hi for the second point.1709 is not yet supported.
| Horizon 7.0.1 | Horizon 7.0.2 | Horizon 7.0.3 | Horizon 7.1 | Horizon 7.2 | Horizon 7.3.2 | ||
| Horizon 7 | |||||||
| Win 10 1709 Semi-Annual Channel (targeted deployment) (Enterprise, Professional) | Not supported | Not supported | Not supported | Not supported | Not supported | Not supported | Tech Preview Supported |