Supported PostgreSQL versions

Puppet Enterprise supports the following PostgreSQL versions for PE-managed and unmanaged (external) PostgreSQL deployments.

PE version	PE-managed PostgreSQL	Unmanaged (external) PostgreSQL
PE 2025.11+	PostgreSQL 17	PostgreSQL 17
PE ≤ 2025.10	PostgreSQL 14	PostgreSQL 14

For PE 2025.11 and later, PostgreSQL 17 is required for unmanaged (external) PostgreSQL deployments. PostgreSQL 14 is not supported and the PE installer does not accept PostgreSQL 14 as an external database.

External PostgreSQL requirements

If you use an unmanaged (external) PostgreSQL server:

• Configure the PostgreSQL server to use the en_US.UTF-8 locale and UTF-8 encoding.

• Install the required PostgreSQL extensions before running the PE installer. For more information, see Install PE with an unmanaged PostgreSQL service.