git

Git /ɡɪt/ is a distributed revision control and source code management (SCM) system with an emphasis on speed.[4] Git was initially designed and developed by Linus Torvalds for Linux kernel development in 2005. Based on a recent survey of Eclipse IDE users, Git is reported to have 30% adoption as of 2013.[5]  Every Git working directory is a full-fledged repository with complete history and full version tracking capabilities, not dependent on network access or a central server.  Git is free software distributed under the terms of the GNU General Public License version 2.