Howdy, Patch 2.0 is a bit of a big one bringing together a bunch of new systems and content.

Dolendale Village
Dolendale Village and the surrounding Island is a new larger continent pre-emptively putting down some space to add more challenges in following patches.
The Village itself has some of the early inhabitants to chat, with but no complicated quests just yet.
Fishing
Fishing is available in Dolendale Village, it currently is a little minigame with intention to expand the challenge with different Fishing Lines to be used and tougher challenger in reeling in those fish.
Save System (Items)
The Save System for items is in with the ability to save and load items into a local text file.
This is freely available to mess with and should be readable enough to edit, then just load the file back in (via the in-game Loadstone) and it'll replace your current items.
Puzzle Boards
The first Puzzle style challenge is available on the new continent, the rules are loose but iterations to come with different board layouts and goal requirements.

The Guide
Added to make it a little easier to find the new content and feel satisfied with completing goals. It's not a tutorial, but should let you know how you're progressing through the region.
Improvements
- Networking latency improvements to minimize lag/desync

Bugs
- I forgot to write them all down, but there was a bunch.