multiple servers now can no longer connect to the same side in a rack as discussed on irc, which makes it less likely for people to run into issues - they can still be connected directly by cables next to the rack, for example; remote terminal texture in inventory no longer blinks. when held in the player's hand it will be blank if unbound and blink if bound to a server
removed block drivers for command block, note block and rim carriage controller, they have been moved to the OpenComponents addon