I opened this world on every snapshot and there always been air pockets since they appeard. And on pre1 they are still there!
MC-130784
Air pockets are still here
Resolved
Works As Intended
2
user-39d6c
(Unassigned)
Unconfirmed
Minecraft 1.13-pre1
Retrieved
It's not possible to fix if you already opened your world in an affected version. This was fixed to not happen in the future.