Change Details

A schema migration configuration value is needed to support a staged deployment for using the `cu_useragent` table.

A schema migration configuration value is needed to support a staged deployment for using the `cu_useragent` table. ======Acceptance criteria * [] The schema migration is created with the value for the time being set to `SCHEMA_COMPAT_OLD` * [] The schema migration value should be pinned on all WMF wikis to `SCHEMA_COMPAT_OLD`

A schema migration configuration value is needed to support a staged deployment for using the `cu_useragent` table. ======Acceptance criteria * [] The schema migration is created with the value for the time being set to `SCHEMA_COMPAT_OLD` * [] The schema migration value should be pinned on all WMF wikis to `SCHEMA_COMPAT_OLD`