HubSpot Developer Changelog (35)

August 7th Roundup: 5 New Updates

Announced: August 7, 2019

For this post we rolled 5 updates into one with a new header to help with Webhook validation, a new callback for embedded forms, added flexibility for content developers, a number of documentation updates, and a small update to the Developer’s Terms...

Announcing new limits for Developer Accounts and Applications

Announced: August 6, 2019

What’s happening?

Complete: Timeline API Maintenance

Announced: August 5, 2019

Update: Maintenance is complete! The Timeline API will be undergoing maintenance between 5:00 PM and 6:00 PM Eastern Time Sunday, August 11. During this maintenance period, there will be a brief period where the Timeline API will be unavailable, and...

Changes to the public API demo account

Announced: July 11, 2019

Update: These changes are now live, and the demo API key will only be allowed to make GET requests. When HubSpot launched our first public APIs in 2010, we created our public API demo account so that developers would have an account that could be...

Now Live: Developer Accounts Updates - New home screen and added security

Announced: June 25, 2019

Today we are announcing three new updates to Developer Accounts. A new home screen for Developer Accounts, masking the client secret, and adding an option to specify a redirect URL for your applications.

Sunset: FTP Folders and Workflow Log Events

Announced: June 19, 2019

We’re experimenting with batching sunset updates every other week. We hope this will improve your experience as a developer community. Please let us know what you think using the community links below.

[Now Live]: New and Improved HubSpot API Limits

Announced: June 6, 2019

Edit: This is now live. If you have any questions or comments, join the discussion on our forum post We’re excited to share that in the coming weeks, HubSpot will be making some significant changes to our API Limits for all developers, customers,...

Updated Developer Terms of Service

Announced: June 4, 2019

We recently made an update to our Developer Terms to include coverage of Test Portals to help clarify what they are and are not supposed to be used for. Please let us know if there are any questions about this change here.

Update: Contact Search Parameters (New) Sort and Order Are Live

Announced: May 30, 2019

What’s happening?

Update: Marketing Email API is now live.

Announced: March 28, 2019

What’s happening?

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...

Final Reminder: Sunset of v2 Owners API

Live: March 24, 2025

The v2 Owners API will officially be sunset on March 24th, 2025, with no further extensions. After this date, all v2 Owners API endpoints will be fully sunset and return a 404 error response. This marks the final stage of our transition to the more...

Upcoming Sunset: Growth default theme for the HubSpot CMS

Live: March 15, 2025

Note: This post has been updated to reflect an updated sunset date of March 28. The original date for this was March 15. What’s changing Starting on March 28, 2025, the default CMS Growth theme will no longer be available for new HubSpot portals....

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...

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...

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...

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...

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Latest Posts

August 7th Roundup: 5 New Updates

Announcing new limits for Developer Accounts and Applications

Complete: Timeline API Maintenance

Changes to the public API demo account

Now Live: Developer Accounts Updates - New home screen and added security

Sunset: FTP Folders and Workflow Log Events

[Now Live]: New and Improved HubSpot API Limits

Updated Developer Terms of Service

Update: Contact Search Parameters (New) Sort and Order Are Live

Update: Marketing Email API is now live.

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

Final Reminder: Sunset of v2 Owners API

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

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

Update: Legacy CTA Sunset

Upcoming Sunset: V1 Contact Lists API