+* WebInstaller::getInfoBox(), getWarningBox() and getErrorBox() are deprecated.
+ Use Html::errorBox() or Html::warningBox() instead.
+* Use of ActorMigration with 'ar_user', 'img_user', 'oi_user', 'fa_user',
+ 'rc_user', 'log_user', and 'ipb_by' is deprecated. Queries should be adjusted
+ to use the corresponding actor fields directly. Note that use with
+ 'rev_user' is *not* deprecated at this time.
+* Specifying both the class and factory parameters for
+ ApiModuleManager::addModule is now deprecated. The ObjectFactory spec should
+ be used instead.
+* The UserIsHidden hook is deprecated. Use GetUserBlock instead, and add a
+ system block that hides the user.
+* The GetBlockedStatus hook is deprecated. Use GetUserBlock instead, to add or
+ remove a block.
+* $wgContentHandlerUseDB is deprecated and should always be true.
+* StreamFile::send404Message() and StreamFile::parseRange() are now deprecated.
+ Use HTTPFileStreamer::send404Message() and HTTPFileStreamer::parseRange()
+ respectively instead.
+* Global variable $wgSysopEmailBans is deprecated; to allow sysops to ban
+ users from sending emails, use
+ $wgGroupPermissions['sysop']['blockemail'] = true;
+* ApiQueryBase::showHiddenUsersAddBlockInfo() is deprecated. Use
+ ApiQueryBlockInfoTrait instead.
+* PasswordReset is now a service, its direct instantiation is deprecated.
+* RESTBagOStuff users should specify either "JSON" or "PHP" serialization type.
+* Language::getLocalisationCache() is deprecated. Use MediaWikiServices
+ instead.
+* The following Language methods are deprecated: isSupportedLanguage,
+ isValidCode, isValidBuiltInCode, isKnownLanguageTag, fetchLanguageNames,
+ fetchLanguageName, getFileName, getMessagesFileName, getJsonMessagesFileName.
+ Use the new LanguageNameUtils class instead. (Note that fetchLanguageName(s)
+ are called getLanguageName(s) in the new class.)