Updates for SharePoint Server Subscription Edition (April 2024 CU)

14 April 2024    |    Comments   Comments: 0

A new cumulative update (April 2024 CU) has been released for SharePoint Server Subscription Edition.

SP Build:
16.0.17328.20246

Starting with the March 2023 CU, updates for SharePoint Server Subscription Edition are released as a single package (known as an Uber package) containing both language-independent and language-dependent fixes. Only one package needs to be installed to fully update the server.

SharePoint Subscription Edition CU – KB articles describing the CU:

  • KB 5002581 – April 2024 Update for SharePoint Server Subscription Edition

SharePoint Server Subscription Edition CU – CU download links:

After installation, remember to run the SharePoint Products Configuration Wizard or the following command:

PSConfig.exe -cmd upgrade -inplace b2b -wait -cmd applicationcontent -install -cmd installfeatures -cmd secureresources -cmd services -install

Important notes

To speed up CU installation, I recommend following the guidance in How to speed up CU installation in SharePoint Server Subscription Edition.

The language you select when downloading the update does not matter because the same package is downloaded for every language.

Note for this CU:

Installing this update requires the release version of SharePoint Server Subscription Edition.

Included fixes and improvements

The following overview summarizes the fixes and improvements in this CU based on the official Microsoft KB articles.

SharePoint Server Subscription Edition

This CU addresses a spoofing vulnerability: CVE-2024-26251.

The unified update in KB 5002581 includes these SharePoint Server Subscription Edition changes:

  • Fixes an issue where repeated SharePoint upgrades add duplicate elements to Web.config, eventually exceeding the IIS file size limit and producing HTTP 500.19 - Cannot read configuration file because it exceeds the maximum file size. The fix removes existing duplicates and prevents new ones.

  • Fixes an issue where the list web part shows only the last property across user columns configured to display different properties.

  • Fixes an issue where a document library rejects uploading a new file with an existing name.

  • Fixes an unexpected exception in the aggregated newsfeed feature.

  • Changes Kazakhstan’s capital name from Nur-Sultan to Astana.

  • Improves the reliability of AMSI integration.

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