and Darcs. Which is more "patch based". Never used it much, but it has been around for quite a while (march 2003). arch/tla/ArX was also an early one (2001? 20

and Darcs. Which is more "patch based". Never used it much, but it has been around for quite a while (march 2003). arch/tla/ArX was also an early one (2001? 2003?). I recall it was distributed and had branching.