\f
* Installation Changes in Emacs 24.1
+---
+** There are new configure options:
+--with-mmdf, --with-mail-unlink, --with-mailhost.
+These provide no new functionality, they just remove the need to edit
+lib-src/Makefile by hand in order to use the associated features.
+
+---
+** There is a new configure option --with-crt-dir.
+This is only useful if your crt*.o files are in a non-standard location.
+
+** Configure links against libselinux if it is found.
+You can disable this by using --without-selinux.
+
\f
* Startup Changes in Emacs 24.1
\f
* Changes in Emacs 24.1
+** auto-mode-case-fold is now enabled by default.
+
++++
+** Emacs now supports display and editing of bidirectional text.
+Warning: This is still very much experimental! The existing support
+is minimal, and when it's turned on (see below), many features are
+likely to give unexpected results, or break, or even crash! Use at
+your own risk!
+
+See the node "Bidirectional Editing" in the Emacs Manual for some
+initial documentation.
+
+To turn this on in any given buffer, set the buffer-local variable
+`bidi-display-reordering' to a non-nil value. The default is nil.
+
+The buffer-local variable `bidi-paragraph-direction', if non-nil,
+forces each paragraph in the buffer to have its base direction
+according to the value of this variable. Possible values are
+`right-to-left' and `left-to-right'. If the value is nil (the
+default), Emacs determines the base direction of each paragraph from
+its text, as specified by the Unicode Bidirectional Algorithm.
+
+Reordering of bidirectional text for display in Emacs is a "Full
+bidirectionality" class implementation of the Unicode Bidirectional
+Algorithm.
+
** 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.
+
+** Lucid menus and dialogs can display antialiased fonts if Emacs is built
+with Xft.
+
+** Basic SELinux support has been added.
+This requires Emacs to be linked with libselinux at build time.
+
+*** Emacs preserves the SELinux file context when backing up, and
+optionally when copying files. To this end, copy-file has an extra
+optional argument, and backup-buffer and friends include the SELinux
+context in their return values.
+
+*** The new functions file-selinux-context and set-file-selinux-context
+get and set the SELinux context of a file.
+
+*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
+for remote machines which support SELinux.
+
+** New scrolling commands `scroll-up-command' and `scroll-down-command'
+(bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
+of buffer at first key-press (instead moves to top/bottom of buffer)
+when a new variable `scroll-error-top-bottom' is non-nil.
+
+** New scrolling commands `scroll-up-line' and `scroll-down-line'
+scroll a line instead of full screen.
+
+** New property `scroll-command' should be set on a command's symbol to
+define it as a scroll command affected by `scroll-preserve-screen-position.
+
\f
* Editing Changes in Emacs 24.1
\f
* Changes in Specialized Modes and Packages in Emacs 24.1
+** Archive Mode has basic support to browse 7z archives.
+
+** partial-completion-mode is now obsolete.
+You can get the same behavior with
+(setq completion-styles '(partial-completion initials)).
+
+** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
** Customize
*** Customize buffers now contain a search field.
** VC and related modes
+*** New VC commands: vc-log-incoming, vc-log-outgoing, vc-find-conflicted-file.
+
*** vc-dir for Bzr supports viewing shelve contents and shelving snapshots.
+*** Special markup can be added to log-edit buffers.
+The log-edit buffers are expected to have a format similar to email messages
+with headers of the form:
+ Author: <author of this change>
+ Summary: <one line summary of this change>
+ Fixes: <reference to the bug fixed by this change>
+Some backends handle some of those headers specially, but any unknown header
+is just left as is in the message, so it is not lost.
+
** Directory local variables can apply to file-less buffers.
For example, adding "(diff-mode . ((mode . whitespace)))" to your
-.dir-locals.el file, will turn on `whitespace-mode' for *vc-diff*
-buffers.
+.dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
+
+** s-region.el is now declared obsolete, superceded by shift-select-mode
+enabled by default in 23.1.
+
+** gdb-mi
+
+*** GDB User Interface migrated to GDB Machine Interface and now
+supports multithread non-stop debugging and debugging of several
+threads simultaneously.
\f
* New Modes and Packages in Emacs 24.1
\f
* Incompatible Lisp Changes in Emacs 24.1
+** Test for special mode-class was moved from view-file to view-buffer.
+
+** Passing a nil argument to a minor mode function now turns the mode
+ ON unconditionally.
\f
* Lisp changes in Emacs 24.1
+** New completion style `substring'.
+
** Image API
*** When the image type is one of listed in `image-animated-types'
-and the number of sub-images in the image is more then one, then the
+and the number of sub-images in the image is more than one, then the
new function `create-animated-image' creates an animated image where
sub-images are displayed successively with the duration defined by
`image-animate-max-time' and the delay between sub-images defined
by the Graphic Control Extension of the image.
+*** `image-extension-data' is renamed to `image-metadata'.
+
+** Progress reporters can now "spin".
+The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
+now be nil, or omitted. This makes a "non-numeric" reporter. Each
+time you call `progress-reporter-update' on that progress reporter,
+with a nil or omitted VALUE argument, the reporter message is
+displayed with a "spinning bar".
+
\f
* Changes in Emacs 24.1 on non-free operating systems