Title Products Classification Last Updated Version Size          Download
2026-05 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5087541) Microsoft Server Operating System-23H2 Security Updates 5/12/2026 n/a 239.0 MB 250630499
2026-05 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5087539) (26100.32860) Microsoft Server Operating System-24H2 Security Updates 5/12/2026 n/a 2439.0 MB 2557474023
2026-05 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system, version 23H2 for x64 (KB5087052) Microsoft Server Operating System-23H2 Security Updates 5/12/2026 n/a 73.6 MB 77187400
2026-05 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5087059) Microsoft Server operating system-21H2 Security Updates 5/12/2026 n/a 74.5 MB 78123122
2026-05 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for arm64 (KB5087051) Microsoft Server Operating System-24H2 Security Updates 5/12/2026 n/a 109.9 MB 115203439
2026-05 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5088862) Microsoft Server operating system-21H2 Security Updates 5/12/2026 n/a 149.1 MB 156378567
2026-05 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for x64 (KB5087051) Microsoft Server Operating System-24H2 Security Updates 5/12/2026 n/a 91.8 MB 96302586
2026-05 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5087068) Microsoft Server operating system-21H2 Security Updates 5/12/2026 n/a 74.6 MB 78255445
2026-05 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5087545) Microsoft Server operating system-21H2 Security Updates 5/12/2026 n/a 539.4 MB 565567533
2026-04 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5091571) Microsoft Server Operating System-23H2 Updates 4/19/2026 n/a 238.5 MB 250137112
2026-04 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5091157) (26100.32698) Microsoft Server Operating System-24H2 Updates 4/19/2026 n/a 2232.0 MB 2340415577
2026-04 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5091575) Microsoft Server operating system-21H2 Updates 4/19/2026 n/a 516.2 MB 541269806
2026-04 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5082063) (26100.32690) Microsoft Server Operating System-24H2 Security Updates 4/14/2026 n/a 1996.8 MB 2093748948
2026-04 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5082060) Microsoft Server Operating System-23H2 Security Updates 4/14/2026 n/a 238.5 MB 250130108
2026-04 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5082425) Microsoft Server operating system-21H2 Security Updates 4/14/2026 n/a 74.5 MB 78129614
2026-04 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5082427) Microsoft Server operating system-21H2 Security Updates 4/14/2026 n/a 74.6 MB 78230710
2026-04 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5084071) Microsoft Server operating system-21H2 Security Updates 4/14/2026 n/a 149.1 MB 156360324
2026-04 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for arm64 (KB5082417) Microsoft Server Operating System-24H2 Security Updates 4/14/2026 n/a 110.0 MB 115303927
2026-04 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system, version 23H2 for x64 (KB5082418) Microsoft Server Operating System-23H2 Security Updates 4/14/2026 n/a 73.6 MB 77184944
2026-04 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 24H2 for x64 (KB5082417) Microsoft Server Operating System-24H2 Security Updates 4/14/2026 n/a 91.9 MB 96414357
2026-04 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5082142) Microsoft Server operating system-21H2 Security Updates 4/14/2026 n/a 515.8 MB 540859310
2026-03 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5078734) Microsoft Server Operating System-23H2 Security Updates 3/10/2026 n/a 208.4 MB 218533350
2026-03 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5078740) (26100.32522) Microsoft Server Operating System-24H2 Security Updates 3/10/2026 n/a 1948.2 MB 2042866984
2026-03 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5078766) Microsoft Server operating system-21H2 Security Updates 3/10/2026 n/a 499.4 MB 523660670
2026-02 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5082314) Microsoft Server operating system-21H2 Updates 3/2/2026 n/a 413.0 MB 433051920
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