Lua 2.1 · Version Status
Lua 2.1 End of Life Date
Lua 2.1 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Lua 2.1 is past end of life. This version no longer receives security patches. 11120 days past EOL — migrate to a supported version immediately.
EOL Date
Nov 28, 1995
11120 days past EOL
Latest Release
2.1
Standard release
Release Date
Feb 7, 1995
Lua 2.1 series
| Version | Latest | EOL Date | Status |
|---|
| 1.1 |
1.1 |
Feb 7, 1995 |
EOL |
| → 2.1 |
2.1 |
Nov 28, 1995 |
EOL |
| 2.2 |
2.2 |
May 14, 1996 |
EOL |
| 2.4 |
2.4 |
Nov 19, 1996 |
EOL |
| 2.5 |
2.5.1 |
Jul 1, 1997 |
EOL |
| 3.0 |
3.0 |
Jul 11, 1998 |
EOL |
| 3.1 |
3.1 |
Jul 8, 1999 |
EOL |
| 3.2 |
3.2.2 |
Feb 22, 2000 |
EOL |
What does Lua 2.1 end of life mean?
When Lua 2.1 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 Lua 2.1 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Lua 5.5 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Lua 2.1 reach end of life?
Lua 2.1 reached end of life on November 28, 1995. This version is no longer receiving security patches.
Is Lua 2.1 still supported?
No. Lua 2.1 reached end of life on November 28, 1995 and is no longer receiving security patches.
What should I upgrade to from Lua 2.1?
The recommended upgrade from Lua 2.1 is
Lua 5.5 — the latest actively supported version. Check the
Lua full timeline for all supported versions.
What are the security risks of running Lua 2.1 past EOL?
When Lua 2.1 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Lua should migrate immediately or implement compensating controls.