Same for me, I used the prompted "Do you want to update to 3.0?" in the HX Edit rather that execute a downloaded upgrade from the website and only the firmware was updated.
To make the new update fully operational I had to download the 3.0 HXEdit update from the website, install it and then reboot the PC.
Now it works fine, and every new stuffs are available ont both HXEdit and Stomp.