Auth0 Third-party application creation default security mode breaking change date
From 2026-10-23, new third-party apps created via POST /api/v2/clients without a security mode get strict enhanced security automatically.
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More from Auth0
- Rules and HooksShutdown
Rules and Hooks stop executing and are removed after 2026-11-18; migrate to Actions.
- Legacy Custom DB User Import behaviorBreaking change
Custom database user imports will fully import users immediately on password reset or blocked first login instead of partial imports, from 2027-01-20.
- Uncapped user profile data (10KB limit)Deprecation
User profiles above a 10KB limit are deprecated as of 2027-03-04; oversized profiles within the extended allowance still succeed with warnings.
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