How to upgrade to the version of Win10 Pro that YOU want
Those of you on Win10 Pro version 1703 — that’s my version of choice — just ran out of time, at least to a first approximation. Microsoft won’t be pushing any more security patches onto your machine. Yes, I know some of you figure that’s a feature, but never mind. You’re left with three options: Move to Win10 version 1709, version 1803, or (with fear and trepidation) version 1809.
If you’re running Win10 version 1709, you have the option of staying with 1709, moving on to 1803 (and thus giving yourself seven additional months of support), or leaping on 1809. Be careful what you wish.
Source: Enterprise Applications