Test Upgrades Before Applying To Production
MinIO strongly discourages performing blind updates to production clusters. You should always test upgrades in a lower environment (dev/QA/staging) before applying upgrades to production deployments.
Exercise particular caution if upgrading to a release that has backwards breaking changes. MinIO includes warnings in release notes for any version known to not support downgrades.
For MinIO deployments that are significantly behind latest stable (6+ months), consider using MinIO SUBNET for additional support and guidance during the upgrade procedure.
mc admin update ALIAS
mc admin update affects all MinIO servers in the target deployment
at the same time. The update procedure interrupts in-progress API operations on
the MinIO deployment. Exercise caution before issuing an update command on
You can specify a custom URL for updating the MinIO deployment using a specific MinIO server binary:
mc admin update ALIAS https://minio-mirror.example.com/minio