HubSpot Developer Changelog

New rate limits for the legacy Contacts API batch create or update endpoint

Announced: December 6, 2021

In an effort to increase the security and performance of the HubSpot platform, we will be introducing new limits for the legacy endpoint for creating or updating a group of contact records.

Upcoming: Customized lifecycle stages for contacts and companies

Live: September 30, 2022

On September 30th, 2022, users will be able to customize the lifecycle stages for their contacts and companies.

Private Apps are now available

Announced: November 9, 2021

Today we're excited to announce the release of Private Apps into general availability. Private Apps are a new way to connect your custom integration to your HubSpot account. They combine the easy setup of API keys, with the security features of...

The v3 CMS Pages API is now in public beta

Announced: October 28, 2021

We're excited to announce the release of our v3 CMS Pages API into public beta. This API will let you create and manage your website and landing pages.

Changes to the GDPR deletion endpoints for the CRM Contact Object API

Announced: September 22, 2021

We're making some changes to the new GDPR endpoints recently released into beta for the CRM Contact Object API. We currently have two separate endpoints for handling GDPR deletions for contact records; one that uses the email address and one that...

Upcoming: Expiration of OAuth access tokens is changing

Announced: September 20, 2021

What's changing? Beginning on November 8th, OAuth access tokens will be generated with a shorter expiration time. Tokens currently expire 6 hours after they are generated. After this change, tokens will expire 30 minutes after being generated.

Deprecating CAPTCHA for the v2 form submissions endpoint

Announced: August 30, 2021

Form submissions made using the Forms API that include a CAPTCHA token will return an error starting on September 13.

The Files API v3 has now exited beta

Announced: May 10, 2021

Last November, we released a new version of our Files API to public beta. This new version follows our other v3 releases in being more consistent and developer friendly. This version also included a few upgrades, including better deduplication and...

Upcoming: Developer accounts will require two-factor authentication for login

Announced: April 12, 2021

HubSpot currently supports two-factor authentication (2FA) for all HubSpot accounts, including developer accounts. Until now, 2FA has been optional, and is enabled from the account settings of any HubSpot account, either for an individual user, or...

(In Beta) The hs_event_status is being removed from the Marketing Events API.

Announced: December 8, 2020

The hs_event_status property is being removed from marketing events, and will no longer be available via the Marketing Events API.

Additional details returned when generating OAuth access tokens

Live: August 18, 2025

What's changing? We're adding two additional fields to the response when generating an access token using the POST /oauth/v1/token endpoint:

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...

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Latest Posts

New rate limits for the legacy Contacts API batch create or update endpoint

Upcoming: Customized lifecycle stages for contacts and companies

Private Apps are now available

The v3 CMS Pages API is now in public beta

Changes to the GDPR deletion endpoints for the CRM Contact Object API

Upcoming: Expiration of OAuth access tokens is changing

Deprecating CAPTCHA for the v2 form submissions endpoint

The Files API v3 has now exited beta

Upcoming: Developer accounts will require two-factor authentication for login

(In Beta) The hs_event_status is being removed from the Marketing Events API.

Additional details returned when generating OAuth access tokens

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