Microsoft is updating its author-signing certificate starting September 23, 2026
Ignore.NET Blog · 2026-09-23 20:00 UTC .NET
AI Summary
Microsoft is updating the author-signing certificate for its NuGet packages starting September 23, 2026. Users who enforce trusted signer policies or certificate fingerprint verification are advised to add the new certificate.
AI analysis by Gemini
Why should I care?
If you manage .NET projects using strict NuGet package signing or fingerprint verification policies, you will need to register this new certificate before the 2026 changeover.
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Content
Starting September 23, 2026, Microsoft is updating the author-signing certificate used for NuGet packages. Customers using trusted signer policies or certificate fingerprint verification should add the new certificate as soon as possible. The post Microsoft is updating its author-signing certificate starting September 23, 2026 appeared first on .NET Blog .