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ClickHouseEnd of Life (EOL) Dates & Support Status

Active
OtherLatest Version: 26.9.3.38Latest Release: Sep 26, 2026

Support summary

ClickHouse currently has supported cycles. Track the next EOL date and validate upgrades before your change window.

What do EOL and support statuses mean?

Next EOL

Mar 26, 2027

ClickHouse 26.3 · 180 days left

Supported cycles

4

4 lts

Versions

21

Latest Version

26.9.3.38

Active Support

4

EOL

17

Lifecycle Timeline

Dec 18, 2025As of Sep 27, 2026
26.9Active · Date not announced
26.8Active · Aug 27, 2027
26.7Active · Date not announced
26.6EOL · Sep 21, 2026
26.5EOL · Aug 27, 2026
26.4EOL · Jul 22, 2026
26.3Active · Mar 26, 2027
26.2EOL · May 21, 2026
26.1EOL · May 5, 2026
25.12EOL · Mar 26, 2026
ActiveSecurityEOLHistorical phase unknown

Bars show history up to the snapshot date. Gray intervals lack dated support boundaries; arrows indicate an unannounced EOL date, not a support guarantee.

Versions

ReleaseRelease DateActive SupportEOLLatest VersionLTSStatus
26.9Sep 21, 2026MaintainedDate not announced26.9.3.38No
Active
26.8Aug 27, 2026MaintainedAug 27, 202726.8.12.53
Yes
Active
26.7Jul 22, 2026MaintainedDate not announced26.7.15.52No
Active
26.6Jun 25, 2026EndedSep 21, 202626.6.8.7No
EOL
26.5May 21, 2026EndedAug 27, 202626.5.7.64No
EOL
26.4May 5, 2026EndedJul 22, 202626.4.5.143No
EOL
26.3Mar 26, 2026MaintainedMar 26, 202726.3.34.136
Yes
Active
26.2Feb 27, 2026EndedMay 21, 202626.2.19.43No
EOL
26.1Jan 30, 2026EndedMay 5, 202626.1.12.23No
EOL
25.12Dec 18, 2025EndedMar 26, 202625.12.12.1No
EOL
25.11Nov 27, 2025EndedFeb 27, 202625.11.9.34No
EOL
25.10Nov 1, 2025EndedJan 30, 202625.10.7.6No
EOL
25.9Sep 27, 2025EndedDec 18, 202525.9.7.56No
EOL
25.8Aug 29, 2025EndedAug 29, 202625.8.33.6
Yes
EOL
25.7Jul 29, 2025EndedNov 1, 202525.7.8.71No
EOL
25.6Jun 26, 2025EndedSep 27, 202525.6.13.41No
EOL
25.5May 22, 2025EndedAug 29, 202525.5.11.15No
EOL
25.4Apr 22, 2025EndedJul 29, 202525.4.13.22No
EOL
25.3Mar 20, 2025EndedMar 20, 202625.3.14.14
Yes
EOL
25.2Feb 28, 2025EndedMay 22, 202525.2.2.39No
EOL
25.1Jan 28, 2025EndedApr 22, 202525.1.8.25No
EOL

Data sources

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Frequently Asked Questions

Which versions of ClickHouse have reached end of life?
The following ClickHouse versions have reached end of life and no longer receive security updates: 26.6, 26.5, 26.4, 26.2, 26.1, 25.12, 25.11, 25.10 (and 9 more). It is recommended to upgrade to a supported version.
Is it safe to continue using ClickHouse 26.6?
ClickHouse 26.6 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of ClickHouse?
The latest version of ClickHouse is 26.9.3.38, released in the 26.9 release cycle.
How many versions of ClickHouse are currently supported?
ClickHouse currently has 4 actively supported version(s): 26.9, 26.8, 26.7, 26.3.
When does ClickHouse 26.9 reach end of life?
ClickHouse 26.9 does not have a specific end-of-life date announced yet.
What should I do when ClickHouse reaches end of life?
When a ClickHouse version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.