October 28, 2026 — KB5127936 (OS Builds 26300.9818 and 26200.9818) Preview

October 28, 2026 — KB5127936 OS Builds 26300.9818 and 26200.9818 Preview Applies To Windows 11 version 26H2, all editions Windows 11 version 25H2, all editions This cumulative update for Windows 11, versions 26H2 and 25H2 KB5127936, includes production-quality improvements. Announcements and...

October 26, 2026—KB5134133 (OS Builds 26300.9725, 26200.9725 and 26100.9725) Out-of-band

October 26, 2026—KB5134133 OS Builds 26300.9725, 26200.9725 and 26100.9725 Out-of-band Applies To Windows 11 version 26H2, all editions Windows 11 version 25H2, all editions Windows 11 version 24H2, all editions This non-security out-of-band OOB update for Windows 11, versions 24H2, 25H2, and 26H...

October 13, 2026-KB5127694 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11 26H2

October 13, 2026-KB5127694 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11 26H2 Applies To .NET Note Release date: October 13, 2026 Version: .NET Framework 3.5 and 4.8.1 The October 13, 2026 update for Windows 11 26H2 includes security and cumulative reliability improvements in...

September 22, 2026—KB5124010 (OS Builds 26300.9550, 26200.9550, and 26100.9550) Preview

September 22, 2026—KB5124010 OS Builds 26300.9550, 26200.9550, and 26100.9550 Preview Applies To Windows 11 version 26H2, all editions Windows 11 version 25H2, all editions Windows 11 version 24H2, all editions This cumulative update for Windows 11, versions 26H2, 25H2, and 24H2 KB5124010, includ...

MINI-26H2-8QJ7-34VH

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MINI-Q8CR-26H2-9MVF

Bulletin has no description...

2026-09 Cumulative Update Preview for Windows 11, version 26H2 for arm64-based Systems (KB5124010) (26300.9550)

2026-09 Cumulative Update Preview for Windows 11, version 26H2 for arm64-based Systems KB5124010 26300.9550...

2026-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for x64 (KB5126052)

2026-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for x64 KB5126052...

2026-10 Cumulative Update for Windows 11, version 26H2 for x64-based Systems (KB5127648) (26300.9711)

2026-10 Cumulative Update for Windows 11, version 26H2 for x64-based Systems KB5127648 26300.9711...

2026-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for x64 (KB5127694)

2026-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for x64 KB5127694...

2026-09 Cumulative Update for Windows 11, version 26H2 for arm64-based Systems (KB5124008) (26300.9445)

2026-09 Cumulative Update for Windows 11, version 26H2 for arm64-based Systems KB5124008 26300.9445...

2026-09 Cumulative Update for Windows 11, version 26H2 for x64-based Systems (KB5129195) (26300.9457)

2026-09 Cumulative Update for Windows 11, version 26H2 for x64-based Systems KB5129195 26300.9457...

2026-08 Cumulative Update Preview for Windows 11, version 26H2 for x64-based Systems (KB5120998) (26300.9278)

2026-08 Cumulative Update Preview for Windows 11, version 26H2 for x64-based Systems KB5120998 26300.9278...

2026-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for arm64 (KB5127694)

2026-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for arm64 KB5127694...

2026-09 Cumulative Update Preview for Windows 11, version 26H2 for x64-based Systems (KB5124010) (26300.9550)

2026-09 Cumulative Update Preview for Windows 11, version 26H2 for x64-based Systems KB5124010 26300.9550...

2026-09 Cumulative Update for Windows 11, version 26H2 for x64-based Systems (KB5124008) (26300.9445)

2026-09 Cumulative Update for Windows 11, version 26H2 for x64-based Systems KB5124008 26300.9445...

2026-08 Cumulative Update Preview for Windows 11, version 26H2 for arm64-based Systems (KB5120998) (26300.9278)

2026-08 Cumulative Update Preview for Windows 11, version 26H2 for arm64-based Systems KB5120998 26300.9278...

2026-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for arm64 (KB5126052)

2026-09 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for arm64 KB5126052...

2026-10 Cumulative Update for Windows 11, version 26H2 for x64-based Systems (KB5127648) (26300.9711)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information. After you install this item, you may have to restart your computer...

2026-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 26H2 for arm64 (KB5127694)

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...