* ApiQuery::setGeneratorContinue() was removed (deprecated since 1.24).
* ApiMain::getModules() was removed (deprecated since 1.21).
* ApiBase::getVersion() was removed (deprecated since 1.21).
+* Language::getLanguageName() was removed (deprecated since 1.20).
* Language::getLanguageNames() was removed (deprecated since 1.20).
* Language::getTranslatedLanguageNames() was removed (deprecated since 1.20).