Linuxmint 21.3 · Version Status
Linuxmint 21.3 End of Life Date
Linuxmint 21.3 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
✓
Linuxmint 21.3 is actively supported. EOL date: April 30, 2027.
EOL Date
Apr 30, 2027
356 days remaining
Latest Release
—
LTS release
Release Date
Jan 12, 2024
Linuxmint 21.3 series
| Version | Latest | EOL Date | Status |
|---|
| 18.1 |
— |
Apr 1, 2021 |
EOL |
| 18.3 LTS |
— |
May 3, 2021 |
EOL |
| 19 LTS |
— |
Apr 1, 2023 |
EOL |
| 19.1 LTS |
— |
Apr 1, 2023 |
EOL |
| 19.2 LTS |
— |
Apr 1, 2023 |
EOL |
| 19.3 LTS |
— |
Apr 1, 2023 |
EOL |
| lmde4 |
— |
Aug 1, 2022 |
EOL |
| 20 LTS |
— |
Apr 30, 2025 |
EOL |
What does Linuxmint 21.3 end of life mean?
When Linuxmint 21.3 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 Linuxmint 21.3 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Linuxmint 22.3 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Linuxmint 21.3 reach end of life?
Linuxmint 21.3 reached end of life on April 30, 2027. That is 356 days remaining.
Is Linuxmint 21.3 still supported?
Yes, Linuxmint 21.3 is currently supported. The EOL date is April 30, 2027.
What should I upgrade to from Linuxmint 21.3?
The recommended upgrade from Linuxmint 21.3 is
Linuxmint 22.3 — the latest actively supported version. Check the
Linuxmint full timeline for all supported versions.
What are the security risks of running Linuxmint 21.3 past EOL?
When Linuxmint 21.3 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 Linuxmint should migrate immediately or implement compensating controls.