According to developer release notes (often posted on ScriptSpot, CGSociety, or GitHub mirrors), v1.8.10 primarily addresses:
Automatically creates materials from loaded textures [1]. Material Texture Loader v1.8.10 for 3Ds Max 201...
: A new script integrated with the MTL API to browse and drag-and-drop assets directly into the viewport. UI & Preset Improvements According to developer release notes (often posted on