> We have some doc on the differences between 3.8 and 3.9 uploads here:
>
> http://wiki.orbeon.com/forms/doc/developer-guide/xforms-controls/upload-con
> trol#TOC-With-Orbeon-Forms-3.9
>
> 3.9 no longer dispatches xforms-select, as  the upload now starts
> automatically. We could have kept xforms-select, but then with existing
> code that would trigger the "fake" submission hack used in 3.8, and that
> in turn could cause issues. So we decided instead to not dispatch
> xforms-select anymore, and to use new events to clearly indicate the start
> and end of an upload.
>
> It is unfortunate that a code change is needed, but the upload
> implementation was changed in quite a major way and we are not sure a
> backward-compatible solution is possible (ideas welcome).