Since the Stockholm-based Propellerheads revealed back in June that it was releasing a brand new version of its wildly popular Reason software, the question that got asked the most is “when?” Well, now there’s an answer! According to Propellerheads, the release date is set for September 26th. Hey, that’s less than a month from now, so start saving your loose change. No information is currently available on how much the upgrade might cost, but given their track record, we’re pretty confident the price will be, err, reasonable. In any case, we’ll share any information we get with you the minute (more or less) we get it. But any way you look at it, Reason 4 will ultimately end up being one of the biggest stories of 2007!