v1.21.3

Bug Fixes

• fix expiry for to_json() (#589) (d0e0aba), closes /github.com/googleapis/oauth2client/blob/master/oauth2client/client.py#L55

v1.21.2

Bug Fixes

• migrate signBlob to iamcredentials.googleapis.com (#600) (694d83f)

v1.21.1

Bug Fixes

• dummy commit to trigger a auto release (#597) (d32f7df)

v1.21.0

Features

• add GOOGLE_API_USE_CLIENT_CERTIFICATE support (#592) (c0c995f)

v1.20.1

Bug Fixes

• reduce refresh clock skew to 10 seconds (#581) (42321ba)
• set Content-Type header in the request to signBlob API to avoid Invalid JSON payload error (#439) (20f82e2)

v1.20.0

Features

• Add debug logging that can help with diagnosing auth lib. path (#473) (ecd88d4)
• Show the transport exception that happened for GCE Metadata (#474) (23919bb)
• packaging: add support for Python 3.8 (#569) (1aad54a), closes #568

v1.19.2

Bug fixes

• Revert "fix: migrate signBlob to iamcredentials.googleapis.com" (#563) (a48b5b)

v1.19.1

Bug Fixes

• don't add empty quota project (#560) (ab2be5d)

v1.19.0

Features

• add quota project to base credentials class (#546) (3dda7b2)
• check 'iss' in verify_oauth2_token (#500) (c05b8b5)

Bug Fixes

• migrate signBlob to iamcredentials.googleapis.com (#553) (038ae1b)

Documentation

• remove 3.4 from supported versions list (#549) (8c84d0f)

v1.18.0

Features

• make load_credentials_from_file a public method (#530) (15d5fa9)

Bug Fixes

• no warning if quota_project_id is given (#537) (f30b45a)