Docker has adopted the “ship early and often” mantra of software developers, but it isn’t just shipping a new version of the Docker client a mere two months after the last one. Instead, it’s offering up a major architectural change in Docker image delivery — a clear sign Docker’s success is forcing it to keep pace with its customers’ real-world needs.

The original incarnation of the Docker image-delivery framework, Docker Registry, had begun experiencing performance issues under load. Scott Johnston, senior vice president of product at Docker, described in a phone conversation how that was part of a learning experience about how the company would need to support security, enhanced access control, and performance for Docker users.

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