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Percona Operators Documentation

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Upgrade Percona Distribution for PostgreSQL

There are two types of PostgreSQL upgrades available through the Operator:

  • Minor upgrade is upgrading within the same major version. For example, from 15.5 to 15.7 or from 16.1 to 16.3.
  • Major upgrade is upgrading across major versions, such as from 15.5 to 16.3.

Major upgrades are supported starting from Operator 2.4.0 as a tech preview. Starting with Operator 2.9.0, major upgrades are generally available (GA) and fully supported.

Before Operator 2.4.0, only minor upgrades were allowed.

Image compatibility

When the target PostgreSQL image uses a different UBI major, it ships a different glibc (and possibly ICU) collation library. Collation-dependent indexes can become inconsistent until you rebuild them. Both upgrade procedures include those steps after the new image is running.

Choose an upgrade type

Run a minor version upgrade Run a major version upgrade

Last update: September 8, 2026
Created: November 13, 2025