A minor bug has been found, but it was too tricky to avoid an update.
A typo has been found in the default Linux serial port : /dev/ttyACM0 which has been written with a O and not a Zero in a config file.
The consequence was that the new users (they are the most important ;)) has a bad config file at first use.
It is now corrected in branch 0.9 and branch 1.0
If your pydarts instance works, no need tu upgrade !
Cheers