HubSpot Developer Changelog

CLI now requires Node v18 or higher

Live: September 10, 2024

Version 6 of the HubSpot CLI drops support for Node v16. Node.js v16 reached end of life on September 11th, 2023. To ensure security and reliability for developers building with the CLI, we will be ending support for Node.js v16 on September 10th,...

Changes to HubL Time Filters - Handling Null Values

Live: September 30, 2024

The datetimetformat, between_times, unixtimestamp, format_date, format_datetime and format_time HubL filters and functions now display warnings if they are called with a null argument. Currently, when a null argument is passed to them, the current...

Long-standing HubL Limits will now be properly enforced

Live: November 4, 2024

Starting June 10th, 2024, we will begin to enforce the CMS HubL limits for all net-new HubSpot accounts and accounts not currently exceeding the limits using the affected functions, in accordance with our Software Products, Packaging, and Limits....

Deprecation of Node v16 in all serverless functions

Announced: April 12, 2024

Node.js v16 reached end of life on September 11th, 2023. To make sure HubSpot systems stay up to date on security and reliability, we will be ending support for Node.js v16 on July 12, 2024. After this date, any existing functions using v16 will...

On hold: Sunsetting v1 of the Cookie Consent Banner in favor of v2

Announced: April 5, 2024

HubSpot's cookie consent banner allows site visitors to opt in or opt out of being tracked in your HubSpot account with cookies. A new version of HubSpot's cookie management tools is now available to all customers.

February 2024 Changelog Rollup

Live: February 29, 2024

Before we head into March, we've got a number of updates that have rolled out this month from CRM development experience enhancements, app marketplace supporting new languages, new custom object and property limits, passwordless login for...

Filter improvements for HubL CRM functions

Live: February 22, 2024

The eq (equal) filter which can be used in query parameters of the crm_objects, crm_object, and crm_associations HubL functions, acts more in-line with the behavior expected for a contains comparison. We're correcting this by updating the eq filter...

Log tracing for UI extensions

Announced: December 11, 2023

Developers building UI Extensions with private apps will now be able to connect front-end and back-end logs with a single trace ID. You can trace and visualize both events in the front-end React layer (e.g. card rendering, button clicks, data entry)...

Developer Projects Platform Version 2023.2

Live: November 21, 2023

If you're using HubSpot Developer Projects - currently used for building UI Extensions and for the CMS React Beta we're introducing a new project version. To get the updates you'll need to update the platform version in your project config file.

New Recordings & Transcripts API replaces hs_call_recording_url for call engagements

Live: September 30, 2024

We're releasing a new Recordings & Transcripts API for securely sending call recordings to HubSpot using an authenticated URL. The new API replaces the hs_call_recording_url property for call engagements.

Ending Support for HubSpot CLI Versions Below 6.0.0

Live: October 1, 2025

We will be officially ending support for all HubSpot CLI versions below 6.0.0. This will improve security, reliability, and compatibility with our developer platform and other developer tooling for our developer community.

Marketing Email API: v3 released to general availability and upcoming sunset for v1

Live: October 1, 2025

Today we're announcing changes for the two versions of the Marketing Emails API.

Deprecation of Node v18 in all serverless functions and CLI

Live: October 1, 2025

Node.js v18 will reach end of life on April 30th, 2025. To make sure HubSpot systems stay up to date on security and reliability, we will be ending support for Node.js v18 on Oct 1, 2025. After this date, any existing functions using v18 will...

Update for Legacy CTA Editor Sunset

Live: November 30, 2025

We have an essential update on the scope and timeline of a previously announced Legacy CTA sunset. Starting September 1st, 2025, all new CTAs must be created using the new CTA editor. Existing Legacy CTAs that have already been created will continue...

Upcoming Sunset of Clearbit’s Free Logo API

Live: December 1, 2025

In December 2023, Clearbit was acquired by HubSpot, marking the beginning of an exciting new chapter for both companies. Since then, the Clearbit team has fully integrated into HubSpot, combining our expertise with HubSpot’s resources to better...

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...

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...

Update: Legacy CTA Sunset

Live: November 30, 2025

Attention: We've recently revised our timeline on March 25th, 2025. For the most current details regarding this change, please check the latest updates in our changelog. Based on community feedback, we have updated our approach to transitioning from...

Upcoming Sunset: V1 Contact Lists API

Live: September 30, 2025

Edit: we have extended the sunset date from May 30, 2025 to September 30, 2025 to allow more time for migrations. The below has been updated to reflect this change. What’s changing? The V1 Contact Lists API will sunset on September 30, 2025. After...

Legacy CTA Sunset Timeline and Scope Update

Live: November 30, 2025

Attention: We've recently revised our timeline on March 25th, 2025. For the most current details regarding this change, please check the latest updates in our changelog.

Upcoming Sunset: Legacy CTAs

Live: November 30, 2025

Attention: We've recently revised our timeline on March 25th, 2025. For the most current details regarding this change, please check the latest updates in our changelog. We are sunsetting the Legacy CTAs (Call-To-Action) app and migrating it into a...

Developer References

Developer Community

App Ecosystem New

Template Marketplace

App Partner Program

Latest Posts

CLI now requires Node v18 or higher

Changes to HubL Time Filters - Handling Null Values

Long-standing HubL Limits will now be properly enforced

Deprecation of Node v16 in all serverless functions

On hold: Sunsetting v1 of the Cookie Consent Banner in favor of v2

February 2024 Changelog Rollup

Filter improvements for HubL CRM functions

Log tracing for UI extensions

Developer Projects Platform Version 2023.2

New Recordings & Transcripts API replaces hs_call_recording_url for call engagements

Ending Support for HubSpot CLI Versions Below 6.0.0

Marketing Email API: v3 released to general availability and upcoming sunset for v1

Deprecation of Node v18 in all serverless functions and CLI

Update for Legacy CTA Editor Sunset

Upcoming Sunset of Clearbit’s Free Logo API

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

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

Update: Legacy CTA Sunset

Upcoming Sunset: V1 Contact Lists API

Legacy CTA Sunset Timeline and Scope Update

Upcoming Sunset: Legacy CTAs