Linux Mint 21 · Version Status
Linux Mint 21 End of Life Date
Linux Mint 21 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
⚡
Linux Mint 21 reaches end of life on April 30, 2027. Plan your migration now — 174 days remaining.
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EOL Date
Apr 30, 2027
174 days remaining
Latest Release
—
LTS release
Release Date
Jul 31, 2022
Linux Mint 21 series
Where these dates come from
End of lifeApr 30, 2027Vendor's own page, checked by a person · linuxmint.com · checked Sep 28, 2026high · 2 sources agree ReleaseJul 31, 2022Vendor's own page, checked by a person · linuxmint.com · checked Sep 28, 2026high · 2 sources agree Confidence: high = two or more independent sources agree (the vendor's page read by our adapter, a person's check against the vendor, the dataset the date came from); medium = one; low = the vendor page disagrees or our last read is stale.
How we source dates.
Lifecycle detail
Linux Mint 21 was released on July 31, 2022 and support is scheduled to end on April 30, 2027 — a planned supported lifespan of 4 years and 9 months, longer than the 3 years and 10 months median for Linux Mint LTS releases. It is a long-term support (LTS) release, so it carries a longer patch window than the interim releases around it.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Linux Mint 21 support options
Some vendors and third parties sell security patches beyond end of life; whether one covers this version varies. Compare your options.
Compare Options →
| 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 |
| LMDE 4 'Debbie' |
— |
Aug 1, 2022 |
EOL |
| 20 LTS |
— |
Apr 30, 2025 |
EOL |
What does Linux Mint 21 end of life mean?
When Linux Mint 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: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Linux Mint 21 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Linux Mint 22.3 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Linux Mint 21 reach end of life?
Linux Mint 21 reaches end of life on April 30, 2027. That is 174 days remaining.
Is Linux Mint 21 still supported?
Linux Mint 21 is still supported but approaching end of life on April 30, 2027. Begin planning your migration now.
What should I upgrade to from Linux Mint 21?
The recommended upgrade from Linux Mint 21 is
Linux Mint 22.3 — the latest actively supported version. Check the
Linux Mint full timeline for all supported versions.
What are the security risks of running Linux Mint 21 past EOL?
When Linux Mint 21 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Linux Mint should migrate immediately or implement compensating controls.