Subversion is a modern free software Revision Control System (RCS) that the Subversion community’s developers have designed from the bottom up to be more efficient in form than CVS. Subversion has a structured architecture and has other notable advantages such as the ability to function efficiently with binary files and the relatively low cost of tagging and branching. Yet thankfully, Subversion still manages to maintain a workflow similar to CVS, thus potentially simplifying the learning curve.