[pfg_]

Snapshots do let you upgrade worlds to future releases and you don't need to do any NBT editing, just upgrade the game and load the world.

[creatonez]

Huh, I guess I assumed that based on the behavior of most of the experimental flags offered on world creation. Has that always been the case?

I think mojang is taking a turn away from experimental feature flags these days, so I guess this situation will get better over time.

[nkrisc]

Though there are of course no guarantees there won’t be problems with the world.