Quite a bit of content added since 0.54, so far so good.
I'm stuck in the Sunken Valley in 1.0.6. The only paths I found out are back where I came from (Backyard), or to the Crystal Lake at the lower-right (been there, beaten boss, doesn't seem to be an exit from there) or the Lower Access at the middle-left, which only features a destructible bridge I have nothing to destroy it with, and has no other exit. Please help!
Edit: NVM. I had missed something in the Research Facility. You have to use the Blackened Key with the door in the lower-right of the level.