icingaweb2-module-director/schema/pgsql-migrations/upgrade_166.sql

ALTER TYPE enum_sync_rule_object_type ADD VALUE 'scheduledDowntime';
ALTER TYPE enum_sync_rule_object_type ADD VALUE 'notification';
ALTER TYPE enum_sync_rule_object_type ADD VALUE 'dependency';

INSERT INTO director_schema_migration
  (schema_version, migration_time)
  VALUES (166, NOW());