[jeff-davis]

The version support is five years: 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.

[Uninen]

According to https://www.postgresql.org/support/versioning/ the "Final Release" (whatever that means) for v14 is November 2026, and for v15 is November 2024. I wonder if it's a typo or some LTS thing.

[cheald]

Almost certainly a typo. PG releases get 5 years of support.