Awarded for completing Patching a Fleet of Images Without a Freeze and passing its exam, demonstrating the ability to design a wave and cohort schedule that bounds blast radius, write stop rules and promotion gates that run unattended, build canary analysis against a control population, establish rollback capability as the constraint on patch cadence, handle immovable workloads and release calendars honestly, and report fleet patch latency by its tail.
Certificates are designed to be checked, not just displayed.
The credential is valid for 12 months from issue. Its public page states the expiry date, and renewing means passing the current exam again — so the credential always reflects the current material.
