When Better-SCM started, CVS was the most commonly used version control system in the Open-Source world. It worked well and was relatively reliable but had many limitations. It did not do file renames or copies, send the files to the server, no atomicity of operations, and no good handling of binary files.
To address this problem several alternatives emerged, some of which are either open-source or available to the community of open-source developers. The Better SCM project aimed to empower them, to compare them, and criticize them, hopefully leading to each being a more complete and accessible replacement.
Nowadays most open-source projects are no longer using CVS, and its numerous alternatives have matured. So Better SCM continues with its mission to improve the current state of the art of version control systems.