From advertising for Avast 2014 (http://www.avast.com/internet-security)

“Not just a marketing phrase! Our DynaGen-powered antivirus streams hundreds of tiny real-time updates to your PC’s virus database each day, to catch new malware faster. Its decisions are based on artificial intelligence that works inside the algorithm responsible for analyzing suspicious files.”

So according to this, DynaGen is in use in the preparation of the streamed updates that are being sent out. Certainly the streaming updates are working.