6 weeks with SVN, 500 revisions. Actually, if you deduct “structural” revisions and revisions in branches it trims down to 422 revisions. The cool part is that little window in the bottom right of the screen. If you’re about to break code on a new project and you are thinking about adding automated builds/tests … do not do it later. Every character of code is an extra ounce of pain when you “get round to it”.