Do I have to have my phone unlock and rooted to apply this update?
unlocked yes, rooted no.
Sony CM-B1201 > Samsung SCH-8500 > Motorola RAZR V3m > Samsung SCH-i760 > Motorola DROID X > HTC Thunderbolt > Samsung Galaxy Nexus/Motorola Droid Razr Maxx > Droid Maxx
What happened to the official 4.03 update? Are they skipping that update and going straight to 4.04 ?