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* Changes in Emacs 21.1
+** `browse-url-gnome-moz' is a new option for
+`browse-url-browser-function', invoking Mozilla in GNOME.
+
++++
** The new global minor mode `auto-image-file-mode' allows image files
to be visited as images.
++++
** The functions `keep-lines', `flush-lines' and `how-many' now
operate on the active region in Transient Mark mode.
remains visible even when the buffer has been scrolled. This behavior
may be disabled by customizing the option `Info-use-header-line'.
++++
** `gnus-user-agent' is a new possibility for `mail-user-agent'. It
is like `message-user-agent', but with all the Gnus paraphernalia.
** The recommended way of using Iswitchb is via the new global minor
mode `iswitchb-mode'.
++++
** Gnus changes.
The Gnus NEWS entries are short, but they reflect sweeping changes in
+++
** New command M-x describe-character-set reads a character set name
-and displayes information about that.
+and displays information about that.
** When an error is signaled during the loading of the user's init
file, Emacs now pops up the *Messages* buffer.
and related parameters like frequency and delay can be customized in
the group `cursor'.
++++
** New font-lock support mode `jit-lock-mode'.
This support mode is roughly equivalent to `lazy-lock' but is
`automatic-hscrolling' is set (the default). This setting can be
customized.
++++
** Tool bar support.
Emacs supports a tool bar at the top of a frame under X. For details
* Lisp changes made after edition 2.6 of the Emacs Lisp Manual,
(Display-related features are described in a page of their own below.)
++++
+** The new function `display-message-or-buffer' displays a message in
+the echo area or pops up a buffer, depending on the length of the
+message.
+
** The new macro `with-auto-compression-mode' allows evaluating an
expression with auto-compression-mode enabled.