ChainTrain 0.3.0 beta — Paper 26.3

This release supports both ordinary and experimental minecart physics automatically.

• Couple up to five carts using iron chains, with one chain consumed per successful connection.
• Drive from the front cart on powered rails without a furnace cart.
• Stop the entire train when its driver leaves the front cart.
• Show vanilla iron-chain models between coupled carts, with no client mod or resource pack.
• Save couplings across server restarts and recover the original native physics when carts are detached.

Requirements: Paper for Minecraft 26.3, Java 25. No additional plugin dependencies. Other Minecraft versions and server implementations are not claimed as supported.

Validation: 17 automated tests; 1,935 experimental-world checks and 1,759 ordinary-world checks on Paper 26.3-169-46d4834. Server test drivers were artificial players; real-client gameplay and smoothness remain unverified. This is a beta release.

Install or upgrade: stop the server; remove older ChainTrain JARs from plugins; preserve plugins/ChainTrain; add ChainTrain-0.3.0-paper26.3-beta.jar; start the server.

Maintained by vladnow, licensed under MIT. Code and documentation were largely AI-generated and validated with automated and real-server checks.