MS-DOS 4 suffers “git mutilation” due to being improperly open-sourced. MS-DOS 4 suffers “git mutilation” due to being improperly open-sourced. Post navigation AMD’s China-exclusive Ryzen CPUs come to the retail market — Ryzen 7 8700F listed for $420 and Ryzen 5 7500F for $296 ASML claims US ban on servicing China chipmaking tools will not hurt the company