R606s are starting to appear in the wild.   

I am getting all rejected shares when using prohashing.com pool, with and without asicboost enabled.

What is the appropriate/correct version of cgminer to be running with these devices?  I am currently running version (April 26 @ 5c757f5) posted by vh on 4-26-19, here: https://bitcointalk.org/index.php?topic=5053833.msg50506833#msg50506833

Thanks!