On july 29, there is a free upgrade to windows 10. Make sure your windows is up to date with window updates and your system is windows 7, 8, 8.1. there will be a windows logo on the right bottom side were your startup programs our. If you found the icon then reserve you copy to windows 10 and make sure you enter you email when reserving your copy. Then your done and the waiting begins.
I am still waiting for plugins and mods to update to 1.8 of Minecraft.