# HubSpot for Developers Pipelines API V1 Sunset: December 4, 2026

- Product: HubSpot for Developers (https://whatsnew.fyi/product/hubspot-developers)
- Vendor: HubSpot
- Date: 2026-08-14
- Original notes: https://developers.hubspot.com/changelog/pipelines-api-v1-sunset
- Permalink: https://whatsnew.fyi/product/hubspot-developers/releases/2026-08-14-pipelines-api-v1-sunset-december-4-2026

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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HubSpot will sunset the Pipelines API V1 on December 4, 2026 . After this date, the API will no longer be supported. If your integration relies on V1 endpoints, you'll need to migrate to the 2026-03 o…

- **deprecated** — Pipelines API V1 will be sunset on December 4, 2026 and will no longer be supported after that date