The following changes have been made in the EE 3.3 maintenance branch.
r53380: Muted all JQMIGRATE warning messages. Cleaned up and updated readme.txt file for jQuery.
r53382: Modified clone() method to redraw contents of
ICE-10037 canvas elements. Modified printer script to be able to display cloned canvas elements in staging div ( ICE-10037).
r53384: Updated jQuery and jQuery UI readme.txt files with information about the ported security fixes, as per