Version control

When it comes to software development, an important idea is version control. We can use diff or delta encoding to focus on the difference efficiently. While in the beginning of the project, we can usually experience a fast expansion period, versions will be a mess after several iterations. It is not only about the number counting but also about making sure that we can “rollback” if something goes wrong. Also, usually we use git to deal with different versions because it is easy for us to distributed-control them. In short, it is a long term investment that saves our time in the future.