Changelog

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/v1 changes only additively: new endpoints, new optional fields, new event types, new error codes on existing statuses. Write clients that ignore unknown fields and unknown event types. A breaking change would ship as /v2, announced well ahead, with /v1 kept running.

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2026-10-20: v1 draft

First public draft of the v1 contract: effects, prices, files, generations, account and usage.
Standard Webhooks signing for generation, effect, price and balance events.
RFC 9457 errors with a stable code registry.
Test mode with simulated timelines and forced outcomes.