The [NEP 029](https://numpy.org/neps/nep-0029-deprecation_policy) page has a note says: > This NEP is superseded by the scientific python ecosystem coordination guideline [SPEC 0 — Minimum Supported Versions](https://scientific-python.org/specs/spec-0000/). I haven't read SPEC 0 carefully, but I think we should migrate from NEP 029 to SPEC 0.