Zendesk API breaking changes

Coming up 1

1. April 30, 2027 API token authentication stops working on calls authenticated with an API token Stops workingin 189 days

Deprecated, no date yet 2

1. No date GET /api/v2/apps/locations/{} is deprecated Deprecated, no date
2. No date POST /api/v2/oauth/tokens is deprecated Deprecated, no date

Already in effect 5

1. July 1, 2026 The Legacy Custom Objects API stops working Stopped working
2. July 1, 2026 The Legacy Custom Objects relationships API stops working Stopped working
3. January 12, 2026 Basic authentication with an email and password stops working on calls authenticated with an email and password Stopped working
4. May 19, 2023 PUT /api/v2/users/me/merge stops working Stopped working
5. April 30, 2023 The NPS API stops working Stopped working

Where Okapi reads it

• Changelog developer.zendesk.com/api-reference/changelog/changelog/
• OpenAPI spec developer.zendesk.com/zendesk/oas.yaml