Release Notes
API Changelog
Track version increments, new features, and protocol updates across our API gateways.
v1.2.0
FedNow Instant Settlement & Real-time Rails
August 28, 2026
Added support for instant 24/7/365 FedNow fund settlement and enhanced ledger reconciliation timestamps.
added
Added `fednow_instant` option in `paymentRail` parameter in `/transfers` endpoint.
POST /transfersadded
Added `transfer.settled.instant` event in Webhook Subscriptions.
POST /webhook-subscriptionssecurity
Upgraded API gateway OAuth token rotation with strict PKCE validation.
v1.1.0
Dynamic Spending Limits & MCC Restrictions for Commercial Cards
July 14, 2026
Introduced granular MCC code allowlists/blocklists and configurable velocity limits for corporate cards.
added
Added `allowedMccCodes` and `spendingPeriod` parameters to `/cards` issuance.
POST /cardschanged
Card freeze and unfreeze actions are now immediately broadcast to distributed edge caches.
v1.0.0
Initial Production Release of Rook Platform API
May 02, 2026
Official GA release of Core Banking, Card Issuance, Transfers, and Webhooks for community banks and enterprise partners.
added
Core Accounts and Ledger API endpoints released.
added
Virtual and physical card creation endpoints released.
added
Same-day ACH and Wire transfers released.