Microsoft announced last week that Windows 10 will be available on 29 July 2015.
This FAQ gives lots of information on the upgrade process, but here are the key licensing facts:
- The free upgrades will be available for Windows 7 SP1 and 8.1 devices for a year;
- Home editions will upgrade to Windows 10 Home, while Professional and Ultimate editions will go to Windows 10 Pro;
- Customers with Windows Enterprise licences will need Software Assurance to upgrade to Windows 10 Enterprise.
Read the whole FAQ here: http://bit.ly/1KPXWR8.