Support for Checkout API v2?

[sencia-dev]

We have an existing integration that uses this SDK to set up a ChargeRequest using an order reference ID and MWS auth token.

We received an email from Amazon Pay indicating we are using Checkout v1 which will be discontinued on March 31st, 2026.

Amazon says you can look at the endpoint URL to determine whether an integration uses API version 1 or 2, but despite downloading and walking through the SDK source code I can't find code that would generate URLs containing a v1 or v2:
https://developer.amazon.com/docs/amazon-pay-checkout/v1-check-api-version.html

I realize this is a long shot, but does anyone know if this SDK/integration will continue to function after Checkout v1 is discontinued? I know there is a new .NET SDK but I'd like to know if it's necessary before moving on from this tried-and-true library.

[shangamesh]

Hello
CV2 requires changes in both Frontend & Backend including payload for API's. The new SDK for Chsharp can be found here : https://github.com/amzn/amazon-pay-api-sdk-dotnet

Also sharing the CV2 integration guide : https://developer.amazon.com/docs/amazon-pay-checkout/introduction.html for your reference.