Question What is the latest update for droid razr

Hi everyboy .. i am new in this forum ... i have a motorola droid razr and the latest update that i have recevied officially it was ICS .. and from that time tell now there are no any other OTA updates .. So Now I want to upgrade my android version manually .. so can you guide me to the latest official update thats available for my phone including all the steps because i have no idea about how to do this ...

Thanks