He did tell you the why Rob, because of the security update. It threw alot of items off as it came in and this is what was meant by one of the glitches.

It's like I stated in the blog, it's a developmental item and as such it simply can not have a release date set in stone, if it does then that date will just end up either being missed again or it will result in an RC being released that's filled with bugs and in the end does absolutely no good.