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by grzm 2605 days ago
PostgreSQL versioning is similar to semantic versioning, but doesn't follow it precisely. Major versions require a dump and restore (or other transform, such as an upgrade) of the on-disk data. Minor versions are fixes. Prior to PostgreSQL 10, the changes in the second numeric place are considered "major" versions. So, the past 5 major versions are 11, 10, 9.6, 9.5, and 9.4. The most recent versions of each of those are respectively 11.3, 10.8, 9.6.13, 9.5.17, and 9.4.22.