Release history of the partnermax service surface. SDK release notes live separately on the partnermax-python releases page; those follow the OpenAPI spec automatically via Stainless.

v1.5.x - SDK contract alignment (2026-06-27 -> 2026-06-29)

• v1.5.13 - vehicle-image uploads tolerate SDK runtimes that send supported JPEG/PNG/WebP files as generic binary MIME; Node examples now pass { type: "image/jpeg" } to toFile(...). Public docs and PDF align to the generated SDK contract.
• v1.5.12 - vehicle create/update/list/detail now match the DealerMax stock form: service history, revision/tax dates, ownership transfer, double keys, base color, cost price, previous owners, warranty, trim alias, damage declarations, technical overrides, listing card fields, and dealer-scoped stock rules.
• v1.5.11 - SDK dealer creation is exposed as client.dealers.create(...), backed by POST /api/partner/dealers on the same API host.
• v1.5.10 - multipart image upload schema normalized to format: binary; authenticated PartnerMAX GET responses documented as no-store.

v1.0.x — General availability (2026-05-18)

• v1.0.2 — robust public URL surface (every documented URL responds with substantive content), error catalog at https://developers.dealermax.app/errors, RFC 9116 security.txt, sub-processor inventory.
• v1.0.1 — audit-driven docs alignment with the live API. partner_id contract switches to ptn_<n> prefix. Error code catalog purged of unimplemented codes. Documentation aligned to v0.7.0 SDK contract.
• v1.0.0 — first GA tag. 19-chapter technical documentation package shipped.

v0.x — Preview (2026-05-12 → 2026-05-17)

Preview releases (v0.1 → v0.7) iterated on the NLT settings contract, the dealer-aware catalog shape, and the apimax-aligned offer detail response. Breaking changes between preview releases were not subject to the 180-day deprecation window; v1 begins that window.

Versioning policy

Breaking changes to the v1 contract require a new major path (/v2/) and a minimum 180-day overlap window with the previous major (RFC 8594 Sunset / Deprecation headers). See https://developers.dealermax.app/docs → 08 Versioning and Deprecation.