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Well, you can go into the settings, find the "skip" section and enable everything, then fast forward through the game.

 You'll still have to select choices and manually navigate a few sections, but you'll get through hours of gameplay in minutes. For certain riddles, you can just get the solution from the walkthrough.

That's probably the fastest way to catch up. Personally, I'd just replay the game though. There's always some details I forget between updates.