You should try FSD. 12.3.6 is really quite good. I used to be in the camp of rarely using it myself, almost never on city streets. But with the jump to 12.3.6, I use it almost all the time, even short trips to the gym or grocery store. 12.4.1 is supposed to bring completely hands free operation, if the cabin camera can see your eyes looking in the right direction.
I am not aware of any general features that have changed much. Most of the recent updates have to do with what I'll call "software alignment" providing FSDS to folks that were ahead of the general FSD train.