R4.1.1-UME.2 — Minecraft 26.3 support
Updated native 26.3 adapters and rendering/animation code, corrected the Java 26.3 entity shader, and refreshed the editable source and patch build. Tested on Paper 26.3 with a real Java client. Includes installation instructions, screenshots and a detailed validation report. Back up your server and regenerate/merge the resource pack before upgrading.