This specific string is the . It is often seen in:
Temporary seasonal items like Christmas trees and lights were added to the backyard. Technical Meaning of "[v1.1.0.3970]" Grounded [v1.1.0.3970]
Added the Chimney, Spiral Staircases, and half-walls for more creative base designs. This specific string is the
Located in the bottom corner to help players identify their current version for multiplayer compatibility. Grounded [v1.1.0.3970]
If you are looking for specific fixes in this exact build (3970), it was a minor "hotfix" aimed at stabilizing the 1.1 update, resolving issues with base building physics and multiplayer connectivity.
Used by developers to pinpoint exactly which code branch was running during a game error.
Ensures that older save files are converted or loaded correctly into the updated game engine.