Stencil improves the overall storefront experience for merchants and their customers. With enhancements in speed, security, and updates to your themes, this modern framework provides a more streamlined process for the everyday maintenance and tasks required to run a store.
Stencil themes are built on non-proprietary, open-source code to provide easier adoption and adaptation while providing greater flexibility and access for customization. In comparison, Blueprint, is built on a rigid, proprietary codebase, making it difficult to tailor and extend theme functionality.
For more information on the enhanced capabilities of Stencil, see the Stencil vs. Legacy Blueprint page.