[aao-ipr-bot]

🤖 I have created a release beep boop

9.0.0-beta.5 (2026-10-24)

⚠ BREAKING CHANGES

• codegen: a JSON document carrying null for an optional property whose schema does not admit null is now refused by model_validate_json and TypeAdapter.validate_json, and the published JSON Schema of such a property has no null arm. A Python None is still accepted. JSON produced with exclude_none=False must be read back in Python mode (model_validate(json.loads(...))).
• types: SyncCreativesRequest.creatives is now list[CreativeAsset] | None. Handlers must guard it before iteration or use request.creatives or [] for assignment-only requests.

Features

• compat: negotiate and translate AdCP minor versions (#1559) (31d7217)
• reporting: sync empty-ledger replacement and owned-ledger rollback for 9.0 adopters (#1554) (38d046a)

Bug Fixes

• canonical-formats: compare every parameter a format reference declares (#1518) (d073712), closes #1517
• canonical-formats: read an omitted pixel_ratio as 1x on the supported side too (#1553) (b07adbc)
• codegen: refuse a JSON null on optional properties whose schema forbids one (#1555) (a40c2f0)
• governance: require crit markers with their claims, and run the signing tests CI skips (#1539) (15c85cf)
• release: tighten V9 reporting and CI readiness checks (#1550) (41c2be7), closes #1383 #1493
• types: allow assignment-only creative syncs (81c2a8b), closes #1545
• types: generate the open asset unions, and derive the vocabulary they route by (#1501) (30a72ee)
• types: inherit the generated constraints on the canonical creatives field (#1548) (69a0f6b)
• webhooks: echo reporting_webhook.operation_id on scheduled delivery reports (#1552) (0bac033), closes #1092

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[aao-secretariat]

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