The Bushido & Vortex update consists of 2 parts. The Bushido & Vortex brake firmware & the Bushido & Vortex computer firmware.
...The chainring lockring tool is used to loosen & tighten the chain ring lock nuts of XTR, XT, LX & STX-RC cranks. It features a handy fixing axle which prevents it from slipping during use. The M15x 1 Tool can be used as a Cartridge Tool for XTR bottom bracket cartridges.