Possible Improvements to NEP 23 ?

[anirudh2290]

The NEP 23 is a good read to understand Numpy's backward compatibility policy.
Just listing a few possible improvements here.

• Resolution not listed, its not clear if it is accepted.
• Discussion missing. Two links that I found : Request: use semantic versioning #10156 ,
  http://numpy-discussion.10968.n7.nabble.com/backwards-compatibility-and-deprecation-policy-NEP-td45941i20.html , there is probably more.
• References and Footnotes missing.
• doesn't mention the guideline for using FutureWarning.

[rgommers]

Thanks @anirudh2290 for the suggestions. Note that that NEP gives a reasonable impression of our approach to backwards compatibility, however it was never accepted. I plan to come back to it in the next couple of months - finishing that up is a deliverable of the CZI grant we got last October.

[h-vetinari]

This was likely closed by #18097, though it's still missing the acceptance.

[rgommers]

Thanks @h-vetinari, I forgot about this one. I'll close it through the next PR which changes the status to accepted and adds the mailing list links.