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HubSpot

HubSpot developer platform and changelog updates

HubSpot API Changelog Monitoring

HubSpot changes can affect CRM sync, custom objects, workflow automation, and marketing data integrations. This HubSpot API Changelog Monitoring page helps teams keep up with release notes and documentation changes before they turn into broken customer-facing workflows.

Useful HubSpot API Changelog Monitoring helps teams stay aligned with CRM and automation changes that can otherwise create silent sync issues. It gives you a better foundation for reviewing release notes, assigning follow-up work, and protecting customer data flows.

The benefit of HubSpot API Changelog Monitoring is simple: your team gets a repeatable way to watch changes, evaluate risk, and act before small upstream updates turn into customer-facing bugs. HubSpot developer platform and changelog updates

HubSpot API down?

HubSpot API down? Soon we will add direct API status monitoring alongside HubSpot API Changelog Monitoring. For now, go to the official API status page on the HubSpot website. In the future, we plan to detect likely outages even before the public status page is updated.

Recent changes

Showing the last 10 changes from this feed.

10-14-2026

Upcoming Automatic Update: HubSpot domain security settings will move to TLS 1.2

On October 14th, HubSpot will automatically update the minimum TLS version for your HubSpot-hosted domains from TLS 1.0 or 1.1 to TLS 1.2.

09-15-2026

Fall 2026 Spotlight - Developer / Builder Updates

This changelog rounds up the developer and builder updates in HubSpot's Fall Spotlight 2026 release: what's now generally available on Developer Platform version 2026.09, the new and

09-15-2026

Legacy APIs and Apps: What's Going Unsupported and When

At Fall Spotlight on September 15, HubSpot is announcing the end of support for v1-v3 APIs, legacy public apps, and legacy private apps, all with a September 2027 enforcement date. If your integration or ...

09-08-2026

Breaking Change: Pipeline and pipeline stage delete endpoints will validate references by default starting with the 2026-09 API version

7/23/2026 Edit - The post has been updated to include the Deal object specific ...

08-27-2026

Legacy Private App Creation Being Disabled

HubSpot is permanently removing the ability to create new legacy, non-Project based, private apps through the account UI. Users needing similar functionality should use Service Keys, available via Developer Platform Projects version 2026.09 ...

08-14-2026

Pipelines API V1 Sunset: December 4, 2026

HubSpot will sunset the Pipelines API V1 on December 4, 2026. After this date, the API will no longer be supported. If your integration relies on V1 endpoints, you'll need to migrate to the 2026-03 or ...

08-12-2026

Node 18.x and 20.x Runtimes Deprecated for Chatflow Custom Code Snippets

Node 18.x and 20.x are being deprecated as supported runtimes for Chatflows custom code snippets. If you have bot code ...

08-11-2026

Breaking Change: CRM API Write Validation Enforcement Starting with the 2026-09 API Version

Starting with the /2026-09/ API version shipping on September 8, 2026, HubSpot will enforce admin-configured validation rules on all CRM API write paths. If your integration creates or updates CRM records, please ...

07-31-2026

July 2026 Rollup

This month's updates include a raised owner property limit, larger Webhooks Journal batch sizes, and a new historical API usage chart — plus public betas for Contract Imports and the Payment Links API. Read on for the details.

07-13-2026

Upcoming breaking change: Customer Agent Lead Status contact property becoming read-only

We’re making the Customer Agent Lead Status contact property hs_customer_agent_lead_status ...