We should make sure there are no incompatible API changes regarding python-canopen's usage of the python-can package version 4.0.0 released today.

If there are, I suggest to release a version 3.0.1 here which pins the requirement to the last python-can release 3.3.x.

Then when any incompatibilities are addressed, make a version 3.1.0 that depends on python-can >=4.0.0 of required or just keep >=3.0.0 and remove the limitation <4.0.0 again.

If we are already compatible after thorough testing, this issue can just be closed.