First release. Zen Cart v1.5.8 through v3.0.0, PHP 7.4 through 8.5. Install attribute_pricing_manager_v1.0.0.zip through Modules > Plugin Manager. Plugins Library: https://www.zen-cart.com/plugins/attribute-pricing-manager (Plugin ID 2258; the zip here has carried it since 2026-09-13, matching the Library's copy). Support thread: https://www.zen-cart.com/threads/207329?page=1#post-1347048