Hey Lordjarhead! :)
I asked a question on a forum called United Operations (a server i play Arma 2 on) -
ME - "Hey Guys, i was just wondering if the UO server is going to use J.S.R.S 1.5 when it is released later this week? would improved the experience sooo much i think :)!"
USER - "Compatibility issues have meant it hasn't been used on the server, so I doubt it."
ME - "Argh i see, too bad.. But wasn't that with like the 1.4.3 or something like that?"
OTHER USER - "It is unlikely to ever be used on the server, the very way it works causes performance issues with high player counts."
Is this a problem you know about or anything like that? :) Can't wait for the release btw.! :)) Cheers