Super Smash Bros Ultimate will be upgrading to version 4.0.0 this week, but replays recorded before version 3.1.0 won’t be compatible with the new update.

Nintendo of Europe announced the news on Twitter, posting “#SmashBrosUltimate replays created in versions before 3.1.0 are not compatible with 4.0.0, which releases within 7 days.

“If you have replays you want to keep, you’ll need to convert them by going to Vault -> Replays -> Replay Data -> Convert to Video before updating the software.”