Cumulative Update #4 for SQL Server 2017 RTM
The 4th cumulative update release for SQL Server 2017 RTM is now available for download at the Microsoft Downloads site. Please note that registration is no longer required to download Cumulative updates.
To learn more about the release or servicing model, please visit:
- CU4 KB Article: https://support.microsoft.com/en-us/help/4056498
Starting with SQL Server 2017, we are adopting a new modern servicing model. Please refer to our blog for more details on Modern Servicing Model for SQL Server
- Microsoft® SQL Server® 2017 RTM Latest Cumulative Update: https://www.microsoft.com/download/details.aspx?id=56128
- Update Center for Microsoft SQL Server: https://technet.microsoft.com/en-US/sqlserver/ff803383.aspx
We have recently found an issue where if you are using Query Store feature with SQL Server 2017 CU2, and later upgrade to SQL Server 2017 CU3 (or higher when available), an attempt to use the stored showplan fails. This includes the ability to force a specific plan captured by Query Store while SQL Server 2017 CU2 (14.0.3008.27) was installed, while already running with CU3 (14.0.3015.40).
As such, to assist DBAs in removing any of the affected plans collected while SQL Server 2017 CU2 was installed, we have created this T-SQL script to remove only the affected plans in Query Store. Execute it immediately after installing SQL Server 2017 CU3 or above.
The respective KB articles for SQL Server 2017 CU2 and CU3 will be updated to reflect this recommendation.
Note: any query plans captured by Query Store in versions prior to 14.0.3008.27 are not affected. Only plans captured in 14.0.3008.27.
Note2: While Query Store is also available in SQL Server 2016, this version is not affected in any build.