- Added a new security option in Advanced Tenant Settings to hide existence of usernames/emails in signup API responses.
- Can be enabled via the dashboard or Management API v2; new tenants have it enabled by default.
- Recommended to enable this setting to prevent exposure of personal user information.
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Introduces early‑access Custom Rate Limits allowing per‑client or group throttling of Authentication API requests via API‑based self‑service configuration.
Introduces GA Flexible Password Policy replacing legacy settings with a unified `options.password_options` object for granular controls (composition, history, dictionary, profile data).
Custom signup/login fields and consent checkboxes now also apply to Social and Enterprise connections.