Amazon RDS now supports the latest CU for Microsoft SQL Server

Posted on: Aug 25, 2026

Amazon Relational Database Service (Amazon RDS) for SQL Server now supports the latest Cumulative Updates (CU) for Microsoft SQL Server. This release includes support for Microsoft SQL Server 2025 CU6 KB5093421 (RDS version 17.00.4055.5.v1).

For additional information on the improvements and fixes included in these updates, see Microsoft documentation for KB5093421. We recommend that you upgrade your Amazon RDS for SQL Server instances to apply these updates using Amazon RDS Management Console, or by using the AWS SDK or CLI. You can learn more about upgrading your database instance in the Amazon RDS SQL Server User Guide for upgrading your RDS Microsoft SQL Server DB engine.