default mode.
* CACHE_ACCEL now only supports APC(u) or WinCache. XCache support was removed
as upstream is inactive and has no plans to move to PHP 7.
+* The old CategorizedRecentChanges feature, including its related configuration
+ option $wgAllowCategorizedRecentChanges, has been removed.
=== New features in 1.31 ===
* Wikimedia\Rdbms\IDatabase->select() and similar methods now support