I'm creating my KieSession by setting STREAM as the event processing mode in the configuration:

KieBaseConfiguration config = KieServices.Factory.get()
.newKieBaseConfiguration();
config.setOption(EventProcessingOption.STREAM);

KieContainer kc = ks.newKieContainer( ... releaseId ... );

KieSession ksession = kc.newKieBase(config).newKieSession();

After that, everything works fine. But when I try to dynamically update to a new version (containing new rules):

kc.updateToVersion( ... newReleaseId... );

It seems like all of the facts are removed from the session, and my rules are no longer triggered.
When I do not use the configuration object when creating the session and just use:

KieSession ksession = kc.newKieSession();

then, everything works as expected. However, this is not an option because I need a way to specify the processing mode as STREAM (and this is the only way I know of).