Trying to add things that I dident see people mention. smile

-They removed alot of clutter from the game. Like, metric tons of clutter.
-somewhat related, you can see upfront now if a container is empty. Dont think that was the case for the early builds. Means you spend less time looting things that dont actually hold anything.
-The encounter in the druid grove with (I think she was called Ellie?) has been made possible to do without save-scumming. Its original incarnation was exceedingly harsh. And while in character for a druid in the setting, was just a tad to much.
-Shadowheart her stats were a complete mess and got a more sensible rework.
-Speaking of Shadowheart. Her demeaner is....less rude. Originally she was VERY unlikable. Now she just somewhat unlikeable when you meet her but her beeing carefull at least makes abit of sense. She opens up more easily I think. Need to do another playthrough to check on her whole arc though, As much as we can see in the EA anyway.
-Added the bard singing in the druid camp. Whatever you like it or not its a nice atmospheric change.
-Spells can now be cast in dialogue more easily with prompts. And you cant use peoples spells against them when you are in dialogue with them.
-Cantrips not leaving surface areas has been listed but their damage has also been corrected. Seeing as we want them to adhere to the written rules I think thats fair to mention when they do listen to us.
-Some encounters have been tweaked depending on player feedback. The minotaurs and Hook Horrors for example got some tweaks AFAIK. They were jumping about, multi attacking and doing concussive blasts with their jumps originally and it was a complete shit-show compared to what those encounters were supposed to be when comparing the monsters to the monster manual counterpart.
-They added the part of the Duergar in the underdark. That part wasent in the game with the earlier builds.
-Dialogue added for quests in the underdark. Think the quest for the boots of speed with the underdark gnome dude. Or was it the dude in the shroom fields? Either way, they added more dialogue based on what had already happened.

Already mentioned by people but I think il add it as well, because people keep insisting that Larian doesent listen to feedback.
-Advantage in melee by beeing behind the target has been taken out due to feedback. Dispite it beeing a literal interpretation from the rules. (you get advantage if your target cant see you attacking) And high ground is now a small bonus instead of advantage. The latter was their own house-rule but the former could be considered PHB valid. Even if it was a very literal interpretation of the rules.

Thats the most I can come up on short notice.. Im sure ive missed some things but the game has changed quite a great deal. Even if each change isent as large as they could be.