The Second Edition of Pathfinder came out today. As a long-time player of Pathfinder, what changes should I expect to see when I play the second edition? What are the major points that have changed?

To clarify, I'm looking for high-level changes. Obviously, a large number of spells, class features, feats, and everything else will be changed. What I'm looking for is to know how the game feels for a player of Pathfinder 1e, and what mechanics are different enough to trip up an experienced player.

For example, the Ranger no longer has a Favored Enemy feature. I'm not really looking for the specifics on the class features that were changed, but I *am* interested in whether or not the Ranger feels totally different to play, and what an experienced Ranger player might be tripped up by. 

A good example of what I'm looking for is [KitsuneYMG's answer to a similar question about D&D 3.5 and Pathfinder](https://rpg.stackexchange.com/a/3183).