Yjsg 2.1.0 for Joomla 2.5.x and 3.x has been released. This version fixes few bugs and introduces new features. See detail changelog here.
To update to latest version you can use Joomla Extensions update manager or download the Yjsg Framework plugin version 2.1.0 and reinstall. To report bugs or submit feature request, please open an issue here or join us in Yjsg discussions forum.