You can select our public-beta branch via Steam. Releases on our public-beta branch are mainly for testing purposes and the build can be unstable.
1. Right clicking Fishing: Barents Sea from your game library.
2. Select Properties
3. Select Beta tab.
In drop-down menu, you select beta - Beta branch.
Now Steam will download a beta version of the game.
NOTE: Please be aware that these builds released on the public beta-branch are still in development!