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  Title Products Classification Last Updated Version Size          Download
2026-09 Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 for x64 (KB5126051) Windows Server 2012 R2 Security Updates 9/8/2026 n/a 59.0 MB 61833797
2026-09 Cumulative Update for .NET Framework 3.5 and 4.8 for Microsoft server operating system version 21H2 for x64 (KB5126050) Microsoft Server operating system-21H2 Security Updates 9/8/2026 n/a 76.3 MB 79976473
2026-09 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 22H2 (KB5126046) Windows 10, version 1903 and later Security Updates 9/8/2026 n/a 49.5 MB 51908551
2026-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5126422) Microsoft Server operating system-21H2 Security Updates 9/8/2026 n/a 76.2 MB 79944499
2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5126145) Windows 10 LTSB Security Updates 9/8/2026 n/a 155.5 MB 163090294
2026-09 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1607 (KB5126047) Windows 10, Windows 10 LTSB Security Updates 9/8/2026 n/a 34.6 MB 36316264
2026-09 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows Server 2019 for x64 (KB5126043) Windows Server 2019 Security Updates 9/8/2026 n/a 87.2 MB 91487875
2026-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2 for arm64 (KB5126052) Windows 11 Security Updates 9/8/2026 n/a 110.6 MB 115959073
2026-09 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10 Version 1809 for x64 (KB5126043) Windows 10, Windows 10 LTSB Security Updates 9/8/2026 n/a 87.2 MB 91487875
2026-08 .NET Framework 3.5 Security Update (KB5120747) UUP .NET Framework 3.5 Security Updates 8/11/2026 n/a 100.5 MB 105341392
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2019 for x64 (KB5120703) Windows Server 2019 Security Updates 8/11/2026 n/a 91.3 MB 95697550
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 (KB5120701) Windows 10 LTSB Security Updates 8/11/2026 n/a 49.5 MB 51910852
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2 for arm64 (KB5120713) Windows 11 Security Updates 8/11/2026 n/a 93.1 MB 97620196
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 22H2 for ARM64 (KB5121647) Windows 10, version 1903 and later Security Updates 8/11/2026 n/a 49.5 MB 51911634
2026-08 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 for x64 (KB5120708) Windows 11 Security Updates 8/11/2026 n/a 92.3 MB 96744203
2026-07 .NET Framework 3.5 Security Update (KB5101014) UUP .NET Framework 3.5 Security Updates 7/14/2026 n/a 100.5 MB 105330664
2026-07 Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 for x64 (KB5101009) Windows Server 2012 Security Updates 7/14/2026 n/a 46.3 MB 48524437
2026-05 .NET Framework 3.5 Security Update (KB5087077) UUP .NET Framework 3.5 Security Updates 5/12/2026 n/a 100.4 MB 105310344
2026-05 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1607 for x64 (KB5087065) Windows 10, Windows 10 LTSB Security Updates 5/12/2026 n/a 60.9 MB 63874203
2026-05 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 22H2 for ARM64 (KB5087064) Windows 10, version 1903 and later Security Updates 5/12/2026 n/a 47.7 MB 50008838
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 and 4.8.1 for Windows 11, version 24H2 for x64 (KB5087054) Windows 11 Security Updates 5/12/2026 n/a 73.6 MB 77194133
2026-04 Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 for x64 (KB5084070) Windows Server 2012 R2 Security Updates 4/14/2026 n/a 143.2 MB 150181032
2026-04 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows Server 2019 for x64 (KB5084066) Windows Server 2019 Security Updates 4/14/2026 n/a 173.1 MB 181547828
2026-04 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 22H2 (KB5082419) Windows 10, version 1903 and later Security Updates 4/14/2026 n/a 47.2 MB 49526307
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