Nintendo announced a new version 1.2.0 update coming to Super Smash Bros. Ultimate next week. While Nintendo is mum on the details for what the update will bring, the company is advising players save their replay data before the update goes live.
According to Nintendo the replays made in the old version of Super Smash Bros. Ultimate will be unplayable once Smash Bros. Ultimate is updated to 1.2.0, but the old files can be saved locally and played that way.
Super Smash Bros. Ultimate Version 1.2.0 will be distributed by next week. Once you update, you will not be able to watch replays. To save them, please convert them to video. Patch notes will be released when the update goes live. pic.twitter.com/YhWuFKvJbM— Super Smash Bros Ultimate News (@SSBUNews) December 12, 2018
All you have to do is go to the Vault settings in Smash Bros. Ultimate, then "Replay" to "Replay Data" and then finally "Convert to Video". This should save your data locally and safe from the upcoming update.
No word yet on what's coming with the update, but it must be something if old versions of files won't work with the new version. Update 1.1.0 added a new difficulty level in Adventure Mode, so another new feature could be in the cards. There might also be balance changes and network fixes, though again, we won't know until the full notes come out.