* Updated monolog from v1.18.2 to 1.22.1.
* Updated wikimedia/composer-merge-plugin from v1.3.1 to v1.4.0.
* Updated OOjs from v1.1.10 to v2.0.0.
+* Updated jQuery from v1.11.3 to v3.2.1 (including jQuery Migrate v3.0.0).
==== New external libraries ====
* Added wikimedia/timestamp v1.0.0.