Amazon RDS Updates to Support Microsoft SQL Server 2025 CU6

Amazon RDS incorporated support for the latest cumulative update CU6 for Microsoft SQL Server 2025, enhancing security and stability for hosted instances.

By Maya Bennett · Editorial pseudonym · 2026-08-26 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-08-26. Source published: 2026-08-25. Added to this archive: 2026-11-03. This briefing was prepared later from the linked announcement; it was not published on this website on the historical edition date.

In late August 2026, Amazon Relational Database Service (RDS) expanded its managed offerings for Microsoft SQL Server by supporting the cumulative update CU6 (KB5093421) for SQL Server 2025 (RDS version 17.00.4055.5.v1). This update includes improvements and fixes from Microsoft designed to maintain database security and performance.

AWS recommends upgrading existing RDS SQL Server instances using its management tools or SDKs, following guidance linked to Microsoft’s update documentation. The update process integrates with Amazon’s services but the source does not report independent validation of performance or reliability impacts post-update.

Source & further reading

Amazon RDS now supports the latest CU for Microsoft SQL Server ↗

Source published 2026-08-25. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.