Blue-Green Deployment
A deployment practice that maintains two comparable production environments and switches traffic from the active version to the new one.
Plain English
Prepare the new version separately then move users to it by changing which environment receives traffic.
In context
In a blue-green deployment one environment serves current traffic while the other receives and validates the new version before a controlled traffic switch.
Example
“The green environment passed checks so the team switched production traffic from blue to green.”
When you'll hear this
- production deployment
- release cutover
- rollback planning
Common misunderstanding
Blue-green deployment can simplify switching back but it does not remove data migration compatibility capacity or validation risks.
Also known as
blue green deploymentblue-green releaseblue green rollout
Commonly used by
Related terms
Often compared with
Updated: 2026-08-28
