What is your question?
Upgrade as in the firmware?
I really do hope so, i tried the other day to load Paul Obrien's ROM from ModaCo without much sucess. but the ROM was for 4399 release and i'm on 3883, not a problem i restored back to stock [rom] and started again.
I just have a rooted device with custom recovery installed, and it was all really straight forward i'm just waiting for a rom now.
I have ORD
Nexus 5; Nexus 7
Circle Me or Follow Me
HTC Magic; DELL Streak; ZTE Blade; HTC Desire; Nexus S; HTC Desire Z; HTC Wildfire; LG Optimus 2x; HTC Hero, Acer Liquid Metal; HTC MyTouch 4G; Orange San Diego <SMH; Huawei Ascend G300; Samsung Galaxy Nexus; Nexus 4