=== New features in 1.31 ===
* Wikimedia\Rdbms\IDatabase->select() and similar methods now support
joins with parentheses for grouping.
+* As a first pass in standardizing dialog boxes across the MediaWiki product,
+Html class now provides helper methods for messageBox, successBox, errorBox and
+warningBox generation.
=== External library changes in 1.31 ===
==== Upgraded external libraries ====
-* Updated dev dependancy phpunit/phpunit from v4.8.35 to v4.8.36.
+* …
==== New external libraries ====
* …