Rusty Java 1.4.0-beta.1 - Fabric and NeoForge

Rusty Java 1.4.0-beta.1 — Schematic Builder

Fabric and NeoForge for Minecraft 26.3 / Java 25.

Build Planner gains a native OS file chooser, bounded modern schematic import, exact-state preview, origin/rotation/mirror controls, a copyable materials list, ordinary walking/inventory-sourcing construction and two-corner states-only .schem export. Loading never starts construction. Slabs/layers and coupled blocks use normal item semantics, normal published view and received exact-state settlement.

Manual input, menus, damage, health/food thresholds, corrections and scope changes stop construction without automatic restart. Unsupported, occupied or inaccessible work remains explicit; no demolition, flight, reach extension or unrequested scaffolding is added. Entity/block-entity payloads are not reconstructed.

Construction result / details separates initial matches, newly completed cells, placement actions and final leftovers. Relevant terrain and cache changes invalidate unfinished verification; persistent churn stays unverified. Build permission is checked at Start and throughout the run. Cancellation remains responsive at the save-commit boundary, and stopped readback cannot restart construction.

Multiplayer restricted construction retains explicit current-server view + movement + assistance permission requirements. The server controls inventory, movement and placement. The bounded planner cannot promise every possible structure or invulnerability.

Schematic guide · Java validation · Horizon native. Install only the jar for the selected Java loader; Horizon uses the separate native package. Required licenses remain embedded.