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ClickHouse Cloud offers different release channels to cater to different user needs regarding stability, access to new features, and upgrade predictability. Each channel has a distinct upgrade schedule and is meant to address the different usecases - for users that want instant access to new releases and those that want to defer upgrades to ensure they receive the most stable version of the release.

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Release channel details



All single replica services are automatically enrolled in the Fast release channel.
Scheduled upgrade windows are available for all release channels for services in the Enterprise tier. This feature allows you to configure a time window on a given day of the week for upgrades.

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Release schedule

Understanding release datesThe dates shown below indicate when ClickHouse begins the rollout to each release channel, not when your individual service will be upgraded.
  • Rollouts are automated and occur gradually over multiple weeks
  • Services with configured scheduled upgrade windows are upgraded during their scheduled window in the week after the channel rollout ends (starting on Monday 00:00 UTC)
  • Rollout completion may be delayed due to rollout pauses (e.g., holiday freezes) or health monitoring
  • An EOL date is no earlier than 60 days after the Slow channel rollout completes. For releases whose Slow channel end date is not yet scheduled, the EOL date is TBD.
For advance testing before production upgrades, use the Fast or Regular channel for non-production services and the Slow channel for production services.

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ClickHouse Private and ClickHouse Government end-of-life dates

The table below lists end-of-life (EOL) dates for the ClickHouse major versions shipped in ClickHouse Private and ClickHouse Government. Older versions are end of life. EOL dates marked as estimated may change.