Using Online Store 2.0 (OS 2.0)
Online Store 2.0 (or OS 2.0) themes take advantage of additional Shopify platform features. The new features are native to Shopify, and not unique to our themes, so if you have any questions about these you can contact Shopify here.
Shopify OS 2.0 support documentation
Here are Shopify’s help pages for the new admin, filters, templates, sections and metafields: