# PnP iOS SDK - v8.1 to v8.2

> PnP iOS SDK - v8.1 to v8.2 | Embedded Wallets

# Migration guide from v8.1 to v8.2 for Web3Auth PnP iOS SDK

## Overview

This migration guide provides steps for upgrading from version 8.1(v8.1) to version 8.2(v8.2) of the Web3Auth PnP iOS SDK. The guide outlines significant breaking change with the removal of `loginParams` from `launchWalletServices`.

## Changes in detail

### `launchWalletServices` method updates

From v8.2, `loginParams` is removed from the `launchWalletServices` method. Developers now only need to pass the `chainConfig` as the required argument.

#### Before (v8.1)

```swift title="Usage"
do {
  var chainConfig = ChainConfig(
    chainNamespace: ChainNamespace.eip155,
    chainId: "0x1",
    rpcTarget: "https://mainnet.infura.io/v3/${key}",
    ticker: "ETH"
  )

  // focus-start
  try await web3Auth?.launchWalletServices(
    W3ALoginParams(loginProvider: .GOOGLE),
    chainConfig: chainConfig
  )
  // focus-end
} catch {
  // Handle error
}
```

#### After (v8.2)

```swift title="Usage"
do {
  var chainConfig = ChainConfig(
    chainNamespace: ChainNamespace.eip155,
    chainId: "0x1",
    rpcTarget: "https://mainnet.infura.io/v3/${key}",
    ticker: "ETH"
  )

  // focus-start
  try await web3Auth?.launchWalletServices(
    chainConfig: chainConfig
  )
  // focus-end
} catch {
  // Handle error
}
```