On October 8, 2019, Microsoft released SQL Server 2017 CU17, which is Build 14.0.3238.1. There are 34 public hot fixes in the cumulative update. Starting with SQL Server 2017, Microsoft is not using Service Packs as a servicing mechanism for SQL Server, only Cumulative Updates.

Microsoft has fixed hundreds of bugs since SQL Server 2017 RTM, and they have also added a significant number of product improvements and new features since the RTM release. I’ve already updated my blog post that highlights the more important hotfixes (in my opinion) for each SQL Server 2017 CU that has been released.

Performance and Stability Fixes in SQL Server 2017 CU Builds

You really are better off trying to stay as current as possible on your SQL Server builds. I still believe this despite some recent problems Microsoft has had with SQL Server Cumulative Updates.

Here is Microsoft’s official guidance:

Microsoft recommends ongoing, proactive installation of CUs as they become available

  • SQL Server CUs are certified to the same levels as Service Packs, and should be installed at the same level of confidence.
  • 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.