Every so often, even when Hitifilm 3 is not running, a popup appears asking me to upgrade. I already have the latest version of Hitfilm 3 and Hitfilm Plugins
I'm using OSX 10.9.5. 3.06 Ghz Intel Core 2 Duo. 16 GB 1067 DDR3 Ram on an IMac 21.5-inch, Late 2009. I am also running Adobe Creative Cloud, specifically using the Hitfilm plugins on Premiere Pro CC 2014
The only way that I can reproduce this is by having Premiere Pro or Hitfilm 3 active.