Windows 11 · 26H1 · .NET Framework update
.NET Framework Preview Update for Windows 11 - KB5122386 (28000.9345)
- Release
- .NET Framework update
- KB5122386 — Microsoft's article, opens in a new tab
- amd64
- arm64
Windows 11 26H1: Ships on new silicon only
This is a .NET Framework package for Windows 11 26H1, not an operating-system build. Its history below lists other .NET packages on the 28000 base.
AI summary
This Insider Preview .NET Framework update delivers experimental runtime, compatibility, and stability refinements for Windows 11 26H1, without introducing major user-interface changes.
Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.
Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 28000.9345 or KB5122386 and describe a fault appear here automatically.
In the news
- Fix KB5120996 Brings Windows 11 26H1 Start and Power Fixes
- Coverage KB5121000 Raises Windows 11 26H1 to Build 28000.2704
- Coverage KB5120999 Updates Windows 11 26H1 WinRE to 10.0.28000.2703
- Coverage Windows 11 26H2 Skips 26H1 PCs but Updates 24H2/25H2
- Coverage KB5123778 Refreshes Qualcomm QNN Runtime for Windows 11 26H1
- Coverage KB5124890 Updates Qualcomm Phi Silica J32 on Windows 11 26H1
- Coverage KB5124886 Updates Qualcomm Copilot+ Image Processing for 26H1
Discussed on the forum
No member thread names 28000.9345 yet.