The app. is going to use a date based versioning system going forward. The format is yyyy.mm.dd.build. The build number is the build for that day and not a 'total' build (I.E. the total amount of time the app. has been built).
Note: Visual Studio does not like it when you use '01' (I.E. January). It does not compile because it does not match any reg-ex patterns specified by the UWP. Instead, you must use '1' to represent January and '11' for November. This is a minor formatting concern from an end-user's perspective but a fixed position for the developer.
Craig Oates