All of them you just have to match the ? MHZ located on your S9 hash board and download the one that matches your miner. 500 , 600 , 650 MHZ depending which one you have.
Yes, it works now in Nicehash.
File System Version - Fri Jun 24 16:25:13 CST 2016
3xS9 (650M)=45.51 TH/s
But today I prefer Antpool with first S9 software - Fri Jun 24 16:25:13 CST 2016