Upgrading the UGC database
If you have UGC (User-Generated Content) installed as a part of SDL Web 8.5 or SDL Tridion Sites 9, upgrade your existing Oracle or Microsoft SQL Server UGC database by running a PowerShell script (for Oracle or Microsoft SQL Server on Windows) or manually running scripts (for Oracle on a non-Windows system). The UGC feature is deprecated as of SDL Tridion Sites 9.1.