If you are upgrading to the VMware Tanzu for Postgres 18.x series may find that the Apache AGE (A Graph Extension) is missing from the distribution.
While the extension was previously available and bundled with Postgres 16.x (e.g., vmware-postgres16-apache_age-extension-1.6.0-1.el9.x86_64.rpm), it is not present in early 18.x releases such as 18.2.0 or 18.3.0.
The Apache AGE extension is scheduled to be officially bundled and supported starting with VMware Tanzu for Postgres 18.4.