v 1.00 (April, 18 2024)
UPS (OAuth 2.0)
UPS has deprecated access key authentication in favor of an OAuth 2.0 security model for all APIs. Beginning June 3, 2024, access keys will no longer be supported for authentication to any UPS APIs. After this date, all integrations must utilize the OAuth 2.0 authentication model to continue to transact with UPS APIs.