WorldFinder 0.2.0 - Changelog

WorldFinder 0.2.0 is a complete rewrite of the mod, built as a new and independent foundation for the project.

Why WorldFinder was rebuilt

The previous codebase was no longer suitable for the long-term direction of WorldFinder. The mod was therefore restarted from scratch around a shared architecture that can be maintained across Minecraft versions and mod loaders.

The new seed-map engine was developed independently for WorldFinder and does not use another seed-map mod as its technical foundation.

This clearer open-source foundation makes future maintenance, version support, and community addons more reliable and easier to manage.

Main changes

• Introduced PixelBiomes, WorldFinder's own biome-map engine.
• Rebuilt the seed map for the Overworld, Nether, and End.
• Added progressive background generation and bounded caches for a smoother interface.
• Added dedicated world-generation profiles so compatible Minecraft versions can share the same engine without duplicating the entire mod.
• WorldFinder 0.2.0 targets the following Minecraft versions on Fabric and NeoForge:
  • Minecraft 1.21.1
  • Minecraft 1.21.5
  • Minecraft 1.21.11
  • Minecraft 26.1 through 26.1.2
  • Minecraft 26.2
• Added Overworld vertical biome views for Underground, Surface, and Highlight.
• Reworked biome and structure filters, including multiple selections and clearer reset controls.
• Improved biome highlighting, including Pale Garden and the 26.2 Sulfur Caves profile.
• Improved structure discovery and progressive marker display across all dimensions.
• Restored singleplayer seed detection and session-safe manual seed memory.
• Expanded the map area, simplified the interface, and limited the maximum zoom to a useful range.
• Restored optional waypoint support for JourneyMap, Xaero's Map, and FTB Chunks where compatible. An incompatible optional map integration no longer prevents WorldFinder from starting.
• Added a public addon API and a reusable Core for compatibility with custom world-generation mods.

Important notes before updating

• WorldFinder 0.2.0 is a full rewrite. Map and session state from previous WorldFinder versions is not migrated, although a custom key binding saved in Minecraft's Controls menu is preserved.
• No manual cache cleanup is required. WorldFinder rebuilds its caches automatically and keeps them separated by Minecraft version, seed, connection, dimension, and world-generation profile.
• WorldFinder is client-side and does not need to be installed on the server. Automatic seed detection is available for supported vanilla singleplayer worlds; multiplayer and unsupported world-generation setups require a manual seed or a compatible addon.
• Some exact structure filters require information that is only available in supported local worlds. They may be unavailable on remote servers or unsupported world-generation profiles rather than returning inaccurate markers.
• Waypoint providers depend on the installed Minecraft version, mod loader, and compatible map-mod API. An unavailable provider is disabled without preventing WorldFinder from starting.
• The addon API documentation and a buildable example are included in ADDON_API.md and examples/worldgen-addon.

Open-source addon foundation

WorldFinder is now designed so other developers can add support for custom biomes, structures, and world-generation systems without replacing the main map engine. The public API separates addons from Minecraft-version-specific internals and allows unsupported requests to fail safely instead of returning misleading results.

This release is the foundation for future WorldFinder versions and compatibility addons. The goal is not only broader version support, but a stable project that can evolve without duplicating the same implementation for every Minecraft release.