Resources
Changelog
Every change to the v1 API, newest first. Material changes are also emailed to your account contact.
Versioning policy
- Additive changes — new endpoints, new optional parameters, new response fields — ship inside v1 without notice. Parse defensively.
- Breaking changes ship as a new major version in the path. v1 keeps running for at least six months after v2 is released.
- Deprecations are announced here and by email at least 90 days before anything is removed.
Releases
2026-01-14
Developer portal and OpenAPI
- New documentation portal with a page per endpoint, integration guides and a sandbox console.
- Published a machine-readable OpenAPI 3.1 document at /api/public/v1/openapi.json.
- Documented idempotency, refund and usage-freshness behaviour that has always applied.
2025-12-02
v1 general availability
- Catalogue, orders, eSIM retrieval, usage and wallet endpoints.
- Sandbox environment with simulated issuing and play-money balances.
- Signed webhooks for order, eSIM and wallet events.
- Per-partner rate limiting and full request logging in the portal.
Subscribe to updates by emailing support@journeystack.co with the word "changelog".