# FE-RB-005 — Coherent release rollback

Trigger on a release-blocking boot, chunk, render, API, or security defect when
a safe forward fix is not demonstrated inside the incident window. Select a
prior immutable release, verify its asset/config/API tuple, atomically switch
the complete set, perform the provider cache action, and run smoke checks.
Escalate from the release-cache owner to the release approver/hosting owner.
The provider recovery target remains TBD until hosting is selected.

Close only when compatibility and release-coherence gates pass, critical smoke
passes, repeated `DEPLOY_MISMATCH` is absent, and the incident timeline records
the restored release ID. Pointer-switch or cache-purge completion alone is not
recovery evidence.