HubSpot Developer Changelog

We’ve extended the deprecation timeline for the Contact Lists API (v1) from September 30, 2025 to April 30, 2026. After that date, v1 Lists endpoints will return HTTP 404. Please migrate to the Lists v3 API.

Today we're releasing a new API endpoint that allows app builders to uninstall their public app from a HubSpot account: DELETE /appinstalls/v3/external-install