Amazon RDS for Oracle now supports July 2021 Patch Set Update (PSU) for 12.1 and Release Updates (RU) for 12.2 and 19c September 1, 2021 By admin Amazon Relational Database Service (RDS) for Oracle now supports the July 2021 Patch Set Update (PSU) for Oracle Database 12.1 and Release Updates (RU) for Oracle Database 12.2 and 19c.