Where do I check details of pytorch version update details

I was using pytorch 1.0 and after I update it to 1.3.1, my model’s performance became worse.
I want to check if some functions have been updated drastically. I checked pytorch website but it is hard for me to find out the summary of updates. Is there a page shows things that updated for each version?
I found migration guide but it only shows very big updates (0.4 --> 1.0).


You can check all the details of the different releases on the github page: https://github.com/pytorch/pytorch/releases