Public release notes for DealerMAX Developers. This changelog separates Dealer Public API contract changes from portal documentation changes so integrators can decide when to regenerate clients or update runtime handling.

Versioning policy

2026-06-29 - PartnerMAX - SDK docs 1.5.13

Changed

• Aligned the PartnerMAX portal and PDF to the SDK contract tested with the freshly generated Python and TypeScript SDKs.
• Documented client.dealers.create(...) as the SDK dealer-creation path backed by POST /api/partner/dealers.
• Documented that used-vehicle listing/detail routes are always dealer-scoped and there is no global PartnerMAX stock listing.
• Documented multipart image upload with Python file-like objects and Node toFile(..., { type: "image/jpeg" }).
• Documented ID-based optionals, packages, equipment, authenticated no-store reads, and the 1.5.13 MIME upload tolerance fix.

2026-06-27 - Portal - DealerMAX MCP Server documentation

Added

• Added https://developers.dealermax.app/mcp as the canonical developer documentation for the public DealerMAX MCP Server.
• Documented namespace app.dealermax/public-search, registry version 1.2.1, endpoint https://mcp.dealermax.app/mcp/, server card, tool catalog, read-only policy, and REST/API boundary.
• Added the MCP Server to /.well-known/apis.json, /sitemap.xml, /llms.txt, service status, and the machine-readable changelog feed.

Changed

• The Developers overview now presents three distinct public surfaces: Dealer Public API, DealerMAX MCP Server, and PartnerMAX Enterprise.

2026-06-27 - Portal - PartnerMAX trial onboarding

Added

• Added https://developers.dealermax.app/signup for self-service PartnerMAX trial onboarding.
• The flow verifies email by magic link, binds signup to a verified Partita IVA, creates a 15-day live trial, grants 3,000 credits, and shows the first Partner key once.

Changed

• PartnerMAX access starts before Stripe with strict trial limits; Stripe is required to continue after the trial.

2026-06-26 - API contract - Dealer Public API 1.0.0

Added

• OpenAPI response component schemas for inventory listing/details and dealer content hub/search/listing/details.
• DealerPublicProblemDetails schema for application/problem+json error responses.
• Machine-readable changelog feed at https://developers.dealermax.app/changelog.atom.

Changed

• Dealer Public API errors on /dealer/* now use stable code values and dereferenceable type URLs under https://developers.dealermax.app/errors.
• SDK guidance now treats generated clients as typed on both requests and successful responses.

Fixed

• OpenAPI now documents non-200 responses for 400, 401, 404, 422, 429, 503, and 500.

2026-06-25 - Portal - DealerMAX Developers launch

Added

• Rebuilt the public portal around the Dealer Public API as the primary surface.
• Added quickstart, API reference, SDK, security, rate-limit, error catalog, and .well-known/apis.json surfaces.
• Documented backend/BFF-only integration guidance for dealer API keys.

Changed

• Moved PartnerMAX to a separate enterprise section.
• Pruned the error catalog to the read-only Dealer Public API surface.

Contracts