You will now be able to join with 1.8 and the 1.9 version of the Minecraft client.
The mechanics of the server will still only be 1.8
The servers that support the 1.9 clients so far:
Lobby, SG, Creative, parkour,
We will allow 1.9 clients to join faction and PVPkits later this week (1.8 PVP COMBAT SYSTEM)
Help us decide the future of timebomb: