# HubSpot for Developers Deprecating Support for HubSpot v4 APIs

- Product: HubSpot for Developers (https://whatsnew.fyi/product/hubspot-developers)
- Vendor: HubSpot
- Date: 2026-05-21
- Original notes: https://developers.hubspot.com/changelog/deprecating-support-for-hubspot-v4-apis
- Permalink: https://whatsnew.fyi/product/hubspot-developers/releases/2026-05-21-deprecating-support-for-hubspot-v4-apis

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On March 30, 2027, HubSpot v4 APIs will move to an unsupported state. After that date, v4 APIs will no longer receive updates, bug fixes, or stability guarantees from HubSpot.

- **deprecated** — HubSpot v4 APIs will move to an unsupported state on March 30, 2027, and will no longer receive updates, bug fixes, or stability guarantees