Infinity Hype update question

Hi All,

I finished the game earlier in the year and loved it and thinking about playing through again now the update is here.

I have a question before I do though and I couldn't seem to find this info anywhere else and didn't want to read too deeply to avoid spoilers.

Is the content all after chapter 3 or is it sprinkled throughout? Are there changes to Chapter 3 or new bits that are accessed from there?

Thanks

All the additional content is reachable directly from the Chapter Select area, so technically you don't even need to clear any Chapter to access it.