Due to critical bug with rejected shares I uploaded v11.2 again, please re-download it.
If you are not sure if you updated properly, start miner and find "b517" in the log, at the beginning, this is correct build number.
I dont find b517 on Linux. Was the bug on Linux too, and how to check all is OK?

Beside that when upgrading I've seen performance (ETH only) down about 50kH/s on each RX4/580, but after relaunching my optimization process (Memfreq, dcri, ethi), I won 50kH/s. consumption seems slightly lower. I have to verify all, but it seems good on Linux+amdgpu v17.50.
