.NET End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all .NET versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 1.0 | 1.0.16 | Jun 27, 2016 | Jun 27, 2019 | 2553 days past EOL | EOL |
| 1.1 | 1.1.13 | Nov 16, 2016 | Jun 27, 2019 | 2553 days past EOL | EOL |
| 2.0 | 2.0.9 | Aug 14, 2017 | Oct 1, 2018 | 2822 days past EOL | EOL |
| 2.1 LTS | 2.1.30 | May 30, 2018 | Aug 21, 2021 | 1767 days past EOL | EOL |
| 2.2 | 2.2.8 | Dec 4, 2018 | Dec 23, 2019 | 2374 days past EOL | EOL |
| 3.0 | 3.0.3 | Sep 23, 2019 | Mar 3, 2020 | 2303 days past EOL | EOL |
| 3.1 LTS | 3.1.32 | Dec 3, 2019 | Dec 13, 2022 | 1288 days past EOL | EOL |
| 5 | 5.0.17 | Nov 10, 2020 | May 10, 2022 | 1505 days past EOL | EOL |
| 6 LTS | 6.0.36 | Nov 8, 2021 | Nov 12, 2024 | 588 days past EOL | EOL |
| 7 | 7.0.20 | Nov 8, 2022 | May 14, 2024 | 770 days past EOL | EOL |
| 8 LTS | 8.0.28 | Nov 14, 2023 | Nov 10, 2026 | 140 days remaining | Warning |
| 9 | 9.0.17 | Nov 12, 2024 | Nov 10, 2026 | 140 days remaining | Warning |
| 10 LTS | 10.0.9 | Nov 11, 2025 | Nov 14, 2028 | 875 days remaining | Active |
What does .NET end of life mean for your organization?
When a version of .NET reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL .NET should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL .NET versions. This is a bridge, not a permanent solution — plan your migration in parallel.
We work with vetted extended support vendors. Tell us what you need and we'll connect you with the right provider.
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