* …
==== New external libraries ====
+* Added wikimedia/object-factory 1.0.0
* …
==== Removed and replaced external libraries ====
* OutputPage::setSquidMaxage(); deprecated in 1.27
* OutputPage::readOnlyPage(); deprecated in 1.25
* OutputPage::rateLimited(); deprecated in 1.25
+ * Additionally, the protected OutputPage::$mExtStyles array, only accessed through
+ the above and with no known uses, was removed.
* The no-op method Skin::showIPinHeader(), deprecated in 1.27, was removed.
+* \ObjectFactory (no namespace) is deprecated, the namespaced \Wikimedia\ObjectFactory
+ from the wikimedia/object-factory library should be used instead.
+* CommentStore::newKey is deprecated. Get an instance from MediaWikiServices instead.
+* The following CommentStore methods have had their signatures changed to introduce a $key parameter,
+ usage of the methods on instances retrieved from CommentStore::newKey will remain unchanged but deprecated:
+ * CommentStore::getFields
+ * CommentStore::getJoin
+ * CommentStore::getComment
+ * CommentStore::getCommentLegacy
+ * CommentStore::insert
+ * CommentStore::insertWithTemplate
== Compatibility ==
MediaWiki 1.31 requires PHP 5.5.9 or later. Although HHVM 3.18.5 or later is supported,