.NET 8 and .NET 9: end of life on 10 November 2026
Security support for end-of-life .NET
Microsoft stops fixing .NET 8 and .NET 9 on 10 November 2026. .NET 6 and .NET 7 are already past end of life. We keep backporting security fixes to the runtime, ASP.NET Core and the SDK of the version you run.
Request a server assessment.NET versions and their end of life
| .NET | Type | Support | Last release | Security fixes | Exploited | Forkward |
|---|---|---|---|---|---|---|
| .NET 9 | STS | ends 10 November 2026 | 9.0.21 | 65 | 1 | Patch on order, 48 h |
| .NET 8 | LTS | ends 10 November 2026 | 8.0.32 | 83 | 1 | Patch on order, 48 h |
| .NET 7 | STS | ended 14 May 2024 | 7.0.20 | 36 | 2 | Patch on order, 48 h |
| .NET 6 | LTS | ended 12 November 2024 | 6.0.36 | 45 | 2 | Patch on order, 48 h |
Security fixes: vulnerabilities in .NET and ASP.NET Core that Microsoft fixed in each version while it was supported, from the US National Vulnerability Database, 28 October 2026. Exploited: listed in the CISA catalogue of known exploited vulnerabilities. End-of-life dates from Microsoft.
Why it matters
Microsoft fixed 83 vulnerabilities in .NET 8, 51 of them in 2026 alone. After end of life the flaws keep coming, but the fixes stop. .NET 8 end of life
Patch on order, 48 h
We backport the fix to the version you run within 48 hours of your order, or within 24 hours with priority delivery. See the plans