.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 20 days. The current version of .NET is 10.0.13. 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 | 755 days left | EOL 14 Nov 28 |
| 9 | 9.0.19 | 20 days left | EOL in 20 days |
| 8LTS | 8.0.30 | 20 days left | EOL in 20 days |
| 7 | 7.0.20 | 890 days ago | End of Life |
| 6LTS | 6.0.36 | 708 days ago | End of Life |
| 5 | 5.0.17 | 1625 days ago | End of Life |
| 3.1LTS | 3.1.32 | 1408 days ago | End of Life |
| 3.0 | 3.0.3 | 2423 days ago | End of Life |
| 2.2 | 2.2.8 | 2494 days ago | End of Life |
| 2.1LTS | 2.1.30 | 1887 days ago | End of Life |
| 2.0 | 2.0.9 | 2942 days ago | End of Life |
| 1.1 | 1.1.13 | 2673 days ago | End of Life |
| 1.0LTS | 1.0.16 | 2673 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.
New .NET versions by email
Tick the product and patchletter reports new releases by email. The update email costs nothing, and one click stops it again. The warning 90, 30 and 7 days before support ends is part of patchletter Pro.