When you add a new item, please add it without either +++ or ---
so we will look at it and add it to the manual.
+Fixme: The notes about Emacs 23 are quite incomplete.
+
+\f
+* Changes in Emacs 23.1
+
+** 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'. utf-8-emacs is backwards
+compatible with the UTF-8 encoding of Unicode. The `emacs-mule'
+coding system can still read and write data in the old internal
+encoding.
+
+There are still charsets which contain disjoint sets of characters
+where this is necessary or useful, especially for various Far Eastern
+sets which are problematic with Unicode.
+
+Since the internal encoding is also used by default for byte-compiled
+files -- i.e. the normal coding system for byte-compiled Lisp files is
+now utf-8-Emacs -- Lisp containing non-ASCII characters which is
+compiled by Emacs 23 can't be read by earlier versions of Emacs. Files
+compiled by Emacs 20, 21, or 22 are loaded correctly as emacs-mule
+(whether or not they contain multibyte characters), which makes loading
+them somewhat slower than Emacs 23-compiled files. Thus it may be worth
+recompiling existing .elc files which don't need to be shared with older
+Emacsen.
+
+** There are assorted new coding systems/aliases -- see
+M-x list-coding-systems.
+
+** New charset implementation with many new charsets.
+See M-x list-character-sets. New charsets can be defined conveniently
+as tables of unicodes.
+
+The dimension of a charset is now 0, 1, 2, or 3, and the size of each
+dimension is no longer limited to 94 or 96.
+
+Generic characters no longer exist.
+
+A dynamic charset priority list is used to infer the charset of
+unicodes for display &c.
+
+** The following facilities are obsolete:
+
+Minor modes: unify-8859-on-encoding-mode, unify-8859-on-decoding-mode
+
+\f
+* Lisp changes in Emacs 23.1
+
+map-char-table's behaviour has changed.
+
+New functions: characterp, max-char, map-charset-chars,
+define-charset-alias, primary-charset, set-primary-charset,
+unify-charset, clear-charset-maps, charset-priority-list,
+set-charset-priority, define-coding-system,
+define-coding-system-alias, coding-system-aliases, langinfo,
+string-to-multibyte.
+
+Changed functions: copy-sequence, decode-char, encode-char,
+set-fontset-font, new-fontset, modify-syntax-entry, define-charset,
+modify-category-entry
+
+Obsoleted: char-bytes, chars-in-region, set-coding-priority,
+char-valid-p
+
+\f
+* Incompatible Lisp changes
+
+Deleted functions: make-coding-system, register-char-codings,
+coding-system-spec
+
+** The character codes for characters from the
+eight-bit-control/eight-bit-graphic charsets aren't now in the range
+128-255.
\f
* Installation Changes in Emacs 22.1
contents of buffers from a core dump and save them to files easily, should
emacs crash.
+---
+** The Emacs terminal emulation in term.el uses a different terminfo name.
+The Emacs terminal emulation in term.el now uses "eterm-color" as its
+terminfo name, since term.el now supports color.
+
\f
* Startup Changes in Emacs 22.1
+++
** The default is now to use an bitmap as the icon, so the command-line options
---icon-type, -i has been replaced with options --no-bitmap-icon, -nb to turn
+--icon-type, -i has been replaced with options --no-bitmap-icon, -nbi to turn
the bitmap icon off.
+++
parts less visible than normal, so that the rest of the differing
parts is, by contrast, slightly highlighted.
+Above fontification is always done when listing completions is
+triggered at minibuffer. If you want to fontify completions whose
+listing is triggered at the other normal buffer, you have to pass
+the common prefix of completions to `display-completion-list' as
+its second argument.
+
+++
*** File-name completion can now ignore specified directories.
If an element of the list in `completion-ignored-extensions' ends in a
\f
* New Modes and Packages in Emacs 22.1
+** Rcirc is now part of the Emacs distribution.
+
+Rcirc is an Internet relay chat (IRC) client. It supports
+simultaneous connections to multiple IRC servers. Each discussion
+takes place in its own buffer. For each connection you can join
+several channels (many-to-many) and participate in private
+(one-to-one) chats. Both channel and private chats are contained in
+separate buffers.
+
+To start an IRC session, type M-x irc, and follow the prompts for
+server, port, nick and initial channels.
+
---
** Newsticker is now part of the Emacs distribution.
corresponding articles in a web browser. Its documentation is in a
separate manual.
++++
+** savehist saves minibuffer histories between sessions.
+
+++
** Filesets are collections of files. You can define a fileset in
various ways, such as based on a directory tree or based on
\f
* Changes in Specialized Modes and Packages in Emacs 22.1:
+** Changes in Allout
+
+*** Topic cryptography added, enabling easy gpg topic encryption and
+decryption. Per-topic basis enables interspersing encrypted-text and
+clear-text within a single file to your hearts content, using symmetric
+and/or public key modes. Time-limited key caching, user-provided
+symmetric key hinting and consistency verification, auto-encryption of
+pending topics on save, and more, make it easy to use encryption in
+powerful ways.
+
+*** many substantial fixes and refinements, including:
+
+ - repaired inhibition of inadvertant edits to concealed text
+ - repaired retention of topic body hanging indent upon topic depth shifts
+ - prevent "containment discontinuities" where a topic is shifted deeper
+ than the offspring-depth of its' container
+ - easy to adopt the distinctive bullet of a topic in a topic created
+ relative to it, or select a new one, or use the common topic bullet
+ - plain bullets, by default, now alternate between only two characters
+ ('.' and ','), yielding less cluttered outlines.
+ - many internal fixes.
+
** The variable `woman-topic-at-point' was renamed
to `woman-use-topic-at-point' and behaves differently: if this
variable is non-nil, the `woman' command uses the word at point
---
** MH-E changes.
-Upgraded to MH-E version 7.84. There have been major changes since
+Upgraded to MH-E version 7.85. There have been major changes since
version 5.0.2; see MH-E-NEWS for details.
** Calendar changes:
and scroll-bar settings.
+++
-*** The new function `window-split-tree' returns a frame's window split tree.
+*** The new function `window-tree' returns a frame's window tree.
+++
** Customizable fringe bitmaps
(defimage foo-image '((:type xpm :file "foo/bar.xpm")))
++++
+*** The new variable `max-image-size' defines the maximum size of
+images that Emacs will load and display.
+
** Mouse pointer features:
+++ (lispref)