3D Spotlight have tested the new 21.xx series of Detonators Drivers.
They compared the new Detonator XP4 21.81 against the last official Detonator 3 drivers 12.41 and these's leaked drivers: 12.60, 12.90, 14.20, 14.40, 14.60, 14.70! So warp to 3dspotlight for the Driver Comparison.