GNU Emacs NEWS -- history of user-visible changes.
-Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+Copyright (C) 2007-2011 Free Software Foundation, Inc.
See the end of the file for license conditions.
Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
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.
+
+* 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.
-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
+* 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.
\f
* Installation Changes in Emacs 23.2
-** New configure options for Emacs developers
+** 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.
-*** New commands for adding and removing file-local variables:
+*** 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'.
-*** New commands for adding and removing directory-local variables,
+*** 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-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.
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
(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.
-** LaTeX mode now provides completion (via completion-at-point).
-
----
-** sym-comp.el is now declared obsolete, superceded by completion-at-point.
-
-** lucid.el and levents.el are now declared obsolete.
-
-** pcomplete provides a new command `pcomplete-std-completion' which
-is similar to `pcomplete' but using the standard completion UI code.
-
** 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
`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.
*** 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.
+collections as watch expressions. These features require GDB 7.0 or later.
** Grep
-+++
+
*** A new command `zrgrep' searches recursively in gzipped files.
** 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
** nXML mode is now the default for editing XML files.
-** Shell
-+++
-*** ansi-color is now enabled by default.
+** 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".
use to create a repository, create a new repository and register the
file.
-*** FIXME: add info about the new VC functions: vc-root-diff and
-vc-root-print-log once they stabilize.
+*** 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.
-*** The log functions (C-x v l and C-x v L) do not show the full log
-by default anymore. The number of entries shown can be chosen
-interactively with a prefix argument, by customizing
-vc-log-show-limit. The log buffer display buttons that can be used
-to change the number of entries shown.
-RCS, SCCS, CVS do not support this feature.
+*** `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
*** 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.
+*** 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.
+**** 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.
-**** 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-dir uses the --relative option of git, and so requires at least
+git version 1.5.5.
-**** vc-dir displays the stash status
-
-**** vc-dir requires at least git-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.
-** 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.
-
** Miscellaneous
-+++
-*** The new command `async-shell-command' bound globally to `M-&' 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*'.
-*** Isearch searches in the comint/shell input history when the new variable
-`comint-history-isearch' is non-nil. New commands `comint-history-isearch-backward'
-and `comint-history-isearch-backward-regexp' (bound to M-r) start Isearch
-in the input history regardless of the value of `comint-history-isearch'.
-+++
*** 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
`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 built-in commands `su' and `sudo' support Tramp.
-That means, they change `default-directory' to the new users value,
-and let commands run under that user permissions. It works even when
+
+*** 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 by `*su' or `*sudo', repectively.
----
-*** 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).
+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
\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-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' that displays an image file as the actual image
-inititally, or `image-mode-as-text' when you want to display an image file
-as text inititally. `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 `C-c C-c' key binding to toggle image display.
+** 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'.
+`image-toggle-display' toggles between `image-mode-as-text' and `image-mode'.
\f
* Lisp changes in Emacs 23.2
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.
*** 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
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
*** 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.
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.
*** Emacs now supports multi-page TIFF images.
-** New NeXTSTEP-based port.
+** New NeXTstep-based port.
This provides support for GNUstep (via the GNUstep libraries) and Mac
OS X (via the Cocoa libraries).
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.
+Use the NeXTstep port, described above.
** The new configuration option "--with-dbus" enables D-Bus language
bindings for Emacs.
** Gnus
*** The Gnus package has been updated
-There are many news features, bug fixes and improvements; see the file
+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
+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'.
*** `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 of Isearch mode. All the rest Help commands exit Isearch mode
-and execute their global definitions.
+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.
*** 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 supercedes `icomplete-prospects-length'.
+*** `icomplete-prospects-height' now supersedes `icomplete-prospects-length'.
*** Info displays breadcrumbs in the header of the page.
See Info-breadcrumbs-depth to control it.
paragraph-separate: "[ \f]*$"
end:
-arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2
HCoop / bpt / emacs.git / blobdiff