* Removed experimental Amethyst skin from default set
* Upgrade old skin preferences properly at Special:Preferences
(used to spontaneously switch to Classic skin for old numeric pref records)
+* Added AutoAuthenticate hook for external User object suppliers
+* (bug 3424) Update page_touched for category members on category page creation
+* (bug 4108, 4336) Remove trailing whitespace from various messages, which
+ mucks up message updating to create dupe entries
+* (bug 1735) Revamped protection interface
+* (bug 675) Add page protection level for unregistered/new accounts
+* User::isNewbie now uses the registration date and $wgAutoconfirmAge
+* Log views show message when no matches
+* Fix raw sitenotice display on database error
+* Fix autoconfirm check for old accounts
+* (bug 4368) Don't show useless empty preview on new section creation
+* Don't show useless empty preview on new page creation
+* (bug 4377) "[" is not valid in URLs
+* Don't delete thumbnails when refreshing exif metadata. This caused thumbs
+ to vanish mysteriously from time to time for files that didn't have metadata.
+* Added 'PageRenderingHash' hook for changing the parser cache hash key
+ from an extension that changes rendering based on nonstandard options.
+* Add 'deletedhistory' permission key for ability to view deleted history
+ list via Special:Undelete. Default is off, replicating the 1.5 behavior,
+ but it can be turned back on for random users to replicate the previous
+ 1.6 dev behavior.
=== Caveats ===