19.23 Quarterly Database Updates for EBS on Supported Cloud Services.
A significant new feature, first introduced for the January 2024 updates, is the option to use the Oracle Cloud Infrastructure (OCI) Console to patch 19c environments using either a standard or custom software image. https://blogs.oracle.com/ebsandoraclecloud/post/19-23-quarterly-database-updates-for-ebs-on-supported-cloud-services