So still no fix in sight for 10.12? My personal laptop refuses to upgrade to High Sierra and my work laptop is yet able to upgrade because we have do some work with our mac management before that time. I haven't seen anything from Apple on older OSes and their status
There is already a fix for 10.12, it was pushed in December. https://support.apple.com/en-us/HT208331
The main disappointment is that input types are not nearly as expressive as output types.