+* Removed 'jquery.mwExtension' module. (deprecated since 1.26)
+* mediawiki.ui: Deprecate greys, which are not part of WikimediaUI color palette
+ any more.
+* CdbReader, CdbWriter, CdbException classes (deprecated in 1.25) were removed.
+ The namespaced classes in the Cdb namespace should be used instead.
+* IPSet class (deprecated in 1.26) was removed. The namespaced IPSet\IPSet
+ should be used instead.
+* RunningStat class (deprecated in 1.27) was removed. The namespaced
+ RunningStat\RunningStat should be used instead.