opacity; the default is 20.
** Internationalization changes
-
++++
*** The Emacs character set is now a superset of Unicode.
(It has about four times the code space, which should be plenty).
The internal encoding used for buffers and strings is now
Unicode-based and called `utf-8-emacs'. This encoding is backwards
-compatible with Unicode's UTF-8 encoding. The internal encoding
+compatible with Unicode's UTF-8 encoding. The encoding
+`emacs-internal' is an alias for this. The internal encoding
previously used by Emacs, `emacs-mule', is still available.
During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files.
\f
* Lisp Changes in Emacs 23.1
-** New coding system alias `emacs-internal'.
-
+++
** The new variable `generate-autoload-cookie' controls the magic comment
string used by `update-file-autoloads' to find autoloaded forms. The
*** The variable `inhibit-changing-match-data', if non-nil, prevents
the search and match primitives from changing the match data.
----
++++
*** New functions `word-search-forward-lax' and `word-search-backward-lax'.
These are like `word-search-forward and `word-search-backward', except
that the end of the search string need not match a word boundary,
`old-name', `iso-10646-comment', `uppercase', `lowercase', and
`titlecase'.
++++
*** The functions `modify-syntax-entry' and `modify-category-entry' now
accept a cons of characters as the first argument, and modify all
entries in that range of characters.