1 July 2019
IS-1211-1 Fixed.
IS-1307-1 Fixed.
IS-1293-1 Fixed handling of UTF8mb4 4-byte emoji characters in backups, clones, and migrations.
IS-1351-1 Fixed hook subsystem to not trigger "upgrade" hook for plugin/theme upgrades. They're instead triggered by "upgradeplugin" and "upgradetheme", respectively.