I am enhancing my old rails app to be able to show as embedded app in Shopify Admin Panel, but the version of shopify_app gem is too low which is 9.0.4.
Therefore I am creating a new simple rails app to have the same shopify_app gem version to test at localhost which is show blank in admin panel.
but I tested that shopify_app gem version 21.10.0 is able to load its content on admin panel.
Therefore, I would like to know is there any lowest shopify_app gem version requirement for rails app to show as embedded in admin panel?