Heroku PostgreSQL 9.6 deprecation - Update

Change effective on 10 February 2023

Heroku has deprecated support for all databases running PostgreSQL 9.6. As announced, since October 2021, we have attempted to upgrade all instances on PostgreSQL 9.6 to the next stable version, however some failed due to technical reasons. We urge customers to upgrade their database as soon as possible. If no action is taken by February 25, 2023, we will begin revoking access to databases running PostgreSQL 9.6 and non-compliant databases are subject to deletion at our discretion once March 11, 2023 deadline passes.