Apple today informed developers that App Store review times could increase as the 25th approaches, with Apple recommending that developers start getting their apps and games up to date and ready for the season.
There was a time where Apple would shut down App Store Connect entirely during the week of Christmas and not accept new app or app review submissions at all, but reviews now continue throughout the holiday.
Apple says that it is anticipating a high volume of app submissions, and reviews could take longer to complete between December 20 and December 26. Developers should submit time-sensitive submissions early to ensure they get through review in time.
Read more at MacRumors.com