A Change and Release Manager is responsible for overseeing the entire change management process, including assessing the impact of proposed changes, planning implementation strategies, coordinating with stakeholders, and ensuring smooth release of updates, while adhering to governance procedures and minimizing disruption to operations; key responsibilities include identifying change requests, evaluating their impact, prioritizing changes, managing the change approval process, developing communication plans, coordinating testing and deployment, and monitoring post-implementation activities to measure success.