HubSpot Developer Changelog (9)

December 2023 Rollup

Announced: December 21, 2023

Can you believe that we are in December and 2023 is almost gone? Just because the year is almost gone, that doesn't mean that the HubSpot teams are done pumping out new and updated features for you all to sink your teeth into. Let's close out the...

Restricting the inboxId query parameter in the Beta Conversations API

Live: January 31, 2024

We'll be limiting requests to the GET /conversations/v3/conversations/threads endpoint to allow only a single inboxId query parameter.

Changes to primary labels for HubSpot-defined association labels

Announced: December 15, 2023

We're changing the labels for some of the HubSpot-defined associations between companies and other CRM objects.

Updated recommendations for storing OAuth access tokens

Announced: December 15, 2023

We're updating our recommendation for storing access tokens to allow tokens to be at least 512 characters in length.

Update to Forms API v3 and the lifecycle stage

Announced: December 12, 2023

This post serves as an update to the previous post on the lifecycle stage in forms. This post covers the details for the Forms API v3, which were missing from the previous post.

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)...

Increasing the size of contact record IDs

Announced: December 7, 2023

Beginning in March 2024, we'll be updating the system that generates contact record IDs. This will affect the id for the v3 Contacts API, the vid for the legacy Contacts API, and the hs_object_id property returned with either API.

Local Module Development: “host_template_types” property is being replaced with “content_types”

Announced: December 4, 2023

What’s Changing and why? The host_template_types array property for modules is being replaced with the content_types array property. The new content_types property is more robust and will allow for greater specificity regarding where modules can be...

November 2023 Rollup

Announced: November 30, 2023

Developer Updates for November 2023 Raised limits for programmable emails We've increased limits by 5X. Now when you use CRM functions (crm_associations, crm_object, crm_objects) in these type of emails, you'll be able to send them with the...

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.

CDN path for static assets (CSS & JavaScript) changing

Live: February 12, 2025

We're updating the paths for design manager assets, including CSS and JS files. The paths will change from hs-fs/hub/* to hs-fs/hubfs/*.

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...

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...