Version Packages (rc)

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This PR was opened by the Changesets release GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated.

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main is currently in pre mode so this branch has prereleases rather than normal releases. If you want to exit prereleases, run changeset pre exit on main.

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Releases

adcontextprotocol@3.0.0-rc.4

Minor Changes

• 5e9a748: Add generic agents array to brand.json for brand and house objects. Replaces the pattern of adding named agent fields (brand_agent, rights_agent) with a typed array that supports brand, rights, measurement, governance, creative, buying, and signals agent types. Deprecates brand_agent and rights_agent fields.

• a497d02: Add border_radius, elevation, and spacing definitions to visual_guidelines in brand.json schema. Add extended color roles (heading, body, label, border, divider, surface_1, surface_2) to the colors definition. These are the visual tokens creative agents most often guess wrong when not specified.

• 106831c: Add broadcast TV, audio, and DOOH forecast support: measurement_source field on DeliveryForecast to declare which third-party measurement provider produced the forecast numbers (includes global providers: nielsen, videoamp, comscore, geopath, barb, agf, oztam, kantar, barc, route, rajar, triton); measured_impressions metric for delivery as counted by the measurement_source provider (independent of guarantee — works with both guaranteed and modeled forecasts); downloads metric for podcast advertising; plays metric for DOOH raw play counts before impression multiplier; package forecast range unit for sellers who offer distinct inventory packages rather than spend curves; label field on ForecastPoint to identify packages by name; relax mid requirement on ForecastRange to accept either mid or both low+high.

• cf4e9ee: Extend brand.json fonts schema with structured font definitions. Each font role (primary, secondary, etc.) now accepts either a CSS font-family string or a structured object with family, files (with weight, weight_range for variable fonts, and style), opentype_features (e.g., ss01, tnum), and fallbacks for multi-script coverage. This enables creative agents to resolve and render fonts reliably while remaining backward compatible with simple string values.

• 7736865: Add per-request version declaration and VERSION_UNSUPPORTED error code

  Version negotiation:

  • adcp_major_version optional integer field on all AdCP request schemas lets buyers declare which major version their payloads conform to
  • Sellers validate against their major_versions and return VERSION_UNSUPPORTED if out of range
  • When omitted, sellers assume their highest supported version

  Error codes:

  • VERSION_UNSUPPORTED — declared major version not supported by seller. Recovery: correctable.

  Documentation:

  • Version negotiation section in versioning reference
  • Version negotiation flow and seller behavior in get_adcp_capabilities docs

Patch Changes

• 0d5d682: Guard against missing brand_domain_aliases table in sweep job and undefined domain in WorkOS verification_failed webhook

• f6a1fe2: Fix digest archive route ordering to prevent param collision

• 3ff7397: Fix digest content hierarchy, dedup articles, inclusive tone

• a8e4d71: Fix article dedup by root domain and WG summaries showing descriptions

• 25de6cf: Fix digest editor note newlines, paid members only, biweekly lookback, legacy draft handling

• 4fab693: Improve error diagnostics and migrate test runner from Jest to Vitest

• f172af6: Add sync_governance to schema index for client discoverability.

• 70740e8: Add missing route handler for /dashboard-membership to fix "Cannot GET" errors

• afe43ee: Fix migration guide missing comply-blocking requirements

  • Add buying_mode as a required field on all get_products requests to the breaking changes table
  • Add warning callout for buying_mode comply-blocking requirement
  • Fix Accounts protocol row: protocol is required for all buyers, require_operator_auth determines which task (sync_accounts vs list_accounts) to call

• 62f91de: Newsletter admin editors, email routing fix, and production readiness

• f18148e: Redesign organization dashboard: split into sidebar-navigated pages (Overview, Team, Agents), restore journey stepper with product-usage milestones, add upgrade teasers for all tiers with price reframing, wire team certification summary, show health score weights, and fix nonmember 403 error.

• 6f45f15: Personalized action nudge in newsletter based on recipient profile

• 8e8f604: Let users select a primary email from linked aliases via PUT /api/me/linked-emails/primary.

• 26816c5: Add Regenerate button to digest admin editor

• 4095926: Add The Build admin editor and consolidate newsletter sidebar

• 9415ae3: Split newsletter into This Edition + Industry Intel sections