The product group released the September 2021 Cumulative Update for SharePoint Server 2019 product family. SharePoint Server 2019 is patched with a language dependent and a language independent fix.
The KB article for September 2021 CU will be available at the following Location in a couple of hours:
- KB 5002018 – September 2021 Update for SharePoint Server 2019 (language independent) – This is also a security update!
- KB 5002019 – September 2021 Update for SharePoint Server 2019 (language dependent)
The download for September 2021 CU is available through the following link:
- Download September 2021 Update for SharePoint Server 2019 (language independent) – This is also a security update!
- Download September 2021 Update for SharePoint Server 2019 (language dependent)
Important: It is required to install both fixes (language dependent and independent) to fully patch a SharePoint server. This applies also to servers which do not have language packs installed. The reason is that each SharePoint installation includes a language dependent component together with a language independent component. If additional language packs are added later (only) the language dependent fix has to be applied again.
It is irrelevant which language you pick on the drop down in download center. Even the language dependent fixes are all in the same package for all languages.
After installing the fixes you need to run the SharePoint 2019 Products Configuration Wizard on each machine in the farm. If you prefer to run the command line version psconfig.exe ensure to have a look here for the correct options.
Please ensure to have a look at the SharePoint Patching Best Practices before applying new fixes.
SharePoint 2019 September 2021 CU Build Number:
Language independent fix: 16.0.10378.20002
Language dependent fix: 16.0.10378.20002
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