Amazon RDS Custom SQL Server Gets Latest Security Patches
Amazon RDS Custom for SQL Server now supports the newest Cumulative Updates and GDR patches—SQL Server 2019 CU32+GDR and SQL Server 2022 CU26+GDR. You can apply these recommended security fixes directly through the RDS Management Console, AWS SDK, or CLI to keep your database instances hardened and up-to-date.
source: [aws/whats-new]