In fact, I think beta may have a point, he probably just didn't got the right words.

For my computer also some strange message occured after the update on 1.36 and I do not mean a typical "Inoffical game modification bla bla" message before starting the game, but a message inside the game like
"Warning: Non-critical Core mismatch! A core file not part of the Awesome mod does not match expected values. This could be a result due to version mismatch or third-party hack"

I used Awesome mod before for a long time, with different version numbers and I never got this explicit message above. I also do not think it is a third-party hack, as the message remains, if every other mod is deactiveted (by the way I KNOW that I do not have another core mod around^^)

Of course I tried the "Ignore" Buttom an nothing bad happend so far.
However it could be worth to look into it.