Shopify 2.0 also known as Online Store 2.0 marks an end-to-end overhaul of how themes are built at Shopify. With sections on every page, app-powered blocks, flexible data storage, and robust developer tools, the process of building a theme on Shopify is easier than ever before.
Drag and Drop capability has been added so that users would not need to edit code in order to add campaign widgets manually to their pages. Access to this feature requires the Shopify Store’s Theme to be updated or replaced with a theme that supports Shopify 2.0 capabilities.
To learn more go to: https://shopify.dev/themes/os20