Out of curiosity, the latest committed change I can see by looking through the zip (since we can't get this on github) is on 5/22. I'm studying through the icarus and cgminer files right now just to peek at what might have changed in those, otherwise I'm curious if this is six days old why it is only being provided now?
I'm sure it had to undergo done QC and testing. If they released a non working version people like you would be pissed!