 The first open-source distributed revision control system (DVCS) was 'tla' in 2001 (since renamed to GNU arch); however, it and its successors 'baz' and 'bzr' (Bazaar) never became very popular, and GNU arch was discontinued, although Bazaar still continues and is used by Canonical.However, other DVCS projects sprung up, and some started to get significant adoption.Git, the most popular DVCS, was created in 2005.