Complete end-of-life dates, support windows, and security status for all Plone versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
✓Plone 6.0.15 is actively supported. Next EOL: version 6.1 on December 31, 2027.
Latest Active
6.0.15
6.0 series
Next EOL
6.1
Dec 31, 2027
Active Versions
2
of 6 total
EOL Versions
4
no longer patched
Release Cycle Timeline
■ EOL
■ Warning
■ Active
┊ Today
All Versions
Version
Latest Release
Release Date
EOL Date
Days
Status
4.3
4.3.20
Apr 6, 2013
Dec 12, 2022
1244 days past EOL
EOL
5.0
5.0.10
Sep 27, 2015
Dec 12, 2022
1244 days past EOL
EOL
5.1
5.1.7
Feb 5, 2018
Dec 12, 2022
1244 days past EOL
EOL
5.2
5.2.15
Jul 10, 2019
Oct 31, 2024
555 days past EOL
EOL
6.0
6.0.15
Dec 12, 2022
Dec 31, 2027
601 days remaining
Active
6.1
6.1.4
Feb 7, 2025
Dec 31, 2027
601 days remaining
Active
What does Plone end of life mean for your organization?
When a Plone version reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Plone should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Check your full stack for EOL risk
Upload requirements.txt, package.json, or Gemfile — full EOL report instantly.
The next Plone version reaching EOL is 6.1 on December 31, 2027. See the full table above for all version EOL dates.
What is the latest supported version of Plone?
The latest active version of Plone is 6.0.15. Always verify against the table above as support windows can change.
What happens when Plone reaches end of life?
When Plone reaches end of life, the vendor stops issuing security patches. Any CVEs disclosed after the EOL date accumulate indefinitely with no patch path — creating an ever-growing attack surface that most vulnerability scanners do not flag.
How do I check if I'm running an EOL version of Plone?
Check your current version against the table above. If your version's EOL date has passed, you are running unsupported software. You can also use the endoflife.ai Stack Scanner to check your entire dependency file at once.
Is there extended support available for EOL Plone versions?
Some vendors offer extended support for EOL software. Contact the original vendor or check with enterprise support providers for options.