This time extension is just 2 hours, only to allow people that have missed the deadline because of timezone-related issues
Is it two hours? It looks like the jam is still open to me despite submissions closing 16 hours ago. I also would have fixed some things that people brought to my attention since then.
The jam is only open for people that were misled by June 2nd date and forgot to check the timezone.
Regarding game breaking updates, you can make them in the rating period.
