Release-Notes.md

Release notes

This article summarizes notable updates by version.

Applies to

• ShippingRates 3.x and later

4.0.4 (March 22, 2026)

Changed

• Improved FedEx error handling

Breaking changes

• None in this release

4.0.3 (March 7, 2026)

Added

• FedEx package type and pickup type support
• Cancellation token support in the rate request flow

Changed

• Updated HTTP client lifecycle usage to a rent/lease model
• Removed legacy address helper methods
• Internal refactoring for US address detection

Breaking changes

• None in this release

4.0.2 (March 4, 2026)

Changed

• Fixed FedEx client behavior when HttpClient was null on an internal code path

Breaking changes

• None in this release

4.0.0 (March 2, 2026)

Added

• FedEx REST API integration for modern Rate and Transit Time workflows
• OAuth 2.0 authentication for FedEx provider flows

Changed

• Documentation moved from wiki pages into the docs folder
• OAuth and nullable handling improvements across the codebase

Removed

• Legacy FedEx SOAP implementation

Breaking changes

• FedEx provider initialization changed to FedExProviderConfiguration with OAuth credentials
• See Breaking changes for migration steps

3.0.0 (December 7, 2025)

Added

• USPS REST API integration
• OAuth 2.0 support for USPS authentication

Removed

• Legacy USPS Web Tools integration

Breaking changes

• USPS initialization changed to UspsProviderConfiguration
• See Breaking changes for migration steps