> For the complete documentation index, see [llms.txt](https://docs.caf.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.caf.io/caf-sdk/android/standalone-modules/caffacelivenesslite/changelog.md).

# Changelog

## Release notes

## Version 2.21.0

### **Release date:**

* 08/07/2026

### What's new

**Customize the liveness screen**

You can now brand the liveness screen through the new `uiCustomization` option in `CafLivenessConfig`. Colors, the app bar title, the logo and close icons, the font and the mask blur are all configurable. Every field is optional — anything you leave out keeps the default appearance, so existing integrations are unaffected.

```kotlin
val uiCustomization = UiCustomization(
    font = LivenessFont.ResFont(R.font.your_font),
    appBar = AppBarCustomization(
        title = "Identity check",
        titleColor = Color.WHITE,
        color = navyColor,
        logoIcon = R.drawable.your_logo,
        closeButton = R.drawable.your_close_icon,
    ),
    mask = MaskCustomization(isBlurEnabled = true, color = navyColor),
    prompt = PromptCustomization(
        textColor = Color.WHITE,
        backgroundColor = greenColor,
        isRounded = true,
    ),
)
val config = CafLivenessConfig(
    mobileToken = mobileToken,
    personId = personId,
    uiCustomization = uiCustomization
)

CafFaceLivenessLite.instance.startLiveness(
    context = context,
    config = config,
) { event -> /* ... */ }
```

Colors are color values (`@ColorInt`), not color resources — resolve resources with `ContextCompat.getColor(...)` before passing them. Icons and fonts are resource ids.

## Version 7.18.0

### **Release date:**

* 07/30/2026

### What's new:

#### **Dynamic iProov service location**

The SDK now follows the iProov SP provided by the backend. Server-side change — no integration changes required.

#### **Signed response on failure**

When a liveness attempt fails (for example, eyes closed or poor lighting), the SDK now also retrieves the transaction result and returns the `signedResponse` in the `Failure` event — previously available only on success. If the result can't be retrieved, an `Error` event is returned instead.

#### Breaking changes

The `LivenessLiteEvent` contract changed. Update your event handling:

| Before                          | After                                        |
| ------------------------------- | -------------------------------------------- |
| `Success(val response: String)` | `Success(val signedResponse: String)`        |
| `Failure(type, description)`    | `Failure(signedResponse, type, description)` |
| `Error(type, description)`      | `Error(type, description, cause)`            |

* `Success.response` was renamed to `Success.signedResponse`.
* `Failure` now includes `signedResponse`.
* `Error` now includes `cause` (the originating `Throwable`).
* `CafLivenessConfig.stage` now defaults to `CafStage.PROD` and no longer needs to be provided explicitly.

```kotlin
CafFaceLivenessLite.instance.startLiveness(
    context = context,
    config = CafLivenessConfig(
        mobileToken = mobileToken,
        personId = personId,
    ),
) { event ->
    when (event) {
        is LivenessLiteEvent.Success -> handleSuccess(event.signedResponse)
        is LivenessLiteEvent.Failure -> handleFailure(event.type, event.description)
        is LivenessLiteEvent.Error -> handleError(event.type, event.cause)
        LivenessLiteEvent.Cancelled -> handleCancelled()
        LivenessLiteEvent.Loading, LivenessLiteEvent.Loaded -> Unit
    }
}
```

Links:

{% content-ref url="/pages/SWa4fYvXU4QHS0rTEBa7" %}
[Face Liveness Lite](/caf-sdk/android/standalone-modules/caffacelivenesslite.md)
{% endcontent-ref %}

{% content-ref url="/pages/kzUUoJkdkppda386DUZv" %}
[Handling Failures](/caf-sdk/android/getting-started-with-the-sdk/handling-failures.md)
{% endcontent-ref %}

{% content-ref url="/pages/CjjPANiCm0TOnbldUgeg" %}
[Ui Customization](/caf-sdk/android/standalone-modules/caffacelivenesslite/ui-customization.md)
{% endcontent-ref %}

{% content-ref url="/pages/vsdoZhkDbnAXRhPVlR18" %}
[Changelog](/caf-sdk/android/standalone-modules/caffacelivenesslite/changelog.md)
{% endcontent-ref %}


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