M2.9 stable: https://moodle.org/plugins/pluginversion.php?id=9756
M3.0 release candidate: https://moodle.org/plugins/pluginversion.php?id=9757
Both versions add an improved 'responsive' feature that supports Bootstrap 2.3.2 at the suggestion of Michael de Raadt. If you are using older themes then there is a new setting in the Site administration -> Plugins -> Collapsed Topics area:
If you are using a Bootstrap V3 based theme then I will be releasing a new version of Shoehorn soon and I've already informed Bas about the functionality for Bootstrap and Elegance themes.