Books updates

Customer Service

Pathfinder Adventure Path, Lost Omens, Pathfinder Accessories, Rulebook Subscriber

Hi folks

I got 3 emails informing me that some books were updated, which I think is nice. But looking at the Monsters of Myth I found it strange because only the version of File Per Chapter was updated. Is this expected?
Where do I can find a changelog or something about these updates?

Link for a print from the store

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