 Doing so required hardware and microcode customization on a S/360-40, to provide the necessary address translation and other virtualization features.Experience on the CP-40 project provided input to the development of the IBM System/360-67, announced in 1965 (along with its ill-starred operating system, TSS/360).CP-40 was reimplemented for the S/360-67 as CP-67, and by April 1967, both versions were in daily production use.