blue‑green deployment
Experts Agree - Blue‑Green Deployment Wins Zero‑Downtime Software Engineering
In 2023, organizations that adopted blue-green deployment reported fewer user-impact incidents compared with traditional rolling updates. The approach isolates new code in a parallel environment, allowing an instant traffic switch and immediate rollback if needed. This reduces risk while keeping service levels high. Blue-Green Deployment: A Zero-Downtime Workhorse Blue-green deployment