Microsoft always deploys new OSes via Windows Update in a phased rollout strategy, i.e. even if your system isn't on an actual blacklist due to a known issue (which also happens), Microsoft doesn't actively push a new OS to the entire world on launch day.  Since Win10 1809 had such a rocky launch, to say the least, Microsoft is doing it slower than most.  In fact, Microsoft only STARTED the phased rollout for 1809 again in mid-January, according to this article.  My XPS 15 9530 only got it yesterday, for example, and I would have been just as happy never to get it because I'm planning to do a clean install when 1903 arrives.  It finally has some features I'm actually interested in (like Windows Sandbox) and I haven't done a clean install in a while.But if you really want it, you can always download it directly from Microsoft here.  The Media Creation Tool will allow you to either install the update directly on your system or create an ISO.
Hello there! I do have two questions regarding my XPS 13 9360 and I hope that someone might help me here. The notebook is nearly one year old and I installed windows 10 from a Microsoft ISO instead of the OEM image on the hard drive. DELL update is also installed and works. Right now Windows Update and DELL Update can't find any newer software for my notebook.   Thanks for any help, Sven
XPS 13 9360, no Windows update 1809