It's there. It the last question on this page: https://itch.io/jam/gamedevtv-jam-2024

Q: Can I edit my game once I submit?

You can fix game breaking bugs in your submission and upload those. If your game is unpleasant or unplayable due to technical issues, we want you to fix those! You just cant add new features or gameplay. or things like that.

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You had me worried, I thought I paraphrased. 😊

I usually try to quote.