I tried adding a version number to the file location in the JS tag:
<xf:js prod="myscript/myscript_min.js?v=1.1" dev="myscript/myscript.js?v=1.1" />
However, this rendered as:
<script src="/js/myscript/myscript_min.js?v=1.1&_v=04a5b62b"></script>
I noticed other scripts on the page seem...