* The type string for the parameter $lang of DateFormatter::getInstance is
deprecated.
* Wikimedia\Rdbms\SavepointPostgres is deprecated.
+* The DO_MAINTENANCE constant is deprecated. RUN_MAINTENANCE_IF_MAIN should be
+ used instead.
=== Other changes in 1.31 ===
* Browser support for Internet Explorer 10 was lowered from Grade A to Grade C.