jhollidayUpgrading from 3.0.4 to 3.1, I get "Version Discrepancy...We have detected that you are running a version outside the scope of this upgrade..."
After this, it shows that I am now running version 3.1, but that an operation is pending which must complete. From the dashboard, there is no JetPack plugin available, so I don't think I'm actually running version 3.1.
