1.21.3 not in the version dropdown menu

[RedNael768]

The newest patch said version 1.21.3 was now available, along with the new pale garden biome, but 1.21.3 is not an option in the dropdown menu for choosing your version, and the pale garden biome was greyed out

[vanvac]

open cubiomes viewers and under edit --> Advanced World Settings --> and check the experimentally supported versions checkbox then click ok now under the version dropdown 1.21.3 should be there