Oracle Application Express (APEX) 26.1 is available for new Autonomous Container Databases (ACD)

You can use Oracle Application Express (APEX) 26.1 to develop applications for Autonomous AI Database on Dedicated Exadata Infrastructure. Newly created Autonomous Container Databases (ACDs) are provisioned with APEX 26.1. Existing ACDs continue to use the APEX version with which they were provisioned. To use the latest APEX features with existing applications, submit a Service Request (SR) through My Oracle Support to request an APEX upgrade. Include the OCIDs of the tenancy and Autonomous AI Database in the SR.

See Build an Application with Oracle APEX AI Application Generator for details.