HubSpot Developer Changelog

HubL updates you can leverage to improve site performance

Live: January 6, 2021

Today we're introducing some updates to commonly used HubL tags and functions that you can use to improve performance on your HubSpot websites.

CMS CLI bug fixes and a consistency tweak

Live: December 15, 2020

This release (v2.2.1) contains a couple of bug fixes and changing how we refer to individual HubSpot accounts using the CMS CLI (Command Line Interface). We will be using the term account in nearly all areas of the CLI that previously referred to...

TLS 1.0 and 1.1 support is sunsetting on March 8th, 2021

Live: March 8, 2021

To improve platform security and performance we are dropping support for TLS 1.0 and 1.1 in favor of supporting the newer versions of TLS. This will affect API integrations.

Email and custom workflow v3 APIs are out of beta

Live: November 11, 2020

We're excited to announce that the Custom Workflow Actions API and two of our email APIs are exiting beta. You can now feel safe using them in production apps.

HubSpot CMS CLI user experience improvements

Announced: October 29, 2020

The CMS CLI has been updated, adding a lot of new user experience improvements. Better secret management, command completion, browser shortcuts, interact with the developer file system in new ways and more!

Mobile breakpoint for themes

Live: October 20, 2020

Modern websites are responsive, they need to look and function well on mobile as well as they do on desktop. It is now possible to provide alternate theme styles for mobile.

HubSpot VS Code Extension

Live: October 1, 2020

We're always looking to improve the local development experience when building on HubSpot’s CMS. Today we are announcing the HubSpot VS Code Extension, and asking for your feedback.

CMS CLI watch skips initial upload, create vue-app

Live: September 15, 2020

Thanks to feedback from the community the CMS CLI watch command has been updated to not immediately upload the watched directory by default. It's now also easier to start working with Vue.js on HubSpot.

The contentType header for JavaScript and HTML in the Files tool is changing

Live: August 17, 2020

The contentType header for JavaScript and HTML served from the default HubSpot File Manager CDN is changing.

Module fields can be nested 4 levels deep, and new require_head tag

Live: August 12, 2020

You are now able to create modules that have fields that have 4 levels of depth. This is an increase from the previous 3 levels. Developers can now provide content creators easier interfaces by using more nested field groups. We're also adding a new...

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...

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...

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