```
Several changes to np.insert and np.delete:
* Previously, negative indices and indices that pointed past the end of the array were simply ignored. Now, they will be treated like normal indexing treats them -- negative indices will wrap around, and out-of-bound indices will generate an error.
* Previously, boolean indices were treated as if they were integers (always referring to either the 0th or 1st item in the array). In the future, they will be treated as masks. In this release, they raise a FutureWarning warning of this coming change.
* [I don't really understand the last point, maybe give an example?]
```

Also, is the first point actually true? Or are we raising a FutureWarning for negative and zero indices, and will do the actual change later? (That would probably be best.)