Submission + - MInecraft For Windows 10 Beta Release July 29th (windows.com) 1
Players who already have the PC edition of Minecraft will be able to download the Windows 10 beta version for free. Others can download Minecraft: Windows 10 Edition at a discounted price of $10 throughout the beta period.
Players who download Minecraft: Windows 10 Edition during the beta phase will still have the game when it comes out of beta, and receive all future updates to the game at no additional cost.