Hi Joshua:
https://www.outsystems.com/forums/discussion/26819/integrate-plugin-for-a-recent-jquery-version/
You can also look how the jQueryGoodies component in the forge is implemented. it adds jQuery 1.8.x (not sure what version) when the "1.4.2 OS" version is selected.
Note that it appears jQuery UI doesn't work with OutSystems.
Specifically, I now know after hours of trying that the jQuery UI dialog box wont work if you want to put fields in it... all text fields remain blank.