When you teleport to coordinates that are to large (> 2,999,999) you get:
Format error: The number you have entered (%.2f) is too big, it must be at most %.2f
In 1.3, the %.2f's showed 30,000,000 as the max.
MC-507
Teleporting to Large Numbers Creates a Broken Error
Resolved
Fixed
2
Ezekiel
(Unassigned)
Confirmed
teleport
Minecraft 1.4.2, Minecraft 1.4.6, Minecraft 1.4.7, Snapshot 13w02a, Snapshot 13w02b, Minecraft 1.5, Snapshot 13w11a, Minecraft 1.5.1, Snapshot 13w17a
Snapshot 13w21a
Retrieved
Another issue is if you tp to a really high y coordinate you'll get kicked for "Illegal Stance" and be unable to enter the world again. Previously it was limited to 265.