The version support is five years: https://www.postgresql.org/support/versioning/ https://www.postgresql.org/support/versioning/ As long as you stay well ahead

The version support is five years: https://www.postgresql.org/support/versioning/ https://www.postgresql.org/support/versioning/ As long as you stay well ahead of that, you are fine. However, I'd strongly recommend testing your applications with new versions as they come out, or in beta (even better). You may learn about new features, find bugs in your application, find bugs in your migration processes, etc. If you bring any problems to the community right away, then by the time you actually want to upgrade, the problems may already be solved in the newer release.