Classified and...erm...classified.
I'd imagine now that they're focusing purely on Daesh, because they know that the side that they were supporting has now pretty much collapsed so the key is to undercut Daesh and stop it spreading across the border into Iraq. If they can get intel on what Assad and Russia are up to in the meantime then that's also good but I doubt that they'll be actively hitting Assad deliberately. They will probably be training people who will go on to hit Assad, but that's just peeing into the wind really.