&repmgr; is updated regularly with point releases (e.g. 4.0.1 to 4.0.2) containing bugfixes and other minor improvements. Any substantial new functionality will be included in a feature release (e.g. 4.0.x to 4.1.x). &repmgr; is implemented as a PostgreSQL extension; to upgrade it, first install the updated package, then in the database where the &repmgr; extension is installed, execute ALTER EXTENSION repmgr UPDATE. If repmgrd is running, it may be necessary to restart the PostgreSQL server if the upgrade contains changes to the shared object file used by repmgrd; check the release notes for details.