HubSpot projects v2025.1 is scheduled for deprecation on June 1, 2026. This is due to the underlying Node.js v20 deprecation by AWS Lambda. A new version, Platform v2026.03, will be released in March 2026, ahead of this deprecation.
What's Changing
To align with the AWS Lambda deprecation of Node.js v20, v2025.1 will be deprecated on June 1, 2026.
A new version, Platform v2026.03, will be released in March 2026 prior to the deprecation of 2025.1. This new version will reintroduce serverless app functions, enabling developers who rely on this capability to migrate their projects from v2025.1.
Starting on the sunset date, you will no longer be able to build or deploy projects using Platform v2025.1 to your HubSpot account.
When is this happening?
Platform v2025.1 will be deprecated on June 1, 2026.
Platform v2026.03 will be released in March 2026 to provide sufficient time for migration. We’ll post a separate announcement when v2026.03 is available.
Questions or comments? Join us in the developer forums.