Hello, Sorry for some of the confusion here, I'll try to explain. (Apologies if this does not get linked back up correctly to the thread - Pony Mail does not let me login and the mailto: link generates a URL which is too long).
I did preemptively ask the contributors to add the Apache license boilerplate before final submission, so apologies for the confusion there. The original files as I recall either had the header or did not have any header. There was a short discussion on the Arrow dev@ list at [1] where we decided to go through the IP clearance process to make sure everything was clear, since when the PR was first submitted, it had been developed for a long time outside the community (with commits dating back to 2020, although the PR was submitted in 2022). I believe Abner submitted an ICLA. I will re-confirm with the authors (I can't appear to view this information myself on the Apache side). [1]: https://lists.apache.org/thread/xytqttpov1d3q9mhd6nrlz7xkl7q5zjp Hopefully this helps, David
