Super Mario Odyssey got a number of bug fixes and new features with Version 1.2.0, but even with patch notes, Nintendo snuck some other content into the game that they haven't mentioned. One of those tidbits is a change to the 100% ending. It's a slight difference, but a notable one nonetheless. If you don't mind a spoiler, hit up the link to see the change.
Notice an addition to the scene? With the 1.2.0 update, Nintendo has added Luigi to the 100% completion artwork. Nice to see him join the gang!