Well, this just sucks. I've been patiently waiting for an upgrade from 10586.164 to a release that will restore the feature in Windows 8.1 that reads aloud incoming texts, which as a driver is the best feature of the phone. I read that the latest version finally fixed this, but now it's not available for the HTC One M8?
I too provided numerous feedback requests to MS, and can't help from feeling like I've gotten the bird from MS. Support like this will cost them market share. I was rooting for them, but now it looks like I'm going back to Android or, ugh, maybe Apple for the first time. Way to go guys.