Amazon RDS Custom Adds Support for Latest Microsoft SQL Server Cumulative Update 26

Amazon RDS Custom for SQL Server was updated to support Microsoft SQL Server 2022 Cumulative Update 26, incorporating Microsoft-recommended fixes and improvements.

By Daniel Brooks · Editorial pseudonym · 2026-09-23 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-09-23. Source published: 2026-09-22. 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.

With this update, users of Amazon RDS Custom can upgrade their SQL Server instances to version 16.00.4265.3.v1, reflecting the CU26 (KB5093420) release from Microsoft. The update includes various fixes and enhancements documented by Microsoft in the KB5093420 knowledge base article.

Upgrades can be performed through the AWS Management Console, SDK, or CLI. Adopting these cumulative updates helps maintain database security, stability, and performance in Amazon's managed environment.

Source & further reading

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

Source published 2026-09-22. 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.