So I do not read the blurb until I have to...
I tried hooking up my A99 to Lightroom 5.3 on the laptop for a tethered shooting session.
LR would not recognise the camera.
I have used tethered shooting before with Sony software on the A700 so tried that- no luck.
The Sony software of course still works.
So I check on the Adobe site and only High end Canons, Nikons and a couple of Leicas are supported.