for others interested,that is just new firmware,so its not the complete update. bootloader will need relocked in order to flash,and it will update hboot,radio.etc.
a recovery flashzble rom should be available on xda somewhere as well. flashing the firmware in hboot,and the rom in recovery will effectively give you the entire update
be caustious with firmware updates. currently,hboot is allowing radio and boot image flashes in recovery(i believe). same thing happened with one s and one hboot updates removed those priveleges