This is not released, but multiple reputable sources claim it exists (Windows Central, Thurrott, Brad Sims, Betanews, Neowin) and have visualized what it looks like, how it works, claim to have internal Microsoft sources, and have a surprising amount of technical details. This is an AMAZING read and I have posted it here because we should probably brace ourselves for it. It also is the most likely reason why Microsoft is releasing 20H1 builds before the 19H2 builds.
For the project, it sounds like:
- Our drivers will still work (or with little modifications and repackaging)
- This OS is designed from the heart to run on less powerful devices well, so as to better compete with Chromebooks. Win32 apps should still work, but there will be less “overhead” and “cruft.” This could be quite helpful for running on the Pi…
- We may need bigger SD cards (the dual partition update system above)
There is significant evidence we will hear more at BUILD 2019, or at least, later this year.