https://www.esoui.com/forums/showthread.php?t=9867
Hi and welcome.
In this thread I had collected info for new devs. Hope it helps you.
2) Use /tb or /zgoo GetAPIVersion() ingame and check the result. It should be printed to the chat
Or look at the wiki. We try to keep it updated as well.
/tb comes from the dev helping addon "mer torchbug" and /zgoo is from the "Zgoo" addon
Both are great to inspect in game values/variables or run code like /script does.