Build 17278206 seems to be a relatively recent build, but I couldn't find any official patch notes or release information from the developers. However, I can try to provide some general insights and features that are likely to be present in this build.
The most notorious issue before Build 17278206 was the "water desync" problem, where water would visually behave differently from its actual mechanical effect. Build 17278206 completely refactors the . Timberborn Build 17278206