Challenges 3.1.2 needs Paper, Purpur or Canvas on Minecraft 26.3.

New

• Interval = Warden is out of beta: in a set interval, a warden digs its way out of the ground at every player

Fixes

• Level = Border in the Nether: the border is now shown around the spot where you come out of the portal. Before, it was drawn far away and you seemed to stand outside it.
• A border that sits on the world spawn now moves along when the spawn is changed, for example with /setworldspawn. Before, players still saw it at the old spawn and took damage once the timer started.