Where is the Motion 5.0.1 update?

I looked at the "About Motion" box to see what version I have. It says 5.0. I wondered if there was an update, so I started to search. 30 minutes later, I'm no closer than when I started.

The first obvious thing I did was choose Software Update from the Apple menu. It tells me that all of my software is up to date, so I decided to check further just out of curiostiy.

I found this page telling me what's new in Motion 5.0.1:

http://itunes.apple.com/us/app/motion/id434290957?mt=12

I found this page with the Motion 5.0.1 release notes:

http://support.apple.com/kb/HT4591

When I go to the downloads page, all I see for Motion 5 is the Content update:

http://support.apple.com/downloads/#motion%205

So, what am I missing? Is there a 5.0.1? If so, where is it?

Related questions...

Is there an automatic update option for Motion? I sure can't find one. It's easy to find that option on iTunes. If there isn't one for Motion, why not?

Yes, I'm a bit frustrated at this point (sorry). Any help would be appreciated.

Thanks,

Bryce