We are upgrading the Python version used in Fusion 360 to 3.7.3 in the September release.
It could mostly impact add-ins written in Python where the version of Python used to compile the source code to a *.pyc file has been locked down.
If that is the case then please test your add-in once the September release is out, and in case of any problems, recompile your add-in with the 3.7.3 version of Python and upload the new version of your add-in to the App Store.
It might be a good idea to check your add-in even if your Python source code is not compiled.
We are also going to replace the editor from Spyder to VSCode in this release.
If you've done any web development, you might be quite familiar with it already - and hopefully, you like it as well :)