I was in the ender and I updated my server on snapshot 14w03b.
After that I didn't play because I lost the connection to the server (Internal Exception: io.netty.handler.timeout.ReadTimeoutException) and I couldn't connect because the server saw myself still on it

1. update the server on snapshot 14w03b
2. go in the ender
3. wait

after that you will lost the connection to the server and you will see an error message : Internal Exception: io.netty.handler.timeout.ReadTimeoutException

I'm sorry for my bad english, I'm french :/