WIndows 10 build 17730.1000 is a n interim version while the bug bashing continues towards release.
Lot of fixes and more are likely to become available towards release day.
Android 7 and above work well with the new app. iPhones are well supported.
Lot of security fixes with Windows and Edge.
Fixed the audio slider for some rigs that had issues.
Reboots can be delayed longer which will help for some compute heavy tasks.
We found restarting our Lenovo X220 would freeze requiring a hard reset.