HOLLOW SPIRAL v0.3.7 CHANGELOG

DAI 1.9.5 INTEGRATION
- Declared the datapack explicitly as the DAI MAIN experience via pack.mcmeta.
- Migrated new-world creation from the generic minecraft:flat preset to DAI 1.9.5 high-level world_type: void generation.
- Preserved the existing experience save_id so old expeditions continue to resolve correctly.
- Prepared the datapack namespace for stable companion resource-pack auto-management.
- Updated compatibility/readme metadata from DAI 1.9.1 to DAI 1.9.5.

COMPATIBILITY
- No v0.3.6 room-generation logic was removed or rewritten.
- Existing worlds do not have their dimension regenerated; the void preset affects newly created expeditions.
- Vanilla mob mode is intentionally retained.

HOLLOW SPIRAL v0.3.6 CHANGELOG

VERTICAL STAIRCASES
- Expanded the upper-room stair aperture by two additional rows, exposing two more descending steps for easier DOWN access.
- Restricted receiving-room carving to the protected +/-5 center so Ocean pressure walls at +/-6 are no longer deleted by UP staircase generation.
- Reduced the Ocean ceiling opening used by an upward staircase to the actual stair footprint instead of a broad glass cut.
- Removed the old upper-room apron that crossed the Ocean shaft wall.
- Existing vertical links receive a one-time v0.3.6 rebuild, including lazy repair when an unloaded room is revisited.

UP / DOWN CONTROLS
- Moved UP and DOWN onto two independent two-block pylons on the north edge of the protected central shaft.
- Stair generation can no longer erase the opposite vertical button or its support space.
- A vertical button is only present if that direction has not already been generated.
- Horizontal buttons are likewise only restored while their sealed iron door still exists.
- Opening any exit now removes the actual current button, preventing one button press from retriggering the same generation for several ticks.

CORAL GROTTO
- Removed the four giant block masses from the old Grotto layout.
- Added four reusable submerged structures: Coral Arch, Reef Shrine, Broken Pavilion and Sea Gate.
- Added reef spires, rubble, coral growth, fish and a Drowned while preserving one coherent flooded chamber.
- Existing Coral Grottos receive a one-time structural rebuild and pressure-shell restoration.

CASTLES
- Every Castle now rolls one defensive population: either one persistent Iron Golem or two named villager guards (Weaponsmith + Armorer).
- Existing Castles receive the defender roll once when updated/revisited.

PREVIOUS FIXES RETAINED
- Stable Fungal Bog basins.
- Smithery roof containment.
- Structural Flooded Ruins.
- Floor-is-lava Volcano traversal.
- Modular Tiny Villages and siege-damaged masonry Ruins.
