For normal people

Ported to MC 1.21.9 and 1.21.10.
Made pseudo-erosion algorithm better.
Fixed end fractals spawning intersecting dragons's nest.
Fixed cuboctahedron end fractal structure sometimes spawning in a way that intersects terrain.
Fixed gaps in LOD transitions.
LODs will now display more blocks besides what generated as part of raw terrain.
- This only works for areas that you've explored.
- This also only works in singleplayer.
Fixed structures not spawning when world weaver was installed.
- This is a dependency of Better Nether and Better End, so they should work better now too.
Geodes in the overworld no longer spawn in or below the deep dark.
Mega dungeons should now choose a block palette that more accurately represents their depth.
Fixed shovels not being able to turn overgrown podzol into paths.

For data pack developers

Added config option to fail datapack validation when an overrider is not tagged properly.
Added config option to fail datapack validation when any tag contains an invalid entry.

For normal players:

Fixed log spam in pale gardens in the nether.
Fixed voidmetal armor not being enchantable.
Fixed mangrove trees grown from saplings not having mangrove propagules below any of the leaves.
Short grass (the kind from big globe, not vanilla) can now be composted.
Added ukrainian translation (provided by hyperix).
Updated chinese translations (provided by AstralArclight9001).
GL exceptions generated by other mods should no longer crash the game when Big Globe catches them.

For data pack developers:

Added tile grids, for anyone who wants to make their world repeat after a certain number of blocks.
Invalid block state properties in string literals are now a warning instead of an error.
Delegating structures can now provide max_radius_in_chunks to provide a hint to big globe about the maximum size of the structure being delegated to.
Invalid constant cast attempts are now caught at data pack validation time instead of at generation time.
- Invalid casts with ==. and related operators are no longer silently ignored.

Fix Sinytra Connector compatibility for like the 3rd time now. Note that this fix only affects MC 1.20.1. No other MC versions are affected, so Big Globe V5.0.6 is still latest for all other MC versions.