HubSpot Developer Changelog (8)

Upcoming Sunset of Legacy Pipeline Stage Calculated Properties for Contacts and Deals

Live: November 20, 2024

We have introduced a new set of pipeline stage calculated properties for the contacts and deals objects that offer more functionality than their predecessors. With the introduction of these new properties, we will be sunsetting the corresponding...

Sunset: Replacing api-catalog-public/v1/apis Endpoint

Live: November 11, 2024

Starting November 11th, 2024, we are deprecating the api-catalog-public/v1/apis endpoint, which will be replaced by the new public/api/spec/v1/specs endpoint. The new endpoint provides a different response format to support HubSpot API versioning...

Public Beta: Generic Webhook Subscriptions

Announced: August 6, 2024

Starting on August 6th, 2024, you can now use 24 additional CRM object types with webhook subscriptions for both private and public apps. We are updating the format to follow the "object.*" pattern to standardize the subscription types.

July 2024 Rollup

Announced: July 31, 2024

It is time for July 2024 Developer Rollup. From webhooks to memberships, we have a lot going on.

Public App Reauthorization and Advanced Scope Settings

Live: August 26, 2024

Note: This change is related to the recently announced advanced scope settings.

Introducing Custom Association Limits for Associations API

Announced: July 30, 2024

Starting July 30th, 2024, HubSpot users can now configure custom limits for the number of associated records of a particular object type or a label to a specific object type via the public Associations API. This enhancement provides more flexibility...

Reminder: Upcoming Sunset of v2 Owners API on August 30, 2024

Live: March 24, 2025

In February 2024, we announced the sunset of the v2 Owners API. This is a reminder that on August 30, 2024, we will be sunsetting v2 of the Owners API. To avoid disruptions, we strongly encourage users to migrate to v3 of the Owners API before this...

Updated merge functionality for contacts and companies

Live: January 14, 2025

Note: This changelog has been superseded by an updated version published on October 2, 2024. Please refer to the new changelog for the most accurate and up-to-date information regarding merge functionality for contacts, companies, and other CRM...

Updates to Enumeration Properties in Custom Quotes and how to fetch labels and internal values

Announced: July 19, 2024

We are updating the JSON returned for custom enumeration properties to include BOTH the internal value as well as the external label. For CMS Developers, we have updated the crm_property_definition function to be available outside of gated content.

Sites using polyfill.io on HubSpot were rewritten to use Cloudflare's version

Live: July 15, 2024

URLs for a popular polyfill service (polyfill.io) began serving malicious code after years of serving safe polyfill scripts. Web developers use polyfills to add backward compatibility for newer browser APIs. None of HubSpot's default assets use...

Additional details returned when generating OAuth access tokens

Live: August 18, 2025

What's changing? We're adding two additional fields to the response when generating an access token using the POST /oauth/v1/token endpoint:

Ending Support for HubSpot CLI Versions Below 6.0.0

Live: October 1, 2025

We will be officially ending support for all HubSpot CLI versions below 6.0.0. This will improve security, reliability, and compatibility with our developer platform and other developer tooling for our developer community.

Marketing Email API: v3 released to general availability and upcoming sunset for v1

Live: October 1, 2025

Today we're announcing changes for the two versions of the Marketing Emails API.

Deprecation of Node v18 in all serverless functions and CLI

Live: October 1, 2025

Node.js v18 will reach end of life on April 30th, 2025. To make sure HubSpot systems stay up to date on security and reliability, we will be ending support for Node.js v18 on Oct 1, 2025. After this date, any existing functions using v18 will...

Update for Legacy CTA Editor Sunset

Live: November 30, 2025

We have an essential update on the scope and timeline of a previously announced Legacy CTA sunset. Starting September 1st, 2025, all new CTAs must be created using the new CTA editor. Existing Legacy CTAs that have already been created will continue...

Upcoming Sunset of Clearbit’s Free Logo API

Live: December 1, 2025

In December 2023, Clearbit was acquired by HubSpot, marking the beginning of an exciting new chapter for both companies. Since then, the Clearbit team has fully integrated into HubSpot, combining our expertise with HubSpot’s resources to better...

Breaking Change: Enhanced Validations for Non-String Properties in HubSpot's CRMObject APIs

Live: November 10, 2025

Starting November 10th, 2025, HubSpot will implement enhanced validations for non-string property values, including enumeration and multi-value enumeration property values submitted via the CRMObject APIs. This change aims to improve data integrity...

Reminder: Breaking Change for Enhanced Validations for Non-String Properties in HubSpot's CRMObject APIs

Live: November 10, 2025

Starting November 10, 2025, HubSpot will introduce enhanced validation rules for non-string property values, including enumeration and multi-value enumeration submitted via the CRMObject APIs. This change aims to improve data integrity and user...

Update: Legacy CTA Sunset

Live: November 30, 2025

Attention: We've recently revised our timeline on March 25th, 2025. For the most current details regarding this change, please check the latest updates in our changelog. Based on community feedback, we have updated our approach to transitioning from...

Upcoming Sunset: V1 Contact Lists API

Live: September 30, 2025

Edit: we have extended the sunset date from May 30, 2025 to September 30, 2025 to allow more time for migrations. The below has been updated to reflect this change. What’s changing? The V1 Contact Lists API will sunset on September 30, 2025. After...

Legacy CTA Sunset Timeline and Scope Update

Live: November 30, 2025

Attention: We've recently revised our timeline on March 25th, 2025. For the most current details regarding this change, please check the latest updates in our changelog.

Upcoming Sunset: Legacy CTAs

Live: November 30, 2025

Attention: We've recently revised our timeline on March 25th, 2025. For the most current details regarding this change, please check the latest updates in our changelog. We are sunsetting the Legacy CTAs (Call-To-Action) app and migrating it into a...

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Latest Posts

Upcoming Sunset of Legacy Pipeline Stage Calculated Properties for Contacts and Deals

Sunset: Replacing api-catalog-public/v1/apis Endpoint

Public Beta: Generic Webhook Subscriptions

July 2024 Rollup

Public App Reauthorization and Advanced Scope Settings

Introducing Custom Association Limits for Associations API

Reminder: Upcoming Sunset of v2 Owners API on August 30, 2024

Updated merge functionality for contacts and companies

Updates to Enumeration Properties in Custom Quotes and how to fetch labels and internal values

Sites using polyfill.io on HubSpot were rewritten to use Cloudflare's version

Additional details returned when generating OAuth access tokens

Ending Support for HubSpot CLI Versions Below 6.0.0

Marketing Email API: v3 released to general availability and upcoming sunset for v1

Deprecation of Node v18 in all serverless functions and CLI

Update for Legacy CTA Editor Sunset

Upcoming Sunset of Clearbit’s Free Logo API

Breaking Change: Enhanced Validations for Non-String Properties in HubSpot's CRMObject APIs

Reminder: Breaking Change for Enhanced Validations for Non-String Properties in HubSpot's CRMObject APIs

Update: Legacy CTA Sunset

Upcoming Sunset: V1 Contact Lists API

Legacy CTA Sunset Timeline and Scope Update

Upcoming Sunset: Legacy CTAs