GNU Emacs NEWS -- history of user-visible changes.
-Copyright (C) 2010-2011 Free Software Foundation, Inc.
+Copyright (C) 2010-2012 Free Software Foundation, Inc.
See the end of the file for license conditions.
Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
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.
+---
** There is a new configure option --with-wide-int.
With it, Emacs integers typically have 62 bits, even on 32-bit machines.
+On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB
+to about 2 GiB.
---
** 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.
+** Emacs can be compiled with ImageMagick support.
+Emacs links to ImageMagick if version 6.2.8 or newer of the library is
+present at build time. To inhibit ImageMagick, use the configure
+option `--without-imagemagick' .
+
+---
+** The standalone programs digest-doc and sorted-doc are removed.
+Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'.
+
+---
+** The standalone program `fakemail' is removed.
+If you need it, feedmail.el provides a superset of the functionality.
+
\f
* Startup Changes in Emacs 24.1
\f
* Changes in Emacs 24.1
-** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
-This is handy for minibuffer-only frames, and is also used for the "mouse-1
-pops up *Messages*" feature, which can now easily be changed.
-
-** 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.
-
-+++
-*** New emacsclient argument --frame-parameters can be used to set the
-frame parameters of a newly-created graphical frame.
-
+++
-*** If emacsclient shuts down as a result of Emacs signalling an
-error, its exit status is 1.
+** auto-mode-case-fold is now enabled by default.
** Completion
*** shell-mode uses pcomplete rules, with the standard completion UI.
-
-*** Many packages have been changed to use completion-at-point rather than
-their own completion code.
-
++++
+*** Many packages have been changed to use `completion-at-point'
+rather than their own completion code.
++++
+*** `completion-at-point' now handles tags and semantic completion.
+---
*** 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'.
-
-*** minibuffer-local-filename-must-match-map is not used any more.
-Instead, the bindings in minibuffer-local-filename-completion-map are combined
-with minibuffer-local-must-match-map.
-
-** auto-mode-case-fold is now enabled by default.
-
** Mail changes
-The default of `send-mail-function' has changed from
-`sendmail-send-it' (on GNU/Linux and other Unix-like systems) or
-`mailclient-send-it' (on Windows) to `sendmail-query-once'. This new
-default will ask the user (once) whether to use the internal smtpmail
-package to send email, or to use the old, external defaults.
-
-** smtpmail changes
-
-*** smtpmail has been largely rewritten to upgrade to STARTTLS if
-possible, and uses the auth-source framework for getting credentials.
-The rewrite should be largely compatible with previous versions of
-smtpmail, but there are two major incompatibilities:
-
-*** `smtpmail-auth-credentials' no longer exists. That variable used
-to be be either ~/.authinfo (in which case you won't see any
-difference), but if it were a direct list of user names and passwords,
-it will be ignored, and you will be prompted for the user name and the
-password instead. They will then be saved to ~/.authinfo.
++++
+*** The default of `send-mail-function' is now `sendmail-query-once',
+which asks the user (once) whether to use the smtpmail package to send
+email, or to use the old defaults that rely on external mail
+facilities (`sendmail-send-it' on GNU/Linux and other Unix-like
+systems, and `mailclient-send-it' on Windows).
+
+*** smtpmail changes
+
+**** smtpmail now uses encrypted connections (via STARTTLS) if the
+mail server supports them. It also uses the auth-source framework for
+getting credentials.
+
+**** The variable `smtpmail-auth-credentials' has been removed.
+That variable used to have the default value "~/.authinfo", in which
+case you won't see any difference. But if you changed it to be a list
+of user names and passwords, that setting is now ignored; you will be
+prompted for the user name and the password, which will then be saved
+to ~/.authinfo. (To control where and how the credentials are stored,
+see the auth-source manual. You may want to change the auth-source
+preferences if you want to store the credentials encrypted, for
+instance.)
+
+You can also manually copy the credentials to your ~/.authinfo file.
+For example, if you had
+
+ (setq smtpmail-auth-credentials
+ '(("mail.example.org" 25 "jim" "s!cret")))
-If you wish to copy over all the credentials from
-`smtpmail-auth-credentials' to your ~/.authinfo file manually, instead
-of letting smtpmail prompt you for these values, that's also possible.
+then the equivalent line in ~/.authinfo would be
-If you had, for instance,
+ machine mail.example.org port 25 login jim password s!cret
-(setq smtpmail-auth-credentials
- '(("mail.example.org" 25 "jim" "s!cret")))
+**** The variable `smtpmail-starttls-credentials' has been removed.
-then the equivalent line in ~/.authinfo would be
+If you had that set, then you need to put
-machine mail.example.org port 25 login jim password s!cret
+ machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert"
-*** Similarly, `smtpmail-starttls-credentials' no longer exists. If
-you had that set, then then you need to put
+in your ~/.authinfo file instead.
-machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert
-"~/.my_smtp_tls.cert"
+*** Mail mode changes (this is the old Mail mode, not Message mode)
++++
+**** New command `mail-add-attachment' for adding MIME attachments
+---
+**** The command `mail-attach-file' was renamed to `mail-insert-file'.
+The old name is now an obsolete alias to the new name.
-in your ~/.authinfo file instead.
+** Emacs server and client changes
++++
+*** New option `server-port' specifies the port on which the Emacs
+server should listen.
++++
+*** New emacsclient argument -q/--quiet suppresses some status messages.
++++
+*** New emacsclient argument --frame-parameters can be used to set the
+frame parameters of a newly-created graphical frame.
++++
+*** If emacsclient shuts down as a result of Emacs signaling an
+error, its exit status is 1.
++++
+*** New emacsclient argument --parent-id ID.
+This opens a client frame in parent X window ID, via XEmbed, similar
+to the --parent-id argument to Emacs.
** Internationalization changes
+++
*** Emacs now supports display and editing of bidirectional text.
-See the node "Bidirectional Editing" in the Emacs Manual for some
-additional documentation.
+Text that includes characters from right-to-left (RTL) scripts, such
+as Arabic, Farsi, or Hebrew, is displayed in the correct visual order
+as expected by users of those scripts. This display reordering is a
+"Full bidirectionality" class implementation of the Unicode
+Bidirectional Algorithm. Buffers with no RTL text should look exactly
+the same as before.
-To turn this off in any given buffer, set the buffer-local variable
-`bidi-display-reordering' to a nil value. The default is t. For text
-that includes no right-to-left characters, the result of reordering
-looks exactly as it did in previous versions, i.e. there's no
-reordering at all.
+For more information, see the node "Bidirectional Editing" in the
+Emacs Manual.
-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.
++++
+**** New buffer-local variable `bidi-display-reordering'.
+To disable display reordering in any given buffer, change this to nil.
-Reordering of bidirectional text for display in Emacs is a "Full
-bidirectionality" class implementation of the Unicode Bidirectional
++++
+**** New buffer-local variable `bidi-paragraph-direction'.
+If nil (the default), Emacs determines the base direction of each
+paragraph from its text, as specified by the Unicode Bidirectional
Algorithm.
+Setting this to `right-to-left' or `left-to-right' forces a particular
+base direction on each paragraph in the buffer.
+
+Paragraphs whose base direction is right-to-left are displayed
+starting at the right margin of the window.
+
+++
-*** 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
+*** Enhanced support for characters with no glyphs in available fonts.
+If a character has no glyphs in any of the available fonts, Emacs
+normally displays 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
+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.
+---
+*** New input methods for Farsi: farsi and farsi-translit.
-** GTK scroll-bars are now placed on the right by default.
-Use `set-scroll-bar-mode' to change this.
++++
+*** `nobreak-char-display' now also highlights Unicode hyphen chars
+(U+2010 and U+2011).
-** GTK tool bars can have just text, just images or images and text.
+** Improved GTK integration
++++
+*** 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.
+---
+*** 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.
++++
+*** 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.
-** 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.
-
++++
** New basic faces `error', `warning', `success' are available to
highlight strings that indicate failure, caution or successful operation.
-** 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.
*** 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.
+** Changes for exiting Emacs
+++
-** 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.
+*** 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'
+** Scrolling changes
++++
+*** 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'
+when `scroll-error-top-bottom' is non-nil.
++++
+*** New variable `scroll-error-top-bottom' (see above).
++++
+*** 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
++++
+*** 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,
+*** 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.
+*** ``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'.
** 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.
-
+from a package repository at http://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.
** The user option `remote-file-name-inhibit-cache' controls whether
the remote file-name cache is used for read access.
+** File- and directory-local variable changes
+++
-** 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 1)".
-
-** 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.
+*** You can stop directory local vars from applying to subdirectories.
+Add an element (subdirs . nil) to the alist portion of any variables
+settings to indicate that the section should not apply to
+subdirectories.
+
+*** Directory local variables can apply to some file-less buffers.
+Affected modes include dired, vc-dir, and log-edit. For example,
+adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will
+turn on `whitespace-mode' for *vc-diff* buffers. Modes should call
+`hack-dir-local-variables-non-file-buffer' to support this.
++++
+*** Using "mode: MINOR-MODE" to enable a minor mode is deprecated.
+Instead, use "eval: (minor-mode 1)".
+++
** The variable `focus-follows-mouse' now always defaults to nil.
by default.
** Menu-bar changes
-
+---
*** `menu-bar-select-buffer-function' lets you choose another operation
instead of `switch-to-buffer' when selecting an item in the Buffers menu.
+** Window changes
+
++++
+*** Resizing an Emacs frame now preserves proportional window sizes,
+modulo restrictions like window minimum sizes and fixed-size windows.
+
+*** The behavior of `display-buffer' is now customizable in detail.
++++
+**** New option `display-buffer-base-action' specifies a list of
+user-determined display "actions" (functions and optional arguments
+for choosing the displaying window).
+
+This takes precedence over the default display action, which is
+specified by `display-buffer-fallback-action'.
+
++++
+**** New option `display-buffer-alist' maps buffer name regexps to
+display actions, taking precedence over `display-buffer-base-action'.
+
++++
+*** New option `window-combination-limit'.
+The new option `window-combination-limit' allows to return the space
+obtained for resizing or creating a window more reliably to the window
+from which such space was obtained.
+
++++
+*** New option `window-combination-resize'.
+The new option `window-combination-resize' allows to split a window that
+otherwise cannot be split because it's too small by stealing space from
+other windows in the same combination. Subsequent resizing or deletion
+of the window will resize all windows in the same combination as well.
+
++++
+*** New commands `maximize-window' and `minimize-window'.
+These maximize and minimize the size of a window within its frame.
+
++++
+*** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'.
+These functions allow to navigate through the live buffers that have
+been shown in a specific window.
+
++++
+*** New functions `window-state-get' and `window-state-put'.
+These functions allow to save and restore the state of an arbitrary
+frame or window as an Elisp object.
+
+** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
+This is handy for minibuffer-only frames, and is also used for the "mouse-1
+pops up *Messages*" feature, which can now easily be changed.
+
\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.
+** New commands `count-words-region' and `count-words'.
-** completion-at-point now handles tags and semantic completion.
+*** `count-lines-region' is now an alias for `count-words-region',
+bound to M-=, which shows the number of lines, words, and characters.
++++
** The default value of `backup-by-copying-when-mismatch' is now t.
-** The command `just-one-space' (C-SPC), if given a negative argument,
++++
+** The command `just-one-space' (M-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.
-
+If non-nil, [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 [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.
+++
*** Support for X cut buffers has been removed.
-*** Support for X clipboard managers has been added.
-
-**** To inhibit use of the clipboard manager, set
-`x-select-enable-clipboard-manager' to nil.
+*** X clipboard managers are now supported.
+To inhibit this, change `x-select-enable-clipboard-manager' to nil.
++++
** New command `rectangle-number-lines', bound to `C-x r N', numbers
-the lines in the current rectangle. With an prefix argument, this
+the lines in the current rectangle. With a 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.
++++
+** The default value of redisplay-dont-pause is now t
+This makes Emacs feel more responsive to editing commands that arrive
+at high rate, e.g. if you lean on some key, because stopping redisplay
+in the middle (when this variable is nil) forces more expensive
+updates later on, and Emacs appears to be unable to keep up.
+
++++
+** The behavior of <TAB> for active regions in Text mode has changed.
+In Text and related modes, typing <TAB> (`indent-for-tab-command')
+when the region is active causes Emacs to indent all the lines in the
+region, aligning them with the line previous to the first line in the
+region (or with the left margin if there is no previous line).
\f
* Changes in Specialized Modes and Packages in Emacs 24.1
-** MH-E
-
-*** Upgraded to MH-E version 8.2.93. See MH-E-NEWS for details.
-
-** 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.
++++
+** Archive Mode has basic support for browsing and updating 7z archives.
-** Modula-2 mode provides auto-indentation.
++++
+** browse-url has a new variable `browse-url-mailto-function'
+specifies how mailto: URLs are handled. The default is `browse-url-mail'.
+---
** BibTeX mode
*** BibTeX mode now supports biblatex.
-Use the variable bibtex-dialect to select support for different BibTeX dialects.
-bibtex-entry-field-alist is now an obsolete alias for
+Use the variable bibtex-dialect to select support for different BibTeX
+dialects. bibtex-entry-field-alist is now an obsolete alias for
bibtex-BibTeX-entry-alist.
*** New command `bibtex-search-entries' bound to C-c C-a.
*** New variable `bibtex-search-entry-globally'.
-** 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 and update 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
+++
*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
view-diary-entries, list-diary-entries, show-all-diary-entries
+** CC Mode (C, C++, etc.)
+
+*** New feature to "guess" the style in an existing buffer.
+
+** 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.
+
+*** `compilation-error-screen-columns' is obeyed in the editing buffer.
+So programming language modes can set it, whereas previously only the value
+in the *compilation* buffer was used.
+
** Customize
*** Customize buffers now contain a search field.
*** The color widget now has a "Choose" button, which allows you to
choose a color via list-colors-display.
-** Dired-x
+** 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.
+
+** 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.
+** ERC changes
-*** `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.
+*** 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.
-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.
+** Eshell changes
-*** An API for manipulating SQL product definitions has been added.
+*** 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.
+
+** gdb-mi
++++
+*** GDB User Interface migrated to GDB Machine Interface and now
+supports multithread non-stop debugging and debugging of several
+threads simultaneously.
+
+** In ido-mode, C-v is no longer bound to ido-toggle-vc.
+The reason is that this interferes with cua-mode.
** Image mode
*** Option `image-animate-loop', if non-nil, loops the animation.
If nil, `image-toggle-animation' plays the animation once.
-** sregex.el is now obsolete, since rx.el is a strict superset.
+** Info
-** 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
+*** New command `info-display-manual' displays 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.
-*** GDB User Interface migrated to GDB Machine Interface and now
-supports multithread non-stop debugging and debugging of several
-threads simultaneously.
++++
+** The Landmark game is now invoked with `landmark', not `lm'.
-** D-Bus
+** MH-E has been upgraded to MH-E version 8.3.1.
+See MH-E-NEWS for details.
-*** It is possible now, to access alternative buses than the default
-system or session bus.
+** Modula-2 mode provides auto-indentation.
-*** dbus-register-{service,method,property}
-The -method and -property functions do not automatically register
-names anymore.
+** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
-The new function dbus-register-service registers a service known name
-on a D-Bus without simultaneously registering a property or a method.
+** 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.
-** Tramp
+** Rmail
-*** There exists a new inline access method "ksu" (kerberized su).
+*** The command `rmail-epa-decrypt' decrypts OpenPGP data
+in the Rmail incoming message.
+
+---
+*** The variable `rmail-message-filter' no longer has any effect.
+This change was made in Emacs 23.1 but was not advertised at the time.
+Try using `rmail-show-message-hook' instead.
+
+** Shell mode
++++
+*** Shell mode uses pcomplete rules, with the standard completion UI.
++++
+*** The `shell' command prompts for the shell path name if the default
+directory is a remote file name and neither the environment variable
+$ESHELL nor the variable `explicit-shell-file-name' is set.
+
+---
+** SQL Mode enhancements.
+
+*** `sql-dialect' is an alias for `sql-product'.
+
+*** New variable `sql-port' specifies the port number for connecting
+to a MySQL or Postgres server.
+
+*** The command `sql-product-interactive' now takes a prefix argument,
+which causes it to prompt for an SQL product instead of the current
+value of `sql-product'.
+
+*** Product-specific SQL interactive commands now take prefix args.
+These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.),
+given a prefix argument, prompt for a name for the SQL interactive
+buffer. This reduces the need for calling `sql-rename-buffer'.
+
+*** SQL interactive modes suppress command continuation prompts, and
+replace tabs with spaces. The first 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. The
+second change prevents the MySQL and Postgres interpreters from
+listing object name completions when sent text via `sql-send-*'
+functions.
+
+*** New 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.
+
+*** New variable `sql-connection-alist' for login parameter values.
+This can be used to store different username, database and server
+values. Connections defined in this variable appear in the submenu
+SQL->Start... for making new SQLi sessions.
+
+*** New command `sql-connect' starts a predefined SQLi session,
+using the login parameters from `sql-connection-alist'.
+
+*** New "Save Connection" menu item in SQLi buffers.
+This gathers the login params specified for the SQLi session, if it
+was not started by a connection, and saves them as a new connection.
+
+*** Commands for listing database objects and details.
+In an SQLi session, you can get a list of objects in the database.
+The contents of these lists are product specific.
+
+**** `C-c C-l a' or the "SQL->List all objects" menu item
+lists all the objects in the database. With a prefix argument, it
+displays additional details or extend the listing to include other
+schemas objects.
+
+**** `C-c C-l t' or the "SQL->List Table details" menu item
+prompts for the name of a database table or view and displays the list
+of columns in the relation. With a prefix argument, it displays
+additional details about each column.
+
+*** New options `sql-send-terminator' and `sql-oracle-scan-on'.
+*** An API for manipulating SQL product definitions has been added.
+
+** TeX modes
+
+*** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
+
+** 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 "".
-** Rmail
-
-*** The command `rmail-epa-decrypt' decrypts OpenPGP data
-in the Rmail incoming message.
+** `url-queue-retrieve' downloads web pages asynchronously, but allow
+controlling the degree of parallelism.
** 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.
+`C-x v +' (`vc-pull') runs a "pull" operation, if it is supported, to
+update the current branch and working tree. 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.
+The vc-merge command now runs a "merge" operation, if it is supported,
+to merge changes from another branch into the current one. It prompts
+for specifics, e.g. a merge source.
**** Currently supported for Bzr, Git, and Mercurial.
++++
*** New option `vc-revert-show-diff' controls whether `vc-revert'
shows a diff while querying the user. It defaults to t.
++++
*** 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
**** 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.
-** CC Mode (C, C++, etc.)
++++
+*** The option `vc-initial-comment' was removed in Emacs 23.2, but
+this was not advertised at the time.
-*** New feature to "guess" the style in an existing buffer.
++++
+*** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'.
+Since Emacs 23, it has done the same thing as `toggle-read-only', but
+this was not advertised at the time.
+
+** FIXME: xdg-open for browse-url and reportbug, 2010/08.
+
+** Obsolete modes
+
+*** partial-completion-mode is obsolete.
+You can get a comparable behavior with:
+(setq completion-styles '(partial-completion initials))
+(setq completion-pcm-complete-word-inserts-delimiters t)
+
+*** pc-mode.el is obsolete.
+
+*** sregex.el is obsolete, since rx.el is a strict superset.
+
+*** s-region.el and pc-select are obsolete.
+They are superseded by shift-select-mode enabled by default in 23.1.
** 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.
+original buffers. It is bound to "e" in Occur mode.
** New global minor modes electric-pair-mode, electric-indent-mode,
and electric-layout-mode.
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
area, excluding any header line. Previously, it counted from the top
of the header line.
-** Remove obsolete name `e' (use `float-e' instead).
+** Removed obsolete name `e' (use `float-e' instead).
** A backquote not followed by a space is now always treated as new-style.
** 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
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
** cl.el no longer provides `cl-19'.
-** The following functions and aliases, obsolete since at least Emacs 21.1,
-have been removed:
+** The menu bar bindings's caches are not used any more.
+Use (where-is-internal <def> nil t) instead.
+
+** The following obsolete functions and aliases were 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,
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 obsolete variables and varaliases were removed:
+checkdoc-minor-keymap, vc-header-alist, directory-sep-char, and
+font-lock-defaults-alist.
-** The following files, obsolete since at least Emacs 21.1, have been removed:
+** The following obsolete files were removed:
sc.el, x-menu.el, rnews.el, rnewspost.el
** FIXME finder-inf.el changes.
\f
* Lisp changes in Emacs 24.1
-** Window changes
+** 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.
+
+** 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.
+
+** Changes for bidirectional display and editing
+
++++
+*** New function `current-bidi-paragraph-direction'.
+This returns the actual value of base direction of the paragraph at
+point.
+
++++
+*** New function `bidi-string-mark-left-to-right'.
+Given a string containing characters from right-to-left (RTL) scripts,
+this function returns another string which can be safely inserted into
+a buffer, such that any following text will be always displayed to the
+right of that string. (This works by appending the Unicode
+"LEFT-TO-RIGHT MARK" character when the argument string might need that.)
+
+This is useful when the buffer has overall left-to-right (LTR)
+paragraph direction and you need to insert a string whose contents and
+directionality are not known in advance, without disrupting the layout
+of the line.
+
+** Window changes
++++
+*** Window tree functions are accessible in Elisp.
+Functions are provided to return the parent, siblings or child windows
+of any window including internal windows (windows not associated with a
+buffer) in the window tree.
++++
+**** New function `window-valid-p' gives non-nil for live and internal
+windows.
++++
+**** Window manipulation can deal with internal windows.
+Many window handling functions like `split-window', `delete-window', or
+`delete-other-windows' as well as the window resizing functions can now
+act on any window including internal ones.
++++
+*** window-total-height/-width vs window-body-height/-width.
+The function `window-height' has been renamed to `window-total-height'
+and `window-width' has been renamed to `window-body-width'. The old
+names are provided as aliases. Two new functions `window-total-width'
+and `window-body-height' are provided.
++++
+*** Window parameters specific to window handling functions.
+For each window you can specify a parameter to override the default
+behavior of a number of functions like `split-window', `delete-window'
+and `delete-other-windows'. The variable `ignore-window-parameters'
+allows to ignore processing such parameters.
++++
+*** New semantics of third argument of `split-window'.
+The third argument of `split-window' has been renamed to SIDE and can be
+set to any of the values 'below, 'right, 'above, or 'left to make the
+new window appear on the corresponding side of the window that shall be
+split. Any other value of SIDE will cause `split-window' to split the
+window into two side-by-side windows as before.
++++
+*** Window resizing functions.
+A new standard function for resizing windows called `window-resize' has
+been introduced. This and all other functions for resizing windows no
+longer delete any windows when they become too small.
++++
+*** Deleting the selected window now selects the most recently selected
+live window on that frame instead.
++++
+*** `adjust-window-trailing-edge' adjustments.
+`adjust-window-trailing-edge' can now deal with fixed-size windows and
+is able to resize other windows if a window adjacent to the trailing
+edge cannot be shrunk any more. This makes its behavior more similar to
+that of Emacs 21 without compromising, however, its inability to delete
+windows which was introduced in Emacs 22.
++++
+*** Window-local buffer lists.
+Windows now have local buffer lists. This means that removing a buffer
+from display in a window will preferably show the buffer previously
+shown in that window with its previous window-start and window-point
+positions. This also means that the same buffer may be automatically
+shown twice even if it already appears in another window.
++++
*** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW,
which if non-nil requires the buffer to be displayed in the currently
selected window, signaling an error otherwise. If nil, another window
can be used, e.g. if the selected one is strongly dedicated.
++++
+*** `split-window-vertically' and `split-window-horizontally' renamed
+to `split-window-below' and `split-window-right' respectively.
+The old names are kept as aliases.
++++
+*** Display actions
+
+**** The second arg to `display-buffer' and `pop-to-buffer' is now
+named ACTION, and takes a display action of the same form as
+`display-buffer-base-action' (see Changes, above). A non-nil,
+non-list value is treated specially, as the old meaning.
-*** FIXME: buffer-display-alist changes
+**** New variable `display-buffer-overriding-action'.
+
+**** The procedure of `display-buffer' etc. to choose a window is
+determined by combining `display-buffer-overriding-action',
+`display-buffer-alist', the ACTION arg, `display-buffer-base-action',
+and `display-buffer-fallback-action'. The second and fourth of these
+are user-customizable variables.
+
+See the docstring of `display-buffer' for details.
+
++++
+*** New behavior of `quit-window'.
+The behavior of `quit-window' has been changed in order to restore the
+state before the last buffer display operation in that window.
+
++++
+*** The new option `frame-auto-hide-function' lets you choose between
+iconifying or deleting a frame when burying a buffer shown in a dedicated
+frame or quitting a window showing a buffer in a frame of its own.
** Completion
+
*** New variable completion-extra-properties used to specify extra properties
of the current completion:
- :annotate-function, same as the old completion-annotate-function.
- `display-sort-function' to specify how to sort entries in *Completions*.
- `cycle-sort-function' to specify how to sort entries when cycling.
+*** minibuffer-local-filename-must-match-map is not used any more.
+Instead, the bindings in minibuffer-local-filename-completion-map are
+combined with minibuffer-local-must-match-map.
+
+*** New variable `completing-read-function' allows overriding the
+behavior of `completing-read'.
+
++++
** `glyphless-char-display' can now distinguish between graphical and
text terminal display, via a char-table entry that is a cons cell.
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.
-
+++
-** New function `bidi-string-mark-left-to-right'.
-Given a string containing right-to-left (RTL) script, this function
-returns another string which can be safely inserted into a buffer as a
-distinct RTL "segment", without causing any following text to be
-displayed as RTL. (This is done by appending a Unicode "left-to-right
-mark" character.)
-
-This is useful when the buffer has overall left-to-right (LTR)
-paragraph direction and you need to insert a string whose contents and
-directionality are not known in advance.
-
** pre/post-command-hook are not reset to nil upon error.
Instead, the offending function is removed.
-** New low-level function run-hook-wrapped.
+** New hook types
+
+*** New function `run-hook-wrapped' for running an abnormal hook by
+passing the hook functions as arguments to a "wrapping" function.
++++
+*** New macro `with-wrapper-hook' for running an abnormal hook as a
+set of "wrapping" filters, similar to around advice.
** `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.
+---
+** Variable `stack-trace-on-error' removed.
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.
++++
+** The function format-time-string now supports the %N directive, for
+higher-resolution time stamps.
+
** New function `read-char-choice' reads a restricted set of characters,
discarding any inputs not inside the set.
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.
+** New variable `syntax-propertize-function'.
+This replaces `font-lock-syntactic-keywords' which is 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 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.
-The prog-mode-hook it defines can be used to enable features for
-programming modes. For example:
-(add-hook 'prog-mode-hook 'flyspell-prog-mode)
-enables on the fly spell checking for comments and strings for
-programming modes.
-** define-minor-mode accepts a new keyword :variable.
+** Major and minor mode changes
++++
+*** `prog-mode' is a new major mode from which programming modes
+should be derived.
+
+**** `prog-mode-hook' can be used to enable features for programming
+modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable
+on-the-fly spell checking for comments and strings.
+
+*** New hook `change-major-mode-after-body-hook', run by
+`run-mode-hooks' just before any other mode hooks.
+
+*** Enabled globalized minor modes can be disabled in specific modes,
+by running (FOO-mode-hook 0) via a mode hook.
+
+*** `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
+triplet, instead of signaling an error if the user provides a invalid
input.
** Tool-bars can display separators.
*** `image-extension-data' is renamed to `image-metadata'.
+*** If Emacs is compiled with ImageMagick support (see Startup
+Changes), the 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.
+
** XML and HTML parsing
*** If Emacs is compiled with libxml2 support (which is the default),
STARTTLS opportunistically or use plain SSL, depending on your needs.
Only versions 2.8.x and higher or GnuTLS have been tested.
+[FIXME: this statement needs clarifying, given that GnuTLS >= 2.6.6
+is the test used by configure.]
*** gnutls-log-level
Set `gnutls-log-level' higher than 0 to get debug output. 1 is for
*** 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
** keymaps can inherit from multiple parents.
+** `debug-on-event' lets you debug Emacs when stuck because of inhibit-quit.
+
++++
** New reader macro ## which stands for the empty symbol.
This means that the empty symbol can now be read back. Also, #: by itself
(when not immediately followed by a possible symbol character) stands for
an empty uninterned symbol.
+
+** Obsolete functions and variables
+
+*** buffer-substring-filters is obsolete.
+Use `filter-buffer-substring-functions' instead.
+
+*** `byte-compile-disable-print-circle' is obsolete.
+
+*** `deferred-action-list' and `deferred-action-function' are obsolete.
++++
+*** `font-lock-maximum-size' is obsolete.
+
\f
* Changes in Emacs 24.1 on non-free operating systems
** New make target `dist' to create binary distribution for MS Windows.
+** Function `w32-default-color-map' is now obsolete.
+
+** On Nextstep/OSX, the menu bar can be hidden by customizing
+ns-auto-hide-menu-bar.
+
\f
----------------------------------------------------------------------
This file is part of GNU Emacs.
HCoop / bpt / emacs.git / blobdiff