Re: Build number?
There are three version numbers. The 10.[randomdecimal] one that doesn't matter, the build number, and the version number. The version number is 1809, even though that's the wrong number (see my post above for why it's wrong if you care which you probably shouldn't). You have the build number, which at least goes in order. So when that number goes up, the build is newer. Build 17134 seems to be the final version of windows 10 version 1803. So in short, it's crazy.