[RELEASE] ScyllaDB Manager 3.11.0

Release Notes
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The ScyllaDB team announces the release of ScyllaDB Manager 3.11.0, a production-ready minor release of the stable 3.11 branch.

ScyllaDB Manager is a centralized cluster administration and recurrent tasks automation tool.

This release introduces Immutable Backups with Compliance Lock, providing protection against ransomware and accidental deletion.

Below are the changes in this release.

Immutable backup

ScyllaDB Manager 3.11 introduces new Immutable (Write Once, Read Many) backup feature. It allows for creating backup protected from deletion by retention locks ensured on cloud provider level.

Customers with regulatory or compliance requirements can now protect their backups using cloud-provider-enforced retention locks, preventing backup modification or deletion during the configured retention period.
This feature is controlled with the two new backup task flags.

–retention-lock-mode

When enabled, snapshot files in the backup location are protected from deletion until the retention period (set by –retention-days) expires.
Supported values:

  • disabled: No retention lock is applied to snapshot files (default).

  • unlocked: Preview. With this option the retention lock is applied, but can be shortened or removed with special permissions, check –override-retention-lock.

  • locked: Retention lock is applied and cannot be overridden. The backup is immutable and cannot be modified until the retention period is over.

–override-retention-lock

Override previously set retention locks, only available in unlocked mode.

Limitations

  • Retention locks are supported for GCS backup provider only (see GCS retention lock docs)
  • Reducing –retention-days when using –retention-lock-mode=locked is not supported

Those limitations will be tackled in the next ScyllaDB Manager releases.

More details, limitations and example usage can be found in the ScyllaDB Manager retention lock docs.

Other improvements:

  • Upgraded gocql to 1.18.0 (#4817)

Upgrade to the new release

ScyllaDB customers are encouraged to upgrade to ScyllaDB Manager 3.11.0 in coordination with the ScyllaDB support team.

The new release includes upgrades of both ScyllaDB Manager Server and Agent.

Useful Links:

ScyllaDB Manager 3.11.0 supports the following ScyllaDB releases

  • 2026.2
  • 2026.1
  • 2025.4
  • 2025.1

You can install and run ScyllaDB Manager on Kubernetes using ScyllaDB Operator. More here.