Two changes spotted so far ... having typed in an international tracking number it gets displayed with credit card spaces! It's 2 letters 9 numbers 2 letters and that is how it's read...
Second change is the TOTALLY alloying capture that is often impossible to answer where it appears on other sites ... at least that seems to be skipped if one logs in before checking, but why should one have to? I there must be a capture, then a simple text string is a lot easier to live with.