Updates to a complex critical business service are released every calendar quarter.

Microservices architecturebreaks down applications into small, independent, loosely coupled services that can be developed, tested, and deployed independently.

Why does this improve release frequency?Each microservice can be updated, tested, and deployed on its own, reducing the risk and coordination overhead associated with monolithic releases.

This allows for faster feedback and more frequent delivery of value to users.

Extract-style reference:

“Microservices enable teams to deploy independently, reduce deployment risk, and increase release frequency by decoupling services.”

—Accelerate: The Science of Lean Software and DevOps, Chapter 4

PeopleCert DevOps Foundation v3.6:Stresses modular architectures for enabling rapid, independent deployments and continuous delivery.