Update:
This time we're locking submissions the entire rating period so you must make sure your submission is good to go before the deadline ends. However, you can edit your submission before the submission deadline in case you submitted early but have a better version. There will be no exceptions, so make sure the game is what you want it to be!
We allowed it last time for a brief moment but this time there will not be any sort of grace period to update the game.
Note: This does not mean it's impossible to submit late. Late submission links should still work. There will still be our 12 hour grace period but once you submit you will be locked in and we won't allow you to change. We had some problems with this last time and it raised concerns about the fairness of the jam so we are being more strict about this.