Hey soul...no offense meant i apologize if my reply seemed snarky...
as someone who is eagerly anticipating the marriage between my favorite DAW and my favorite Digital Vinyl Emulator I am following these developments very carefully.
that said, i did check my reply and your original post as well as the link you provided.
your quote:
"plus a paring up between Rane and Ableton!!! The big feature everyone has been waiting for. You are now able to control Ableton sound with your Serato Records, thru a new feature called, Livefeed."
technically this is true...but it is only implemented via a physical line out from Live to the AUX in on the SL3...basically sampling the audio. this is not a special ableton connection rather a live audio feed that could be anything external fed into the SL3
I am sure the actual collaboration is still forthcoming...note that link you sent out - a search for the terms ableton or even "8" bring no results. Also the only google search that implies this is the connection is a link to this thread

cheers to everyone anyhow with these dope products we're all blessed

word up
jr