Amazon RDS for Oracle: September 2026 MRP Update
π Amazon RDS for Oracle now supports the September 2026 Monthly Recommended Patch (MRP) for Oracle Database versions 19c and 26ai. The MRP builds on the July 2026 Release Update and includes the Oracle September Critical Security Patch Update (CSPU) plus additional fixes. The release also updates the Oracle time zone file (DST version 46) to reflect recent daylight saving and permanent offset changes in regions such as British Columbia, Alberta, Morocco, and Western Sahara. Upgrade options include creating new instances or applying engine versions 19.0.0.0.ru-2026-07.mrp-2026-09.r2 or 26.0.0.0.ru-2026-07.mrp-2026-09.r2 via the Console, SDK, or CLI.