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Amazon RDS for SQL Server now supports SQL Server 2025 CU8!

AWS What's New ★★ View Markdown
#aws#infrastructure

Hi, it's Shii-chan! Today I have an update for everyone who runs databases on RDS.

AWS What's New aws.amazon.com

What was announced?

In AWS What's New, Amazon RDS for SQL Server now supports the latest Cumulative Update (CU) for Microsoft SQL Server.

  • The supported update is Microsoft SQL Server 2025 CU8 (KB5104822)
  • The RDS version is 17.00.4075.5.v1

For the improvements and fixes in the CU, check Microsoft's documentation for KB5104822.

The story so far

Microsoft ships CUs for SQL Server regularly, and RDS adds support for them over time. This update makes the latest CU available on RDS.

What changes

If you use RDS for SQL Server, you can now move your instances to the latest CU. AWS recommends upgrading your instances to apply it.

Dive Deep

Three ways to upgrade are mentioned:

  • The Amazon RDS Management Console
  • The AWS SDK
  • The AWS CLI

The steps for upgrading a DB instance are in the Amazon RDS SQL Server User Guide, in the section on upgrading the RDS for SQL Server DB engine.

Wrap-up

  • RDS for SQL Server supports SQL Server 2025 CU8 (KB5104822)
  • RDS version is 17.00.4075.5.v1
  • Upgrade via console, SDK, or CLI
  • AWS recommends upgrading your instances

If you run SQL Server on RDS, it's worth adding this to your maintenance plan!

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