Following the open source community announcement of updates to the PostgreSQL database, we updated Amazon Aurora PostgreSQL-Compatible Edition to support PostgreSQL 14.7, 13.10, 12.14, and 11.19. These releases contain bug fixes and improvements by the PostgreSQL community. Refer to the Aurora version policy to help you decide how often and how to plan your upgrade. As a reminder, if you are running any version of Amazon Aurora PostgreSQL 11, you must upgrade to a newer major version by January 31, 2024.
Source:: Amazon AWS