Thank you all for using this small addition to jquery ecosystem.
In version 1.0.0 was fixed a bug which lived from the first version and which sometimes prevented events to be triggered in a time.
Sad to say but API endured a required change and now you must specify progress and uploadProgress callbacks as options to $.ajax. Unfortunately it also makes to use $.ajax instead of short $.post or $.get, but there are reasons. I think that's not a big change, and in exchange I hope it eloquently expresses intentions.
BREAKING CHANGE
.progress and .uploadProgress methods moved to $.ajax's options
jquery became peer dependency and it's version increased to ^3.0.0