generated: '2026-07-24'
method: searched
source: https://docs.getpinch.com.au/docs/versioning
scheme: named-versions (date-style, pinch-version header)
current_version: '2020.1'
detail: >-
  Pinch does not publish a dated running changelog; its version history is the change
  record, exposed through the pinch-version header and the API Versions doc. Recent
  documentation-level additions (AI surface, guides) are not individually dated by Pinch.
entries:
- version: '2020.1'
  status: latest
  breaking: true
  highlights:
  - Introduced nonce-based replay protection on payments and refunds (idempotency contract).
- version: '2019.1'
  status: supported
  breaking: true
  highlights:
  - Updated Merchant endpoints to add/retrieve company and primary-contact information.
  - Brought Merchants and Managed Merchants into line with the same properties.
- version: '2017.2'
  status: obsolete
  breaking: true
  highlights:
  - Added credit-card endpoints and the concept of payment sources.
- version: '2017.1'
  status: obsolete
  breaking: false
  highlights:
  - Initial public release of the Pinch API.
notes: >-
  Non-versioned platform notes observed in docs: authentication via Application ID/Secret
  (Merchant ID as client_id deprecated); AI-ready surface (llms.txt + docs MCP server);
  no-code connectors (Zapier, n8n, viaSocket).