StrapPress has been updated to the latest version of Bootstrap which is currently 3.3.6. We have also updated the theme to use the latest version of Font Awesome.
If you are interesting in learning how to build WordPress themes like StrapPress, check out BootstrapWP.com. There you will learn how to integrate Bootstrap into WordPress themes and use all the Bootstrap features and components.
When Bootstrap 4 is out of beta, we will be build a Bootstrap 4 WordPress theme! Stay tuned.