stbenjam Deploy
Push the build to the staging channel and watch the soak dashboard for thirty minutes. The error-rate panel is the one that matters; ignore the latency panel during the first ten minutes because cache warmup dominates it. If error rate stays under half a percent, request a signed manifest from the release captain.
Promotion happens one region at a time, smallest first. After each region, wait for the reconciliation job to complete a full cycle before starting the next; overlapping cycles double-write inventory rows and the cleanup is manual. If any region shows elevated 5xx after promotion, halt the rollout, revert that region, and page the on-call before touching the remaining regions.
Rollbacks reuse the previous signed manifest, which stays valid for seven days. Past seven days there is no fast rollback: a new build must go through the full staging soak again, so treat day-seven promotions with extra care and never promote on a Friday.