Sync Update 4.6 is out and working!!!
Sorry for the long wait but the answer is YES.
I haven't noticed any changes except texting. So far
I had to test text my wife a couple of times because I forget how it all works, it's been 2 1/2 years, LOL
I sent the confirm file (.xml) but I guess it will take a day or two before the website updates.
Also, a side note:
You need to unpair Sync in the phone and restart the phone, then pair with Sync again.
At least this is what I needed to do with my Motorola Droid Turbo 2
Every phone may behave differently.