Migrating from Minimus to Docker Hardened Images: What You Need to Know

The Minimus container image registry will cease operations on October 22, 2026, leaving users to migrate their container workloads. Docker is offering free migration assistance to affected customers through its Hardened Images product line, which provides equivalent container images with enhanced security features. The migration process requires minimal changes, primarily updating the FROM line in Dockerfiles. Docker's open source catalog contains over 4,000 hardened images that maintain compatibility with Alpine and Debian base images while reducing vulnerabilities by up to 95% compared to standard public images. The company provides detailed migration guides and access to technical support to help users transition before the maintenance period ends.