- Amazon RDS for Oracle adds support for the September 2026 Monthly Recommended Patch (MRP) for Oracle 19c and 26ai, upgradeable via console, SDK, or CLI.
- The MRP builds on the July 2026 Release Update, bundles the September 2026 Critical Security Patch Update and updates the Oracle time zone file (DST version 46) for several regions.
- Upgrading to this MRP is recommended to obtain the latest security fixes.