This article describes Cumulative Update package 13 (CU13) for SQL Server 2017. This update contains fixes that were released after the initial release of SQL Server 2017 and updates the SQL Server and Analysis services components to the following builds:
|Component||Build version||File version|
This article also provides important information about the following situations:
- A behavior change in distributions that use the latest available version of Pacemaker.
- A required script if you use Query Store and you have previously installed SQL Server 2017 Cumulative Update 2 (CU2).
Beginning in SQL Server 2017, the Analysis Services build version number and SQL Server Database Engine build version number do not match. For more information, see Verify Analysis Services cumulative update build version.
Cumulative updates (CU) are now available at the Microsoft Download Center.
Only the most recent CU that was released for SQL Server 2017 is available at the Download Center.
CU packages for Linux are available at https://packages.microsoft.com/.
- Each new CU contains all the fixes that were included with the previous CU for the installed version of SQL Server.
- SQL Server CUs are certified to the same levels as Service Packs, and should be installed at the same level of confidence.
- Microsoft recommends ongoing, proactive installation of CUs as they become available according to these guidelines:
- Historical data shows that a significant number of support cases involve an issue that has already been addressed in a released CU.
- CUs may contain added value over and above hotfixes. This includes supportability, manageability, and reliability updates.
- We recommend that you test CUs before you deploy them to production environments.
How to obtain this cumulative update package for Windows
SQL Server 2017 CU13 regression for Analysis Services (only)
The Analysis Services component of the SQL Server 2017 CU13 hotfix patch can cause certain DAX queries to fail with error: An unexpected exception occurred.
This error can occur in queries using the TREATAS function, common in Power BI generated DAX queries. It is recommended you do not install the SQL Server 2017 CU13 hotfix on computers with Analysis Services instances when Power BI Desktop or Power BI Service is a client querying that server instance.
A fix for this issue will ship in the next SQL Server 2017 Cumulative Update.
The following update is available from the Microsoft Download Center:
If the download page does not appear, contact Microsoft Customer Service and Support to obtain the cumulative update package.
- After future cumulative updates are released for SQL Server 2017, this and all previous CUs can be downloaded from the Microsoft Update Catalog. However, we recommend that you always install the latest cumulative update that is available.
- CU13 for SQL Server 2017 is intentionally released per the following schedule:
- Microsoft Download Center: December 18, 2018
- Microsoft Update Catalog: January 3, 2019
How to obtain this cumulative update package for Linux
Additional hotfixes that are included in this cumulative update package
Notes for this update
Hybrid environments deployment
- SQL Server failover cluster rolling update and service pack process
Note If you do not want to use the rolling update process, follow these steps to apply an update:
- Install the update on the passive node.
- Install the update on the active node (requires a service restart).
- Upgrade and update of availability group servers that use minimal downtime and data loss
Note If you enabled AlwaysOn with SSISDB catalog, see the information about SSIS with AlwaysOn for more information about how to apply an update in these environments.
- How to apply a hotfix for SQL Server in a transactional replication and database mirroring topology
- How to apply a hotfix for SQL Server in a replication topology
- How to install service packs and hotfixes on an instance of SQL Server that is configured to use database mirroring
- Overview of SQL Server Servicing Installation
Cumulative update package information
To apply this cumulative update package, you must be running SQL Server 2017.
You may have to restart the computer after you apply this cumulative update package.
To use one of the hotfixes in this package, you do not have to make any changes to the registry.