Thunderbird Major Update Update

I mentioned earlier in the Weekly Update 2007-08-06 post that there is going to a major update to take TBird users from the to the build. I got to thinking about this and something didn’t make sense.  If the Major Update feature is still being tested, how could it be included with TBird I am guessing they meant to say TBird, which is in the works. Fx included the Major Update feature, so may be that is where they got from.