* Added table option variable to the SQL patch files, so now upgrading a non-standard schema won't leave your database horribly corrupted.
* Added sql.php, for sourcing SQL files with MediaWiki variable substitution.
* Disable MySQL's strict mode at session start for MySQL 4.1+, to avoid the various problems that occur when it is on.
* Deprecated $wgUseImageResize, thumbnailing will be enabled unconditionally.
* Fixed interaction of page parameter to ImagePage with the HTML file cache
* Improved error reporting for image thumbnailing
* Fixed MIME type for SVG files, will be silently changed from image/svg to image/svg+xml after loading from the database.
* Workaround for djvutoxml bug #1704049 (poor performance). Use djvudump instead.
* Fixed odd behaviour in ImagePage on DjVu thumbnailing errors
* Improved error reporting for image thumbnailing
* Added sharpening option for ImageMagick thumbnailing
* Removed Image::selectPage(), added page parameters to getWidth() and getHeight(), deprecated Image::renderThumb() and Image::getThumbnail()
* Changed default contents of img_metadata to empty string instead of a:0:{}
* Moved responsibility for respecting $wgGenerateThumbnailOnParse from the UI to Image.php
The ob_start() section should preferably be removed from older
LocalSettings.php files.
* Give Content-Length header for HTTP/1.0 clients.
* Partial support for Flash cross-domain-policy filtering. Text entry points should be protected, but uploads are not.
PHP config var cgi.fix_pathinfo isn't detectable through ini_get(), but
we can find some side-effects. Only tested on lighttpd so far, hopefully
right on Apache too!
lighty documentation says you have to use the "broken-scriptfilename" => "enable"
option on lighty fast-cgi config, plus set cgi.fix_pathinfo to make it work.
I've found that cgi.fix_pathinfo is on by default in current PHP (tested 5.2.0),
and I don't seem to have to change the defaults on lighty either.
* Made lines from initialiseMessages() appear as list items during installation
* Moved the bulk of the localisation data from the Language*.php files to the Messages*.php files. Deleted most of the Languages*.php files.
* Introduced "stub global" framework to provide deferred initialisation of core modules.
* Removed placeholder values for $wgTitle and $wgArticle, these variables will now be null during the initialisation process, until they are set by index.php or another entry point.
* Added DBA cache type, for BDB-style caches.
* Removed custom date format functions, replacing them with a format string in the style of PHP's date(). Used string identifiers instead of integer identifiers, in both the language files and user preferences. Migration should be transparent in most cases.
* Simplified the initialisation API for LoadBalancer objects.
* Removed the broken altencoding feature.
* Moved default user options and toggles from Language to User. Language objects are still able to define default preference overrides and extra user toggles, via a slightly different interface.
* Don't include the date option in the parser cache rendering hash unless $wgUseDynamicDates is enabled.
* Merged LanguageUtf8 with Language. Removed LanguageUtf8.php.
* Removed inclusion of language files from the bottom of Language.php. This is now consistently done from Language::factory().
* Add the name of the executing maintenance script to the debug log. Start the profiler during maintenance scripts.
* Added "serialized" directory, for storing precompiled data in serialized form.
