There should not be any imcompatibilities between 1.0.1 and 1.0.0. There are a couple of changes that affect the behavior of Swarm, however. The big ones are:
The automatic dropping of probe displays upon the dropping of an object to which those probe displays were attached. This could break your application code if you leave in the
message where you drop such an object.
The default probeMap has changed. This is only an issue when
is called without having previously created and installed a probeMap for that class. The new behavior is to create a probeMap on-the-fly that contains only the instance variables for that class.