This is a tracking issue for all the stuff that needs to be changed in order to update a platform to 1.17. For details, please see the Fabric platform, where all of this is discovered.

• Adjust tree types, needs some unwrapping logic
• Add getMinY implementation in all worlds, maybe to Clipboard as well, possibly remove clamping from Regions as well, maybe change default getMinY and getMaxY of AbstractWorld to min/max integer values.
• Redo TE sets as fromTag + markDirty, not setLocation + fromTag
• I'm sure there'll be more...

Any idea on how long it will be till WorldEdit support for 1.17 drops?

already did, see discord for dev builds

K.