+* BREAKING CHANGE: The files commonElements.css, commonContent.css and
+ commonInterface.css (in skins/common/) have been removed. Skins may no longer
+ rely on their presence and include them in their style modules. ResourceLoader
+ modules introduced in MediaWiki 1.23 should be loaded instead:
+ - skins/common/commonElements.css → 'mediawiki.skinning.elements' module
+ - skins/common/commonContent.css → 'mediawiki.skinning.content' module
+ - skins/common/commonInterface.css → 'mediawiki.skinning.interface' module