Bug#963817: Breaks?

[Rebecca N. Palmer]

On 29/06/2020 20:59, Paul Gevers wrote:
> Does this mean that numpy should add a Breaks relation on the old pandas
> version to avoid upgrading numpy but not pandas on user systems?

Not really - the constant was replaced by its value, so the only 
1.19-related change outside of tests is the reworded error message

-        raise ValueError("Must pass 2-d input")
+        raise ValueError("Plain DataFrames must be 2-d - for higher 
dimensions use MultiIndex or the python3-xarray package.  If you are 
trying to create a nested DataFrame (which is not recommended) see 
https://github.com/pandas-dev/pandas/issues/32289")

and upstream aren't planning that much of a notice:
https://github.com/pandas-dev/pandas/pull/34991/files