HubSpot Developer Changelog (23)

Announcing New Rate Limits for the Existing Form Submission Endpoints and Two New Authenticated Submission Endpoints

Live: July 13, 2021

To improve HubSpot’s platform security and performance we are announcing new rate limits for the existing Forms API submission endpoints plus two new authenticated submission endpoints.

Let us know what you think about our beta APIs

Announced: April 2, 2021

As HubSpot CEO, Brian Halligan, is fond of saying “Feedback is the breakfast of champions” so it’s important for us to hear exactly what you think about about our APIs, especially while they are in beta.

Announcing Forms API v3 Developer Preview is Now Available

Announced: March 24, 2021

We are continuing to build the next generation of HubSpot’s APIs to provide the consistency and completeness our developer community needs. Today, we are excited to announce that a refreshed Forms API and documentation is now available in developer...

Domains and redirects V3 APIs have exited beta

Live: March 17, 2021

We're excited to announce the CMS Domains and CMS URL Redirects V3 APIs are now out of beta. You can start using them in production.

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This post is now out of date.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 Starting today that's no longer in effect.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...

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.

CRM Imports API - New validation for Required Properties

Live: January 20, 2025

CRM objects often have properties that are required for creating records of that object type. For example Deals, require a Deal Name. When using the CRM Imports API, we're going to start validating that the provided import Request contains the...

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: 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...

Bug Fix: Batch Read Limit for HubSpot Associations API

Live: February 10, 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.

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...