HubSpot Developer Changelog

Reminder: Upcoming Validation Change to the Forms API Submission Endpoints on March 21st, 2022

Live: March 21, 2022

This is a reminder for our developer community that from March 21st, 2022 we will be rejecting any form submissions that submit fields that aren’t present on a form. Plus any submissions that are missing fields that are required on a form. Any forms...

Upcoming Validation Change to the Forms API Submission Endpoints

Live: March 21, 2022

Update: We recently released an amendment to this validation, please see this amendment here: Amendment to Forms API Submission Validation. From March 21st 2022 we will be rejecting any form submissions that submit fields that aren’t present on the...

Sunsetting the ‘archived’ query parameter for the v3 CRM Pipeline API and introducing two new audit endpoints into public beta

Live: March 14, 2022

We will be sunsetting the ‘archived’ query parameter for the v3 CRM Pipeline API and also introducing two new endpoints into public beta for auditing changes to CRM pipelines and pipeline stages.

Announcing the addition of a new fieldLevelPermission field to the v1 CRM Properties APIs

Announced: November 3, 2021

We are introducing a new field called fieldLevelPermission to the v1 CRM Properties API.

Change to behaviour between GET and POST Contacts V1 endpoints

Announced: October 29, 2021

We are making a change to the current inconsistent behaviour between the GET and POST Contacts V1 endpoints.

New property limits for the Custom Behavioural Events API

Live: September 20, 2021

We are introducing new property and value limits for the Custom Behavioural Events API which is currently in beta.

Public beta: Introducing new GDPR deletion endpoints for the CRM Contact Object API

Live: August 27, 2021

Update: This post has been updated to more accurately reflect the current GDPR functionality as of September 2022. See our GDPR resources for integrations for full details. Good news! We've enhanced the HubSpot platform to enable easier compliance...

Deprecating the “skipValidation” optional parameter for the v3 form submission endpoints

Live: August 26, 2021

The “skipValidation” optional parameter for the v3 form submission endpoint will be deprecated today, August 26th 2021.

Reminder: New Rate Limits for the Existing Form Submission Endpoints will be introduced on July 13th 2021

Live: July 13, 2021

New Rate Limits for the Existing Form Submission Endpoints will be introduced on July 13th 2021.

Announcing the removal of the imports field from the v1 Deals API

Live: September 27, 2021

Sunset: the "imports" field will no longer be provided by the v1 Deals API.

Sunset of JWT SSO Setup for Private Content

Live: January 29, 2025

What's Changing? On January 29th, 2025 we are deprecating the ability to set up Single Sign-On (SSO) for JWT-based applications. Moving forward, we will be replacing this functionality with the OpenID Connect (OIDC) standard1. If you are already...

Breaking Change: Upcoming Change to Scope Requirements for App Cards in Private Apps

Live: December 1, 2024

As part of our ongoing efforts to enhance security within the HubSpot ecosystem, we will update the scope requirements for app cards in private apps on December 1st, 2024.

Breaking Change: Removed Support for Referencing Custom Object Types by Base Name

Live: April 29, 2025

We are removing the undocumented support for requesting custom object types by their base name (GET/crm/v3/objects/{baseName}) in HubSpot public APIs. All custom object types must be referenced by their unique identifier (object type ID, fully...

Public Beta: Automatic Deactivation of Exposed Tokens

Live: April 7, 2025

To enhance the security of our platform and protect our customers, we are introducing an automatic token deactivation public beta feature on October 8th, 2024, for any HubSpot tokens publicly exposed in GitHub repositories. This update is designed...

Updated Merge Functionality for CRM Objects (including Contacts and Companies)

Live: January 14, 2025

Note: This changelog supersedes a prior version published on July 22, 2024. Due to customer feedback and confusion regarding the scope of changes, we have updated and clarified the details in this new changelog. Please review the updated information...

Bug Fix: Batch Read Limit for HubSpot Associations API

Live: January 6, 2025

HubSpot is introducing a new limit on the number of IDs that can be supplied to the Batch Read endpoint for (/{fromObjectType}/{toObjectType}/batch/read) both the v3 and v4 public Associations API.

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...

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

Live: January 6, 2025

Starting January 6, 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 and...

Update: Legacy CTA Sunset

Live: March 31, 2025

Based on community feedback, we have updated our approach to transitioning from Legacy CTAs to the new CTA editor in HubSpot. In Q1 2025, new CTAs cannot be created by the Legacy CTA editor. Below are more details explaining the plan and changes to...

Upcoming Sunset: V1 Contact Lists API

Live: May 30, 2025

What’s changing? The V1 Contact Lists API will sunset on May 30th, 2025. After this date, calls made to the v1 endpoints will no longer function. We're sunsetting the V1 Contact Lists API to focus our development efforts on the improved V3 Lists...

Legacy v1 Integration Timeline API Update

Live: December 2, 2024

We are making an important update to ensure our platform remains cutting-edge and to facilitate the introduction of new features. Starting December 2, 2024, the legacy v1 Integration Timeline API will no longer support mutations of Timeline Events....

Legacy CTA Sunset Timeline and Scope Update

Live: December 31, 2024

Previous Sunset Start: April 30, 2024