Practical differences between Teal/Green and Blue?

[EQBallzz]

I played original EQ but it was long ago. I also played P99 blue but by the time I started on blue most of the expansions/patches were released so I didn't get to relive the classic to blue transformation as patches rolled out.

I'm curious if anyone knows of a thread, webpage or maybe just can provide some practical differences in the state of the server compared to say blue.

I know there are some items that still available (like manastone) but I don't just mean items. I mean everything like UI differences (Duxa not available until ?) or like tab targeting (I don't seem to be able to use tab to cycle through NPC targets even though it's in the UI settings page) or maybe ZEM differences or any other good to know differences in this early version of the server?