Cyber-Physical Systems (CPS) are required to operate over a longer lifetime. As such, the initial requirements can be changed, requiring the system to be updated continuously. These updates to the system must be rolled out continuously (Continuous Deployment) throughout the system's lifetime. The DevOps methodology provides a structured, quality assuring way to do so, as it integrates Development and Operations of a system in a continuous cycle. DevOps is generally applied in software development, however in the design of CPS, which follows a Model-Based Systems Engineering (MBSE) approach, it is not. This is because many challenges remain in the application of DevOps in MBSE. My focus is to create the foundations for continuous deployment of safety-critical CPS using digital twins of the CPS.