Full notes
Full The Backworld update
Read the full published notes in a cleaner layout. The original post stays linked below.
What changed
- Gameplay
The Backworld changes
Minor bug fixes.
Added two portals that lead back to previous areas before the Slime fight. In case you didn't explore much and find items, you can easily backtrack now to find some. Also added a few more items in those previous areas.
Added three portals in the same place that lead to some tiny areas that hint at future enemies / dungeons in the game. They also give you some extra items / exp, just to make sure you are strong enough to beat the Slime. (might have some new bugs in these areas)
You should be able to just load your old save and find them.
Source
Changelog.gg summarizes and formats this update. How we read updates.