.NET end of life: end of support by version
Microsoft · Development & DevOps
For .NET by Microsoft, patchletter knows 13 support cycles. 10 of them have already ended and receive no more security updates. The next support window closes on 10/11/2026, that is in 66 days. The current version of .NET is 10.0.11. The cycles come from the open endoflife.date project, last reconciled on 04/09/2026.
When does support end for which .NET version?
A cycle is a maintained version line. Where a date is given, support ends on that day — after it the vendor ships no more security updates for that line.
| Cycle | Latest version | End of support | Status |
|---|---|---|---|
| 10LTS | 10.0.11 | 801 days left | EOL 14 Nov 28 |
| 9 | 9.0.19 | 66 days left | EOL in 66 days |
| 8LTS | 8.0.30 | 66 days left | EOL in 66 days |
| 7 | 7.0.20 | 844 days ago | End of Life |
| 6LTS | 6.0.36 | 662 days ago | End of Life |
| 5 | 5.0.17 | 1579 days ago | End of Life |
| 3.1LTS | 3.1.32 | 1362 days ago | End of Life |
| 3.0 | 3.0.3 | 2377 days ago | End of Life |
| 2.2 | 2.2.8 | 2448 days ago | End of Life |
| 2.1LTS | 2.1.30 | 1841 days ago | End of Life |
| 2.0 | 2.0.9 | 2896 days ago | End of Life |
| 1.1 | 1.1.13 | 2627 days ago | End of Life |
| 1.0LTS | 1.0.16 | 2627 days ago | End of Life |
Which .NET versions no longer receive security updates?
10 of 13 cycles have ended. If you run one of those lines, the vendor ships you no more patches — not even for critical flaws.
- .NET 77.0.20
- .NET 66.0.36
- .NET 55.0.17
- .NET 3.13.1.32
- .NET 3.03.0.3
- .NET 2.22.2.8
- .NET 2.12.1.30
- .NET 2.02.0.9
- .NET 1.11.1.13
- .NET 1.01.0.16
Where does the EOL data for .NET come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the .NET data is as of 04/09/2026. In case of doubt the vendor's own lifecycle page applies — patchletter deliberately stores no vendor full texts.
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