Anyone can tell if Drools supports hot deployment of rules and fact types?

We are using Drools rules (No Guvnor/Workbench), and the whole cycle 
Development-Test-Production takes a very long time. Ideally we would like 
business users to add or modify rules in Production without risk of crashing 
entire rules engine. But as of today, any rule or fact type change is subject 
to full regression testing, as any other of our Java code. I tried to 
experiment with Drools Workbench, but so far it doesn't look like it can help 
much with hot deployment. Workbench can greatly streamline the development and 
deployment process, but generally speaking, since all Drools boils down to 
Java, it is essentially another jar deployment. So, it looks like if we would 
want to simplify our production deployments, the only option is to abolish the 
QA cycle for Drools jars (which our QA will probably never agree to).

Any ideas?

Thanks,
Alex
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