What is blue/green deployment from a PM's perspective?

Blue/green deployment is a deployment strategy where there are two identical environments: 'blue' (the current live version) and 'green' (the new version). The new application version is deployed on the green environment, where testing and verification occur.

When the new version is ready and verified, traffic is switched from the blue environment to the green, minimizing downtime and risks. If issues arise, a quick rollback can be performed by switching traffic back to the blue environment.

For PMs, this means:

• A smoother and safer release of new features.
• The ability to quickly rollback in case of errors.
• Minimizing impact on users.

Thus, blue/green deployment helps manage risks and improve release quality.