Appendix
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Changelog

Changelog

Published FINCI guide and API reference releases.

Guide

1.2.0

Status: Current guide version

Released: August 4, 2026

What changed:

  • Webhook handling: added the 1.10 webhook events and clarified their existing retry and idempotency expectations
  • Security and operational controls: added handling guidance for verification codes

1.1.0

Status: Previous guide version

Released: April 10, 2026

What changed:

  • Issuing cards: expanded the Card creation prerequisites section
  • Issuing cards: clarified the setup sequence for person-based and company-based issuance
  • Issuing cards: added explanation of the account record and why it must exist before card creation
  • Issuing cards: clarified identifier usage across account setup and card creation, including digit-only account external_number
  • Authorization flow: clarified that the account entity still exists even where balance is not used as the approval control during webhook decisioning
  • Authorization flow: clarified authorization advice confirmation behavior and current success/error response handling

1.0.0

Status: Previous guide version

Released: Initial developer portal publication

What changed: First publication of the FINCI Card API developer portal guides.

API references

1.10.0

Status: Current published API reference version

Released: August 4, 2026

Includes: Card API, Webhook events

Added

  • added used_value to card-limit responses
  • added 3D Secure code, tokenization code, and tokenization event webhooks

Changed

  • replaced the previous 3D Secure webhook path in the 1.10 reference with the new upstream 3D Secure code path
  • corrected authorization rrn to a string identifier
  • carried forward the enriched operation descriptions, authorization webhook guidance, and Card API validation metadata

1.9.0

Status: Previous API reference version

Released: Initial developer portal publication

Includes: Card API, Webhook events

Added

  • published Card API reference in OpenAPI format
  • published Webhook events reference in OpenAPI format

Changed

  • API definitions migrated from Swagger to OpenAPI
  • improved published Card API validation metadata for key customer, address, card, phone, and account fields
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