+* ParserOptions defaults 'tidy' to true now, since the untidy modes of the
+ parser are being deprecated and ParserOptions::getCanonicalOverrides()
+ has always been true at any rate.
+* A number of deprecated methods for API documentation, intended for overriding
+ by extensions, are no longer called by MediaWiki, and will emit deprecation
+ notices if your extension attempts to use them:
+ * ApiBase::getDescription() (deprecated in 1.25)
+ * ApiBase::getParamDescription() (deprecated in 1.25)
+ * ApiBase::getExamples() (deprecated in 1.25)
+ * ApiBase::getDescriptionMessage() (deprecated in 1.30)
+ Additionally, the 'APIGetDescription' and 'APIGetParamDescription' hooks have
+ been removed, as their only use was to let extensions override values returned
+ by getDescription() and getParamDescription(), respectively.
+* The authentication hooks 'AbortAutoAccount' 'AbortNewAccount', 'AbortLogin',
+ 'LoginUserMigrated', 'UserCreateForm', and 'UserLoginForm', all deprecated by
+ the creation of AuthManager in 1.27, have been removed. This also means that
+ the FakeAuthTemplate and LoginForm classes are removed, that FakeAuthTemplate
+ is no longer passed into LoginSignupSpecialPage->getFieldDefinitions(), and
+ that LoginSignupSpecialPage->getBCFieldDefinitions() is removed.
+* The 'jquery.localize' module, deprecated in 1.32, has been removed. Instead,
+ use 'jquery.i18n'.
+* The hooks LanguageGetSpecialPageAliases and LanguageGetMagic, deprecated since
+ 1.16, have now been removed. Instead, use $specialPageAliases or $magicWords
+ respectively in a $wgExtensionMessagesFiles file.