Apple today announced that developers can submit updated and new app submissions through App Store Connect during the holiday season.
Apple warns that app review may take longer between November 24 and November 28 as well as December 23 and December 27.
We are happy to accept submissions in AppStore Connect this year. Your apps should be up-to-date and ready to go for the busy season on the App Store. You should send urgent submissions as soon as possible due to the anticipated high volume. Review completion may take longer between November 24 and 28 and December 23 to 27, please note.
This is a significant change from years past, when App Store Connect did not accept submissions during holiday season.