WPHelpDesk 1.2.4 was just released and you should be now able to download it using automatic updates, or directly from client panel.
This version has two major updates and a couple of bug fixes and tiny tweaks, lets start with major changes.
Until now WPHD had responsive design in the frontend templates, now responsivness was added to wp-admin templates as well, so as an admin you can easily reply to tickets directly from your mobile device.
Each user has a different working style, one wants to go to next ticket after adding reply the other wants go back to tickets list. In order to allow users to customize their WPHD experience we introduced Default Actions, each user in his profile can select what should happen after replying to ticket
Additionally this setting can be overwritten on per ticket basis when sending a reply