From Minecraft Wiki
May 22, 2014
- 1 issue fixed
- From the previous development version
- MC-55627 –
Hopper: java.lang.IllegalArgumentException: Duplicate id value for 3!
- 14w21b was previously removed from the launcher for some time, but was added back in September 2018.
Retrieved from "https://minecraft.gamepedia.com/index.php?title=14w21b&oldid=1376174"