Big-Bang Release
Kind: anti-pattern
Layer: Enforcement Core
Aliases: Big-Bang Deployment
Record: architecture:big-bang-release
Severity: discouraged
Scope: state_transaction
Formed by: Ship a large, irreversible, all-user change without staged rollout, feature flags, canary, rollback, or blast-radius control.
Canonical: Ontology
A defect in which a large, irreversible change reaches every user at once, with no staged rollout.
Listed in Architecture principles, after Manual Runbook Dependency and before Irreversible Migration.