On the latest post related to OSX Build there was somethinng about modernizing Krita.
"And there was some work modernizing krita as well, and that work is ready to be merged to the main branch and will be in the next release."
I don't know if there's any info on that somewhere, is it possible to get a lil info on what that means or is it spoilers?

It just means that Krita uses modern OpenGL instead of old-fashioned OpenGL. Basically shaders versus fixed-pipeline functions.