Dear @Claymore,
I have noticed increase in stale shares from 11.2 to 11.3 about 3%. Nothing is changed beside the version of the miner. Can you check that?
What pool do you use?
us1.ethermine.org:14444, like before
I see some crazy values for stales today, up to 15%, it can be some issue on pool side. Try to start v11.2 and see if it helps.