* Add @addtogroup tags to various classes, to try and group conceptually-related classes together.
* Add brief descriptions to various Special pages, thanks to Phil Boswell.
* Moving some docs to be right above the classes they represent, so that they are picked up.
* Strict Standards: Undefined index: switch in includes/Parser.php on line 3849
* Strict Standards: Undefined index: ref in includes/Parser.php on line 3818
* Strict Standards: Non-static method OutputPage::setEncodings() should not be called statically in index.php on line 11
* Strict Standards: Only variables should be assigned by reference in includes/Skin.php on line 888
* Strict Standards: Non-static method Title::newFromURL() should not be called statically in includes/SpecialContributions.php on line 178
* Strict Standards: Only variables should be assigned by reference in includes/GlobalFunctions.php on line 2054
* Strict Standards: Undefined index: contributions-summary in languages/Language.php on line 764
* Strict Standards: Undefined index: trackbackhtml in skins/MonoBook.php on line 86
* Strict Standards: Undefined index: blockip in skins/MonoBook.php on line 204
* Strict Standards: Undefined index: tagline in skins/MonoBook.php on line 261
* Strict Standards: Undefined index: uselang in includes/SkinTemplate.php on line 1159
* Strict Standards: Non-static method CoreParserFunctions::plural() cannot be called statically in includes/Parser.php on line 2902
* Strict Standards: Undefined offset: 0 in includes/SkinTemplate.php on line 196
* Strict Standards: Undefined index: USE INDEX in includes/Database.php on line 1015
* Strict Standards: Undefined index: image_tests in includes/Parser.php on line 3488
* Strict Standards: Undefined offset: 0 in includes/Parser.php on line 3507
* Strict Standards: Non-static method ChangesList::newFromUser() should not be called statically in includes/SpecialWatchlist.php on line 361
* Strict Standards: Non-static method RecentChange::newFromCurRow() should not be called statically in includes/SpecialWatchlist.php on line 367
* Strict Standards: is_a(): Deprecated. Please use the instanceof operator in includes/Exception.php on line 168
* Strict Standards: Non-static method LogPage::logName() should not be called statically in includes/SpecialContributions.php on line 325
* Strict Standards: ob_end_flush(): failed to delete and flush buffer. No buffer to delete or flush. in maintenance/commandLine.inc on line 191
* Strict Standards: Undefined index: meatball in languages/Language.php on line 234
* Strict Standards: rmdir(/tmp/mwParser-2108164586-images/thumb): Directory not empty in maintenance/parserTests.inc on line 605
* Cleaning out some new temp files left over by parserTests (there were one or two straggler dirs/files that would persist after the test run ended, due to new tests being added over time)
* Strict Standards: Non-static method CoreParserFunctions::special() cannot be called statically in includes/Parser.php on line 2902
* Strict Standards: Declaration of ListUsersPage::preprocessResults() should be compatible with that of QueryPage::preprocessResults() in includes/SpecialListusers.php on line 38
* Strict Standards: Only variables should be passed by reference in includes/SpecialBlockip.php on line 175
* Strict Standards: Skin::include_once(skins/Standard.deps.php) [<a href='function.include-once'>function.include-once</a>]: failed to open stream: No such file or directory in includes/Skin.php on line 121
* Strict Standards: Declaration of ApiMain::getResult() should be compatible with that of ApiBase::getResult() in includes/api/ApiMain.php on line 35
* Strict Standards: is_a(): Deprecated. Please use the instanceof operator in includes/WikiError.php on line 63
* Strict Standards: Non-static method WikiError::isError() should not be called statically in includes/SpecialImport.php on line 64
* Strict Standards: Non-static method ImportStreamSource::newFromInterwiki() should not be called statically in includes/SpecialImport.php on line 58<b
* Strict Standards: Only variables should be assigned by reference in includes/SpecialUndelete.php on line 501
* Strict Standards: Non-static method Image::newFromName() should not be called statically in thumb.php on line 56
* Strict Standards: Non-static method CoreParserFunctions::numberoffiles() cannot be called statically in includes/Parser.php on line 2902
* Strict Standards: Non-static method CoreParserFunctions::statisticsFunction() should not be called statically in includes/CoreParserFunctions.php on line 139
* Strict Standards: Non-static method CoreParserFunctions::isRaw() should not be called statically in includes/CoreParserFunctions.php on line 128
* Strict Standards: Non-static method CoreParserFunctions::grammar() cannot be called statically in includes/Parser.php on line 2902
* Strict Standards: Undefined offset: 1 in includes/SpecialMIMEsearch.php on line 130
* Strict Standards: Undefined index: recentchangeslinked in skins/MonoBook.php on line 184
* Strict Standards: Declaration of DumpNotalkFilter::pass() should be compatible with that of DumpFilter::pass() in includes/Export.php on line 612
* Strict Standards: Declaration of DumpNamespaceFilter::pass() should be compatible with that of DumpFilter::pass() in includes/Export.php on line 665
* Strict Standards: Non-static method ImportStreamSource::newFromUpload() should not be called statically in includes/SpecialImport.php on line 46
* Strict Standards: Undefined offset: 5 in includes/Sanitizer.php on line 396
* Strict Standards: Undefined index: wikidbUserName in includes/SpecialUserlogin.php on line 562
* Strict Standards: Only variables should be assigned by reference in includes/api/ApiQueryBase.php on line 95
* Strict Standards: Only variables should be assigned by reference in includes/api/ApiQueryBase.php on line 116
* Strict Standards: Only variables should be assigned by reference in includes/api/ApiQueryWatchlist.php on line 128
* Strict Standards: Undefined property: stdClass::$rc_id in includes/api/ApiQueryBase.php on line 131
* Strict Standards: Undefined property: stdClass::$rc_last_oldid in includes/api/ApiQueryBase.php on line 164
* Strict Standards: Undefined property: stdClass::$rc_moved_to_ns in includes/api/ApiQueryBase.php on line 285
* Strict Standards: Undefined property: stdClass::$rc_patrolled in includes/api/ApiQueryBase.php on line 176
* Strict Standards: Undefined index: comment in includes/api/ApiFeedWatchlist.php on line 85
* Strict Standards: Undefined offset: 0 in includes/Skin.php on line 302
* Strict Standards: Non-static method User::SetupSession() should not be called statically in includes/SpecialUserlogin.php on line 15
... There are certain to be other things too, so this is not intended to be comprehensive, rather the above just stops most of the notifications I observed.
* 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.
