Clarification: These papers are different enough that I don’t feel like I double dipped by posting both in HN, also the new pub is ... well, new. (Also, thank you for reminding me that I need to update the arXiv entry since it’s not been published!)
Not saying there was any double-dipping. Only pointing others to related discussion. (I myself added copies of both papers to my Zotero library—which isn't something I would have done if I thought they were duplicates.)