👉 In the context of programming languages, a "patch head" is a type of variable in a program that represents a new version or a specific change. It's like a version control system where you can keep track of changes to your code and revert them if necessary. For example, let's say you're working on a project and decide to make a small update to the existing codebase. You might want to include this update in your next commit, but you don't want to overwrite any previous