derExperte
Member
Coupled with the fact Windows 10 will be free for everyone, even counterfeit keys from what I read.
Kinda, you can upgrade but your license won't turn into a legitimate one.
Also if someone wants to wait for the first 'service pack': http://www.neowin.net/news/windows-redstone-will-come-in-two-waves-june-and-october-2016