It’s been a while since the last patch, but this one is a little larger than the last few patches. The main fix in this patch is that netplay should at least mostly work now. Also, no, the next patch is not 2.2, it’s 2.1.10. Don’t even get us started.

• The netcode is dramatically more stable, especially when new players are joining. This of course doesn’t mean it’s perfect, but it should be much better than before.
• Late joiners in Special Stages in Co-op now spectate until the end of the map instead of interfering with other players and/or exiting the map early.
• Many bugs in the engine and level design that were reported on the forums were fixed.
• Egg Rock Zone 3 now supports the Competition and Race game modes.
• Lots of new functionality has been added to Lua scripting for use in modifications. Additions include (but are not limited to):
  • Hooks for player skin abilities and multiplayer chat events.
  • Custom map header options.
  • Many sorely-needed functions in the game’s code were opened up for use in Lua.