Safari 4 Beta
 

I've been using Safari 4 Beta about a month now, and it's working fine for me. Couple of items take some getting used to, but overall I like it okay. Now, my question: when I click "About Safari" I see "Version 4 Public Beta
(5528.16)". Does anyone know If the last item is the "build" number, and does it get periodically updated? I wondered as Apple fixed bugs and made other changes if these were automatically updated to Safari 4 or if I would have to get online and download Safari 4 Beta again to get the latest changes?

Thanks for any help....Jim