We are excited to announce that Postgres version 15 is now generally available! The developers of Postgres release a new version around October every year, and we aim to release it on Heroku Postgres each Q1. Additionally, we track Postgres end-of-life dates to ensure that our service and our customers are always on the latest supported releases.
If you are new to Heroku, great! Your new database defaults to Postgres 15. If you already have a Heroku Postgres database on an older version, we make the upgrade process simple. And if you are still on one of the deprecated versions, such as 9.6 and 10, we urge you to upgrade off of them as soon as possible. We strongly recommend using the...