Amazon RDS for Oracle now supports October 2020 Oracle Patch Set Updates (PSU) for 11.2.0.4 Enterprise Edition, and allows setting database system events

Amazon RDS for Oracle now supports the October 2020 Patch Set Updates (PSU) for Oracle Database 11.2.0.4 Enterprise Edition. The October 2020 PSU for Oracle Database 11.2.0.4 Standard Edition and Standard Edition One will be launched in early 2021. 

Source:: Amazon AWS