ar11 update - address

[vendy0000]

hello,
got my green card in 2014. and since then had moved to few address as i am n a consulting role.  
never updated my address with USCIS.but at one point  i updated last year, but didnt remember if the change was confirmed at that time.
now got a permanent job and updated my address  with USCIS, AR11 online , giving my previous address s the last address when i got my green card(my cousin address)
now, if the previous address doesnt match, will it be serious ground offense?
how to handle this if USCIS gets on this..just n case.

 

[pontevecchio]

Just update the address and in future remember to do so.