July 14, 2026-KB5100998 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 and Microsoft server operating system 24H2

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October 14, 2025-KB5066131 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2 and Microsoft server operating system version 24H2

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2026-01 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5077793) (26100.32234)

2026-01 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems KB5077793 26100.32234...

2026-05 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for x64 (KB5087051)

2026-05 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for x64 KB5087051...

2026-08 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for x64 (KB5120708)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...

2026-04 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for x64 (KB5082417)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...