# UpdateInstanceRequestBody


## Fields

| Field                                                                                                                                                                                                                                                                                                                                                                                             | Type                                                                                                                                                                                                                                                                                                                                                                                              | Required                                                                                                                                                                                                                                                                                                                                                                                          | Description                                                                                                                                                                                                                                                                                                                                                                                       |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `testMode`                                                                                                                                                                                                                                                                                                                                                                                        | *JsonNullable<? extends Boolean>*                                                                                                                                                                                                                                                                                                                                                                 | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | Toggles test mode for this instance, allowing the use of test email addresses and phone numbers.<br/>Defaults to true for development instances.                                                                                                                                                                                                                                                  |
| `hibp`                                                                                                                                                                                                                                                                                                                                                                                            | *JsonNullable<? extends Boolean>*                                                                                                                                                                                                                                                                                                                                                                 | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | Whether the instance should be using the HIBP service to check passwords for breaches                                                                                                                                                                                                                                                                                                             |
| `enhancedEmailDeliverability`                                                                                                                                                                                                                                                                                                                                                                     | *JsonNullable<? extends Boolean>*                                                                                                                                                                                                                                                                                                                                                                 | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | The "enhanced_email_deliverability" feature will send emails from "verifications@clerk.dev" instead of your domain.<br/>This can be helpful if you do not have a high domain reputation.                                                                                                                                                                                                          |
| `supportEmail`                                                                                                                                                                                                                                                                                                                                                                                    | *JsonNullable<? extends String>*                                                                                                                                                                                                                                                                                                                                                                  | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | N/A                                                                                                                                                                                                                                                                                                                                                                                               |
| `clerkJsVersion`                                                                                                                                                                                                                                                                                                                                                                                  | *JsonNullable<? extends String>*                                                                                                                                                                                                                                                                                                                                                                  | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | N/A                                                                                                                                                                                                                                                                                                                                                                                               |
| `developmentOrigin`                                                                                                                                                                                                                                                                                                                                                                               | *JsonNullable<? extends String>*                                                                                                                                                                                                                                                                                                                                                                  | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | N/A                                                                                                                                                                                                                                                                                                                                                                                               |
| `allowedOrigins`                                                                                                                                                                                                                                                                                                                                                                                  | List<*String*>                                                                                                                                                                                                                                                                                                                                                                                    | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | For browser-like stacks such as browser extensions, Electron, or Capacitor.js the instance allowed origins need to be updated with the request origin value.<br/>For Chrome extensions popup, background, or service worker pages the origin is chrome-extension://extension_uiid. For Electron apps the default origin is http://localhost:3000. For Capacitor, the origin is capacitor://localhost. |
| ~~`cookielessDev`~~                                                                                                                                                                                                                                                                                                                                                                               | *Optional<? extends Boolean>*                                                                                                                                                                                                                                                                                                                                                                     | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | : warning: ** DEPRECATED **: This will be removed in a future release, please migrate away from it as soon as possible.<br/><br/>Whether the instance should operate in cookieless development mode (i.e. without third-party cookies).<br/>Deprecated: Please use `url_based_session_syncing` instead.                                                                                           |
| `urlBasedSessionSyncing`                                                                                                                                                                                                                                                                                                                                                                          | *Optional<? extends Boolean>*                                                                                                                                                                                                                                                                                                                                                                     | :heavy_minus_sign:                                                                                                                                                                                                                                                                                                                                                                                | Whether the instance should use URL-based session syncing in development mode (i.e. without third-party cookies).                                                                                                                                                                                                                                                                                 |