LOD Server Support

New Features

• Rejoins stop re-downloading and re-checking terrain you already have — the server no longer re-sends unchanged terrain to returning players (works with any client version), and with client and server both on v0.12.0 cached terrain is verified in seconds instead of minutes.
• Xaero's World Map fills in beyond render distance (opt-in) — with Xaero's World Map installed on the client, turn on the new "Write LODs to Xaero's Map" toggle and downloaded LOD terrain is drawn into the map (works even without Voxy).
• Lower client memory use — terrain tracking takes roughly 6-10× less memory at the default LOD distance, with fewer hitches when teleporting or switching dimensions.

Bug Fixes

• LOD downloads no longer stay slow for a whole session on fast connections — the join speed ramp now completes within about 40 seconds of joining (client-side, works against any server version).
• Fabric: replacing the mod jar under a running server no longer risks an unclean shutdown and a lost final world save.

Compatibility

• Mixed client/server versions remain fully compatible in both directions; this line (including the NeoForge build) is supported at the best-effort tier, with no features cut in this release.
• NeoForge clients get every client-side feature too; the Xaero map bridge there is enabled with enableXaeroMapBridge in lss-client-config.json (NeoForge has no in-game toggle).

Full Changelog: https://github.com/VoX/lod-server-support/compare/v0.11.1+mc1.21.1...v0.12.0+mc1.21.1