megachangelog
Announcement

Deprecating Support for HubSpot v4 APIs

HubSpot v4 APIs will move to an unsupported state on March 30, 2027, and will no longer receive updates, bug fixes, or stability guarantees after that date.

On March 30, 2027, HubSpot v4 APIs will move to an unsupported state. After that date, v4 APIs will no longer receive updates, bug fixes, or stability guarantees from HubSpot.

 

apideprecationmigration

Source: original entry ↗

More from HubSpot

Follow HubSpot to get its new changes in your feed and email digest.

Security

HubSpot-hosted domains moving to TLS 1.2 minimum

HubSpot will automatically update the minimum TLS version for HubSpot-hosted domains from TLS 1.0 or 1.1 to TLS 1.2 on October 14th, enhancing security for all hosted domains.

securitytlsdomainsencryption
BreakingFall 2026

End of Support for v1-v3 APIs and Legacy Apps

HubSpot is ending support for v1-v3 APIs, legacy public apps, and legacy private apps effective September 2027. Customers and partners have a 12-month window from the announcement to migrate to supported alternatives.

apideprecationbreaking-changemigration
Announcement2026.09

Fall 2026 Spotlight - Developer and Builder Updates

HubSpot's Fall 2026 release introduces new features on Developer Platform 2026.09, including updated APIs, new beta APIs, and AI builder tools. This changelog covers non-breaking updates; see the separate breaking changes article for legacy API deprecations.

apideveloper-platformai-builderbeta
See all HubSpot changes →