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In correlation with the end of life (EOL) date for MSR 4.0.x, Mirantis stopped maintaining this documentation version as of July 17, 2026. The latest MSR product documentation is available here.

Migration Guide#

This guide offers comprehensive, step-by-step instructions for migrating artifacts from Mirantis Secure Registry (MSR) versions 2.x and 3.x to MSR 4.x. It ensures a smooth transition, preserving data integrity and minimizing downtime throughout the migration process.

The transition to MSR 4.x introduces a fundamentally updated code base, enhancing performance, security, and scalability. Review whats-new to understand any changes in Mirantis Secure Registry behavior.

If you are using custom repository permissions, custom image signing, or Swarm, review removed-features and what-to-expect-when-transitioning carefully. If you have any questions, contact support for further guidance.