The strangler migration pattern is based on the same growth dynamic as the tree the pattern is named after. The idea is to create a new bounded context—the strangler—use it to implement new requirements, and gradually migrate the legacy context’s functionality into it. At the same time, except for hotfixes and other emergencies, the evolution and development of the legacy bounded context stops. Eventually, all functionality is migrated to the new bounded context—the strangler— and following the analogy, leading to the death of the host—the legacy codebase.
