Migration topics for v7.1:
#19913 Strings containing ':' does not get translated when ISO-8859-1 encoding checkbox is checked while uploading the locale file.
#19788 Long names of uploaded attachments causes submission failure  
Old and New Submission Views - in-house can turn off the old view - see bottom of spec
Up to 5 fields on this tab be marked with an asterisk - indicating that these will be key fields for that form/flow to in the legacy view.