I don't have an older part in hand to verify if this might be a new mold.
If someone could please confirm that there are no major differences between the
existing entry and what I found, then please add the Alternate number to it.
[...] For Duplo parts we are hard pressed to make a disctinction between molds unless there is a very significant functional impact. I will go ahead and add the new number. [...] (21 months ago, Aug 31, 2022, to Catalog Requests)