- `move_exp_nanstd`
- `move_exp_nanvar`
- `move_exp_nancorr`
- `move_exp_nancov`
Because functions can now take more than one array, the signature of the moving exponential functions has changed slightly to require `alpha` to be a keyword argument. This is technically a breaking change, though most consumers will be passing `alpha` as a kwarg already (xarray included).