Hey John!
Yep, just update to the latest version and you can continue exactly where you stopped (saves carry over automatically).
Hey John,
That is normal. That quest means you've done all main story content for the current version. Note: Not every patch will have a main story quest!
Here's the change log for 7.8, 7.9, & 7.10:
https://zanithone.itch.io/a-house-in-the-rift/devlog/767613/new-free-version-ava...
https://zanithone.itch.io/a-house-in-the-rift/devlog/784365/new-free-version-ava...
https://zanithone.itch.io/a-house-in-the-rift/devlog/802269/new-free-version-ava...
If you're looking for the change log of other versions, you can find em in various posts here: