I talked to KingB and he replied this...i didnt tried it yet but he gave instructions how to figure out whats updated in ingame changelog and WT.
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7 Min.
Each update covers many number of branches that are impossible to track down all and mark. In the game, in 'About the game' menu, there's changelog. It shows which scenes were updated on each update. Each big box in the walkthrough is a scene with the scene number on right top corner. That way you can see which main paths were updated.