Blue-Green vs Canary Deployments: Choosing Your Release Safety Net | Clickmasters

Route 1–5–25–100% of traffic to the new version with automated metric gates between steps. Failures surface on a sliver of users; the gate halts promotion without human heroics.

Schema migrations must be backward-compatible across versions — expand-migrate-contract — or your elegant traffic strategy dies at the database layer.

Skipping the discipline this article describes until an incident, audit, or stalled project forces it — every practice above is cheaper adopted early than retrofitted under pressure.