July 2026 — Developer platform preview
Introduced tenant-scoped service credentials, mailbox and message APIs, idempotent sending, canonical events, signed webhooks, replay, the TypeScript SDK, and the integrations portal.
- Plan-controlled per-minute and daily request limits
- HMAC-SHA256 signatures and five-minute replay tolerance
- At-least-once delivery with retry and reconciliation
- Versioned OpenAPI 3.1 contract
Compatibility policy
New optional fields, resources, event types, and enum values can be added within v1. Consumers should ignore unknown fields and handle unknown event types safely.