Avast Update

I just noticed that on the “Summary” page of my Avast Free, it has the Program Version in ORANGE with an exclamation point…and to the right is the button to update. My question is: If I update will I be updating to version 6?..or would it be merely an update to version 5? Thanks.

Its updating to version 6.
Avast 6 has now been officially released (as version 6.0.1000).
http://forum.avast.com/index.php?topic=71639.0

Thank You!