Git

Git is a free & open source, distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Every Git clone is a full-fledged repository with complete history and full revision tracking capabilities, not dependent on network access or a central server. Branching and merging are fast and easy to do.

Its features include:

• Distributed development
• Strong support for non-linear development
• Efficient handling of large projects
• Cryptographic authentication of history
• Toolkit design