I want to submit a run but the version I'm playing on doesn't exist in the options. I have uploaded my video to YouTube, the version being the latest 1.21.21, though nowhere to be found on the submission page.

you can choose "unsorted" in the version category, it won't affect the submission ​at all​

Fixed.

Thank you, I submitted it recently. Also just out of curiosity, when can I expect to get my run approved?

We aim for 3 weeks since submission date

Just checking in, it's been 3 weeks.

Thank you