Root [AT&T] will rooting again undo update to 4.1.2

[ls1swap]

Ok I rooted my att note 2 and all was fine and was running the stock rom. then i saw that there was an update for 4.2.1 which would give the ability for multiple windows, so i loaded the update knowing it would most likely unroot my phone. if i were to re root at this time i would still keep 4.2.1 and not go back to 4.1.1 right? fyi i used the chain fire odin method from xda and it worked flawlessly

 

[ppfd]

I actually noticed the update last night and did OTA with a rooted note 2.

Lost the root! I used root checker app from Joe Krin showed no root access

Used CF Auto Root from Chain Fire.

Looks like XDA form says CF Auto Root is working with 4.12 as well.

 

[Alexp08]

where can i get CF auto root?