HubSpot Developer Changelog (30)

API call logs available for API key users

Announced: April 15, 2020

A complete log of API calls made by an account can be a vital resource for developers. This is especially true when just getting started or trying to troubleshoot an issue. However, until now, HubSpot has only been providing logs of API calls to...

CMS Hub Developer Features and Updates

Announced: April 14, 2020

What's happening? The launch of CMS Hub includes several important updates for developers. Nothing needs to be done to existing sites to preserve existing functionality. The changes we're announcing make the HubSpot CMS more powerful for developers...

Developer Updates: Calling extensions, CMS Performance API, and CMS Content Audit API.

Announced: April 9, 2020

Calling Extensions Earlier this year, we released our new calling extensions SDK into developer preview. This feature allows users to make calls through your third-party calling service using the native calling functionality built into the HubSpot...

New Events and updated Ecosystem and CMS APIs are now in Developer Preview

Announced: April 6, 2020

As we continue to build the next generation of HubSpot’s APIs to provide the consistency and completeness our developer community has requested, we are excited to announce that a net new API and several more updated APIs are now in developer preview.

CRM API v3 is now available for general use

Announced: March 31, 2020

In January, we released a new collection of our v3 APIs into developer preview. Since then, many of you have worked with these new CRM APIs, and have provided valuable feedback and ideas for continual improvements. Thank you. Your feedback has...

New required information for the Associations API v3 in developer preview

Announced: March 26, 2020

Update: March 30 - This change is now live. What’s happening When creating, updating or removing associations between CRM objects, you will now need to specify a type of association. This type will also be returned when requesting associations for...

Improvements to authentication errors for V3 endpoints in developer preview program

Announced: March 11, 2020

What’s happening

New API client libraries available

Announced: February 25, 2020

What’s happening?

Restrict the Transactional Email SMTP endpoints to OAuth authentication only and sunset API key usage

Announced: February 19, 2020

What’s happening The usage of API keys for the Transactional Email SMTP endpoints listed below is being sunset.

Calling extensions is now available in Developer Preview

Announced: February 4, 2020

What's happening? Today we're releasing the new calling extensions feature to our developer preview program.

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...

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...

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