Server has been running for a long time, we start in 1.6 an swapped over to 1.7 snapshot, then to 1.7 when it was released and now swapped over to 1.8 Snapshots and will be running untill 1.8 is released then we'll use the release of 1.8. Its public server and not whitelisted like every other snapshot server around.
Mobs are on and Hard Difficulty