I need an explanation. Sometimes when I click the finder to see remind me which version of Tiger I have, it says 10.4.7 and other times it says 10.4.11. How can that be? Why does it change?

Thanks.

MacBook Pro - M2, Ventura 13.6
Safari Tech Prev 17.0
Safari 16.6
Firefox 116.0.2
iPhone 7 Version 15.8