This page describes database version support policies for AlloyDB for PostgreSQL.
AlloyDB instances run a database server created and maintained by Google that is fully compatible with PostgreSQL. You have control over which major PostgreSQL version your instances are compatible with. AlloyDB keeps the minor version compatibility of instances automatically updated.
Every AlloyDB cluster supports compatibility with a specific PostgreSQL major version—for example, PostgreSQL 15. You choose the major version when creating the cluster. A cluster retains its chosen major version for its entire lifetime. You can effectively upgrade a cluster by migrating its data to a new cluster; for more information, see Upgrade a cluster's major server version.
Every AlloyDB instance runs a database service that is compatible with a specific minor PostgreSQL version—for example, 15.4. AlloyDB releases minor version compatibility updates several times per year, and automatically applies these updates to instances. These updates keep every instance up to date with the most recent bug fixes and security patches available for its major version.
Major and minor version support
AlloyDB supports compatibility with the following PostgreSQL database versions:
PostgreSQL compatible version |
AlloyDB |
AlloyDB Omni |
|---|---|---|
PostgreSQL 15 (default) |
15.4 |
15.4 15.2 |
PostgreSQL 14 |
14.9 |
Not applicable |
Major version support timeline
The following table shows the dates when AlloyDB support for compatible versions became generally available (GA):
PostgreSQL compatible version |
AlloyDB version support GA date |
AlloyDB Omni version support GA Date |
|---|---|---|
PostgreSQL 15 |
January 19, 2024 |
October 11, 2023 |
PostgreSQL 14 |
December 12, 2022 |
Not applicable |