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Changelog

What changed in the API, the SDK and these docs.

Verified 1 November 2026

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1 November 2026

  • API. POST /v1/payment_intents/search finds a payment by an email address, the last four digits of the card or a bank reference. It is a POST so that what you search for is never in a URL.
  • API. GET /v1/application_fees and POST /v1/application_fees/:id/refunds, for a platform's own fees. refund_application_fee on a refund returns the fee's share of that refund. New events: application_fee.created and application_fee.refunded.
  • API. A platform making a payment as a connected account can set application_fee_amount, on the payment or at capture. It moves when the payment does, and becomes available when the payment does.
  • API. Every event now has account, the account it happened on. Webhook endpoints can be created with connect: true to receive your connected accounts' events, in the endpoint's own mode only. New event types: capability.updated and account.application.rejected.
  • API. A platform's test key reading one of its real connected accounts now gets null for live_enabled, capabilities, details_submitted, application_status, requirements, metadata, business_profile.mcc and business_profile.support_email, and no reason on platform_rejection. A test key reads test-mode information only, so check for null before reading these. charges_enabled is unchanged and still answers for test mode. A live key reads the account as before.
  • Docs. Five tabs and a new home page. The Introduction is now at /developers, and links to its old sections still arrive.
  • Docs. Every page is available as Markdown: add .md to its address, or send Accept: text/markdown. llms.txt lists them all.

31 October 2026

  • SDK 0.2.1. Adds isRefundNotYetPossible to the error class, and the test cards the bank's sandbox uses today.
  • SDK 0.2.0. Covers every call these docs show; the first release had only twelve of them. Types now reach Deno without a @deno-types line.

21 September 2026

  • SDK 0.1.0. The first release of @secureprocessing/node.
  • API version 2026-09-01. The first version of the API, and the current one.