v6.3.0-beta.4

6.3.0-beta.4 (2026-05-26)

Features

• allow externally managed webhook signing capabilities (#876) (3c312a0)

v6.2.0-beta.3

6.2.0-beta.3 (2026-05-26)

Features

• adagents: add permissive property resolver (#863) (7f45742)
• decisioning: add full stack registry factory (#862) (28c4f64)
• decisioning: add registry observer removal (#861) (2657a8b)
• handlers: expose sync_catalogs through sales-catalog-driven specialism (#838) (6fdcb77)
• server: add unknown-field policy and hook composition (#860) (7b830c3)

Bug Fixes

• adagents: raise AdagentsAccessBlockedError on 403 + cf-mitigated: challenge (#837) (bc4111f)
• decisioning: project malformed-JSON 2xx responses to AdcpError (#836) (c547dfe), closes #453
• expose requested AdCP version resolver (#855) (f1d88bc)
• types: add update media buy response coercion (#864) (c111ba6)
• webhooks: promote McpWebhookPayload.token from extras shim to typed field (#835) (3832433), closes #638

v6.2.0-beta.4

6.2.0-beta.4 (2026-05-26)

Features

• decisioning: add request-scoped capabilities hook (#869) (23fb317)
• server: negotiate media buy version handling and update actions (#871) (5a89d86)
• support AdCP 3.1 Beta 4 (#872) (1bae6e8)

v6.1.1-beta.2

6.1.1-beta.2 (2026-05-25)

Bug Fixes

• codegen: preserve regenerated response aliases (#854) (56d65fd)
• seller SDK version compatibility (#852) (e4b716d)

v6.1.0-beta.2

6.1.0-beta.2 (2026-05-24)

⚠ BREAKING CHANGES

• read media_buy_status for lifecycle; status is now the task envelope.

Features

• add webhook proof-of-control helper (#843) (232f7ef)
• align media-buy responses with AdCP 3.1 (391dae6)
• canonical-formats: public API + v2→v1 projection (#741, half 1 of 2) (#841) (b455e2a)
• canonical-formats: v1↔v2 reverse + pixel_tracker + narrowing (#741, half 2 of 2) (#845) (37e9225)
• examples: dual-emit v1 format_ids + v2 format_options on reference seller (#847) (7731f53), closes #741

Bug Fixes

• harden media buy response normalization (5defa15)
• harden media buy response normalization (532459a)

v6.1.0-beta.1

6.1.0-beta.1 (2026-05-23)

Features

• add webhook URL policy and wholesale feed sender (65f84d2)

v6.0.0-beta.1

6.0.0-beta.1 (2026-05-23)

Features

• testing: make SellerA2AClient event drain configurable (#829) (62515d8)

Bug Fixes

• send AAO directory pagination cursor as cursor (#811) (da91183)

Documentation

• add MIGRATION_v5_to_v6 stub for the 6.0-beta line (#823) (c3837af), closes #802
• types: refresh import-architecture references (closes #807) (#828) (169bc80)

v5.7.0

5.7.0 (2026-05-22)

Features

• adagents: divergence detector + ?include=properties for directory inverse-lookup (#749 Part 3, adcp#4894) (#752) (1281076)
• adagents: fetch_agent_authorizations_from_directory for AAO inverse lookup (#769) (1c4e57d)
• adagents: publisher_domains compact form, revoked_publisher_domains, streaming fetch caps (closes #729) (#753) (352d1bb)
• decisioning: emit AGENT_SUSPENDED / AGENT_BLOCKED dedicated codes (closes #409) (#748) (12f8ffe)
• decisioning: Tier 3 brand-authz dispatch gate (#350 stage 5, closes #350) (#785) (1ad6df9)
• decisioning: wire create_media_buy_store into PlatformHandler dispatch (closes #462) (#773) (062c6f0)
• examples: handle @adcp/sdk@7.10.x storyboard scenarios (closes #782) (#788) (7ef1b1a)
• pick up beta 3 wholesale products and signals (#799) (0deeaeb)
• preview: opt-in v3.1.0-beta.1 client surface (#4761, #4762, #4763) (#747) (35fdd47)
• schemas: patches/ post-process infra + restore #753/#792 hand-edits (#795) (4e6a722)
• signing: BrandAuthorizationResolver (Tier 3, #350 stages 1-3) (#770) (9028a88)
• signing: verifier key_origins check + IDNA-2008 canonicalization (closes #776, #777) (#789) (31354b4)
• translation: list known keys in TranslationMap KeyError (#768) (7545424)
• types: auto-enforce publisher-selector XOR at Pydantic parse time (closes #759) (#761) (e973864)
• validation: validate_publisher_properties_item accepts Pydantic models (#756) (01c6491)

Bug Fixes

• adagents: disable follow_redirects on ads.txt MANAGERDOMAIN fetch (#754) (76a679f)
• adagents: inline-resolution path for publisher_properties selectors + publisher_domains[] fan-out (#750) (659135f)
• adagents: resolve-and-validate gate against DNS-based SSRF (#757, partial) (#760) (969f373)
• allow owned signals discovery without activation (#792) (46ae0c9)
• decisioning: timing-oracle defense on PERMISSION_DENIED branches (#772) (#774) (c23c9d5)
• preserve full sync_accounts request for account stores (#796) (2b7ad01)
• signing: Argus follow-ups on #789 — IDNA + IP literals, Protocol contract, misconfig warnings, diagnostic hygiene (#798) (fcb64fc)

Reverts

• preview: remove opt-in v3.1 preview surface (#747) (#755) (6947870)

Documentation

• agents: behaviour → behavior (Argus smoke test) (#766) (e7c0815)

v5.6.0

5.6.0 (2026-05-19)

Features

• auth: per-instance discovery_tools override for BearerTokenAuth (#743) (76d0673)

Bug Fixes

• types: open Format.assets discriminated union with UnknownFormatAsset fallback arm (issue #742) (#744) (7904f85)
• types: resolve capability sub-models via field annotation, not numbered names (#745) (b63c7e6)

Documentation

• decisioning: document AccountStore.resolve() as the multi-tenant encoding seam (#739) (0b30743)

v5.5.0

5.5.0 (2026-05-14)

Features

• agents: adopt shared .agents/roles/ layout from adcp#4500 (#730) (fe02c17)
• agents: Phase 3 — weekly sync workflow from adcp (#731) (884873a)
• decisioning: PgProposalStore + framework package derivation (#727) (#732) (c41d4a8)

Bug Fixes

• v3-ref-seller: run alembic upgrade head at boot (#421) (#733) (ffa3c8c)

Documentation

• response-extension import path guidance for context-specific schema variants (#644) (61fb835)