bzr got more than that from BK, it got one of my favorite things, per-file checkin comments.  I liken those to regression tests, when you start out you don&#x27;t really value them but over time the value builds up.  The fact that Git doesn&#x27;t have them bugs me to no end.  BZR was smart enough to copy that feature and that&#x27;s why MySQL choose bzr when they left BK.<p>The thing bzr didn&#x27;t care about, sadly, is performance.  An engineer at Intel once said to me, firmly, &quot;Performance is a feature&quot;.