merchantmind

3.4.2+mc1.21.11

Minecraft and Fabric Port

• Ported Merchant Mind from the Minecraft 26.1.2 code line to Minecraft Java 1.21.11.
• Updated Minecraft and Fabric API dependency versions for 1.21.11.
• Updated Fabric menu, screen handler, networking, rendering, player-message, and GUI APIs for the 1.21.11 mappings.
• Updated the client screen constructor and background rendering signatures for Minecraft 1.21.11.
• Updated the extended screen handler/menu provider implementation for the 1.21.11 Fabric API.

Feature Parity

• Preserved the shop, trading, selling, restocking, reservation, payment, and combat systems from the previous implementation.
• Preserved the 15-minute reservation duration.
• Preserved protection against replacing a reserved listing during restock.
• Preserved Full Payment and Installment Payment.
• Preserved the installment slider limits based on the player's balance and the remaining item price.
• Preserved the payment confirmation overlay and full-payment delivery flow.
• Preserved the behavior that removes the listing only after the item has been fully paid for.

Build Compatibility

• Configured the source to compile as Java 21-compatible bytecode.
• Successfully compiled and built the mod with Java 21.
• Successfully compiled and built the mod with Java 25.
• The Java 25 build still targets Java 21 bytecode, so both builds are intended to run on Java 21 or newer.

Version

• Updated the mod version for the 1.21.11 port from the 3.4.1 line to 3.4.2+mc1.21.11.
• The 1.21.11 build is separate from the 3.4.9+mc26.1.2 build and must only be installed on Minecraft 1.21.11.