Coming from a UNIX background, with some knowledge of CVS and git, I have gotten my Windows development skills up in just about every area. But I still have no idea if there is a single VCS that Windows devs “have” to know.
Is there one used above all others?
The makers of FinalBuilder used to do a survey every year of their (mostly Windows-based) customers. I can’t find anything more recent than their 2008 survey, but here’s what it looked like then.
As you can see, there isn’t just one you have to know. However, you’d be a fool not to familiarize yourself with Subverion and Sourcesafe.
If I were to predict how it has changed since then, I’d guess that Subversion has added users, SourceSafe has lost a bit of ground to Team Foundation, and that Git now shows up, but with only minor numbers.