Version 2.1.0
This version adds a keep-alive mechanism, so the connection isn't closed when no commands are sent for a few minutes (I don't know the exact duration, but apparently [1][2]). This was proposed in #9.>5min
[1] The duration is now configurable in the Teamspeak Server version 3.3.0
[2] The default has been lower to 4 minutes in Version 3.0.1