Watch the video:
Timestamps:
0:00 - Explanation
0:37 - Try to rejoin
0:49 - Restart game
1:14 - Verify game files
1:33 - Delete corrupt file & Verify
Trying to play New World but finding yourself in a situation where you have an “Unknown file version”? Well, this video shows you all you need to know about fixing this issue and connecting to play on your favourite world once again. By the end, the game should be working as normal.