Are you talking about the Samsung Galaxy Nexus or the LG Nexus 4 which was released with OS 4.2, then got upgraded to 4.2.1 and now it's on 4.2.2
I don't beleive Rogers has updated the Samsung Galaxy Nexus past 4.1.1 at this point.
As for the Nexus 4, the 4.2.0 to 4.2.1 was to address an issue that December was missing in contacts when assigning a bday. 4.2.2 addresses overall bugs and stability issues
Rogers has released the 4.2.1 update for the Galaxy Nexus. I got that update a few days ago as well. Also the OP is talking about the Samsung Galaxy Nexus as it says it on his / her post..