canary

Protect running work, validate a supported upgrade bundle, and expand through measured cohorts with a tested recovery path.

Build a week around release gates and dependencies. Budget artifact transfer, validate the exact runtime path, measure the intended workload, and size the canary evidence before promising full rollout.

A minor revision can change weights, encoding or response behavior. Compare pinned deployment bundles, evaluate task slices, monitor a representative canary and keep enough capacity to restore the old service.

Treat the upgrade as a tested change to a compatibility set. Drain safely, canary representative workloads, size waves from usable spare capacity and rehearse restoration of the previous working configuration.

Stop rollout expansion, preserve evidence and use the safest available mitigation. Compare versions under representative load, and size canary exposure from the regression you need to detect rather than a fixed traffic percentage.