This build features the new Big World!
The new bigger world is twice the size of the previous world with more randomly positioned islands (no more fixed 5×5 grid).
The game will upgrade your existing world and save data to the new big world format. The upgrade is not destructive so you can roll back to the previous release and continue playing. The upgrade will backup your old save file and add a “_LEGACY” suffix to its file name. If you want to roll back you will just need to delete the newer upgraded save file and then remove the legacy suffix from your old save file. If something does go wrong during the upgrade process, please post a bug report so we can diagnose and fix the problem.