We're still not done with 1.4 but it's getting sooo close. Drivers have added a little to the 1.5 Alpha schedule to push it out past the 1.4 release so we're not trying to manage two releases at the same time, dividing our testing resources, etc. I'm shooting for 1.4 RC3 tomorrow. If all goes well with that, we could see final as soon as the end of this week or beginning of next.
