repmgr

Provides utilities to set up standby servers and perform administrative tasks like failover and switchover, extending PostgreSQL's native capabilities without adding unnecessary complexity, as highlighted in the README.

Supports PostgreSQL versions from 13 to 17, with compatibility for older versions, ensuring it works with current and recent releases, backed by a detailed compatibility matrix in the documentation.

Maintained by EnterpriseDB, which offers 24x7 production support, configuration assistance, and training, making it reliable for enterprise deployments, as noted in the support section.

Full documentation is available at repmgr.org, including guides and tutorials for setup and troubleshooting, aiding administrators in managing replication clusters effectively.