This BT client incorporates the codebase of the official version as well as all the improvements of the experimental version, below. Additionally, there are some misc. bug fixes, improvements from the latest development CVS sources, a user preference

CVS is a version control system, an important component of Source Configuration Management (SCM). Using it, you can record the history of sources files, and documents. It fills a similar role to the free software RCS, PRCS, and Aegis packages.