action=expandtemplates instead.
=== Action API internal changes in 1.30 ===
-* …
+* ApiBase::getDescriptionMessage() and the "apihelp-*-description" messages are
+ deprecated. The existing message should be split between "apihelp-*-summary"
+ and "apihelp-*-extended-description".
=== Languages updated in 1.30 ===
MediaWiki supports over 350 languages. Many localisations are updated