Amnesia Potato update

[Pavke]

Hello guys

I was wondering did anyone find something in Amnesia after potato update?
Rumor has it is Valve ARG.

People already found this image: http://i.imgur.com/nTjIL.png
In level files there is secret_door folder but no one can't find the door to it.

Any help?

EDIT: Sorry, somehow I missed Update? threat