Microsoft .NET Framework Update Version KB5122386; KB5122385
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Update Summary
August 27, 2026 cumulative update preview for .NET Framework 3.5 and 4.8.1. It contains no new security improvements and fixes intermittent 64-bit .NET Framework crashes in .NET Runtime. Reference IDs: KB5122386, KB5122385.
Update Details
Bug Fixes
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Hints
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Product Information
Vendor: Microsoft
Product: .NET Framework
Product type: Other
Platform: Windows
Version: KB5122386; KB5122385
Vendor information published: Aug 27, 2026
Original release notes: View on vendor site
Published on updatealert.io: Aug 29, 2026
Description: Developer runtime and framework for building and running Windows applications.