Your .NET 8/9 Apps Are Unsupported: .NET 11 Upgrade Checklist
.NET 8 and 9 hit end of support on November 10, 2026. .NET 11 (STS, C# 15 unions, Native AOT CLI host) is out. Here is what to adopt and what is still preview.
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.NET 8 and 9 hit end of support on November 10, 2026. .NET 11 (STS, C# 15 unions, Native AOT CLI host) is out. Here is what to adopt and what is still preview.