March 2024

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Several customers reported an issue after installing SharePoint Server Subscription Edition March 2024 CU which includes the 24H1 Feature Update: Exception type: FileNotFoundException Exception message: Could not load file or assembly ‘Microsoft.Owin, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ or one of its dependencies. The system cannot find the file specified. at Microsoft.Owin.Host.SystemWeb.OwinAppContext.Initialize(Action1 startup) at Microsoft.Owin.Host.SystemWeb.OwinBuilder.Build(Action1 startup) at Microsoft.Owin.Host.SystemWeb.OwinHttpModule.InitializeBlueprint() […]

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With November 2023 cumulative update for SharePoint Server Server the following Content-Security-Policy header was included in the response of http requests: Content-Security-Policy: frame-ancestors ‘self’ teams.microsoft.com *.teams.microsoft.com *.skype.com *.teams.microsoft.us local.teams.office.com *.powerapps.com *.yammer.com *.officeapps.live.com *.office.com *.stream.azure-test.net *.microsoftstream.com *.dynamics.com *.microsoft.com onedrive.live.com *.onedrive.live.com; This change causes problems for some customers which already have their own Content-Security-Policy response header in […]

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Below are the security fixes for the SharePoint OnPrem versions released this month. SharePoint Server 2016: KB 5002559 – SharePoint Server 2016 (language independent) Microsoft Support recommends to install the complete March 2024 CU for SharePoint 2016 rather than individual security fixes. SharePoint Server 2019: KB 5002562 – SharePoint Server 2019 (language independent) Microsoft Support […]

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The product group released the March 2024 Cumulative Update for SharePoint Server Subscription Edition. Monthly SharePoint Server Subscription edition updates are released as a single unified “uber” package containing both the language independent and language dependent fixes. Language independent and language dependent fixes will no longer be released separately. This is similar to the full […]

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When comparing the installation time for CUs for SharePoint Server 2019 and SharePoint Server Subscription Edition there is a significant difference. E.g. on my test machines installing a SharePoint Server 2019 fix takes roughly 20 minutes compared to nearly an hour for a similar SharePoint Server Subscription Edition fix. The reason for this extended install […]