ITIL4 offers a more holistic and flexible frame of reference, while embracing modern ways of working like agile and DevOps.
“In short, deployment management functions as an important bridge between change and release management. These three practices are necessary to deliver services both fit for use and purpose.
Change control helps coordinate technical changes to maintain throughput and stability.Atlassian’s guide to agile ways of working with ITIL 4
Release management focuses on when and how to make new or updated component available to users.
And Deployment management is the technical vehicle that looks at how to move new or changed service components from one environment to another.“