+* MagicWord::replaceMultiple() (deprecated in 1.25) was removed.
+* WikiImporter now requires the second parameter to be an instance of the Config,
+ class. Prior to that, the Config parameter was optional (a behavior deprecated in
+ 1.25).
+* Removed 'jquery.mwExtension' module. (deprecated since 1.26)
+* mediawiki.ui: Deprecate greys, which are not part of WikimediaUI color palette
+ any more.
+* CdbReader, CdbWriter, CdbException classes (deprecated in 1.25) were removed.
+ The namespaced classes in the Cdb namespace should be used instead.
+* IPSet class (deprecated in 1.26) was removed. The namespaced IPSet\IPSet
+ should be used instead.
+* RunningStat class (deprecated in 1.27) was removed. The namespaced
+ RunningStat\RunningStat should be used instead.
+* MWMemcached and MemCachedClientforWiki classes (deprecated in 1.27) were removed.
+ The MemcachedClient class should be used instead.
+* EditPage::isOouiEnabled() is deprecated and will always return true.
+* Parser::getRandomString() (deprecated in 1.26) was removed.
+* Parser::uniqPrefix() (deprecated in 1.26) was removed.
+* Parser::extractTagsAndParams() now only accepts three arguments. The fourth,
+ $uniq_prefix was deprecated in 1.26 and has now been removed.
+* (T172514) The following tables have had their UNIQUE indexes turned into proper
+ PRIMARY KEYs for increased maintainability: categorylinks, imagelinks, iwlinks,
+ langlinks, log_search, module_deps, objectcache, pagelinks, query_cache, site_stats,
+ templatelinks, text, transcache, user_former_groups, user_properties.
+* IDatabase::nextSequenceValue() is no longer needed by any database backends
+ (formerly it was needed by PostgreSQL and Oracle), and is now deprecated.