Sourced from checkout-sdk-node's releases.

3.3.0

Release 3.3.0 (#430)

This release improves multipart form-data handling in HTTP requests, specifically ensuring that FormData is properly serialized and sent in API calls. The changes fix a bug where the form-data instance was previously string-coerced (resulting in an invalid request body), and add comprehensive regression tests to prevent this issue from recurring.

HTTP request handling improvements:

• Added a formDataToBuffer utility to serialize FormData streams into a buffer, ensuring multipart bodies are transmitted correctly in HTTP requests.
• Updated the HTTP request logic to use the new buffer serialization for FormData, preventing accidental string coercion and ensuring the correct Content-Type and body format.
• Enhanced header generation to merge headers from FormData instances when present, ensuring the multipart boundary is set correctly.
• Imported Node's Writable stream to support the new buffer serialization logic.

Testing and regression coverage:

• Improved and expanded tests in test/files/files.js to verify that multipart requests include the correct fields and headers, and added a regression test for issue #418 to ensure the bug does not reoccur. [1] [2]

3.2.1

Release 3.2.1 (#428)

• fix(build): restore ESM output broken since v3.1.0 (#427)

3.2.0

Release 3.2.0 (#426)

New Features

• Account Updater API: New client for managing card account updates
• Identities API: Complete client with 6 submodules (AML screenings, applicants, face authentications, ID document verifications, identity verifications, delegation)
• Issuing API: Expanded with 10 new submodules (access, cardholders, cards, control groups, control profiles, controls, digital cards, disputes, simulate, transactions)
• Network Tokens API: New client for network token management
• Payment Methods API: New client for payment method operations

Improvements

• Error Handling: Enhanced error propagation for 401/403/404 responses with detailed error.body
• Code Organization: Refactored core modules (Checkout.js, Platforms, HTTP service) for better maintainability
• Test Suite: Reorganized 51+ test files with better separation between unit and integration tests
• Documentation: Improved JSDoc annotations with @​memberof tags, updated README with new architecture examples

Technical Details

• Reduced Checkout.js from ~200 lines to ~46 lines through modularization
• Split Platforms API into focused submodules (subentity, files, payment-instruments, payout-schedules, reserve-rules)
• Enhanced HTTP client with better response processing and error context
• Added TypeScript definitions for all new API clients
• Test coverage: 97.89% (818 tests passing)

All changes maintain backward compatibility.

3.1.0

... (truncated)

• 43b9d87 Release 3.3.0 (#430)
• e15375f Issue 418 - files.upload failure (#429)
• 6111b9e Release 3.2.1 (#428)
• d2b8cda fix(build): restore ESM output broken since v3.1.0 (#427)
• 9958802 Release 3.2.0 (#426)
• d22eb3a refactor: enhance API documentation and improve code organization (#425)
• 1c187d5 feat: add new api clients and improve docs (#423)
• c69473d Version 3.1.0 - New payments/setups client + merchant-specific DNS names Supp...
• cb5d9ac Feature/new endpoint payment setups (#419)
• 9d3d705 Merchant-specific DNS names Support for access (#421)
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