of the upper case keys used in the past.
-
-*** In VC Annotate mode, for VC systems that support changesets, you can
-see the diff for the whole changeset (not only for the current file)
-by typing the D key. Using the "Show changeset diff of revision at
-line" menu entry does the same thing.
-
-*** In VC Annotate mode, you can type v to toggle the annotation visibility.
-
-*** In VC Annotate mode, you can type f to show the file revision on
-the current line.
-
-*** Asynchronous VC commands display [Waiting...] in the mode-line
-of the corresponding buffer as long as the asynchronous process is
-active.
-
-*** Log entries can be modified using the key "e" in log-view.
-For now only CVS, RCS, SCCS and SVN support this functionality.
-This is done by the `modify-change-comment' backend function.
-
-*** In log-view-mode, for VC systems that support changesets, you can
-see the diff for the whole changeset (not only for the current file)
-by typing the D key or using the "Changeset Diff" menu entry.
-
-*** In Log Edit mode, C-c C-d now shows the diff for the files involved.
-
-*** vc-git supports the "git grep" command.
-
-*** VC Support for Meta-CVS has been removed for lack of a maintainer able
-to update it to the new VC.
-
-** Miscellaneous
-
-*** 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.
-
-*** Eldoc highlights the function argument under point
-with the face `eldoc-highlight-function-argument'.
-
-*** In Etags, the --members option is now the default.
-Use --no-members if you want the old default behavior of not tagging
-struct members in C, members variables in C++ and variables in PHP.
-
-*** The `gdb' command only works with the graphical interface now.
-Use `gud-gdb' if you want the (old) text command mode.
-
-*** goto-address.el provides two new minor modes, goto-address-mode and
-goto-address-prog-mode, which buttonize URLS and email addresses.
-
-*** The new command `eshell/info' runs info in an eshell buffer.
-
-*** The new variable `ffap-rfc-directories' specifies a list of local
-directories in which `ffap-rfc' will first search for RFCs.
-
-*** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them.
-See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'.
-
-*** `icomplete-prospects-height' now supersedes `icomplete-prospects-length'.
-
-*** Info displays breadcrumbs in the header of the page.
-See Info-breadcrumbs-depth to control it.
-
-*** net-utils has an `iwconfig' command, similar to the existing `ifconfig'.
-It is used to configure wireless interfaces.
-
-*** The pcmpl-unix package supports hostname completion for ssh and scp.
-
-*** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs.
-
-*** smerge-refine highlights word-level details of changes in conflict.
-It's used automatically as you move through conflicts, see
-smerge-auto-refine-mode.
-
-*** talk.el has been extended for multiple tty support.
-
-*** A new command `display-time-world' has been added to the Time
-package. It creates a buffer with an updating time display using
-several time zones.
-
-*** The appearance of superscript and subscript in TeX is more customizable.
-See the documentation of the variables: tex-fontify-script,
-tex-font-script-display, tex-suscript-height-ratio, and
-tex-suscript-height-minimum.
-
-*** view-remove-frame-by-deleting is now by default t
-since users found iconification of view-mode frames distracting.
-
-*** WoMan tries to add locale-specific manual page directories to the
-search path. This can be disabled by setting `woman-locale' to nil.
-
-\f
-* Changes in Emacs 23.1 on non-free operating systems
-
-** Case is now considered significant in completion on MS-Windows.
-The default value of `completion-ignore-case' is now nil on
-MS-Windows, the same as it is for other operating systems. The
-variable doesn't apply to reading a file name -- in that case Emacs
-heeds `read-file-name-completion-ignore-case' instead.
-
-** IPv6 is supported on MS-Windows.
-Emacs now supports IPv6 on Windows XP and later, and earlier versions
-of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was
-supported on other platforms, but not on Windows due to using the winsock
-1.1 header file, even though Emacs was linking to the winsock 2 library.
-
-** Busy cursor (hourglass) now displays on MS-Windows.
-When Emacs is busy, an hourglass mouse cursor is displayed on Windows.
-In Emacs 22 only X supported the busy cursor.
-
-** Battery status is available on MS-Windows
-Emacs can now display the battery status in the mode-line when enabled with
-display-battery-mode or from the Options menu. More verbose battery
-information is also available with the command `battery'. In Emacs 22
-battery status was supported only on GNU/Linux and Mac.
-
-** More keys available on MS-Windows.
-Keys normally associated with IMEs, and some exotic keys not normally found
-on standard keyboards have been given names so they can be bound to functions
-inside Emacs. If there are keys on your keyboard that have not been exposed
-to Emacs in the past, try C-h k to see if they are available now.
-
-Emacs can now bind functions to the extra buttons for media player and
-browser control present on some keyboards. These buttons are disabled
-by default, since enabling them prevents their system-wide use when
-Emacs has focus. To enable them, set the variable
-w32-pass-multimedia-buttons to nil. See the doc string of that variable
-for the list of extra keys that are available.
-
-** BDF fonts no longer supported on MS-Windows.
-The font backend was completely rewritten for this release. The focus
-on Windows has been getting acceptable performance and full unicode
-support, including complex script shaping for native Windows fonts. A
-rewrite of the BDF font support has not happened due to lack of time
-and developers. If demand still exists for such a backend even with
-the improved language support for native Windows fonts, future
-development in this direction will most likely be based on the
-freetype library, giving access to a wider range of font formats.
-
-\f
-* Incompatible Lisp Changes in Emacs 23.1
-
-** Variables cannot be both buffer-local and frame-local any more.
-
-** `functionp' returns nil for special forms.
-I.e., it only returns t for objects that can be passed to `funcall'.
-
-** The behavior of map-char-table has changed. It may call the
-specified function with a cons (FROM . TO) as a key if characters in
-that range have the same value.
-
-** Process changes
-
-*** The function `dired-call-process' has been removed.
-
-*** The multibyteness of process filters is now determined by the
-coding-system used for decoding. The functions
-`process-filter-multibyte-p' and `set-process-filter-multibyte' are
-obsolete.
-
-** The variable `byte-compile-warnings' can now be a list starting with `not',
-meaning to disable the specified warnings. The meaning of this list
-may therefore be the reverse of what you expect (of course, this is
-only an issue if you make use of the new `not' syntax). Rather than
-checking/manipulating elements directly, use the new functions
-`byte-compile-warning-enabled-p', `byte-compile-disable-warning', and
-`byte-compile-enable-warning.'
-
-** `mode-name' is no longer guaranteed to be a string.
-Use `(format-mode-line mode-name)' to ensure a string value.
-
-** The function x-font-family-list has been removed.
-Use the new function font-family-list (see Lisp Changes, below).
-
-** Internationalization changes
-
-*** The value of the function `charset-id' is now always 0.
-
-*** The functions `register-char-codings' and `coding-system-spec'
-have been removed.
-
-*** The cpXXX coding systems are now supported automatically.
-The functions cp-...-codepage, which you had to use in Emacs 22 to
-enable support for these coding systems, have been deleted.
-
-*** The following features have been removed. They were used for
-displaying various scripts with specific fonts, and are no longer
-needed now that OpenType font support is available:
-
-**** `devanagari' and `devan-util', and all associated devanagari-* and
-dev-* functions and variables (formerly used for Devanagari script).
-
-**** `kannada' and `knd-util', and all associated kannada-* and knd-*
-functions and variables (formerly used for Kannada script).
-
-**** `malayalam' and `mlm-util', and all associated malayalam-* and
-mlm-* functions and variables (formerly used for Malayalam script).
-
-**** `tamil' and `tml-util, and all associated tamil-* and tml-*
-functions and variables (formerly used for Tamil script).
-
-*** The meaning of NAME argument of `set-fontset-font' is changed.
-Previously nil is accepted as the default fontset. Now, nil is for
-the fontset of the selected frame and t is for the default fontset.
-
-*** The meaning of FONTSET argument of `print-fontset' is changed.
-Now, nil is for the fontset of the selected frame and t is for the
-default fontset.
-
-** If a function in write-region-annotate-functions returns with a
-different buffer current, Emacs no longer kills that buffer
-automatically. This behavior existed in previous versions of Emacs,
-but was undocumented. To kill a buffer after write-region, give the
-variable `write-region-post-annotation-function' a buffer-local value
-of `kill-buffer'.
-
-** The variable temp-file-name-pattern has been removed.
-This variable was only used by call-process-region, which now uses
-temporary-file-directory instead.
-
-** The COUNT and SYSTEM-FLAG arguments to define-abbrev have been
-removed. The function now takes extra arguments for specifying
-arbitrary abbrev properties.
-
-** end-of-defun-function is now guaranteed to work only when called
-from the start of a defun. It must now leave point exactly at the end
-of defun, since `end-of-defun' now itself moves forward over
-whitespace after calling it.
-
-\f
-* Lisp Changes in Emacs 23.1
-
-** The new variable `generate-autoload-cookie' controls the magic comment
-string used by `update-file-autoloads' to find autoloaded forms. The
-variable `generated-autoload-file' similarly controls the name of the
-file where `update-file-autoloads' writes the calls to `autoload'.
-The default values are ";;;###autoload" and `loaddefs.el',
-respectively.
-
-** New primitives `list-system-processes' and `process-attributes'
-let Lisp programs access the processes that are running on the local
-machine. See the doc strings of these functions for more details.
-Not all platforms support accessing this information; on those that
-don't, these primitives will return nil.
-
-** New variable `user-emacs-directory'.
-Use this instead of "~/.emacs.d".
-
-** If a local hook function has a non-nil `permanent-local-hook'
-property, `kill-all-local-variables' does not remove it from the local
-value of the hook variable; it remains even if you change major modes.
-
-** `frame-inherited-parameters' lets new frames inherit parameters from
-the selected frame.
-
-** New keymap `input-decode-map' overrides like key-translation-map, but
-applies before function-key-map. Also it is terminal-local contrary to
-key-translation-map. Terminal-specific key-sequences are generally added to
-this map rather than to function-key-map now.
-
-** `ignore-errors' is now a standard macro (does not require the CL package).
-
-** `interprogram-paste-function' can now return one string or a list
-of strings. In the latter case, Emacs puts the second and following
-strings on the kill ring.
-
-** In `condition-case', a handler can specify "let the debugger run first".
-You do this by writing `debug' in the list of conditions to be handled,
-like this:
-
- (condition-case nil
- (foo bar)
- ((debug error) nil))
-
-** clone-indirect-buffer now runs the clone-indirect-buffer-hook.
-
-** `beginning-of-defun-function' now takes one argument, the count given to
-`beginning-of-defun'. (N.B. `end-of-defun-function' doesn't take any
-arguments.)
-
-** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED.
-IDENTIFICATION specifies which part of the remote identifier has to be
-returned. With CONNECTED passed non-nil, it is checked whether a
-remote connection has been established already.
-
-** The new macro `declare-function' suppresses compiler warnings about
-undefined functions.
-
-** Changes to interactive function handling
-
-*** The new interactive spec code ^ says to first call
-handle-shift-selection if shift-select-mode is non-nil, before reading
-the command arguments. This is used for shift-selection (see above).
-
-*** Built-in functions can now have an interactive specification that
-is not a prompt string. If the `intspec' parameter of a `DEFUN'
-starts with a `(', the string is evaluated as a Lisp form.
-
-*** The interactive-form of a function can be added post-facto via the
-`interactive-form' symbol property. Mostly useful to add complex
-interactive forms to subroutines.
-
-** Region changes
-
-*** Commands should use `use-region-p' to test whether there is
-an active region that they should operate on.
-
-*** `region-active-p' returns non-nil when Transient Mark mode is
-enabled and the mark is active. Most commands that act specially on
-the active region in Transient Mark mode should use `use-region-p'
-instead of `region-active-p', because `use-region-p' obeys the new
-user option `use-empty-active-region' (see Editing Changes, above).
-
-*** If a command sets `transient-mark-mode' to (only . OLDVAL), that
-means to activate transient-mark-mode temporarily, until the next
-unshifted point motion command or mark deactivation. Afterwards,
-reset transient-mark-mode to the value OLDVAL. The values `only' and
-`identity', introduced in Emacs 22, are now deprecated.
-
-** Emacs session information
-
-*** The new variables `before-init-time' and `after-init-time' record the
-value of `current-time' before and after Emacs loads the init files.
-
-*** The new function `emacs-uptime' returns the uptime of an Emacs instance.
-
-*** The new function `emacs-init-time' returns the duration of the
-Emacs initialization.
-
-** Changes affecting display-buffer
-
-*** display-buffer tries to be smarter when splitting windows.
-The new option split-window-preferred-function lets you specify your own
-function to pop up new windows. Its default value split-window-sensibly
-can split a window either vertically or horizontally, whichever seems
-more suitable in the current configuration. You can tune the behavior
-of split-window-sensibly by customizing split-height-threshold and the
-new option split-width-threshold. Both options now take the value nil
-to inhibit splitting in one direction. Setting split-width-threshold to
-nil inhibits horizontal splitting and gets you the behavior of Emacs 22
-in this respect. In any case, display-buffer may now split the largest
-window vertically even when it is not as wide as the containing frame.
-
-*** If pop-up-frames has the value `graphic-only', display-buffer only
-makes a separate frame on graphic displays.
-
-*** select-frame and set-frame-selected-window have a new optional
-argument NORECORD. If non-nil, this will avoid messing with the order
-of recently selected windows and the buffer list.
-
-** Window parameters can now be defined.
-These are analogous to frame parameters, but are associated with
-individual windows.
-
-*** The new functions window-parameters, window-parameter, and
-set-window-parameter are used to query and set window parameters.
-
-** Minibuffer and completion changes
-
-*** A list of default values can be specified for the DEFAULT argument of
-functions `read-from-minibuffer', `read-string', `read-command',
-`read-variable', `read-buffer', `completing-read'. Elements of this list
-are available for inserting into the minibuffer by typing `M-n'.
-For empty input these functions return the first element of this list.
-
-*** New function `read-regexp' uses the regexp history and some useful
-regexp defaults (string at point, last Isearch/replacement regexp/string)
-via M-n when reading a regexp in the minibuffer.
-
-*** minibuffer-local-must-match-filename-map is now named
-minibuffer-local-filename-must-match-map.
-
-*** The `require-match' argument to `completing-read' accepts the new
-values `confirm-only' and `confirm-after-completion'.
-
-** Search and replacement changes
-
-*** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly.
-
-*** New function `match-substitute-replacement' returns the result of
-`replace-match' without actually using it in the buffer.
-
-*** The new variable `replace-search-function' determines the function
-to use for searching in query-replace and replace-string. The
-function it specifies is called by `perform-replace' when its 4th
-argument is nil.
-
-*** The new variable `replace-re-search-function' determines the
-function to use for searching in `query-replace-regexp',
-`replace-regexp', `query-replace-regexp-eval', and
-`map-query-replace-regexp'. The function it specifies is called by
-`perform-replace' when its 4th argument is non-nil.
-
-*** New keymap `search-map' bound to `M-s' provides global bindings
-for search related commands.
-
-*** New keymap `multi-query-replace-map' contains additonal keys bound
-to `automatic-all' and `exit-current' for multi-buffer interactive replacement.
-
-*** The variable `inhibit-changing-match-data', if non-nil, prevents
-the search and match primitives from changing the match data.
-
-*** New functions `word-search-forward-lax' and `word-search-backward-lax'.
-These are like `word-search-forward and `word-search-backward', except
-that the end of the search string need not match a word boundary,
-unless it ends in whitespace.
-
-** File handling changes
-
-*** set-file-modes is now interactive and can take the mode value in
-symbolic notation thanks to auxiliary functions.
-
-*** file-local-variables-alist stores an alist of file-local
-variables defined in the current buffer.
-
-** Face-remapping
-
-*** Each face can be remapped to a different face definition using the
-variable `face-remapping-alist'. This is an alist that maps faces to
-replacement definitions (which can be face names, lists of face names,
-or attribute/value plists. If this variable is buffer-local, the
-remapping occurs only in that buffer.
-
-*** text-scale-mode remaps the default face to a larger or smaller
-size in the current buffer. This feature is used by the Buffer Face
-menu and the new `C-x C-+', `C-x C--', and `C-x C-0' commands (see
-Editing Changes, above).
-
-*** New functions:
-
-**** `face-remap-add-relative' adds a face remapping entry to the
-current buffer.
-
-**** ``face-remap-remove-relative' removes a face remapping entry from
-the current buffer.
-
-**** `face-remap-reset-base' restores a face to its global definition.
-
-**** `face-remap-set-base' sets the base remapping of a face.
-
-** Process changes
-
-*** The new function `start-file-process' is similar to `start-process',
-but obeys file handlers. The file handler is chosen based on
-`default-directory'. The functions `start-file-process-shell-command'
-and `process-file-shell-command' are also new; they call internally
-`start-file-process' and `process-file', respectively.
-
-*** The new function `process-lines' executes an external program and
-returns its output as a list of lines.
-
-** Character code, representation, and charset changes.
-
-*** In multibyte buffers and strings, characters are represented by
-UTF-8 byte sequences. The character code space is now 0x0..0x3FFFFF
-with no gap; code points 0x0..0x10FFFF are Unicode characters of the
-same code points, while code points 0x3FFF80..0x3FFFFF are raw 8-bit
-bytes.
-
-*** Generic characters no longer exist.
-
-*** The concept of a charset has changed. A single character may
-belong to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets
-unicode, iso-8859-1, iso-8859-3, etc).
-
-**** The dimension of a charset is now 1, 2, 3, or 4, and the size of
-each dimension is no longer limited to 94 or 96.
-
-**** A dynamic charset priority list is used to infer the charset of
-characters for display.
-
-*** The functions `split-char' and `make-char' now accept up to 4
-positional codes instead of just 2.
-
-*** The functions `encode-char' and `decode-char' now accept any character sets.
-
-*** The function `define-charset' now accepts a completely different
-form of arguments (old-style arguments still work).
-
-*** The value of the function `char-charset' depends on the current
-priorities of charsets.
-
-*** The function get-char-code-property now accepts many Unicode base
-character properties. They are `name', `general-category',
-`canonical-combining-class', `bidi-class', `decomposition',
-`decimal-digit-value', `digit-value', `numeric-value', `mirrored',
-`old-name', `iso-10646-comment', `uppercase', `lowercase', and
-`titlecase'.
-
-*** The functions `modify-syntax-entry' and `modify-category-entry' now
-accept a cons of characters as the first argument, and modify all
-entries in that range of characters.
-
-*** Use of `translation-table-for-input' for character code unification
-is now obsolete, since Emacs 23.1 and later uses Unicode as basis for
-internal representation of characters.
-
-*** New functions:
-
-**** `characterp' returns t if and only if the argument is a character.
-This replaces `char-valid-p', which is now obsolete.
-
-**** `max-char' returns the maximum character code (currently #x3FFFFF).
-
-**** `define-charset-alias' defines an alias of a charset.
-
-**** `set-charset-priority' sets priorities of charsets.
-
-**** `charset-priority-list' returns a prioritized list of charsets.
-
-**** `unibyte-string' makes a unibyte string from bytes.
-
-**** `define-char-code-property' defines a character code property.
-
-**** `char-code-property-description' returns the description string of
-a character code property.
-
-*** New variables:
-
-**** `find-word-boundary-function-table' is a char-table of functions to
-search for a word boundary.
-
-**** `char-script-table' is a char-table of script names.
-
-**** `char-width-table' is a char-table of character widths.
-
-**** `print-charset-text-property' controls how to handle `charset' text
-property on printing a string.
-
-**** `printable-chars' is a char-table of printable characters.
-
-** Code conversion changes
-
-*** The new function `define-coding-system' should be used to define a
-coding system instead of `make-coding-system' (which is now obsolete).
-
-*** The functions `encode-coding-region' and `decode-coding-region'
-have an optional 4th argument to specify where the result of
-conversion should go.
-
-*** The functions `encode-coding-string' and `decode-coding-string'
-have an optional 4th argument specifying a buffer to store the result
-of conversion.
-
-*** The new variable `inhibit-null-byte-detection' controls whether to
-consider text with null bytes as binary data. By default, it is
-`nil', and Emacs uses `no-conversion' for any text containing null
-bytes.
-
-*** The functions `set-coding-priority' and `make-coding-system' are obsolete.
-
-*** New functions:
-
-**** `with-coding-priority' executes Lisp code using the specified
-coding system priority order.
-
-**** `check-coding-systems-region' checks if the text in the region is
-encodable by the specified coding systems.
-
-**** `coding-system-aliases' returns a list of aliases of a coding system.
-
-**** `coding-system-charset-list' returns a list of charsets supported
-by a coding system.
-
-**** `coding-system-priority-list' returns a list of coding systems
-ordered by their priorities.
-
-**** `set-coding-system-priority' sets priorities of coding systems.
-
-**** `coding-system-from-name' returns a coding system matching with
-the argument name.
-
-** There is a new input method, Robin, different from Quail.
-It has three functionalities:
- i) a simple input method (converts an ASCII sequence into a string).
-ii) converts an existing buffer substring into another string
-iii) reverse conversion (each character produced by a
-robin rule can hold the original ASCII sequence as a char-code-property)
-
-*** The new function `robin-define-package' defines a Robin package.
-
-*** The new function `robin-modify-package' modifies an existing Robin package.
-
-*** The new function `robin-use-package' starts using a Robin package
-as an input method.
-
-*** The new function `string-to-unibyte' is like `string-as-unibyte'
-but signals an error if STRING contains a non-ASCII, non-eight-bit
-character.
-
-** Changes related to the new font backend
-
-*** Which font backends to use can be specified by the X resource
-"FontBackend". For instance, to use both X core fonts and Xft fonts:
-
-Emacs.FontBackend: x,xft
-
-If this resource is not set, Emacs tries to use all font backends
-available on your graphic device.
-
-*** New frame parameter `font-backend' specifies a list of
-font-backends supported by the frame's graphic device. On X, they are
-currently `x' and `xft'.
-
-*** The function `set-fontset-font' now accepts a script name as the
-second argument, and has an optional 5th argument to control how to
-set the font.
-
-*** New functions:
-
-**** `fontp' checks if the argument is a font-spec or font-entity.
-
-**** `font-spec' creates a new font-spec object.
-
-**** `font-get' returns a font property value.
-
-**** `font-put' sets a font property value.
-
-**** `font-face-attributes' returns a plist of face attributes set by a font.
-
-**** `list-fonts' returns a list of font-entities matching a font spec.
-
-**** `find-font' returns the font-entity best matching the given font spec.
-
-**** `font-family-list' returns a list of family names of available fonts.
-
-**** `font-xlfd-name' returns an XLFD name of a given font spec, font
-entity, or font object.
-
-**** `clear-font-cache' clears all font caches.
-
-** Changes related to multiple-terminal (multi-tty) support
-
-*** $TERM is now set to `dumb' for subprocesses. If you want to know the
-$TERM inherited by Emacs you will have to look inside initial-environment.
-
-*** $DISPLAY is now dynamically inherited from the frame's `display'.
-
-*** The `window-system' variable is now frame-local. The new
-`initial-window-system' variable contains the `window-system' value
-for the first frame. `window-system' is also now a function that
-takes a frame argument.
-
-*** The `keyboard-translate-table' variable and the terminal and
-keyboard coding systems are now terminal-local.
-
-*** You can specify a terminal device (`tty' parameter) and a terminal
-type (`tty-type' parameter) to `make-terminal-frame'.
-
-*** The function `make-frame-on-display' now works during a tty
-session.
-
-*** A new `terminal' data type.
-The functions `get-device-terminal', `terminal-parameters',
-`terminal-parameter', `set-terminal-parameter' use this data type.
-
-*** Function key sequences are now mapped using `local-function-key-map',
-a new variable. This inherits from the global variable function-key-map,
-which is not used directly any more.
-
-*** New hooks:
-
-**** before-hack-local-variables-hook is called after setting new
-variable file-local-variables-alist, and before actually applying the
-file-local variables.
-
-**** `suspend-tty-functions' and `resume-tty-functions' are called
-after a tty frame has been suspended or resumed, respectively. The
-functions are called with the terminal id of the frame being
-suspended/resumed as a parameter.
-
-**** The special hook `delete-terminal-functions' is called before
-deleting a terminal.
-
-*** New functions:
-
-**** `delete-terminal'
-
-**** `suspend-tty'
-
-**** `resume-tty'.
-
-*** `initial-environment' holds the environment inherited from Emacs's parent.
-
-** Redisplay changes
-
-*** For underlined characters, the distance between the underline and
-the baseline is controlled by a new variable, `underline-minimum-offset'.
-
-*** You can now pass the value of the `invisible' property to
-invisible-p to check whether it would cause the text to be invisible.
-This is convenient when checking invisibility of text with no buffer
-position (e.g. in before/after-strings).
-
-*** `clear-image-cache' can be told to flush only images of a specific file.
-
-*** `vertical-motion' can now be given a goal column.
-It now accepts a cons cell (COLS . LINES) in its first argument, which
-says to stop, where possible, at a pixel x-position equal to COLS
-times the default column width.
-
-*** redisplay-end-trigger-functions, set-window-redisplay-end-trigger,
-and window-redisplay-end-trigger are obsolete. Use `jit-lock-register'
-instead.
-
-*** The new variables `wrap-prefix' and `line-prefix' specify display
-specs which are appended at display-time to every continuation line
-and non-continuation line, respectively. In addition, Emacs
-recognizes the `wrap-prefix' and `line-prefix' text or overlay
-properties; these have the same effects as the variables of the same
-name, but take precedence.
-
-** The Lisp interpreter now treats non-breaking space as whitespace.
-
-** Miscellaneous new functions
-
-*** `apply-partially' performs a "curried" application of a function.
-
-*** `buffer-swap-text' swaps text between two buffers. This can be
-useful for modes such as tar-mode, archive-mode, RMAIL.
-
-*** `combine-and-quote-strings' produces a single string from a list of strings
-sticking a separator string in between each pair, and quoting those
-strings that include the separator as their substring. Useful for
-consing shell command lines from the individual arguments.
-
-*** `custom-note-var-changed' tells Custom to treat the change in a
-certain variable as having been made within Custom.
-
-*** `face-all-attributes' returns an alist describing all the basic
-attributes of a given face.
-
-*** `format-seconds' converts a number of seconds into a readable
-string of days, hours, etc.
-
-*** `image-refresh' refreshes all images associated with a given image
-specification.
-
-*** `locate-user-emacs-file' helps packages to select the appropriate
-place to save user-specific files. It defaults to `user-emacs-directory'
-unless the file already exists at $HOME.
-
-*** `read-color' reads a color name using the minibuffer.
-
-*** `read-shell-command' does what its name says, with completion. It
-uses the minibuffer-local-shell-command-map for that.
-
-*** `split-string-and-unquote' splits a string into a list of substrings
-on the boundaries of a given delimiter, and unquotes the substrings that
-are quoted. Useful for taking apart shell commands.
-
-*** 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.
-
-*** The two new functions `make-serial-process' and
-`serial-process-configure' provide a Lisp interface to the new serial
-port support (see Emacs changes, above).
-
-** Miscellaneous new variables
-
-*** `auto-save-include-big-deletions', if non-nil, means auto-save is
-not turned off automatically after a big deletion.
-
-*** `read-circle', if nil, disables the reading of recursive Lisp
-structures using the #N= and #N# syntax.
-
-*** `this-command-keys-shift-translated' is non-nil if the key
-sequence invoking the current command was found by shift-translation.
-
-*** `window-point-insertion-type' determines the insertion-type of the
-marker used for window-point.
-
-*** bookmark provides `bookmark-make-record-function' so special major
-modes like Info can teach bookmark.el how to save and restore the
-relevant data.
-
-*** `fill-forward-paragraph-function' specifies which function the
-filling code should use to find paragraph boundaries.
-
-\f
-* New Packages for Lisp Programming in Emacs 23.1
-
-** The new package avl-tree.el deals with the AVL tree data structure.
-
-** The new package check-declare.el verifies the accuracy of
-declare-function macros (see Lisp Changes, above).
-
-** find-cmd.el can build `find' commands using lisp syntax.
-
-** The package misearch.el has been added. It allows Isearch to search
-through multiple buffers. A variable `multi-isearch-next-buffer-function'
-defines the function to call to get the next buffer to search in the series
-of multiple buffers. Top-level functions `multi-isearch-buffers',
-`multi-isearch-buffers-regexp', `multi-isearch-files' and
-`multi-isearch-files-regexp' accept a single argument that specifies
-a list of buffers/files to search for a string/regexp.
-
-** The new major mode `special-mode' is intended as a parent for
-major modes such as those that set the "'mode-class 'special" property.
-
-\f
-----------------------------------------------------------------------
-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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
-
-\f
-Local variables:
-mode: outline
-paragraph-separate: "[ \f]*$"
-end:
-
-arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2
+GNU Emacs NEWS -- history of user-visible changes.
+
+Copyright (C) 2010-2011 Free Software Foundation, Inc.
+See the end of the file for license conditions.
+
+Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
+If possible, use M-x report-emacs-bug.
+
+This file is about changes in Emacs version 24.
+
+See files NEWS.23, 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.
+
+\f
+* Installation Changes in Emacs 24.1
+
+** Configure links against libselinux if it is found.
+You can disable this by using --without-selinux.
+
+---
+** By default, the installed Info and man pages are compressed.
+You can disable this by configuring --without-compress-info.
+
+---
+** There are new configure options:
+--with-mmdf, --with-mail-unlink, --with-mailhost.
+These provide no new functionality, they just remove the need to edit
+lib-src/Makefile by hand in order to use the associated features.
+
+---
+** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
+to configure. Note that other libraries used by Emacs, RSVG and GConf,
+also depend on Gtk+. You can disable them with --without-rsvg and
+--without-gconf.
+
+** There is a new configure option --enable-use-lisp-union-type.
+This is only useful for Emacs developers to debug certain types of bugs.
+This is not a new feature; only the configure flag is new.
+
+---
+** New translation of the Emacs Tutorial in Hebrew is available.
+Type `C-u C-h t' to choose it in case your language setup doesn't
+automatically select it.
+
+\f
+* Startup Changes in Emacs 24.1
+
+** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
+command line arguments, and the EMACS_UNIBYTE environment variable, no
+longer have any effect. (They were declared obsolete in Emacs 23.)
+
+** New command line option `--no-site-lisp' removes site-lisp directories
+from load-path. -Q now implies this.
+
+** On Windows, Emacs now warns when the obsolete _emacs init file is used,
+and also when HOME is set to C:\ by default.
+
+\f
+* Changes in Emacs 24.1
+
+** emacsclient changes
+
+*** New emacsclient argument --parent-id ID can be used to open a
+client frame in parent X window ID, via XEmbed. This works like the
+--parent-id argument to Emacs.
+
++++
+*** New emacsclient argument -q/--quiet suppresses some status messages.
+
+*** If emacsclient shuts down as a result of Emacs signalling an
+error, its exit status is 1.
+
+** Completion
+*** Many packages have been changed to use completion-at-point rather than
+their own completion code.
+
+*** Completion in a non-minibuffer now tries to detect the end of completion
+and pops down the *Completions* buffer accordingly.
+
+*** Completion can cycle, depending on completion-cycle-threshold.
+
+*** New completion style `substring'.
+
+*** Completion style can be set per-category `completion-category-overrides'.
+
+*** Completion of buffers now uses substring completion by default.
+
+*** `completing-read' can be customized using the new variable
+`completing-read-function'.
+
+** auto-mode-case-fold is now enabled by default.
+
+** Internationalization changes
+
++++
+*** Emacs now supports display and editing of bidirectional text.
+
+See the node "Bidirectional Editing" in the Emacs Manual for some
+initial documentation.
+
+To turn this on in any given buffer, set the buffer-local variable
+`bidi-display-reordering' to a non-nil value. The default is nil.
+
+The buffer-local variable `bidi-paragraph-direction', if non-nil,
+forces each paragraph in the buffer to have its base direction
+according to the value of this variable. Possible values are
+`right-to-left' and `left-to-right'. If the value is nil (the
+default), Emacs determines the base direction of each paragraph from
+its text, as specified by the Unicode Bidirectional Algorithm.
+
+The function `current-bidi-paragraph-direction' returns the actual
+value of paragraph base direction at point.
+
+Reordering of bidirectional text for display in Emacs is a "Full
+bidirectionality" class implementation of the Unicode Bidirectional
+Algorithm.
+
+Note that some advanced display features, such as overlay strings and
+`display' text properties, do not yet work correctly when
+bidirectional text is reordered for display.
+
++++
+*** Enhanced support for characters that have no glyphs in available fonts.
+If a character has no glyphs in any of the available fonts, Emacs by
+default will display it either as a hexadecimal code in a box or as a
+thin 1-pixel space. In addition to these two methods, Emacs can
+display these characters as empty box, as an acronym, or not display
+them at all. To change how these characters are displayed, customize
+the variable `glyphless-char-display-control'.
+
+On character terminals these methods are used for characters that
+cannot be encoded by the `terminal-coding-system'.
+
+*** There are two new input methods for Persian/Farsi: farsi and farsi-translit.
+
+** GTK scroll-bars are now placed on the right by default.
+Use `set-scroll-bar-mode' to change this.
+
+** GTK tool bars can have just text, just images or images and text.
+Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
+is taken from the desktop settings.
+
+** GTK tool bars can be placed on the left/right or top/bottom of the frame.
+The frame-parameter tool-bar-position controls this. It takes the values
+top, left, right or bottom. The Options => Show/Hide menu has entries
+for this.
+
+** ImageMagick support.
+It is now possible to use the ImageMagick library to load many new
+image formats in Emacs. By default, Emacs links with the ImageMagick
+libraries if they are present at build time. This needs ImageMagick
+6.2.8 or newer (versions newer than 6.0.7 _may_ work but have not been
+tested). To disable ImageMagick support, use the configure option
+`--without-imagemagick'.
+
+The new function `imagemagick-types' returns a list of image file
+extensions that your installation of ImageMagick supports. The
+function `imagemagick-register-types' enables ImageMagick support for
+these image types, minus those listed in `imagemagick-types-inhibit'.
+
+See the Emacs Lisp Reference Manual for more information.
+
+** The colors for selected text (the region face) are taken from the GTK
+theme when Emacs is built with GTK.
+
+** Emacs uses GTK tooltips by default if built with GTK. You can turn that
+off by customizing x-gtk-use-system-tooltips.
+
+** Lucid menus and dialogs can display antialiased fonts if Emacs is built
+with Xft. To change font, use the X resource font, for example:
+Emacs.pane.menubar.font: Courier-12
+
+** On graphical displays, the mode-line no longer ends in dashes.
+Also, the first dash (which does not indicate anything) is just
+displayed as a space.
+
+** On Nextstep/OSX, the menu bar can be hidden by customizing
+ns-auto-hide-menu-bar.
+
+** Basic SELinux support has been added.
+This requires Emacs to be linked with libselinux at build time.
+
+*** Emacs preserves the SELinux file context when backing up, and
+optionally when copying files. To this end, copy-file has an extra
+optional argument, and backup-buffer and friends include the SELinux
+context in their return values.
+
+*** The new functions file-selinux-context and set-file-selinux-context
+get and set the SELinux context of a file.
+
+*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
+for remote machines which support SELinux.
+
++++
+** The function format-time-string now supports the %N directive, for
+higher-resolution time stamps.
+
+** The function kill-emacs is now run upon receipt of the signals SIGTERM
+and SIGHUP, and upon SIGINT in batch mode.
+
+** kill-emacs-hook is now also run in batch mode.
+If you have code that adds something to kill-emacs-hook, you should
+consider if it is still appropriate to add it in the noninteractive case.
+
+** New scrolling commands `scroll-up-command' and `scroll-down-command'
+(bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
+of buffer at first key-press (instead move to top/bottom of buffer)
+when a new variable `scroll-error-top-bottom' is non-nil.
+
+** New scrolling commands `scroll-up-line' and `scroll-down-line'
+scroll a line instead of full screen.
+
+** New property `scroll-command' should be set on a command's symbol to
+define it as a scroll command affected by `scroll-preserve-screen-position'.
+
++++
+** If you customize `scroll-conservatively' to a value greater than 100,
+Emacs will never recenter point in the window when it scrolls due to
+cursor motion commands or commands that move point (e.f., `M-g M-g').
+Previously, you needed to use `most-positive-fixnum' as the value of
+`scroll-conservatively' to achieve the same effect.
+
+---
+** ``Aggressive'' scrolling now honors the scroll margins.
+If you customize `scroll-up-aggressively' or
+`scroll-down-aggressively' and move point off the window, Emacs now
+scrolls the window so as to avoid positioning point inside the scroll
+margin.
+
+** Trash changes
+
+*** `delete-by-moving-to-trash' now only affects commands that specify
+trashing. This avoids inadvertently trashing temporary files.
+
+*** Calling `delete-file' or `delete-directory' with a prefix argument
+now forces true deletion, regardless of `delete-by-moving-to-trash'.
+
+** New option `list-colors-sort' defines the color sort order
+for `list-colors-display'.
+
+** An Emacs Lisp package manager is now included.
+This is a convenient way to download and install additional packages,
+from a package repository at elpa.gnu.org.
+
+*** `M-x list-packages' shows a list of packages, which can be
+selected for installation.
+
+*** New command `describe-package', bound to `C-h P'.
+
+*** By default, all installed packages are loaded and activated
+automatically when Emacs starts up. To disable this, set
+`package-enable-at-startup' to nil. To change which packages are
+loaded, customize `package-load-list'.
+
+** An Emacs Lisp testing tool is now included.
+Emacs Lisp developers can use this tool to write automated tests for
+their code. See the ERT info manual for details.
+
+** Custom Themes
+
+*** `M-x customize-themes' lists Custom themes which can be enabled.
+
+*** New option `custom-theme-load-path' is the load path for themes.
+Emacs no longer looks for custom themes in `load-path'. The default
+is to search in `custom-theme-directory', followed by a built-in theme
+directory named "themes/" in `data-directory'.
+
+*** New option `custom-safe-themes' records known-safe theme files.
+If a theme is not in this list, Emacs queries before loading it, and
+offers to save the theme to `custom-safe-themes' automatically. By
+default, all themes included in Emacs are treated as safe.
+
+** The user option `remote-file-name-inhibit-cache' controls whether
+the remote file-name cache is used for read access.
+
++++
+** The use of a "mode: minor" specification in a file local variables section
+to enable a minor-mode is deprecated. Instead, use "eval: (minor-mode)".
+
+** The standalone programs lib-src/digest-doc and sorted-doc have been
+replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
+
+---
+** The standalone program `fakemail' has been removed.
+If you need it, feedmail.el ought to provide a superset of the functionality.
+
+** The variable `focus-follows-mouse' now always defaults to nil.
+
+** Function `sha1' is now implemented in C for speed.
+The elisp implementation sha1.el is removed. Feature sha1 is provided
+by default.
+
+\f
+* Editing Changes in Emacs 24.1
+
+** Search changes
+
++++
+*** C-y in Isearch is now bound to isearch-yank-kill, instead of
+isearch-yank-line.
+
+---
+*** M-y in Isearch is now bound to isearch-yank-pop, instead of
+isearch-yank-kill.
+
++++
+*** M-s C-e in Isearch is now bound to isearch-yank-line.
+
++++
+** There is a new command `count-words-region', which does what you expect.
+
+** completion-at-point now handles tags and semantic completion.
+
+** The default value of `backup-by-copying-when-mismatch' is now t.
+
+** The command `just-one-space' (C-SPC), if given a negative argument,
+also deletes newlines around point.
+
+** Deletion changes
+
+*** New option `delete-active-region'.
+If non-nil, C-d, [delete], and DEL delete the region if it is active
+and no prefix argument is given. If set to `kill', these commands
+kill instead.
+
+*** New command `delete-forward-char', bound to C-d and [delete].
+This is meant for interactive use, and obeys `delete-active-region'.
+The command `delete-char' does not obey `delete-active-region'.
+
+*** `delete-backward-char' is now a Lisp function.
+Apart from obeying `delete-active-region', its behavior is unchanged.
+However, the byte compiler now warns if it is called from Lisp; you
+should use delete-char with a negative argument instead.
+
+*** The option `mouse-region-delete-keys' has been deleted.
+
+** Selection changes.
+
+The default handling of clipboard and primary selections was changed
+to conform with modern X applications. In short, most commands for
+killing and yanking text now use the clipboard, while mouse commands
+use the primary selection.
+
+In the following, we provide a list of these changes, followed by a
+list of steps to get the old behavior back if you prefer that.
+
+*** `mouse-drag-copy-region' now defaults to nil.
+*** `select-active-regions' now defaults to t.
+Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
+the kill-ring. The selected text is put in the primary selection, if
+the system possesses a separate primary selection facility (e.g. X).
+
+**** `select-active-regions' also accepts a new value, `only'.
+This means to only set the primary selection for temporarily active
+regions (usually made by mouse-dragging or shift-selection);
+"ordinary" active regions, such as those made with C-SPC followed by
+point motion, do not alter the primary selection.
+
+*** mouse-2 is now bound to `mouse-yank-primary'.
+This pastes from the primary selection, ignoring the kill-ring.
+Previously, mouse-2 was bound to `mouse-yank-at-click'.
+
+*** `x-select-enable-clipboard' now defaults to t on all platforms.
+*** `x-select-enable-primary' now defaults to nil.
+Thus, commands that kill text or copy it to the kill-ring (such as
+M-w, C-w, and C-k) also use the clipboard---not the primary selection.
+
+**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
+exactly equivalent to, respectively M-w, C-w, and C-y.
+
+**** Note that on MS-Windows, `x-select-enable-clipboard' was already
+non-nil by default, as Windows does not support the primary selection
+between applications.
+
+*** To return to the previous behavior, do the following:
+
+**** Change `select-active-regions' to nil.
+**** Change `mouse-drag-copy-region' to t.
+**** Change `x-select-enable-primary' to t (on X only).
+**** Change `x-select-enable-clipboard' to nil.
+**** Bind `mouse-yank-at-click' to mouse-2.
+
+*** Support for X cut buffers has been removed.
+
+*** Support for X clipboard managers has been added.
+
+** New command `rectangle-number-lines', bound to `C-x r N', numbers
+the lines in the current rectangle. With an prefix argument, this
+prompts for a number to count from and for a format string.
+
+** The command shell prompts for the shell path name, when the default
+directory is a remote file name and neither environment variable
+$ESHELL nor variable `explicit-shell-file-name' is set.
+
+\f
+* Changes in Specialized Modes and Packages in Emacs 24.1
+
+** comint and modes derived from it use the generic completion code.
+
+** Compilation mode
+
+*** Compilation mode can be used without font-lock-mode.
+`compilation-parse-errors-function' is now obsolete.
+
+*** `compilation-filter-start' is let-bound to the start of the text
+inserted by the compilation filter function, when calling
+compilation-filter-hook.
+
+** The Landmark game is now invoked with `landmark', not `lm'.
+
+** Prolog mode has been completely revamped, with lots of additional
+functionality such as more intelligent indentation, electricity, support for
+more variants, including Mercury, and a lot more.
+
+** shell-mode can track your cwd by reading it from your prompt.
+Just set shell-dir-cookie-re to an appropriate regexp.
+
+** Modula-2 mode provides auto-indentation.
+
+** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
+
+** FIXME: xdg-open for browse-url and reportbug, 2010/08.
+
+** Archive Mode has basic support to browse 7z archives.
+
+** browse-url has gotten a new variable that is used for mailto: URLs,
+`browse-url-mailto-function', which defaults to `browse-url-mail'.
+
+** `url-queue-retrieve' downloads web pages asynchronously, but allow
+controlling the degree of parallelism.
+
+** Directory local variables can apply to file-less buffers, in certain modes
+(eg dired, vc-dir, log-edit). For example, adding
+"(diff-mode . ((mode . whitespace)))" to your .dir-locals.el file,
+will turn on `whitespace-mode' for *vc-diff* buffers. Modes should
+call `hack-dir-local-variables-non-file-buffer' to support this.
+
++++
+** You can prevent directory local variables from applying to subdirectories.
+Add an element (subdirs . nil) to the alist portion of any variables
+settings to indicate said section should not be applied to subdirectories.
+
+** ERC changes
+
+*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
+If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
+successful NickServ identification, or after `erc-autojoin-delay'
+seconds. The default value, 'ident, means to autojoin immediately
+after connecting.
+
+*** New variable `erc-coding-system-precedence': If we use `undecided'
+as the server coding system, this variable will then be consulted.
+The default is to decode strings that can be decoded as utf-8 as
+utf-8, and do the normal `undecided' decoding for the rest.
+
+** Eshell changes
+
+*** The default value of eshell-directory-name is a directory named
+"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
+exists, that is used instead.
+
+** In ido-mode, C-v is no longer bound to ido-toggle-vc.
+The reason is that this interferes with cua-mode.
+
+** partial-completion-mode is now obsolete.
+You can get a comparable behavior with:
+(setq completion-styles '(partial-completion initials))
+(setq completion-pcm-complete-word-inserts-delimiters t)
+
+** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
+
+** server can listen on a specific port using the server-port option.
+
+** Calendar, Diary, and Appt
+
++++
+*** Diary entries can contain non-printing `comments'.
+See the variable `diary-comment-start'.
+
++++
+*** Appointments can specify their individual warning times.
+See the variable `appt-warning-time-regexp'.
+
++++
+*** New function `diary-hebrew-birthday'.
+
+---
+*** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array'
+may no longer be nil, but must all be strings.
+
+---
+*** The obsolete (since Emacs 22.1) method of enabling the appt package
+by adding appt-make-list to diary-hook has been removed. Use appt-activate.
+
+---
+*** Some appt variables (obsolete since Emacs 22.1) have been removed:
+appt-issue-message (use the function appt-activate)
+appt-visible/appt-msg-window (use the variable appt-display-format)
+
+---
+*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
+view-diary-entries, list-diary-entries, show-all-diary-entries
+
+** Customize
+
+*** Customize buffers now contain a search field.
+The search is performed using `customize-apropos'.
+To turn off the search field, set custom-search-field to nil.
+
+*** Custom options now start out hidden if at their default values.
+Use the arrow to the left of the option name to toggle visibility.
+
+*** custom-buffer-sort-alphabetically now defaults to t.
+
+*** The color widget now has a "Choose" button, which allows you to
+choose a color via list-colors-display.
+
+** Dired-x
+
+*** dired-jump and dired-jump-other-window called with a prefix argument
+read a file name from the minibuffer instead of using buffer-file-name.
+
++++
+*** The `dired local variables' feature provided by Dired-x is obsolete.
+The standard directory local variables feature replaces it.
+
+** SQL Mode enhancements.
+
+*** `sql-dialect' is a synonym for `sql-product'.
+
+*** Added ability to login with a port on MySQL and Postgres.
+The custom variable `sql-port' can be specified for connection to
+MySQL or Postgres servers. By default, the port is not listed in
+either login parameter, but will be added to the command line if set
+to a non-zero value.
+
+*** Dynamic selection of product in an SQL interactive session.
+If you use `sql-product-interactive' to start an SQL interactive
+session it uses the current value of `sql-product'. Preceding the
+invocation with C-u will force it to ask for the product before
+creating the session.
+
+*** Renaming a SQL interactive buffer when it is created.
+Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
+`sql-mysql', etc.) with C-u will force a new interactive session to be
+started and will prompt for the new name. This will reduce the need
+for `sql-rename-buffer' is most common use cases.
+
+*** Command continuation prompts in SQL interactive mode are suppressed.
+Multiple line commands in SQL interactive mode, generate command
+continuation prompts which needlessly confuse the output. These
+prompts are now filtered out from the output. This change impacts
+multiple line SQL statements entered with C-j between each line,
+statements yanked into the buffer and statements sent with
+`sql-send-*' functions.
+
+*** Custom variables control prompting for login parameters.
+Each supported product has a custom variable `sql-*-login-params'
+which is a list of the parameters to be prompted for before a
+connection is established.
+
+The lists consist of the following five tokens: `user', `password',
+`database', `server', and `port'. The order in which they appear is
+the order in which they are prompted. The tokens symbols can be
+replaced by a sublist starting with the token and followed by a plist
+which control the prompting for values. The tokens `user',
+`database', and `server' each can take a property of :default which
+specifies the value to be used if no value is entered. The
+`database', `server', and `port' tokens handle the :completion
+property which restricts the entry to either one of the values in the
+list or to one of the values returned by the function provided as the
+property value. The `database' and `server' tokens also accept the
+:file property whose value is a regexp to identify useful file names.
+
+ (user :default DEF)
+ (database :default DEF
+ :file FILEPAT
+ :completion COMPLETE)
+ (server :default DEF
+ :file FILEPAT
+ :completion COMPLETE)
+
+The FILEPAT when :file is specified is a regexp that will match valid
+file names (without the directory portion). Generally these strings
+will be of the form ".+\.SUF" where SUF is the desired file suffix.
+
+When :completion is specified, the COMPLETE corresponds to the
+PREDICATE argument to the `completing-read' function (a list of
+possible values or a function returning such a list).
+
+*** Added `sql-connection-alist' to record login parameter values.
+An alist for recording different username, database and server
+values. If there are multiple databases that you connect to the
+parameters needed can be stored in this alist.
+
+For example, the following might be set in the user's init.el:
+
+ (setq sql-connection-alist
+ '((dev (sql-product 'sqlite)
+ (sql-database "/home/mmaug/dev.db"))
+ (prd (sql-product 'oracle)
+ (sql-user "mmaug")
+ (sql-database "iprd2a"))))
+
+This defines two connections named "dev" and "prd".
+
+*** Added `sql-connect' to use predefined connections.
+Sets the login parameters based on the values in the
+`sql-connection-alist' and start a SQL interactive session. Any
+values specified in the connection will not be prompted for.
+
+In the example above, if the user were to invoke M-x sql-connect, they
+would be prompted for the connection. The user can respond with
+either "dev" or "prd". The "dev" connection would connect to the
+SQLite database without prompting; the "prd" connection would prompt
+for the users password and then connect to the Oracle database.
+
+**** Added SQL->Start... submenu when connections are defined.
+When connections have been defined, there is a submenu available that
+allows the user to select one to start a SQLi session. The "Start
+SQLi Session" item moves to the "Start..." submenu when cnnections
+have been defined.
+
+**** Added "Save Connection" menu item in SQLi buffers.
+When a SQLi session is not started by a connection then
+`sql-save-connection' will gather the login params specified for the
+session and save them as a new connection.
+
+*** List database objects and details.
+Once a SQL interactive session has been started, you can get a list of
+the objects in the database and see details of those objects. The
+objects shown and the details available are product specific.
+
+**** List all objects.
+Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
+objects" will list all the objects in the database. At a minimum it
+lists the tables and views in the database. Preceding the command by
+universal argument may provide additional details or extend the
+listing to include other schemas objects. The list will appear in a
+separate window in view-mode.
+
+**** List Table details.
+Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
+details" will ask for the name of a database table or view and display
+the list of columns in the relation. Preceding the command with the
+universal argument may provide additional details about each column.
+The list will appear in a separate window in view-mode.
+
+*** Added option `sql-send-terminator'.
+When set makes sure that each command sent with `sql-send-*' commands
+are properly terminated and submitted to the SQL processor.
+
+*** Added option `sql-oracle-scan-on'.
+When set commands sent to Oracle's SQL*Plus are scanned for strings
+starting with an ampersand and the user is asked for replacement text.
+In general, the SQL*Plus option SCAN should always be set OFF under
+SQL interactive mode and this option used in its place.
+
+*** SQL interactive mode will replace tabs with spaces.
+This prevents the command interpreter for MySQL and Postgres from
+listing object name completions when being sent text via
+`sql-send-*' functions.
+
+*** An API for manipulating SQL product definitions has been added.
+
+** sregex.el is now obsolete, since rx.el is a strict superset.
+
+** s-region.el and pc-select are now declared obsolete,
+superseded by shift-select-mode enabled by default in 23.1.
+** pc-mode.el is also declared obsolete.
+** gdb-mi
+
+*** GDB User Interface migrated to GDB Machine Interface and now
+supports multithread non-stop debugging and debugging of several
+threads simultaneously.
+
+** D-Bus
+
+*** It is possible now, to access alternative buses than the default
+system or session bus.
+
+*** dbus-register-{service,method,property}
+The -method and -property functions do not automatically register
+names anymore.
+
+The new function dbus-register-service registers a service known name
+on a D-Bus without simultaneously registering a property or a method.
+
+** Tramp
+
+*** There exists a new inline access method "ksu" (kerberized su).
+
+*** The following access methods are discontinued: "ssh1_old",
+"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
+
+*** The option `ange-ftp-binary-file-name-regexp' has changed its
+default value to "".
+
+** VC and related modes
+
+*** Support for pulling on distributed version control systems.
+The vc-pull command runs a "pull" operation, if it is supported.
+This updates the current branch from upstream. A prefix argument
+means to prompt the user for specifics, e.g. a pull location.
+
+**** `vc-update' is now an alias for `vc-pull'.
+
+**** Currently supported by Bzr, Git, and Mercurial.
+
+*** Support for merging on distributed version control systems.
+The vc-merge command now runs a "merge" operation, if it is supported.
+This merges another branch into the current one. This command prompts
+the user for specifics, e.g. a merge source.
+
+**** Currently supported for Bzr, Git, and Mercurial.
+
+*** Log entries in some Log View buffers can be toggled to display a
+longer description by typing RET (log-view-toggle-entry-display).
+In the Log View buffers made by `C-x v L' (vc-print-root-log), you can
+use this to display the full log entry for the revision at point.
+
+**** Currently supported for Bzr, Git, and Mercurial.
+
+**** Packages using Log View mode can enable this functionality by
+binding `log-view-expanded-log-entry-function' to a suitable function.
+
+*** New command `vc-ediff' allows visual comparison of two revisions
+of a file similar to `vc-diff', but using ediff backend.
+
+** Miscellaneous
+
+---
+*** `copyright-fix-years' can optionally convert consecutive years to ranges.
+
+*** New command `nato-region' converts text to NATO phonetic alphabet.
+
+*** The new command `info-display-manual' will display an Info manual
+specified by its name. If that manual is already visited in some Info
+buffer within the current session, the command will display that
+buffer. Otherwise, it will load the manual and display it. This is
+handy if you have many manuals in many Info buffers, and don't
+remember the name of the buffer visiting the manual you want to
+consult.
+
+\f
+* New Modes and Packages in Emacs 24.1
+
+** Occur Edit mode applies edits made in *Occur* buffers to the
+original buffers. It is bound to C-x C-q in Occur mode.
+
+** New global minor modes electric-pair-mode, electric-indent-mode,
+and electric-layout-mode.
+
+** tabulated-list.el provides a generic major mode for tabulated data,
+from which other modes can be derived.
+
+** pcase.el provides the ML-style pattern matching macro `pcase'.
+
+** secrets.el is an implementation of the Secret Service API, an
+interface to password managers like GNOME Keyring or KDE Wallet. The
+Secret Service API requires D-Bus for communication. The command
+`secrets-show-secrets' offers a buffer with a visualization of the
+secrets.
+
+** notifications.el provides an implementation of the Desktop
+Notifications API. It requires D-Bus for communication.
+
+** soap-client.el supports access to SOAP web services from Emacs.
+soap-inspect.el is an interactive inspector for SOAP WSDL structures.
+
+** xmodmap-generic-mode for xmodmap files.
+
+\f
+* Incompatible Lisp Changes in Emacs 24.1
+
+---
+** `char-direction-table' and the associated function `char-direction'
+were deleted. They were buggy and inferior to the new support of
+bidirectional editing introduced in Emacs 24. If you need the
+bidirectional properties of a character, use `get-char-code-property'
+with the last argument `bidi-class'.
+
+** `copy-directory' now copies the source directory as a subdirectory
+of the target directory, if the latter is an existing directory. The
+new optional arg COPY-CONTENTS, if non-nil, makes the function copy
+the contents directly into a pre-existing target directory.
+
+** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
+passes it to the mail user agent function. This argument specifies an
+action for returning to the caller after finishing with the mail.
+This is currently used by Rmail to delete a mail window.
+
+** For mouse click input events in the text area, the Y pixel
+coordinate in the POSITION list now counts from the top of the text
+area, excluding any header line. Previously, it counted from the top
+of the header line.
+
+** Remove obsolete name `e' (use `float-e' instead).
+
+** A backquote not followed by a space is now always treated as new-style.
+
+** Test for special mode-class was moved from view-file to view-buffer.
+FIXME: This only says what was changed, but not what are the
+programmer-visible consequences.
+
+** Passing a nil argument to a minor mode function now turns the mode
+ON unconditionally.
+
+** During startup, Emacs no longer adds entries for `menu-bar-lines'
+and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
+With these alist entries omitted, `make-frame' checks the value of the
+variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
+a menu-bar or tool-bar, respectively. If the alist entries are added,
+they override the value of `menu-bar-mode'/`tool-bar-mode'.
+
+** Regions created by mouse dragging are now normal active regions,
+similar to the ones created by shift-selection. In previous Emacs
+versions, these regions were delineated by `mouse-drag-overlay', which
+has now been removed.
+
+** cl.el no longer provides `cl-19'.
+
+** The following functions and aliases, obsolete since at least Emacs 21.1,
+have been removed:
+comint-kill-output, decompose-composite-char, outline-visible,
+internal-find-face, internal-get-face, frame-update-faces,
+frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
+x-make-font-bold, x-make-font-demibold, x-make-font-unbold
+x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
+x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
+iswitchb-default-keybindings, char-bytes, isearch-return-char,
+make-local-hook
+
+** The following variables and aliases, obsolete since at least Emacs 21.1,
+have been removed:
+checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
+font-lock-defaults-alist
+
+** The following files, obsolete since at least Emacs 21.1, have been removed:
+sc.el, x-menu.el, rnews.el, rnewspost.el
+
+** FIXME finder-inf.el changes.
+
+\f
+* Lisp changes in Emacs 24.1
+
+** Completion
+*** New variable completion-extra-properties used to specify extra properties
+of the current completion:
+- :annotate-function, same as the old completion-annotate-function.
+- :exit-function, function to call after completion took place.
+
+*** Functions on completion-at-point-functions can return any of the properties
+valid for completion-extra-properties.
+
+*** completion-annotate-function is obsolete.
+
+*** New `metadata' method for completion tables. The metadata thus returned
+can specify various details of the data returned by `all-completions':
+- `category' is the kind of objects returned (e.g., `buffer', `file', ...),
+ used to select a style in completion-category-overrides.
+- `annotation-function' to add annotations in *Completions*.
+- `display-sort-function' to specify how to sort entries in *Completions*.
+- `cycle-sort-function' to specify how to sort entries when cycling.
+
+** `glyphless-char-display' can now distinguish between graphical and
+text terminal display, via a char-table entry that is a cons cell.
+
+** `open-network-stream' can now be used to open an encrypted stream.
+It now accepts an optional `:type' parameter for initiating a TLS
+connection, directly or via STARTTLS. To do STARTTLS, additional
+parameters (`:end-of-command', `:success', `:capabilities-command')
+must also be supplied.
+
+** Code can now use lexical scoping by default instead of dynamic scoping.
+The `lexical-binding' variable lets code use lexical scoping for local
+variables. It is typically set via file-local variables, in which case it
+applies to all the code in that file.
+
+*** `eval' takes a new optional argument `lexical' to choose the new lexical
+binding instead of the old dynamic binding mode.
+
+*** Lexically scoped interpreted functions are represented with a new form
+of function value which looks like (closure ENV ARGS &rest BODY).
+
+*** New macro `letrec' to define recursive local functions.
+
+*** New function `special-variable-p' to check whether a variable is
+declared as dynamically bound.
+
+** pre/post-command-hook are not reset to nil upon error.
+Instead, the offending function is removed.
+
+** New low-level function run-hook-wrapped.
+
+** `server-eval-at' is provided to allow evaluating forms on different
+Emacs server instances.
+
+** `call-process' allows a `(:file "file")' spec to redirect STDOUT to
+a file.
+
+** byte-compile-disable-print-circle is obsolete.
+** deferred-action-list and deferred-action-function are obsolete.
+** Removed the stack-trace-on-error variable.
+Also the debugger can now "continue" from an error, which means it will jump
+to the error handler as if the debugger had not been invoked instead of
+jumping all the way to the top-level.
+
+** New function `read-char-choice' reads a restricted set of characters,
+discarding any inputs not inside the set.
+
+** `image-library-alist' is renamed to `dynamic-library-alist'.
+The variable is now used to load all kind of supported dynamic libraries,
+not just image libraries. The previous name is still available as an
+obsolete alias.
+
+** New variable syntax-propertize-function to set syntax-table properties.
+Replaces font-lock-syntactic-keywords which are now obsolete.
+This allows syntax-table properties to be set independently from font-lock:
+just call syntax-propertize to make sure the text is propertized.
+Together with this new variable come a new hook
+syntax-propertize-extend-region-functions, as well as two helper functions:
+syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
+as-is; and syntax-propertize-rules which provides a new way to specify
+syntactic rules.
+
+** New hook post-self-insert-hook run at the end of self-insert-command.
+
++++
+** Syntax tables support a new "comment style c" additionally to style b.
+** frame-local variables cannot be let-bound any more.
+** prog-mode is a new major-mode meant to be the parent of programming mode.
+** define-minor-mode accepts a new keyword :variable.
+
+** `delete-file' and `delete-directory' now accept optional arg TRASH.
+Trashing is performed if TRASH and `delete-by-moving-to-trash' are
+both non-nil. Interactively, TRASH defaults to t, unless a prefix
+argument is supplied (see Trash changes, above).
+
+** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
+
+** `facemenu-read-color' is now an alias for `read-color'.
+The command `read-color' now requires a match for a color name or RGB
+triplet, instead of signalling an error if the user provides a invalid
+input.
+
+** Tool-bars can display separators.
+Tool-bar separators are handled like menu separators in menu-bar maps,
+i.e. via menu entries of the form `(menu-item "--")'.
+
+** Image API
+
+*** When the image type is one of listed in `image-animated-types'
+and the number of sub-images in the image is more than one, then the
+new function `create-animated-image' creates an animated image where
+sub-images are displayed successively with the duration defined by
+`image-animate-max-time' and the delay between sub-images defined
+by the Graphic Control Extension of the image.
+
+*** `image-extension-data' is renamed to `image-metadata'.
+
+** XML and HTML parsing
+
+*** If Emacs is compiled with libxml2 support (which is the default),
+two new Emacs Lisp-level functions are defined:
+`libxml-parse-html-region' (which will parse "real world" HTML)
+and `libxml-parse-xml-region' (which parses XML). Both return an
+Emacs Lisp parse tree.
+
+FIXME: These should be front-ended by xml.el.
+
+** GnuTLS
+
+*** Emacs can be compiled with libgnutls support
+This is the default. You will then be able to use the functionality
+in gnutls.el, namely the `open-gnutls-stream' and `gnutls-negotiate'
+functions. It's easiest to use these functions through
+`open-network-stream' because it can upgrade connections through
+STARTTLS opportunistically or use plain SSL, depending on your needs.
+
+Only versions 2.8.x and higher or GnuTLS have been tested.
+
+*** gnutls-log-level
+Set `gnutls-log-level' higher than 0 to get debug output. 1 is for
+important messages, 2 is for debug data, and higher numbers are as per
+the GnuTLS logging conventions. The output is in *Messages*.
+
+** Isearch
+
+*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
+
+** Progress reporters can now "spin".
+The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
+now be nil, or omitted. This makes a "non-numeric" reporter. Each
+time you call `progress-reporter-update' on that progress reporter,
+with a nil or omitted VALUE argument, the reporter message is
+displayed with a "spinning bar".
+
+** New variable `revert-buffer-in-progress-p' is true while a buffer is
+being reverted, even if the buffer has a local `revert-buffer-function'.
+
+** New variables `delayed-warnings-list' and `delayed-warnings-hook' allow
+deferring warnings until the main command loop is executed.
+
++++
+** `set-auto-mode' now respects mode: local variables at the end of files,
+as well as those in the -*- line.
+
+\f
+* Changes in Emacs 24.1 on non-free operating systems
+
+** New configure.bat option --enable-checking builds Emacs with extra
+runtime checks.
+
+** New configure.bat option --distfiles to specify files to be
+included in binary distribution.
+
+** New configure.bat option --without-gnutls to disable automatic
+GnuTLS detection.
+
+** New configure.bat option --lib for general library linkage, works
+with the USER_LIBS build variable.
+
+** New make target `dist' to create binary distribution for MS Windows.
+
+\f
+----------------------------------------------------------------------
+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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
+
+\f
+Local variables:
+mode: outline
+paragraph-separate: "[ \f]*$"
+end:
HCoop / bpt / emacs.git / blobdiff