v4 is a complete rebuild of the Concrete Framework for Shopify theme development. The framework is currently dependant on Slate v1 (beta), though is being developed with a view to less reliance on the Shopify development team.
If you are looking for the Slate v0 version, please see this branch.
Framework or boilerplate
Components will be liberated from the main framework where possible to offer a quickstart out-of-the-box, while still allowing developers to use their preferred libraries and own code instead.
The following libraries are included by default. They can easily be replaced with your own preferences. The framework and these libraries will be consistently updated with the intention of creating the most flexible and modular starting point possible.