# PnP iOS SDK - v8.3 to v8.4

> PnP iOS SDK - v8.3 to v8.4 | Embedded Wallets

# Migration guide from v8.3 to v8.4 for Web3Auth PnP iOS SDK

## Overview

This migration guide provides steps for upgrading from version 8.3(v8.3) to version 8.4(v8.4) of the Web3Auth PnP iOS SDK. The guide outlines significant breaking change in the `W3AInitParams`.

## Changes in detail

### `W3AInitParams` changes

From v8.4 onwards redirectUrl is a mandatory parameter in `W3AInitParams`.

#### Before (v8.3)

```swift title="Usage"

let web3auth = Web3Auth(W3AInitParams(
  clientId: "<your clientId>",
  network: .sapphire_mainnet,
))
```

#### After (v8.4)

```swift title="Usage"

let web3auth = Web3Auth(W3AInitParams(
  clientId: "<your clientId>",
  network: .sapphire_mainnet,
  redirectUrl: "bundleId://auth"
))
```