# Versioning

## <mark style="background-color:green;">Get the Library Version</mark>

```typescript
getLibraryVersion(): string
```

### Returns

Version string as defined in the `package.json` file

### Example

```typescript
console.log(`You are using client library v${zkClient.getLibraryVersion()}`);
// output: You are using client library v5.4.0
```

## <mark style="background-color:green;">Get the Relayer Version</mark>

```typescript
async getRelayerVersion(): Promise<ServiceVersion>
```

### Returns

`Promise` returns [`ServiceVersion`](/implementation/client-library-sdk/common-types.md#service-version): current relayer version

### Example

```typescript
const relayerVer = await zkClient.getRelayerVersion();
console.log(`We are communicating with relayer ${relayerVer.ref}`);
// output: We are communicating with relayer v4.3.0
```

## <mark style="background-color:green;">Get the Delegated Prover Version</mark>

```typescript
async getProverVersion(): Promise<ServiceVersion>
```

{% hint style="info" %}
The method will throw an `InternalError` if the delegated prover isn't configured for the current pool during client initialization.
{% endhint %}

### Returns

`Promise` returns [`ServiceVersion`](/implementation/client-library-sdk/common-types.md#service-version): current delegated prover version

### Example

```typescript
try {
    const proverVer = await zkClient.getProverVersion();
    console.log(`Delegated prover ${relayerVer.ref}`);
} catch (err) {
    console.log('Delegated prover is unavailable');
}
// output: Delegated prover v0.1.0
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.zkbob.com/implementation/client-library-sdk/account-less-mode-operations/versioning.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.