10-30-2019 17:11 PDT
Implementation Changes
- Add retry loop for fetching authentication token if any 'Internal Failure' occurs ([368](https://github.com/googleapis/google-auth-library-python/pull/368))
- Use cls parameter instead of class ([341](https://github.com/googleapis/google-auth-library-python/pull/341))
New Features
- Add support for `impersonated_credentials.Sign`, `IDToken` ([348](https://github.com/googleapis/google-auth-library-python/pull/348))
- Add downscoping to OAuth2 credentials ([309](https://github.com/googleapis/google-auth-library-python/pull/309))
Dependencies
- Update dependency cachetools to v3 ([357](https://github.com/googleapis/google-auth-library-python/pull/357))
- Update dependency rsa to v4 ([358](https://github.com/googleapis/google-auth-library-python/pull/358))
- Set an upper bound on dependencies version ([352](https://github.com/googleapis/google-auth-library-python/pull/352))
- Require a minimum version of setuptools ([322](https://github.com/googleapis/google-auth-library-python/pull/322))
Documentation
- Add busunkim96 as maintainer ([373](https://github.com/googleapis/google-auth-library-python/pull/373))
- Update user-guide.rst ([337](https://github.com/googleapis/google-auth-library-python/pull/337))
- Fix typo in jwt docs ([332](https://github.com/googleapis/google-auth-library-python/pull/332))
- Clarify which SA has Token Creator role ([330](https://github.com/googleapis/google-auth-library-python/pull/330))
Internal / Testing Changes
- Change 'name' to distribution name ([379](https://github.com/googleapis/google-auth-library-python/pull/379))
- Fix system tests, move to Kokoro ([372](https://github.com/googleapis/google-auth-library-python/pull/372))
- Blacken ([375](https://github.com/googleapis/google-auth-library-python/pull/375))
- Rename nox.py -> noxfile.py ([369](https://github.com/googleapis/google-auth-library-python/pull/369))
- Add initial renovate config ([356](https://github.com/googleapis/google-auth-library-python/pull/356))
- Use new pytest api to keep building with pytest 5 ([353](https://github.com/googleapis/google-auth-library-python/pull/353))