New feature

Amazon RDS now supports the latest CU for Microsoft SQL Server

Amazon RDS adds support for the latest Microsoft SQL Server cumulative updates, enabling instance upgrades

Amazon RDS for SQL Server now includes the latest Microsoft SQL Server cumulative updates, specifically version 2025 CU6 (KB5093421, RDS version 17.00.4055.5.v1). Users can apply these updates via the Amazon RDS Management Console, AWS SDK, or CLI. For details on changes and fixes, see Microsoft's KB5093421 documentation.

Why it matters

This update affects users running Microsoft SQL Server on Amazon RDS, allowing them to apply the latest engine patches for security and performance improvements

Read the original AWS announcement