HubSpot Developer Changelog

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.

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.

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...