PostgreSQL Version and Upgrades
Details about supported OCI Database with PostgreSQL system versions and version upgrade schedule.
The supported major versions of PostgreSQL are 14, 15, and 16.
Upgrades
When a new minor version of a major version is released, existing database systems are automatically upgraded to the new minor version during their maintenance windows. You can't change the minor version manually.
You need to create a new database system to upgrade major versions. You can use native PostgreSQL utilities such as pg_dump and pg_restore for major version upgrades. For an example, see Importing, Exporting, and Migrating Databases.