Unity 6.6 End of Life Date
Unity 6.6 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
Unity 6000.6 was released on August 31, 2026 and has no published end-of-life date yet. It is not an LTS release; Unity reserves longer patch windows for its LTS versions. Its most recent patch is 6000.6.0f1, published August 31, 2026.
| Version | Latest | EOL Date | Status |
|---|---|---|---|
| 2017 LTS | 2017.4.40f1 | May 18, 2020 | EOL |
| 2018 LTS | 2018.4.36f1 | Jun 17, 2021 | EOL |
| 2019 LTS | 2019.4.41f2 | Jun 16, 2022 | EOL |
| 2020 LTS | 2020.3.49f1 | May 5, 2023 | EOL |
| 2021.1 | 2021.1.29f1 | Nov 4, 2022 | EOL |
| 2021.2 | 2021.2.20f1 | Apr 5, 2022 | EOL |
| 2021.3 | 2021.3.45f2 | Feb 18, 2025 | EOL |
| 2021 LTS | 2021.3.45f2 | Feb 18, 2025 | EOL |
What does Unity 6.6 end of life mean?
When Unity 6.6 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Unity 6.6 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Unity 6.6 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.