currently holding off on the update, but check your python version
import sys
sys.version_info
Out[9]: sys.version_info(major=3, minor=6, micro=5, releaselevel='final', serial=0)
3.6.6 was minor and I doubt that 3.7 was updated.
You can search the "pinned" file (in C:\You_install_directory\bin\Python\res) to see if the dependency changed, but I doubt python is the issue