# Rollback and Release Governance One-sentence definition: Pre-approved, tested rollback plans and clear roles ensure safe, reversible releases. ## Key Facts - Define rollback criteria, steps, and data migration reversals. - Freeze windows, approvals, and comms plans for high-risk changes. - Capture evidence: version, change ID, tests, sign-offs. - **Verify:** check official (ISC)² CBK and current exam outline. ## Exam Relevance - Choose documented rollback over ad-hoc fixes. **Mnemonic:** “**If you can’t roll back, you can’t roll out**.” ## Mini Scenario Q: Rollback blocked by one-way migration—lesson? A: Require reversible migrations or backups/snapshots before change. ## Revision Checklist - Two rollback pre-reqs. - Evidence items. - Migration rule. ## Related [[Deployment Strategies Security (Blue-Green Canary)]] · [[Feature Flags and Kill Switches Safety]] · [[Restore Testing and Recovery Procedures]] · [[CI CD Security (Runners Secrets Artifacts)]] · [[Domain 8 - Index]]