HubSpot Developer Changelog (24)

Announcing a new endpoint that returns all publicly available Open API specifications

Announced: March 5, 2021

This post is now out of date. Please refer to this updated version We are delighted to share that developers can now access HubSpot’s Open API Specification.

Burst limits are increasing for API key authenticated calls

Announced: March 1, 2021

We have rate limits in place to help make sure we offer reliable services to all our customers. Without them, customers could accidentally or maliciously slow down or take down HubSpot services. As we make improvements to our infrastructure we want...

Upload and create files in the Design Manager, Boolean field display updates

Live: March 12, 2021

We've updated the user interface of the Design Manager to make it easier to create and upload new assets. Markdown files are now creatable in the Design Manager. Boolean fields now display as checkboxes by default.

Serverless function execution limit update

Live: February 22, 2021

When CMS Hub Enterprise launched with serverless functions we had a limit of 60 function executions per minute. Starting today that's no longer in effect.

Now available: HubDB Row & CRM Object fields

Announced: February 3, 2021

We’ve added two new field types developers can use in modules to give content creators the ability to choose rows from HubDB, or object instances in CRM objects.

Developer Identity Status of Marketplace Apps now live

Announced: February 1, 2021

Back on October 22nd, 2020 we announced the availability for developers to be able to identify themselves and their apps to users by adding a verified domain. In that same post, we also announced that users would start seeing this identity status of...

CRM property change source will show user ID instead of owner email

Live: April 26, 2021

CRM properties tell you the current state of a given object, like a contact, what their first name is, what their address is and so on. One thing they can also tell you is what those values used to be. Maybe they moved so you changed their address....

The new HubSpot CLI and new blog template types

Live: January 25, 2021

The CMS CLI is now the HubSpot CLI. This will require manual effort to update to the new version. We're also adding 2 new template types for blogs.

Timeline API IDs must be globally unique

Live: April 21, 2021

The Timeline API allows you to embed information from other applications directly into the HubSpot Timeline. It also enables marketers to create lists based on contacts that interacted with those Timeline Events.

Drag and Drop Editing Now Available in Global Content Editors

Announced: January 14, 2021

Previously, the ability to use drag and drop content was only available inside of templates at the page level. Starting today, we have now expanded this editing ability to Global Content.

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

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: 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...