Windows 10 has now been out for some weeks.
Here is a great list of learning resources about Windows 10, both for IT Pro and Developers.
IT Pro Resources
- Windows 10 courses in Microsoft Virtual Academy
- Channel9 videos and on-demand webcasts about Windows 10
- Windows 10 Jumpstart webcast (Preparing Your Enterprise for Windows 10 as a Service ) – (Aug. 13th and 14th 2015)