[scikit-learn] Model trained in 0.17 gives entirely different results in 0.15

[Andreas Mueller]

On 08/03/2016 03:16 PM, Matthieu Brucher wrote:
> More often than not, forward compatiblity is not possible. I don't 
> think there are lots of companies doing so, as even backward 
> compatibility is tricky to achieve.
> Even with serializing the version, if the previous version doesn't 
> know about the additional data structures that have an impact on the 
> model, you are screwed. I don't think there is anything you can expect 
> for forward compatibility...
I think you can expect an error message instead of undefined behavior, 
though ;)