Release notes Beta 0.1
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[beta0.1-nofeedback] 
    The new 1.4 version modules do not provide position feedback.

[beta0.1-servohalt] 
    When 1.4 module servos stall for any length of time, they may go limp. This can only be corrected by power-cycling the module.

[beta0.1-motorfb] 
    Motor modules do not provide valid velocity feedback readings.

[beta0.1-bushang]
    (linux) The code may stall inside the pcan library read() function if a module disconnects from the bus. To exit such a stalled process, use ctrl-z and kill it from the commandline.