GNU Emacs NEWS -- history of user-visible changes.
-Copyright (C) 2010-2012 Free Software Foundation, Inc.
+Copyright (C) 2010-2013 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.
+
+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 24.4
+
+** Emacs can be compiled with POSIX ACL support.
+This happens by default if a suitable support library is found at
+build time, like libacl on GNU/Linux. To prevent this, use the
+configure option `--without-acl'.
+
+** The configure option --with-crt-dir has been removed.
+It is no longer needed, as the crt*.o files are no longer linked specially.
+
+\f
+* Startup Changes in Emacs 24.4
+
+\f
+* Changes in Emacs 24.4
+
++++
+** `apropos-variable' is now `apropos-user-option'
+`apropos-user-option' shows all user options while `apropos-variable'
+shows all variables. When called with a universal prefix argument,
+the two commands swap their behaviors. When `apropos-do-all' is
+non-nil, they output the same results.
+
++++
+** `eval-defun' on an already defined defcustom calls the :set function,
+if there is one.
+
+** If the new variable `enable-dir-local-variables' is nil,
+directory local variables are ignored. May be useful for some modes
+that want to ignore directory-locals while still respecting file-locals.
+
+** The option `set-mark-default-inactive' has been deleted.
+This unfinished feature was introduced by accident in Emacs 23.1;
+simply disabling Transient Mark mode does the same thing.
+
+** `initial-buffer-choice' can now specify a function to set up the
+initial buffer.
+
+** ACL support has been added.
++++
+*** Emacs preserves the ACL entries of files when backing up.
++++
+*** New functions `file-acl' and `set-file-acl' get and set the ACL
+entries of a file. On GNU/Linux, the POSIX ACL interface is used via
+libacl. On MS-Windows, the NT Security APIs are used to emulate the
+POSIX ACL interfaces.
+
+** New option `scroll-bar-adjust-thumb-portion'.
+Available only on X, this option allows to control over-scrolling
+using the scroll bar (i.e. dragging the thumb down even when the end
+of the buffer is visible).
+
+\f
+* Editing Changes in Emacs 24.4
+
+** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
+bound to <f11> and M-<f10>, respectively.
+
+** In keymaps where SPC scrolls, S-SPC now scrolls in the reverse direction.
+Eg View mode, etc.
+
+\f
+* Changes in Specialized Modes and Packages in Emacs 24.4
+
+** Delphi mode is now called OPascal mode.
+*** All delphi-* variables and functions have been renamed to opascal-*.
+*** `delphi-newline-always-indents' is not supported any more
+use `electric-indent-mode' instead.
+*** `delphi-tab' is gone, replaced by `indent-for-tab-command'.
+
+** jit-lock-debug-mode lets you use the debuggers on code run via jit-lock.
+
+** completing-read-multiple's separator can now be a regexp.
+The default separator is changed to allow surrounding spaces around the comma.
+
+** Battery
+
+*** Battery information via the BSD `apm' utility is now supported.
+
+** cl-lib
+
+*** New macro cl-tagbody.
+
++++
+*** letf is now just an alias for cl-letf.
+
+** Calc
+
+*** Calc by default now uses the Gregorian calendar for all dates, and
+uses January 1, 1 AD as its day number 1. Previously Calc used the
+Julian calendar for dates before September 14, 1752, and it used
+December 31, 1 BC as its day number 1; the new scheme is more
+consistent with Calendar's calendrical system and day numbering.
+
+*** The new variable `calc-gregorian-switch' lets you configure the
+date when Calc switches from the Julian to the Gregorian calendar.
+Nil, the default value, means to always use the Gregorian calendar.
+The value (YEAR MONTH DAY) means to start using the Gregorian calendar
+on the given date.
+
+*** Support for ISO 8601 dates.
+
+** Dired
+
+*** New minor mode `dired-hide-details-mode' hides details.
+
+** ERC
+
+*** New option `erc-accidental-paste-threshold-seconds'.
+If set to a number, this can be used to avoid accidentally paste large
+amounts of data into the ERC input.
+
+** Icomplete is a bit more like IDO.
+*** key bindings to navigate through and select the completions.
+*** The icomplete-separator is customizable, and its default has changed.
+*** Removed icomplete-show-key-bindings.
+
+** Image mode
+
+*** New commands `n' (`image-next-file') and `p' (`image-previous-file')
+visit the next image file and the previous image file in the same
+directory, respectively.
+
+*** New commands to show specific frames of multi-frame images.
+`f' (`image-next-frame') and `b' (`image-previous-frame') visit the
+next or previous frame. `F' (`image-goto-frame') shows a specific frame.
+
+---
+*** The command `image-mode-fit-frame' deletes other windows.
+When toggling, it restores the frame's previous window configuration.
+It also has an optional frame argument, which can be used by Lisp
+callers to fit the image to a frame other than the selected frame.
+
+** Isearch
+
+*** `C-x 8 RET' in Isearch mode reads a character by its Unicode name
+and adds it to the search string.
+
+** MH-E has been updated to MH-E version 8.4.
+See MH-E-NEWS for details.
+
+---
+** The unrmail command converts from BABYL to mboxrd rather than mboxo.
+Customize `unrmail-mbox-format' to change this.
+
+---
+** Similarly, customize `rmail-mbox-format' to influence some minor aspects
+of how Rmail displays non-MIME messages.
+
++++
+** New function `ses-rename-cell' to give SES cells arbitrary names.
+
+** trace-function was largely rewritten.
+New features include:
+- no prompting for the destination buffer, unless a prefix-arg was used.
+- additionally to prompting for a destination buffer, when a prefix-arg is
+ used, the user can enter a "context", i.e. Lisp expression whose value at the
+ time the function is entered/exited will be printed along with the function
+ name and arguments. Useful to trace the value of (current-buffer) or
+ (point) when the function is invoked.
+
+** New command `delete-duplicate-lines' has two types of operation:
+when its arg ADJACENT is non-nil (when called interactively with C-u C-u)
+it works like the utility `uniq'. Otherwise by default it deletes
+duplicate lines everywhere in the region without regard to adjacency.
+
+** New `cycle-spacing' command allows cycling between having just one
+space, no spaces, or reverting to the original spacing. Like
+`just-one-space' command it can handle or ignore newlines and
+leave different number of spaces.
+
+** Tramp
+
++++
+*** New connection method "adb", which allows to access Android
+devices by the Android Debug Bridge. The variable `tramp-adb-program'
+can be used to adapt the path of the "adb" program, if needed.
+
+*** The connection methods "plink1", "ssh1", "ssh2", "scp1", "scp2",
+"scpc" and "rsyncc" are discontinued. The ssh option
+"ControlMaster=auto" is set automatically in all ssh-based methods,
+when possible.
+
++++
+*** Handlers for `file-acl' and `set-file-acl' for remote machines
+which support POSIX ACLs.
+
+** Woman
+
+*** The commands `woman-default-faces' and `woman-monochrome-faces'
+are obsolete. Customize the `woman-* faces instead.
+
+** Obsolete packages:
+
+*** longlines.el is obsolete; use visual-line-mode instead.
+
+*** terminal.el is obsolete; use term.el instead.
+
++++
+*** yow.el is obsolete; use fortune.el or cookie1.el instead.
+
+---
+*** The Info-edit command is obsolete. Editing Info nodes by hand
+has not been relevant for some time.
+
+\f
+* New Modes and Packages in Emacs 24.4
+** New nadvice.el package offering lighter-weight advice facilities.
+It is layered as:
+- add-function/remove-function which can be used to add/remove code on any
+ function-carrying place, such as process-filters or `<foo>-function' hooks.
+- advice-add/advice-remove to add/remove a piece of advice on a named function,
+ much like `defadvice' does.
+
+\f
+* Incompatible Lisp Changes in Emacs 24.4
+
+** Removed inhibit-local-menu-bar-menus.
+
+** frame-local variables that affect redisplay do not work any more.
+More specifically, the redisplay does not bother to check for a frame-local
+value when looking up variables.
+
+** nil and "unbound" are indistinguishable in symbol-function.
+`symbol-function' never signals `void-function' any more.
+`fboundp' returns non-nil if the symbol was `fset' to nil.
+
+** `defadvice' does not honor the `freeze' flag and cannot advise
+special-forms any more.
+
+** `dolist' in lexical-binding mode does not bind VAR in RESULT any more.
+VAR was bound to nil which was not tremendously useful and just lead to
+spurious warnings about an unused var.
+
+** The return value of `backup-buffer' has changed.
+The second argument is no longer an SELinux context, instead it is an
+alist of extended attributes as returned by the new function
+`file-extended-attributes'. The attributes can be applied to another
+file using `set-file-extended-attributes'.
+
+\f
+* Lisp Changes in Emacs 24.4
+
+** Support for filesystem notifications.
+Emacs now supports notifications of filesystem changes, such as
+creation, modification, and deletion of files. This requires the
+'inotify' API on GNU/Linux systems. On MS-Windows systems, this is
+supported for Windows XP and newer versions.
+
+** Changes in autorevert.el
+
+---
+*** If Emacs is compiled with file notification support, notifications
+are used instead of checking the time stamp of the files. You can
+disable this by setting the user option `auto-revert-use-notify' to
+nil. Alternatively, a regular expression of directories to be
+excluded from file notifications can be specified by
+`auto-revert-notify-exclude-dir-regexp'.
+
+---
+*** The new user option `auto-revert-remote-files' enables reversion
+of remote files when set to non-nil.
+
+** Face changes
+
+*** The `face-spec-set' is now analogous to `setq' for face specs.
+Its third arg now accepts values specifying exactly which face spec to
+set (defface, custom, or user spec), and it directly sets the relevant
+property using the supplied face spec.
+
+*** Face specs set via Custom themes now replace the `defface' spec
+rather than inheriting from it (as do face specs set via Customize).
+
+*** New face characteristic (supports :underline (:style wave))
+specifies whether or not the terminal can display a wavy line.
+
+** Image API
+
++++
+*** `image-animated-p' is now `image-multi-frame-p'.
+It returns non-nil for any image that contains multiple frames,
+whether or not it specifies a frame delay.
+
++++
+*** When animating images that do not specify a frame delay,
+Emacs uses `image-default-frame-delay'.
+
++++
+*** New functions `image-current-frame' and `image-show-frame' for getting
+and setting the current frame of a multi-frame image.
+
+** time-to-seconds is not obsolete any more.
+** New function special-form-p.
+** Docstrings can be made dynamic by adding a `dynamic-docstring-function'
+text-property on the first char.
+
+** The `defalias-fset-function' property lets you catch calls to defalias
+and redirect them to your own function instead of `fset'.
+
+** The 9th element returned by `file-attributes' is now unspecified.
+Formerly, it was t if the file's gid would change if file were deleted
+and recreated. This value has been inaccurate for years on many
+platforms, and nobody seems to have noticed or cared.
+
+** The function `file-ownership-preserved-p' now has an optional
+argument GROUP which causes it check for file group too. This can be
+used in place of the 9th element of `file-attributes'.
+
+** New functions `group-gid' and `group-real-gid'.
+
+** The 6th argument to `copy-file' has been renamed to
+`preserve-extended-attributes' as it now handles both SELinux context
+and ACL entries.
+
+\f
+* Changes in Emacs 24.4 on Non-Free Operating Systems
+
++++
+** The "generate a backtrace on fatal error" feature now works on MS Windows.
+The backtrace is written to the 'emacs_backtrace.txt' file in the
+directory where Emacs was running.
+
++++
+** The variable `buffer-file-type' is no longer supported.
+Setting it has no effect, and %t in the mode-line format is ignored.
+Likewise, `file-name-buffer-file-type-alist' is now obsolete, and
+modifying it has no effect.
+
+---
+** Lock files now work on MS-Windows.
+This allows to avoid losing your edits if the same file is being
+edited in another Emacs session or by another user. See the node
+"Interlocking" in the Emacs User Manual for the details. To disable
+file locking, customize `create-lockfiles' to nil.
+
+** Improved fullscreen support on Mac OS X.
+Both native (>= OSX 10.7) and "old style" fullscreen are supported.
+Customize `ns-use-native-fullscreen' to change style. For >= 10.7
+native is the default.
+
\f
* Installation Changes in Emacs 24.3
-** The default toolkit has been changed to Gtk+ version 3.
-If you don't pass --with-x-toolkit to configure or if you pass
---with-x-toolkit=gtk or --with-x-toolkit=yes, configure will try to build
-with Gtk+ version 3, and if that fails, try Gtk+ version 2.
+** The default X toolkit is now Gtk+ version 3.
+If you don't pass `--with-x-toolkit' to configure, or if you use
+`--with-x-toolkit=gtk' or `--with-x-toolkit=yes', configure will try
+to build with Gtk+ version 3, and if that fails, try Gtk+ version 2.
You can explicitly require a specific version by passing
---with-x-toolkit=gtk2 or --with-x-toolkit=gtk3 to configure.
-
-** New configure option '--without-all' to disable additional features.
-This disables most of the features that are normally enabled by default.
+`--with-x-toolkit=gtk2' or `--with-x-toolkit=gtk3' to configure.
-** New configure option '--enable-link-time-optimization' to utilize
+** New configure option `--enable-link-time-optimization', to utilize
an appropriate feature provided by GCC since version 4.5.0.
-** New configure option '--enable-gcc-warnings', intended for developers.
-If building with GCC, this enables compile-time checks that warn about
-possibly-questionable C code. On a recent GNU system there should be
-no warnings; on older and on non-GNU systems the generated warnings
-may be useful.
+** New configure option `--without-all' to disable most of the optional
+features (image support, etc.) that are normally enabled by default.
-** The configure option '--enable-use-lisp-union-type' has been
-renamed to '--enable-check-lisp-object-type', as the resulting
+** New configure option `--enable-gcc-warnings' (for developing/debugging
+Emacs). If building with GCC, this enables compile-time checks that
+warn/give errors about possibly-questionable C code. On a recent GNU
+system there should be no warnings; on older and on non-GNU systems
+the results may be useful to developers.
+
+** The configure option `--enable-use-lisp-union-type' has been
+renamed to `--enable-check-lisp-object-type', as the resulting
Lisp_Object type no longer uses a union to implement the compile time
check that this option enables.
-** The configure option '--disable-maintainer-mode' has been removed,
+** The configure option `--disable-maintainer-mode' has been removed,
as it was confusingly-named and rarely useful.
-** You can use `NO_BIN_LINK=t make install' to prevent the installation
-overwriting "emacs" in the installation bin/ directory with a link
-to emacs-VERSION.
-
** The configure options `--program-prefix', `--program-suffix', and
`--program-transform-name' apply to more than just the installed
binaries. Now they also affect the man pages, icons, and the
etc/emacs.desktop file; but not the info pages, since this would break
links between the various manuals.
+** You can use `NO_BIN_LINK=t make install' to prevent the installation
+overwriting "emacs" in the installation bin/ directory with a link
+to "emacs-VERSION".
+
** Emacs uses libtinfo in preference to libncurses, if available.
** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and
/usr/pkg/lib to the linker search path. You must add them yourself if
you want them.
-** The standalone scripts rcs-checkin and vcdiff have been removed
+** The standalone scripts `rcs-checkin' and `vcdiff' have been removed
(from the bin and libexec directories, respectively). The former is
no longer relevant, the latter is replaced by lisp (in vc-sccs.el).
** Emacs no longer searches for `leim-list.el' files beneath the standard
lisp/ directory. There should not be any there anyway. If you have
-been adding them there, put them somewhere else, eg site-lisp.
+been adding them there, put them somewhere else; e.g., site-lisp.
** The `--no-site-lisp' command line option now works for Nextstep builds.
\f
* Changes in Emacs 24.3
-** Most y-or-n prompts now allow you to scroll the selected window.
-Typing C-v or M-v at a y-or-n prompt scrolls forward or backward
-respectively, without exiting from the prompt.
-
-** Mode line changes
-
-*** New option `mode-line-default-help-echo' specifies the help text
-(shown in a tooltip or in the echo area) for any part of the mode line
-that does not have its own specialized help text.
+** Help
-*** You can now click mouse-3 in the coding system indicator to invoke
-`set-buffer-file-coding-system'.
-
-** Help changes
-
-*** `C-h f' (describe-function) can now perform autoloading.
+*** `C-h f' (`describe-function') can now perform autoloading.
When this command is called for an autoloaded function whose docstring
contains a key substitution construct, that function's library is
automatically loaded, so that the documentation can be shown
even after their associated libraries have been loaded (and the
autoloads have been redefined as functions).
-** Minibuffer changes
+** ImageMagick
-*** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the
-next and previous path separator, respectively.
-
-*** minibuffer-electric-default-mode can rewrite (default ...) to [...].
-Just set minibuffer-eldef-shorten-default to t before enabling the mode.
+*** Images displayed via ImageMagick now support transparency and the
+:background image specification property.
-** ImageMagick support, if available, is automatically enabled.
+*** When available, ImageMagick support is automatically enabled.
It is no longer necessary to call `imagemagick-register-types'
explicitly to install ImageMagick image types; that function is called
automatically at startup, or when customizing an imagemagick- option.
*** Setting `imagemagick-types-inhibit' to t now disables the use of
-ImageMagick to view images. You must call imagemagick-register-types
-afterwards if you do not use customize to change this.
+ImageMagick to view images. (You must call `imagemagick-register-types'
+afterwards if you do not use customize to change this.)
*** The new variable `imagemagick-enabled-types' also affects which
ImageMagick types are treated as images. The function
`imagemagick-filter-types' returns the list of types that will be
treated as images.
-*** Images displayed via ImageMagick now support transparency and the
-:background image spec property.
+** Minibuffer
+
+*** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the
+next and previous path separator, respectively.
+
+*** `minibuffer-electric-default-mode' can shorten "(default ...)" to "[...]"
+in minibuffer prompts. Just set `minibuffer-eldef-shorten-default'
+non-nil before enabling the mode.
-** Server and client changes
+** Mode line
+
+*** New option `mode-line-default-help-echo' specifies the help text
+(shown in a tooltip or in the echo area) for any part of the mode line
+that does not have its own specialized help text.
+
+*** You can now click mouse-3 in the coding system indicator to invoke
+`set-buffer-file-coding-system'.
+
+** Server and client
*** emacsclient now obeys string values for `initial-buffer-choice',
if it is told to open a new frame without specifying any file to visit
*** New option `server-auth-key' specifies a shared server key.
-** In the Package Menu, newly-available packages are listed as "new",
-and sorted above the other "available" packages by default.
-
-** `C-x C-q' is now bound to the new minor mode `read-only-mode'.
-This minor mode replaces `toggle-read-only', which is now obsolete.
-
** Emacs now generates backtraces on fatal errors.
On encountering a fatal error, Emacs now outputs a textual description
of the fatal signal, and a short backtrace on platforms like glibc
that support backtraces.
+** `C-x C-q' is now bound to the new minor mode `read-only-mode'.
+This minor mode replaces `toggle-read-only', which is now obsolete.
+
+** Most `y-or-n' prompts now allow you to scroll the selected window.
+Typing `C-v' or `M-v' at a y-or-n prompt scrolls forward or backward
+respectively, without exiting from the prompt.
+
+** In the Package Menu, newly-available packages are listed as "new",
+and sorted above the other "available" packages by default.
+
** If your Emacs was built from a bzr checkout, the new variable
`emacs-bzr-version' contains information about the bzr revision used.
-** New variable `create-lockfiles' specifies usage of lockfiles.
+** New option `create-lockfiles' specifies usage of lockfiles.
It defaults to t. Changing it to nil inhibits the creation of lock
files (use this with caution).
-** Using "unibyte: t" in Lisp source files is obsolete.
-Use "coding: raw-text" instead.
-
-** Setting `enable-remote-dir-locals' to non-nil allows directory
-local variables on remote hosts.
+** New option `enable-remote-dir-locals', if non-nil, allows directory-local
+variables on remote hosts.
** The entry for PCL-CVS has been removed from the Tools menu.
The PCL-CVS commands are still available via the keyboard.
-** Internationalization changes
+** Using "unibyte: t" in Lisp source files is obsolete.
+Use "coding: raw-text" instead.
+
+** In the buffer made by `M-x report-emacs-bug', the `C-c m' binding
+has been changed to `C-c M-i' (`report-emacs-bug-insert-to-mailer').
+The previous binding, introduced in Emacs 24.1, was a mistake, because
+`C-c LETTER' bindings are reserved for user customizations.
+
+** Internationalization
*** New language environment: Persian.
*** New input method `vietnamese-vni'.
-** Nextstep (GNUstep / Mac OS X) port changes
+** Nextstep (GNUstep / Mac OS X) port
-*** Fullscreen and frame parameter fullscreen is supported.
+*** Support for fullscreen and the frame parameter fullscreen.
*** A file dialog is used for open/save operations initiated from the
menu/toolbar.
\f
* Editing Changes in Emacs 24.3
-** Navigation command changes
-
-*** New binding `M-g c' for `goto-char'.
-
-*** New binding `M-g TAB' for `move-to-column'.
-
-*** `M-g TAB' (`move-to-column') prompts for a column number if called
-interactively with no prefix arg. Previously, it moved to column 1.
-
-** Search and Replace changes
+** Search and Replace
*** Non-regexp Isearch now performs "lax" space matching.
Each sequence of spaces in the supplied search string may match any
sequence of one or more whitespace characters, as specified by the
variable `search-whitespace-regexp'. (This variable is also used by a
-similar existing feature for regexp Isearch).
+similar existing feature for regexp Isearch.)
*** New Isearch command `M-s SPC' toggles lax space matching.
This applies to both ordinary and regexp Isearch.
and `M-s _' in Isearch toggles symbol search mode.
`M-s c' in Isearch toggles search case-sensitivity.
-** `C-x 8 RET' is now bound to `insert-char', which is now a command.
-`ucs-insert' is now an obsolete alias for `insert-char'.
-
-** The `z' key no longer has a binding in most special modes.
-It used to be bound to `kill-this-buffer', but `z' is too easy to
-accidentally type.
-
-** New option `delete-trailing-lines' specifies whether
-M-x delete-trailing-whitespace should delete trailing lines at the end
-of the buffer. It defaults to t.
+** Navigation commands
-** Register changes
-
-*** `C-x r +' is now overloaded to invoke `append-to-register.
-
-*** New option `register-separator' specifies the register containing
-the text to put between collected texts for use with M-x
-append-to-register and M-x prepend-to-register.
+*** New binding `M-g c' for `goto-char'.
-** `C-u M-=' now counts lines/words/characters in the entire buffer.
+*** New binding `M-g TAB' for `move-to-column'.
-** New command `C-x r M-w' (copy-rectangle-as-kill).
-It copies the region-rectangle as the last rectangle kill.
+*** `M-g TAB' (`move-to-column') prompts for a column number if called
+interactively with no prefix arg. Previously, it moved to column 1.
** New option `yank-handled-properties' allows processing of text
-properties on yanked text, in more ways that are more general than
-just removing them, as done by `yank-excluded-properties'.
+properties on yanked text, in ways that are more general than just
+removing them (as is done by `yank-excluded-properties').
-\f
-* Changes in Specialized Modes and Packages in Emacs 24.3
-
-** Apropos
+** New option `delete-trailing-lines' specifies whether
+M-x delete-trailing-whitespace should delete trailing lines at the end
+of the buffer. It defaults to t.
-*** The faces used by Apropos are now directly customizable.
-These faces are named `apropos-symbol', `apropos-keybinding', and so on;
-see the `apropos' Custom group for details.
+** `C-u M-=' now counts lines/words/characters in the entire buffer.
-*** The old options whose values specified faces to use were removed
-(i.e. `apropos-symbol-face', `apropos-keybinding-face', etc.).
+** `C-x 8 RET' is now bound to `insert-char', which is now a command.
+`ucs-insert' is now an obsolete alias for `insert-char'.
-** Buffer Menu
-This package has been rewritten to use Tabulated List mode.
+** The `z' key no longer has a binding in most special modes.
+It used to be bound to `kill-this-buffer', but `z' is too easy to
+accidentally type.
-*** Option `Buffer-menu-buffer+size-width' is now obsolete.
-Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead.
+** New command `C-x r M-w' (`copy-rectangle-as-kill').
+It copies the region-rectangle as the last rectangle kill.
-** Calendar
+** Registers
-*** You can customize the header text that appears above each calendar month.
-See the variable `calendar-month-header'.
+*** `C-x r +' is now overloaded to invoke `append-to-register'.
-*** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'.
+*** New option `register-separator' specifies the register containing
+the text to put between collected texts for use with
+M-x append-to-register and M-x prepend-to-register.
-*** The calendars produced by cal-html include holidays.
-Customize `cal-html-holidays' to change this.
+\f
+* Changes in Specialized Modes and Packages in Emacs 24.3
-** CL
+** Common Lisp emulation (CL)
*** CL's main entry is now (require 'cl-lib).
-`cl-lib' is like the old `cl' except that it uses the namespace cleanly,
-i.e. all its definitions have the "cl-" prefix (and internal definitions use
-the "cl--" prefix).
+`cl-lib' is like the old `cl' except that it uses the namespace cleanly;
+i.e., all its definitions have the "cl-" prefix (and internal definitions
+use the "cl--" prefix).
-If `cl' provided a feature under the name `foo', then `cl-lib' provides it
-under the name `cl-foo' instead, with the exceptions of the few definitions
-that had to use `foo*' to avoid conflicts with pre-existing Elisp entities,
-which have not been renamed to `cl-foo*' but just `cl-foo'.
+If `cl' provided a feature under the name `foo', then `cl-lib'
+provides it under the name `cl-foo' instead; with the exceptions of the
+few `cl' definitions that had to use `foo*' to avoid conflicts with
+pre-existing Elisp entities. These have been renamed to `cl-foo'
+rather than `cl-foo*'.
The old `cl' is now deprecated and is mainly just a bunch of aliases that
-provide the old non-prefixed names. Some exceptions are listed below.
+provide the old, non-prefixed names. Some exceptions are listed below:
*** `cl-flet' is not like `flet' (which is deprecated).
Instead it obeys the behavior of Common-Lisp's `flet'.
whereas in flet the scoping is dynamic.
*** `cl-labels' is slightly different from `labels'.
-The difference is that it relies on the `lexical-binding' machinery (as opposed
-to the `lexical-let' machinery used previously) to capture definitions in
-closures, so such closures will only work if `lexical-binding' is in use.
+The difference is that it relies on the `lexical-binding' machinery
+(as opposed to the `lexical-let' machinery used previously) to capture
+definitions in closures, so such closures will only work if `lexical-binding'
+is in use.
*** `cl-letf' is not exactly like `letf'.
The only difference is in details that relate to some deprecated usage
of `symbol-function' in place forms.
*** `progv' was rewritten to use the `let' machinery.
-A side effect is that vars without corresponding value are bound to nil
-rather than making them unbound.
+A side effect is that variables without corresponding values are bound
+to nil rather than being made unbound.
*** The following methods of extending `setf' are obsolete
(use features from gv.el instead):
`define-setf-expander' (use `gv-define-setter' or `gv-define-expander')
`get-setf-method' no longer exists (see "Incompatible Lisp Changes")
-** New compilation option `compilation-always-kill'.
+** Diff mode
-** Customize
+*** Changes are now highlighted using the same color scheme as in
+modern VCSes. Deletions are displayed in red (new faces
+`diff-refine-removed' and `smerge-refined-removed', and new definition
+of `diff-removed'), insertions in green (new faces `diff-refine-added'
+and `smerge-refined-added', and new definition of `diff-added').
-*** `custom-reset-button-menu' now defaults to t.
+*** The variable `diff-use-changed-face' defines whether to use the
+face `diff-changed', or `diff-removed' and `diff-added' to highlight
+changes in context diffs.
-*** Non-option variables are never matched in `customize-apropos' and
-`customize-apropos-options' (i.e. the prefix argument does nothing for
-these commands now).
+*** The new command `diff-delete-trailing-whitespace' removes trailing
+whitespace introduced by a diff.
-** `desktop-path' no longer includes the "." directory.
-Desktop files are now located in ~/.emacs.d by default.
+** Ediff now uses the same color scheme as Diff mode.
+
+** Python mode
+
+A new version of python.el, which provides several new features, including:
+per-buffer shells, better indentation, Python 3 support, and improved
+shell-interaction compatible with iPython (and virtually any other
+text based shell).
+
+*** Some user options have been replaced/renamed, including (old -> new):
+**** python-indent -> python-indent-offset
+**** python-guess-indent -> python-indent-guess-indent-offset
+**** python-pdbtrack-do-tracking-p -> python-pdbtrack-activate
+**** python-use-skeletons -> python-skeleton-autoinsert
+
+*** Some user options have been removed, including:
+
+**** `python-indent-string-contents': Strings are never indented.
+
+**** `python-honour-comment-indentation':
+Comments are always considered as indentation markers.
+
+**** `python-continuation-offset': Indentation is automatically
+calculated in a pep8 compliant way depending on the context.
+
+**** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist':
+Have no direct mapping as the shell interaction is completely different.
+
+**** `python-python-command', `python-jython-command':
+Replaced by `python-shell-interpreter'.
+
+**** `inferior-python-filter-regexp', `python-remove-cwd-from-path',
+`python-pdbtrack-minor-mode-string', `python-source-modes':
+No longer relevant.
+
+*** Some commands have been replaced (old -> new):
+**** python-insert-class -> python-skeleton-class
+**** python-insert-def -> python-skeleton-def
+**** python-insert-for -> python-skeleton-for
+**** python-insert-if -> python-skeleton-if
+**** python-insert-try/except -> python-skeleton-try
+**** python-insert-try/finally -> python-skeleton-try
+**** python-insert-while -> python-skeleton-while
+**** python-find-function -> python-nav-jump-to-defun
+**** python-next-statement -> python-nav-forward-sentence
+**** python-previous-statement -> python-nav-backward-sentence
+**** python-beginning-of-defun-function -> python-nav-beginning-of-defun
+**** python-end-of-defun-function -> python-nav-end-of-defun
+**** python-send-buffer -> python-shell-send-buffer
+**** python-send-defun -> python-shell-send-defun
+**** python-send-region -> python-shell-send-region
+**** python-send-region-and-go -> emulate with python-shell-send-region
+and python-shell-switch-to-shell
+**** python-send-string -> python-shell-send-string
+**** python-switch-to-python -> python-shell-switch-to-shell
+**** python-describe-symbol -> python-eldoc-at-point
** D-Bus
*** Variables of type :(u)int32 and :(u)int64 accept floating points,
if their value does not fit into Emacs's integer range.
-*** The function `dbus-call-method' works non-blocking now, it can be
-interrupted by C-g. `dbus-call-method-non-blocking' is obsolete.
+*** The function `dbus-call-method' is now non-blocking.
+It can be interrupted by `C-g'. `dbus-call-method-non-blocking' is obsolete.
-*** Signals can be sent also as unicast message.
+*** Signals can also be sent as unicast messages.
*** The argument list of `dbus-register-signal' has been extended,
-according to the new match rule types of D-Bus. See the manual for
-details.
+according to the new match rule types of D-Bus.
*** `dbus-init-bus' supports private connections.
*** There is a new function `dbus-setenv'.
-** Diff mode
-
-*** Changes are now highlighted using the same color scheme as in
-modern VCSes. Deletions are displayed in red (new faces
-`diff-refine-removed' and `smerge-refined-removed', and new definition
-of `diff-removed'), insertions in green (new faces `diff-refine-added'
-and `smerge-refined-added', and new definition of `diff-added').
-
-*** The variable `diff-use-changed-face' defines whether to use the
-face `diff-changed', or `diff-removed' and `diff-added' to highlight
-changes in context diffs.
-
-*** The new command `diff-delete-trailing-whitespace' removes trailing
-whitespace introduced by a diff.
+** `desktop-path' no longer includes the "." directory.
+Desktop files are now located in ~/.emacs.d by default.
** Dired
if the command ends in `;' (when operating on multiple files).
Otherwise, it executes the command on each file in parallel.
-*** Typing M-n in the minibuffer of `dired-do-chmod', `dired-do-chgrp',
-`dired-do-chown', `dired-do-touch' pulls the file attributes of the
+*** Typing `M-n' in the minibuffer of `dired-do-chmod', `dired-do-chgrp',
+`dired-do-chown', and `dired-do-touch' yanks the attributes of the
file at point.
*** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'),
-`DEL' (`dired-unmark-backward'), `d' (`dired-flag-file-deletion')
+`DEL' (`dired-unmark-backward'), and `d' (`dired-flag-file-deletion')
mark/unmark/flag all files in the active region.
*** The minibuffer default for `=' (`dired-diff) has changed.
*** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers.
The global binding for `M-=', `count-words-region' is in effect.
-** Ediff now uses the same color scheme as Diff mode.
-
** ERC
*** New module "notifications", which can send a notification when you
*** New option `erc-lurker-hide-list', similar to `erc-hide-list', but
only applies to messages sent by lurkers.
-** Flymake uses fringe bitmaps to indicate errors and warnings.
-See `flymake-fringe-indicator-position', `flymake-error-bitmap' and
-`flymake-warning-bitmap'.
+** reStructuredText mode
-** Follow mode no longer works by using advice.
-The option `follow-intercept-processes' has been removed.
+*** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling,
+fontification, comment handling, and customization have all been revised
+and improved.
+
+*** Support for `imenu' and `which-function-mode'.
+
+*** The reStructuredText syntax is more closely covered.
+Sphinx support has been improved.
+
+*** `rst-insert-list' inserts new list or continues existing lists.
+
+*** A negative prefix argument always works for `rst-adjust'.
+
+*** The window configuration is reset after displaying a TOC.
+
+*** The constant `rst-version' describes the rst.el package version.
+
+** Ruby mode
+
+*** Support for percent literals and recognition of regular expressions
+in method calls without parentheses with more methods, including Cucumber
+steps definitions.
+
+*** Improved syntax highlighting and indentation.
+
+*** New command `ruby-toggle-block', bound to `C-c {'.
+
+*** Some non-standard keybindings/commands have been removed:
+
+**** `ruby-electric-brace'; use `electric-indent-mode' instead.
+
+**** `ruby-mark-defun'; use `mark-defun'.
+
+**** `ruby-beginning-of-defun' and `ruby-end-of-defun' are replaced by
+appropriate settings for the variables `beginning-of-defun-function'
+and `end-of-defun-function'.
+
+**** Non-standard keybindings for `backward-kill-word', `comment-region',
+`reindent-then-newline-and-indent' and `newline' have been removed.
+
+** Shell Script mode
+
+*** Pairing of parens/quotes uses `electric-pair-mode' instead of skeleton-pair.
+
+*** `sh-electric-here-document-mode' now controls auto-insertion of here-docs.
+
+*** `sh-use-smie' lets you choose a new indentation and navigation code.
+
+** VHDL mode
+
+*** The free software compiler GHDL is supported (and now the default).
+
+*** Support for the VHDL-AMS packages has been added/updated.
+
+*** Updated to the 2002 revision of the VHDL standard.
+
+*** Accepts \r and \f as whitespace.
+
+** Apropos
+
+*** The faces used by Apropos are now directly customizable.
+These faces are named `apropos-symbol', `apropos-keybinding', and so on;
+see the `apropos' Custom group for details.
+
+*** The old options whose values specified faces to use have been removed
+(i.e. `apropos-symbol-face', `apropos-keybinding-face', etc.).
+
+** Buffer Menu
+
+*** This package has been rewritten to use Tabulated List mode.
+
+*** Option `Buffer-menu-buffer+size-width' is now obsolete.
+Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead.
-** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings,
-specifying URL types that should be converted to remote file names at
-the FFAP prompt. The default is now '("ftp").
+** Calc
-** New Ibuffer `derived-mode' filter, bound to `/ M'.
-The old binding for `/ M' (filter by used-mode) is now bound to `/ m'.
+*** Algebraic simplification mode is now the default.
+To restrict to the limited simplifications given by the former
+default simplification mode, use `m I'.
-** `javascript-generic-mode' is now an obsolete alias for `js-mode'.
+** Calendar
-** New option `mouse-avoidance-banish-position' specifies where the
-`banish' mouse avoidance setting moves the mouse.
+*** You can customize the header text that appears above each calendar month.
+See the variable `calendar-month-header'.
-** notifications.el supports now version 1.2 of the Notifications API.
-The function `notifications-get-capabilities' returns the supported
-server properties.
+*** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'.
-** In Perl mode, new option `perl-indent-parens-as-block' causes non-block
-closing brackets to be aligned with the line of the opening bracket.
+*** The calendars produced by cal-html include holidays.
+Customize `cal-html-holidays' to change this.
-** In Proced mode, new command `proced-renice' renices marked processes.
+** CEDET
-** Python mode
+*** The major modes from the parser generators "Bovine" and "Wisent"
+are now properly integrated in Emacs. The file suffixes ".by" and ".wy"
+are in `auto-mode-alist', and the corresponding manuals are included.
-A new version of python.el, which provides several new features, including:
-per-buffer shells, better indentation, Python 3 support, and improved
-shell-interaction compatible with iPython (and virtually any other
-text based shell).
+*** EDE
-*** Some user options have been replaced/renamed:
-Old defcustom: | New defcustom:
-python-indent | python-indent-offset
-python-guess-indent | python-indent-guess-indent-offset
-python-pdbtrack-do-tracking-p | python-pdbtrack-activate
-python-use-skeletons | python-skeleton-autoinsert
+**** Menu support for the "Configuration" feature. This allows users to
+choose the active configuration (such as debug or install) from the menu.
-*** Some user options have been removed:
+**** New command `ede-set' to interactively set project-local variables.
-**** `python-indent-string-contents': Strings are never indented.
+**** Support for compiling, debugging, and running in "generic" projects.
-**** `python-honour-comment-indentation':
-Comments are never considered as indentation markers themselves.
+**** Autoconf editing support for M4 macros with complex arguments.
-**** `python-continuation-offset': Indentation is automatically
-calculated in a pep8 compliant way depending on the context.
+**** Compilation support for the "linux" project type.
-**** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist':
-Have no direct mapping as the shell interaction is completely different.
+**** "simple" projects have been removed; use "generic" projects instead.
-**** `python-python-command', `python-jython-command':
-Replaced by `python-shell-interpreter'.
+*** Semantic
-**** `inferior-python-filter-regexp', `python-remove-cwd-from-path',
-`python-pdbtrack-minor-mode-string', `python-source-modes':
-No longer relevant.
+**** Support for parsing #include statements inside a namespace in C/C++.
-*** Some commands have been replaced:
-Old command | New command
-python-insert-class | python-skeleton-class
-python-insert-def | python-skeleton-def
-python-insert-for | python-skeleton-for
-python-insert-if | python-skeleton-if
-python-insert-try/except | python-skeleton-try
-python-insert-try/finally | python-skeleton-try
-python-insert-while | python-skeleton-while
-python-find-function | python-nav-jump-to-defun
-python-next-statement | python-nav-forward-sentence
-python-previous-statement | python-nav-backward-sentence
-python-beginning-of-defun-function | python-nav-beginning-of-defun
-python-end-of-defun-function | python-nav-end-of-defun
-python-send-buffer | python-shell-send-buffer
-python-send-defun | python-shell-send-defun
-python-send-region | python-shell-send-region
-python-send-region-and-go | Emulate with python-shell-send-region and
- python-shell-switch-to-shell
-python-send-string | python-shell-send-string
-python-switch-to-python | python-shell-switch-to-shell
-python-describe-symbol | python-eldoc-at-point
+**** Improved support for 'extern "C"' declarations in C/C++.
-** reStructuredText mode
+**** The ability to ignore more common special C/C++ preprocessor symbols,
+such as '__nonnull' and '__asm'. Add '__cplusplus' macro when parsing C++.
+If available, include cdefs.h as an additional source of preprocessor symbols.
-*** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling,
-fontification, comment handling, and customization have all been revised
-and improved.
+**** Improved C/C++ function pointer parsing.
-*** Support for `imenu' and `which-function-mode'.
+**** In Python, support for converting imports to include file names.
-*** The reStructuredText syntax is more closely covered.
-Sphinx support has been improved.
+**** Ability to dynamically determine the Python load path.
-*** `rst-insert-list' inserts new list or continues existing lists.
+**** Support for the Python 'WITH' and 'AT' keywords.
-*** A negative prefix argument always works for `rst-adjust'.
+**** Improved tooltip completion.
-*** The window configuration is reset after displaying a TOC.
+*** SRecode
-*** The constant `rst-version' describes the rst.el package version.
+**** The SRecode manual is now included.
-** Shell Script mode
+**** Tag generation supports constructor/destructor settings and system
+include differentiation.
-*** Pairing of parens/quotes uses electric-pair-mode instead of skeleton-pair.
+**** Addition of 'Framework' support: Frameworks are specified when a
+particular kind of library (such as Android) is needed in a common language
+mode (like Java).
-*** `sh-electric-here-document-mode' now controls auto-insertion of here-docs.
+**** Support for nested templates and let variables override based on priority.
-*** `sh-use-smie' lets you choose a new indentation and navigation code.
+**** Support for merging tables from multiple related modes, such as
+default -> c++ -> arduino.
-** New option `async-shell-command-buffer' specifies the buffer to use
-for a new asynchronous `shell-command' when the default output buffer
-`*Async Shell Command*' is already in use.
+** Compile has a new option `compilation-always-kill'.
-** SQL mode has a new option `sql-db2-escape-newlines'.
-If non-nil, newlines sent to the command interpreter will be escaped
-by a backslash. The default does not escape the newlines and assumes
-that the sql statement will be terminated by a semicolon.
+** Customize
-** Tabulated List and packages derived from it
+*** `custom-reset-button-menu' now defaults to t.
-*** New command `tabulated-list-sort', bound to `S', sorts the column
-at point, or the Nth column if a numeric prefix argument is given.
+*** Non-option variables are never matched in `customize-apropos' and
+`customize-apropos-options' (i.e., the prefix argument does nothing for
+these commands now).
** Term
-*** The variables `term-default-fg-color' and `term-default-bg-color' are
-now deprecated in favor of the customizable face `term'.
+*** The variables `term-default-fg-color' and `term-default-bg-color'
+are now deprecated in favor of the customizable face `term'.
*** You can customize how to display ANSI terminal colors and styles
by customizing the corresponding `term-color-<COLOR>',
** Tramp
*** The syntax has been extended in order to allow ad-hoc proxy definitions.
-See the manual for details.
-*** Remote processes are now supported also on remote Windows host.
+*** Remote processes are now also supported on remote MS-Windows hosts.
** URL
*** Structs made by `url-generic-parse-url' have nil `attributes' slot.
Previously, this slot stored semicolon-separated attribute-value pairs
appended to some imap URLs, but this is not compatible with RFC 3986.
-So now the `filename' slot stores the entire path and query components
+So now the `filename' slot stores the entire path and query components,
and the `attributes' slot is always nil.
*** New function `url-encode-url' for encoding a URI string.
The `url-retrieve' function now uses this to encode its URL argument,
in case that is not properly encoded.
-** VHDL mode
+** notifications.el supports now version 1.2 of the Notifications API.
+The function `notifications-get-capabilities' returns the supported
+server properties.
-*** The free software compiler GHDL is supported (and now the default).
+** Flymake uses fringe bitmaps to indicate errors and warnings.
+See `flymake-fringe-indicator-position', `flymake-error-bitmap' and
+`flymake-warning-bitmap'.
-*** Support for the VHDL-AMS packages has been added/updated.
+** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings,
+specifying URL types that should be converted to remote file names at
+the FFAP prompt. The default is now '("ftp").
-*** Updated to the 2002 revision of the VHDL standard.
+** New Ibuffer `derived-mode' filter, bound to `/ M'.
+The old binding for `/ M' (filter by used-mode) is now bound to `/ m'.
-*** Accepts \r and \f as whitespace.
+** New option `mouse-avoidance-banish-position' specifies where the
+`banish' mouse avoidance setting moves the mouse.
+
+** In Perl mode, new option `perl-indent-parens-as-block' causes non-block
+closing brackets to be aligned with the line of the opening bracket.
+
+** In Proced mode, new command `proced-renice' renices marked processes.
+
+** New option `async-shell-command-buffer' specifies the buffer to use
+for a new asynchronous `shell-command' when the default output buffer
+`*Async Shell Command*' is already in use.
+
+** SQL mode has a new option `sql-db2-escape-newlines'.
+If non-nil, newlines sent to the command interpreter will be escaped
+by a backslash. The default does not escape the newlines and assumes
+that the sql statement will be terminated by a semicolon.
+
+** New command `tabulated-list-sort', bound to `S' in Tabulated List mode
+(and modes that derive from it), sorts the column at point, or the Nth
+column if a numeric prefix argument is given.
** `which-func-modes' now defaults to t, so Which Function mode, when
enabled, applies to all applicable major modes.
-** winner-mode-hook now runs when the mode is disabled, as well as when it is
-enabled.
+** `winner-mode-hook' now runs when the mode is disabled, as well as when
+it is enabled.
+
+** Follow mode no longer works by using advice.
+The option `follow-intercept-processes' has been removed.
+
+** `javascript-generic-mode' is now an obsolete alias for `js-mode'.
** Hooks renamed to avoid obsolete "-hooks" suffix:
*** semantic-lex-reset-hooks -> semantic-lex-reset-functions
*** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions
*** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions
-** Obsolete packages:
+** Obsolete packages
*** assoc.el
In most cases, assoc+member+push+delq work just as well.
And in any case it's just a terrible package: ugly semantics, terrible
inefficiency, and not namespace-clean.
-
*** bruce.el
-
*** cust-print.el
-
*** ledit.el
-
*** mailpost.el
-
*** mouse-sel.el
-
*** patcomp.el
\f
* Incompatible Lisp Changes in Emacs 24.3
-** set-buffer-multibyte now signals an error in narrowed buffers.
+** Docstrings starting with `*' no longer indicate user options.
+Only variables defined using `defcustom' are considered user options.
+The function `user-variable-p' is now an obsolete alias for
+`custom-variable-p'.
+
+** The return values of `defalias', `defun' and `defmacro' have changed,
+and are now undefined. For backwards compatibility, `defun' and
+`defmacro' currently return the name of the newly defined
+function/macro, but this should not be relied upon.
-** (random) by default now returns a different random sequence in
-every Emacs run. Use (random S), where S is a string, to set the
+** `random' by default now returns a different random sequence in
+every Emacs run. Use `(random S)', where S is a string, to set the
random seed to a value based on S, in order to get a repeatable
sequence in later calls.
-** The function `x-select-font' can return a font spec, instead of a
-font name as a string. Whether it returns a font spec or a font name
-depends on the graphical library.
-
** If the NEWTEXT arg to `replace-match' contains a substring "\?",
that substring is inserted literally even if the LITERAL arg is
non-nil, instead of causing an error to be signaled.
** `select-window' now always makes the window's buffer current.
It does so even if the window was selected before.
-** Docstrings starting with `*' no longer indicate user options.
-Only variables defined using `defcustom' are considered user options.
-The function `user-variable-p' is now an obsolete alias for
-`custom-variable-p'.
-
-** The return values of `defalias', `defun' and `defmacro' have changed,
-and are now undefined. For backwards compatibility, `defun' and
-`defmacro' currently return the name of the newly defined
-function/macro, but this should not be relied upon.
+** The function `x-select-font' can return a font spec, instead of a
+font name as a string. Whether it returns a font spec or a font name
+depends on the graphical library.
** `face-spec-set' no longer sets frame-specific attributes when the
third argument is a frame (that usage was obsolete since Emacs 22.2).
-** The arguments of `dbus-register-signal' are no longer just strings,
-but keywords or keyword-string pairs. The old argument list will
-still be supported for Emacs 24.x.
+** `set-buffer-multibyte' now signals an error in narrowed buffers.
** The CL package's `get-setf-method' function no longer exists.
Generalized variables are now part of core Emacs Lisp, and implemented
define a compatible replacement for `get-setf-method'. See the file
gv.el for internal details of the new implementation.
-** Spelling changes.
-Some Lisp symbols have been renamed to avoid problems with spelling
-that is incorrect or inconsistent with how Emacs normally spells a word.
+** The arguments of `dbus-register-signal' are no longer just strings,
+but keywords or keyword-string pairs. The old argument list will
+still be supported for Emacs 24.x.
+
+** Miscellaneous name changes
+Some Lisp symbols have been renamed to correct their spelling,
+or to be more consistent with standard Emacs terminology.
*** Renamed functions
-
**** hangul-input-method-inactivate -> hangul-input-method-deactivate
**** inactivate-input-method -> deactivate-input-method
**** quail-inactivate -> quail-deactivate
**** robin-inactivate-hook -> robin-deactivate-hook
**** quail-inactivate-hook -> quail-deactivate-hook
-*** Renamed Lisp variables
+*** Renamed variables
**** follow-deactive-menu -> follow-inactive-menu
**** inactivate-current-input-method-function ->
deactivate-current-input-method-function
*** `vc-checkout-carefully'
\f
-* Lisp changes in Emacs 24.3
-
-** New sampling-based Elisp profiler.
-Try M-x profiler-start, do some work, and then call M-x profiler-report.
-When finished, use M-x profiler-stop. The sampling rate can be based on
-CPU time or memory allocations.
+* Lisp Changes in Emacs 24.3
** CL-style generalized variables are now in core Elisp.
`setf' is autoloaded; `push' and `pop' accept generalized variables.
You can define your own generalized variables using `gv-define-simple-setter',
`gv-define-setter', etc.
+** Emacs tries to macroexpand interpreted (non-compiled) files during load.
+This can significantly speed up execution of non-byte-compiled code,
+but can also bump into previously unnoticed cyclic dependencies.
+These are generally harmless: they will simply cause the macro calls
+to be left for later expansion (as before), but will result in a
+warning ("Eager macro-expansion skipped due to cycle") describing the cycle.
+You may wish to restructure your code so this does not happen.
+
+** New sampling-based Elisp profiler.
+Try M-x profiler-start, do some work, and then call M-x profiler-report.
+When finished, use M-x profiler-stop. The sampling rate can be based on
+CPU time or memory allocations.
+
** `defun' also accepts a (declare DECLS) form, like `defmacro'.
The interpretation of the DECLS is determined by `defun-declarations-alist'.
-** Minibuffer
+** New macros `setq-local' and `defvar-local'.
-*** `read-regexp' has a new argument HISTORY; the first argument PROMPT
+** Face underlining can now use a wave.
+
+** `read-regexp' has a new argument HISTORY; the first argument PROMPT
of `read-regexp' accepts a string ending with a colon and space, and its
-second argument DEFAULTS can be a list of strings accessible via M-n
+second argument DEFAULTS can be a list of strings accessible via `M-n'
in the minibuffer ahead of other hard-coded useful regexp-related values.
More commands use `read-regexp' now to read their regexp arguments.
*** New function `completion-table-subvert' to use an existing completion
table, but with a different prefix.
-** Debugger changes
+** Debugger
*** New error type and new function `user-error'.
These do not trigger the debugger.
*** New var `inhibit-debugger', automatically set to prevent accidental
recursive invocations.
-** Window changes
+** Window handling
-*** The functions get-lru-window, get-mru-window and get-largest-window
-now accept a third argument to avoid choosing the selected window.
+*** New command `fit-frame-to-buffer' adjusts the frame height to
+fit the contents.
-*** Additional values recognized for option `window-combination-limit'.
+*** The command `fit-window-to-buffer' can adjust the frame height
+if the new option `fit-frame-to-buffer' is non-nil.
*** New macro `with-temp-buffer-window', similar to
`with-output-to-temp-buffer'.
*** `temp-buffer-resize-mode' no longer resizes windows that have been
reused.
-*** New command `fit-frame-to-buffer' adjusts the frame height to
-fit the contents.
-
-*** The command `fit-window-to-buffer' can adjust the frame height
-if the new option `fit-frame-to-buffer' is non-nil.
-
-*** New option switch-to-buffer-preserve-window-point to restore a
+*** New option `switch-to-buffer-preserve-window-point' to restore a
window's point when switching buffers.
-*** New display action functions `display-buffer-below-selected',
-and `display-buffer-in-previous-window'.
+*** New display action alist entries `window-height' and `window-width'
+specify the size of new windows created by `display-buffer'.
+
+*** New display action alist entry `pop-up-frame-parameters', if
+non-nil, specifies frame parameters to give any newly-created frame.
*** New display action alist entry `inhibit-switch-frame', if non-nil,
tells display action functions to avoid changing which frame is
selected.
-*** New display action alist entry `pop-up-frame-parameters', if
-non-nil, specifies frame parameters to give any newly-created frame.
-
*** New display action alist entry `previous-window', if non-nil,
specifies window to reuse in `display-buffer-in-previous-window'.
-*** New display action alist entries `window-height' and `window-width'
-to specify size of new window created by `display-buffer'.
+*** New display action functions `display-buffer-below-selected',
+and `display-buffer-in-previous-window'.
+
+*** The functions `get-lru-window', `get-mru-window' and `get-largest-window'
+now accept a third argument to avoid choosing the selected window.
+
+*** Additional values recognized for option `window-combination-limit'.
*** The following variables are obsolete, as they can be replaced by
appropriate entries in the `display-buffer-alist' function introduced
in Emacs 24.1:
-
+**** `dired-shrink-to-fit'
**** `display-buffer-reuse-frames'
-
-**** `special-display-regexps'
-
-**** `special-display-frame-alist'
-
+**** `display-buffer-function'
**** `special-display-buffer-names'
-
+**** `special-display-frame-alist'
**** `special-display-function'
-
-**** `display-buffer-function'
-
-**** `dired-shrink-to-fit'
+**** `special-display-regexps'
** Time
*** `current-time' now returns extended-format time stamps
(HIGH LOW USEC PSEC), where the new PSEC slot specifies picoseconds.
PSEC is typically a multiple of 1000 on current machines. Other
-functions that use this format, such as file-attributes and
-format-time-string, have been changed accordingly. Old-format time
+functions that use this format, such as `file-attributes' and
+`format-time-string', have been changed accordingly. Old-format time
stamps are still accepted.
-*** The format of timers in timer-list and timer-idle-list is now
+*** The format of timers in `timer-list' and `timer-idle-list' is now
[TRIGGERED-P HI-SECS LO-SECS USECS REPEAT-DELAY FUNCTION ARGS IDLE-DELAY PSECS].
The PSECS slot is new, and uses picosecond resolution. It can be
-accessed via the new timer--psecs accessor.
+accessed via the new `timer--psecs' accessor.
*** Last-modified time stamps in undo lists now are of the form
(t HI-SECS LO-SECS USECS PSECS) instead of (t HI-SECS . LO-SECS).
+** EIEIO
+
+*** Improved security when handling persistent objects:
+
+**** `eieio-persistent-read' now features optional arguments for specifying
+the class to load, as well as a flag stating whether subclasses are allowed;
+if provided, other classes will be rejected by the reader. For
+compatibility with existing code, if the class is omitted only a
+warning is issued.
+
+**** New specialized reader for pulling in classes and signaling errors
+without evaluation of suspicious code.
+
+**** All slots that contain objects must have a :type. Slots with lists
+of objects must use a new type predicate for a list of an object type.
+
+*** Support for `find-function' and similar utilities, through the addition
+of filename support to generated symbols.
+
** Floating point functions now always return special values like NaN,
-instead of signaling errors, if given invalid args, e.g. (log -1.0).
+instead of signaling errors, if given invalid args; e.g., (log -1.0).
Previously, they returned NaNs on some platforms but signaled errors
on others. The affected functions are acos, asin, tan, exp, expt,
log, log10, sqrt, and mod.
-** Emacs tries to macroexpand interpreted (non-compiled) files during load.
-This can significantly speed up execution of non-byte-compiled code,
-but can also bump into previously unnoticed cyclic dependencies.
-These are generally harmless: they will simply cause the macro calls
-to be left for later expansion (as before), but will result in a
-warning ("Eager macro-expansion skipped due to cycle") describing the cycle.
-You may wish to restructure your code so this does not happen.
+** New fringe bitmap `exclamation-mark'.
+
+** Miscellaneous changes to special forms and macros
+
+*** `defun' and `defmacro' are now macros rather than special forms.
+
+*** `kbd' is now a function rather than a macro.
+
+** Miscellaneous new functions
-** Miscellaneous new functions:
+*** `set-temporary-overlay-map' sets up a temporary keymap that
+takes precedence over most other maps for a short while (normally one key).
*** `autoloadp' tests if its argument is an autoloaded object.
*** `posnp' tests if an object is a `posn'.
-*** `set-temporary-overlay-map' sets up a temporary keymap that
-takes precedence over most other maps for a short while (normally one key).
-
*** `system-users' returns the user names on the system.
*** `system-groups' returns the group names on the system.
*** `tty-top-frame' returns the topmost frame of a text terminal.
-** New macros `setq-local' and `defvar-local'.
-
-** Changes to special forms and macros
-
-*** `defun' and `defmacro' are now macros rather than special forms
-
-*** `kbd' is now a function rather than a macro.
-
-** New fringe bitmap `exclamation-mark'.
-
-** Face underlining can now use a wave.
-
** The following functions and variables are obsolete:
-
*** `automount-dir-prefix' (use `directory-abbrev-alist')
-
*** `buffer-has-markers-at'
-
*** `macro-declaration-function' (use `macro-declarations-alist')
-
*** `window-system-version' (provides no useful information)
-
*** `dired-pop-to-buffer' (use `dired-mark-pop-up')
-
*** `query-replace-interactive'
-
*** `font-list-limit' (has had no effect since Emacs < 23)
\f
-* Changes in Emacs 24.3 on non-free operating systems
+* Changes in Emacs 24.3 on Non-Free Operating Systems
** Cygwin builds can use the native MS Windows user interface.
-Pass --with-w32 to configure. The default remains the X11 interface.
+Pass `--with-w32' to configure. The default remains the X11 interface.
** Two new functions are available in Cygwin builds:
`cygwin-convert-file-name-from-windows' and
** On MS Windows Vista and later Emacs now supports symbolic links.
-** On MS Windows, you can pass --without-libxml2 to configure.bat to omit
+** On MS Windows, you can pass `--without-libxml2' to configure.bat to omit
support for libxml2, even if its presence is detected.
** On Mac OS X, the Nextstep port requires OS X 10.4 or later.
-** On Mac OS X, configure no longer automatically adds the Fink /sw
+** On Mac OS X, configure no longer automatically adds the Fink "/sw"
directories to the search path. You must add them yourself if you want them.
\f
(`sendmail-send-it' on GNU/Linux and other Unix-like systems, and
`mailclient-send-it' on Windows).
-*** Typing C-c m in the buffer made by M-x report-emacs-bug transfers
-the report to your desktop's preferred mail client, if there is one.
-This uses either the "xdg-email" utility, or Mac OS's "open" command.
+*** Typing `C-c m' in the buffer made by `M-x report-emacs-bug'
+transfers the report to your desktop's preferred mail client, if there
+is one. This uses either the "xdg-email" utility, or Mac OS's "open"
+command.
*** See Changes in Specialized Modes and Packages for SMTPmail changes
and Mail mode changes
*** The default browser used by the package is now the "xdg-open" program,
on platforms that support it. This calls your desktop's preferred browser.
+** Calc
+
+*** Support for musical notes.
+
+*** Support for logarithmic units.
+
+*** No longer uses the tex prefix for TeX specific unit names when
+using TeX or LaTeX mode.
+
+*** New option to highlight selections using faces.
+
+*** `calc-histogram' has the option of using a vector to determine the bins.
+
+*** New "O" option prefix.
+
+*** Use the "O" prefix to "d r" (`calc-radix') to turn on twos-complement mode.
+
** Calendar, Diary, and Appt
*** Diary entries can contain non-printing "comments".
generates relative names according to the current `load-path'.
\f
-* Lisp changes in Emacs 24.1
+* Lisp Changes in Emacs 24.1
** Code can now use lexical scoping by default instead of dynamic scoping.
The `lexical-binding' variable enables lexical scoping for local
*** `font-lock-maximum-size' is obsolete.
\f
-* Changes in Emacs 24.1 on non-free operating systems
+* Changes in Emacs 24.1 on Non-Free Operating Systems
** On MS Windows, Emacs warns when using the obsolete init file _emacs,
and also when HOME is set to C:\ by default.