Is there (I know there is but I figure either of you know a good one) a quick place that describes the differences in these versions of O/S X? Thank you.
You know Lx, I’ve never thought about it. . . I’ve been there and experienced the incremental changes. The changes in name versions usually had hundreds of improvements and additional features, the secondary point changes were improvements, security patches, fixes, and tweaks.
Some were model specific, for example a decimal upgrade that would only effect the MacBook Air that might have an issue with battery life.
The best listing I know of is here.
http://apple.wikia.com/wiki/List_of_Mac_OS_versions
That includes both Apple MacOS and OSX.