Do yourself a favor. Don't aim for ZSNES compatibility, aim for real console compatibility. At it's best it's time wasted, at it's worst you're causing flaws specific to other means of playing.
People still uses zsnes..? It's the nesticle of snes emulation...
Yes, even though it even has multiple found security holes at this point people still use the thing. It still has it's uses. I've seen it's still somewhat popular with...
-YouTube. I saw Markiplier use at least the overlay, and since he's really popular... well, you know how it goes.
-Crazy old SMW hacks due to them using an emulator flaw for music. Also Flames of Eternity.
-People who say it has better netcode. There's truth to this, though it's really more like the lesser evil in that regard.
-Ubuntu users, apparently? I've read reports that it's easier to run than any other SNES emu on there.
There's betas on Git for a new version, but it's not much to woop about and if it ever comes out it'll take forever and a half. New ZSNES versions have been talked about since the last version IIRC.