after I485 approval, exactly how many updates do we get?

来源: 2010-06-21 11:21:10 [旧帖] [给我悄悄话] 本文已被阅读:

The three of us got different things:

#1: production ordered notice + welcome letter + approval notice
#2: production ordered notice + approval notice
#3: welcome letter + card production ordered notice

Is there a pattern here, or is USCIS trying to be totally unpredictable, even at the end of the game?