Rocket ChangeMan ZMF is an IT change management solution designed for IBM z/OS environments, giving organizations full control over mission-critical code changes from development through production. It provides an automated, auditable lifecycle with version control, quality checks, and strict governance to reduce risk and regression errors. Developers gain freedom of choice through a flexible front end that supports modern IDEs, DevOps toolchains, and traditional TSO/ISPF workflows. Change packages help teams govern, track, and deploy changes with confidence, whether updates are in progress or already live. Its native Git integration allows Git users to work entirely in their familiar environment while maintaining 100% accurate mapping and data integrity. With streamlined change promotion, secure packaging, and traceable builds, ChangeMan ZMF supports efficient, compliant, and predictable software delivery on the mainframe.