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SDKRelease
Initial public Checkout SDK

Integration surfaces

  • ESM npm package: @lynqpay/checkout-sdk
  • Version-pinned IIFE bundle for classic script-tag integrations
  • Hosted Checkout mount, unmount, destroy, readiness, validation, result, and error APIs
  • Internal Card authentication and wallet redirect handling

Developer experience

  • TypeScript declarations and TSDoc for all public APIs
  • Browser-only safeguard for server-rendered applications
  • Stable error codes with retry guidance
  • No source maps in the published package

Upgrade policy

Pin an exact SDK version in production. Before upgrading:
  1. Read the release notes for behavioural or type changes.
  2. Update the version in Test mode.
  3. Run the integration test plan.
  4. Deploy the tested version to production.
Patch releases fix compatible defects, minor releases add compatible features, and major releases may require integration changes.
Last modified on August 8, 2026