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* Changes in Emacs 21.1
+** M-; now calls comment-dwim which tries to do something clever based
+on the context.
+
** The function `getenv' is now callable interactively.
** The many obsolete language `setup-...-environment' commands have
** New modes and packages
+*** The comment operations are now provided by the newcomment.el
+package which allows different styles of comment-region and should
+be more robust while offering the same functionality.
+
*** The Ebrowse package implements a C++ class browser and tags
facilities tailored for use with C++. It is documented in a
separate Texinfo file.