Numpy does use semver.
Lots of people still complained about 2.0.
No, it does not: https://numpy.org/doc/stable/dev/depending_on_numpy.html.
> It is important to know that NumPy, like Python itself and most other well known scientific Python projects, does not use semantic versioning. Instead, backwards incompatible API changes require deprecation warnings for at least two releases.
alt Hacker News
No, it does not: https://numpy.org/doc/stable/dev/depending_on_numpy.html.
> It is important to know that NumPy, like Python itself and most other well known scientific Python projects, does not use semantic versioning. Instead, backwards incompatible API changes require deprecation warnings for at least two releases.