Amazon RDS for Oracle now supports April 2022 patch set update (PSU) for 12.1 and release updates (RU) for 19c & 21c August 2, 2022 By admin Amazon Relational Database Service (Amazon RDS) for Oracle now supports the April 2022 Patch Set Update (PSU) for Oracle Database 12.1 and Release Updates (RU) for Oracle Database 19c and 21c.