Azul Zulu 21 End of Life Date
Azul Zulu 21 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
Azul Zulu 21 was released on September 19, 2023 and support is scheduled to end on September 30, 2031 — a planned supported lifespan of 8 years, in line with the 8 years and 1 month median for Azul Zulu LTS releases. It is a long-term support (LTS) release, so it carries a longer patch window than the interim releases around it. Its most recent patch is 21.48.17, published January 30, 2026.
| Version | Latest | EOL Date | Status |
|---|---|---|---|
| 7 LTS | 7.56 | Jul 31, 2022 | EOL |
| 6 LTS | N/A | Dec 31, 2018 | EOL |
| 8 LTS | 8.92.0.21 | Dec 31, 2030 | Active |
| 9 (<abbr title='Short Term Support'>STS</abbr>) | 9.0.7.1 | Mar 31, 2018 | EOL |
| 10 (<abbr title='Short Term Support'>STS</abbr>) | 10.3.5 | Sep 30, 2018 | EOL |
| 11 LTS | 11.86.21 | Jan 31, 2032 | Active |
| 12 (<abbr title='Short Term Support'>STS</abbr>) | 12.3.11 | Sep 30, 2019 | EOL |
| 13 (<abbr title='Medium-Term Support'>MTS</abbr>) | 13.54.17 | Mar 31, 2023 | EOL |
What does Azul Zulu 21 end of life mean?
When Azul Zulu 21 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 Azul Zulu 21 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Azul Zulu 25 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.