All styles have been updated for XenForo 1.5.20 There haven't been update to styles for a while because all previous versions of XenForo 1.5 were compatible with versions down to 1.5.14. However XenForo 1.5.20 contains several new features to add GDPR compliance to XenForo. Also there are some bug fixes. If you are running XenForo 1, consider updating to 1.5.20. Important: these styles are compatible only with XenForo 1.5. Styles will not work with XenForo 2. XenForo 2 is completely different software that requires complete rewrite of all styles and add-ons, therefore old styles and add-ons no longer work.