In the Downloads > Windows section of https://apps.ankiweb.net it references v2.1.6 when talking about upgrading, but the latest version is 2.1.38. I think it’s just a typo, but I’m bringing it up so the site admin can correct it if necessary.
That paragraph is about upgrading from 2.1.6, i.e. switching from a pretty old version to a recent one. So it should be alright.
Wait, I get it now. I was reading it as ‘2.1.60’ when it’s actually ‘2.1.06’. Sorry!