HubSpot Developer Changelog

Upcoming: Developer accounts will require two-factor authentication for login

Announced: April 12, 2021

HubSpot currently supports two-factor authentication (2FA) for all HubSpot accounts, including developer accounts. Until now, 2FA has been optional, and is enabled from the account settings of any HubSpot account, either for an individual user, or...

(In Beta) The hs_event_status is being removed from the Marketing Events API.

Announced: December 8, 2020

The hs_event_status property is being removed from marketing events, and will no longer be available via the Marketing Events API.

The v3 Files API is now available in public beta

Announced: November 10, 2020

Today we're announcing the release of the v3 Files API to public beta. This updated version brings the Files API in line with our previously released CMS v3 APIs.

Updates for the CMS Files API

Announced: October 5, 2020

Today we're announcing a few updates for the current CMS Files API.

The Accounting Extensions API is now available for general use

Announced: September 22, 2020

Today we're announcing the release of the Accounting Extensions API to general availability. This means that the API is now considered stable and available for anyone to use for development.

Upcoming: Timeline API Maintenance

Announced: September 2, 2020

The Timeline API will be undergoing maintenance between 2:00 PM and 2:30 PM Eastern Time Thursday, September 3. During this maintenance period, there will be a brief period where the Timeline API will be unavailable, and any requests to the API will...

Archived CRM Pipelines will be purged after 30 days

Announced: June 25, 2020

What's happening? Beginning on July 20, any CRM pipelines that have been archived for more than 30 days will be purged.

Contacts API v1 - 415 Unsupported Media Type errors for requests missing the Content-Type header

Announced: June 2, 2020

What happened? Last week, we made some infrastructure upgrades to the Contacts API. While this upgrade was mostly transparent, and didn't change the functionality of the API, this did change how the Content-Type request header is handled.

Updates on the sunsets for the Site Maps API and domain search for the Companies API

Live: June 12, 2020

What's happening? We previously announced April sunsets for our CMS Site Maps API, and for a deprecated endpoint in the Companies API to find companies by domain. However, given the current global situation, we decided to give partners, customers,...

New features released for the Chat Widget SDK

Announced: April 16, 2020

Today we're announcing three new features for the Chat Widget SDK.

Upcoming Sunset: Growth default theme for the HubSpot CMS

Live: March 15, 2025

What’s changing Starting on March 15, 2025, the default CMS Growth theme will no longer be available for new HubSpot portals. After this date, existing HubSpot portals will retain access to the Growth theme but will not receive any further features...

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

Live: April 7, 2025

Days until the change takes effect: 60 days

Breaking Change: Large Export Partitioning and Association Limits for the CRM Export API

Live: April 28, 2025

On April 28th, 2025, we will be updating the CRM Exports API to bring it closer to feature parity with the in-app export tool as well as improve the overall performance of the API allowing for quicker file delivery. Exports that exceed one million...

Breaking Change for DateTime Properties in Marketing Emails

Live: April 16, 2025

Starting April 16th, 2025, any DateTime properties in your HubSpot CRM used as personalization tokens in Marketing Emails will now include both the date and time stored in the property rather than just the date.

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...

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

Live: April 7, 2025

Starting April 7th, 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...

Developer References

Developer Community

App Ecosystem New

Template Marketplace

App Partner Program

Latest Posts

Upcoming: Developer accounts will require two-factor authentication for login

(In Beta) The hs_event_status is being removed from the Marketing Events API.

The v3 Files API is now available in public beta

Updates for the CMS Files API

The Accounting Extensions API is now available for general use

Upcoming: Timeline API Maintenance

Archived CRM Pipelines will be purged after 30 days

Contacts API v1 - 415 Unsupported Media Type errors for requests missing the Content-Type header

Updates on the sunsets for the Site Maps API and domain search for the Companies API

New features released for the Chat Widget SDK

Upcoming Sunset: Growth default theme for the HubSpot CMS

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

Breaking Change: Large Export Partitioning and Association Limits for the CRM Export API

Breaking Change for DateTime Properties in Marketing Emails

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

Public Beta: Automatic Deactivation of Exposed Tokens

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

Update: Legacy CTA Sunset

Upcoming Sunset: V1 Contact Lists API