It basically means that scene are incompatible between release 0.6 and 1.0. To help the conversion, you can use the tool available here Basically, you can use it like that:
sh convert_0.6_to_1.0.sh your_scene.py > your_scene_1.0.py
You may need to edit the resulting file manually to fix last issues. If you get in trouble, feel free to send us a mail on firstname.lastname@example.org with your scene.
The Python bindings for MORSE have been completely rewritten, now supporting a modern asynchronous interface (based on Python 3.2 futures). It is also deemed as feature complete: it supports discovery of the simulation components, synchronous/asynchronous service invocation (including service cancellation) and synchronous/asynchronous read/write of datastream (#216).
MORSE unit-tests now use this new API.