A Git system is indispensable in professional development because Git helps to version codes and classify them into so-called branches (versions). Since there is usually more than one developer working on the same project at the same time, the code must be versioned accordingly and clear import definitions must be provided for the respective version. Git is therefore not a programming language, but it is just as important in software development because Git is essentially a version control system that coordinates all changes to files made by multiple users. This has numerous advantages, the most important of which are a completely visible change history, including the modifying author, and the ability to revert to an old version if necessary. Git has also become an integral part of agile software development and a central feature in any deployment process.