[MC-240078] Chunk Load Glitch

I loaded a 1.17 world in 1.18 snapshot and i see chunk loading glitch and it also allows you to access void without needing to break bedrock. Its probably known but just want to make sure people know.

Linked issues

duplicates 1

MC-237927 In old worlds, old chunks below 0 are empty Resolved

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Comments 3

j_p_smith 2021-10-30T05:44:00Z

Did you open the world in any snapshots prior to 21w43a? This would have caused air to generate below y=0 in any explored chunks. If not, could you provide a copy of the 1.17 world from before it was upgraded?

Rafo 2021-11-01T16:55:04Z

It was 21w42a. Did they implement the 1.18 support of 1.17 or prior world before 21w43a?

j_p_smith 2021-11-01T18:27:54Z

Ah okay. In 21w39a to 21w42a older worlds could be opened, however everything below y=0 in existing chunks was filled with air (see MC-237927). Regarding the other issue you mentioned, smooth biome transitions between the old and new terrain weren't added until 21w43a (see MC-237935).