Python 3.7.10 and 3.6.13, the lastest security fix rollups for Python 3.7 and Python 3.6,are now available. You can find the release files, links to the changelogs, and more information here:
These releases are source code only; Windows and macOS binary installers are not provided for security fix releases.
Note that Python 3.9 is now the latest feature release series of Python 3. You should consider upgrading to 3.9 as soon as practical. Get the latest release of 3.9.x here.