> For the complete documentation index, see [llms.txt](https://developers-apps-in-toss.toss.im/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers-apps-in-toss.toss.im/documentation/api-and-sdk-en/common/network-environment/version.md).

# Version

### 1. Getting the Toss app version (`getTossAppVersion`)

`getTossAppVersion` This function gets the Toss app version. For example, `5.206.0`it returns in a format like this. It is used to log the Toss app version, or when a specific feature should run only on versions above a certain one.

**Signature**

```typescript
function getTossAppVersion(): string;
```

**Return value**

* string

  Toss app version

**Example**

{% tabs %}
{% tab title="js" %}

```js
import { getTossAppVersion } from '@apps-in-toss/web-framework';

const tossAppVersion = getTossAppVersion();
```

{% endtab %}

{% tab title="React" %}

```tsx
import { getTossAppVersion } from '@apps-in-toss/web-framework';
import { Text } from '@toss/tds-mobile';

function TossAppVersionPage() {
  const tossAppVersion = getTossAppVersion();

  return <Text>{tossAppVersion}</Text>;
}
```

{% endtab %}

{% tab title="React Native" %}

```tsx
import { getTossAppVersion } from '@apps-in-toss/framework';
import { Text } from '@toss/tds-react-native';

function TossAppVersionPage() {
  const tossAppVersion = getTossAppVersion();

  return <Text>{tossAppVersion}</Text>;
}
```

{% endtab %}
{% endtabs %}

***

### 2. Checking the app's minimum version (`isMinVersionSupported`)

This function checks whether the version of the Toss app currently running satisfies the minimum version requirements passed as a parameter. When a specific feature works only in the latest version, you can guide users to update the app.

**Signature**

```typescript
function isMinVersionSupported(minVersions: {
  android: `${number}.${number}.${number}` | 'always' | 'never';
  ios: `${number}.${number}.${number}` | 'always' | 'never';
}): boolean;
```

**Parameter**

* **minVersions** · Required · `Object`

  An object that specifies the minimum version requirements for each platform.

  * **minVersions.android** · Required · `(`${number}.${number}.${number} `| &#39;always&#39; | &#39;never&#39;)`

    This is the minimum version requirement for the Android platform.
  * **minVersions.ios** · Required · `(`${number}.${number}.${number} `| &#39;always&#39; | &#39;never&#39;)`

    This is the minimum version requirement for the iOS platform.

**Return value**

* boolean

  Returns true if the current app version is at or above the minimum version, otherwise false.

**Example**

{% tabs %}
{% tab title="js" %}

```js
import { isMinVersionSupported } from '@apps-in-toss/web-framework';

const isSupported = isMinVersionSupported({
  android: '1.2.0',
  ios: '1.3.0',
});
```

{% endtab %}

{% tab title="React" %}

```tsx
import { isMinVersionSupported } from '@apps-in-toss/web-framework';
import { Text } from '@toss/tds-mobile';

function VersionCheck() {
  const isSupported = isMinVersionSupported({
    android: '1.2.0',
    ios: '1.3.0',
  });

  return <div>{!isSupported && <Text>An update to the latest version is required.</Text>};
}
```

{% endtab %}

{% tab title="React Native" %}

```tsx
import { isMinVersionSupported } from '@apps-in-toss/framework';
import { Text } from '@toss/tds-react-native';
import { View } from 'react-native';

function VersionCheck() {
  const isSupported = isMinVersionSupported({
    android: '1.2.0',
    ios: '1.3.0',
  });

  return <View>{!isSupported && <Text>An update to the latest version is required.</Text>}</View>;
}
```

{% endtab %}
{% endtabs %}


---

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