Version control

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In software engineering, version control (also known as revision control, source control, or source code management) is the act of controlling computer files and versions of files. Primarily files are source code text files, but generally can be any type of file.

Version control is a component of software configuration management.^[1]

A version control system is a software tool that automates version control. Alternatively, version control is embedded as a feature of some systems such as word processors, spreadsheets, collaborative web docs,^[2] and content management systems, e.g., Wikipedia's page history.

Version control includes viewing old versions and enables reverting a file to a previous version.