I used to see the level of the Bosses next to their names but that is gone.
The changelog shows an option to show or hide the level but there is no option visible.

checked SavedVariables file and found : ["enableBossLevel"] = true,
still it does not show ingame

searched all .lua files in the folder and found ["enableBossLevel"] = false, in db.lua.
changed it to true and it works ingame
any way to change it ingame i overlook ?

hmmm it should be there

If not what WoW language you are using?

how do i open this settings window ? there is no button or keybinding for it !

Shift+Click on Minimap icon or with "/al options"

Great! Would you please mention it on the curseforge addon page ?
Would have saved me an hour time searching and trying.
Thank you for your work and response.

Maybe no bad idea, its added :D