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* Changes in Emacs 21.1
+** You can now easily create new *Info* buffers using either M-x clone-buffer
+or C-u m <entry> RET. M-x clone-buffer can also be used on *Help* and
+several other special buffers.
+
** Emacs can now support 'wheeled' mice (such as the MS IntelliMouse)
under XFree86. To enable this, simply put (mwheel-install) in your
.emacs file.
reference parameters are recognized. The modes require font-lock mode
to be enabled.
+*** smerge-mode.el provides `smerge-mode', a simple minor-mode for files
+containing diff3-style conflict markers, such as generated by RCS.
+
*** 5x5.el is a simple puzzle game.
*** hl-line.el provides a minor mode to highlight the current line.
When you add a new item, please add it without either +++ or ---
so I will know I still need to look at it -- rms.
+** easy-mmode-define-minor-mode now takes an additional BODY argument
+and is renamed `define-minor-mode'.
+
** If an abbrevs has only a hook, and that hooks has a non-nil
`no-self-insert' property, the return value of the hook specifies
whether an expansion has been done or not. If it returns nil, no
saved table is restored, even in case of an abnormal exit. Value is
what BODY returns.
+** Regular expressions now support Perl's non-greedy *? +? and ??
+operators.
+
** The optional argument BUFFER of function file-local-copy has been
removed since it wasn't used by anything.
preceding expression either once or not at all. For example,
@samp{ca?r} matches @samp{car} or @samp{cr}; nothing else.
+@item *?, +?, ??
+are non-greedy variants of the operators above. The normal operators
+@samp{*, +, ?} are greedy in that they match as much as they can,
+while if you prepend a @samp{?} after them, it makes them non-greedy
+in that they will match as little as possible.
+
@item [ @dots{} ]
is a @dfn{character set}, which begins with @samp{[} and is terminated
by @samp{]}. In the simplest case, the characters between the two