PostgreSQL 9.6 is currently bundle with exacqVision Enterprise Manager. This version will reach end of life in November 2021.
The PostgreSQL Global Development Group will release the final update for 9.6 on November 11, 2021. See their versioning page for details at https://www.postgresql.org/support/versioning/
AWS has announced PostgreSQL 9.6 on will reach end of life on January 31, 2022. See the forum announcement at https://forums.aws.amazon.com/ann.jspa?annID=8512 for more details.
Preparation and testing for a migration to a newer version of PostgreSQL is ongoing and will be bundled in exacqVision Enterprise Manager.