Kind of a dumb question, but I'd like to release a patch for my game even though it's past the deadline. Is it legal for me to do that or should I just wait? Or could I release it as a separate download from the original version?
This jam doesn't lock your uploads so you're free to do what you want. If you do create a new build outside the scope of the jam I recommend you label the files and leave the old builds around during the voting period so people can still access them.