Infinite Abyss

1.4.3 Changelog:

Fixed portals, blocks and structures generating above bedrock in all the Infinite Abyss dimensions, not just a few this time. (Also improves compatibility with Immersive Portals as there won't be any overlapping parts now)

Also increased the spawn rates of the prismarine structure where you get the summoning bell by 10x since it was a huge pain to find.