web3.eth.accounts Migration Guide

Breaking Changes

web3.eth.accounts.create and wallet.create

In 1.x the create method has an optional parameter entropy.

In 4.x the create method does not have entropy as a parameter. Instead 4.x uses an audited package ethereum-cryptography/secp256k1 to generate private keys.

Accounts:

// In 1.x
const account = web3.eth.accounts.create('optionalEntropy'); // entropy is an optional parameter

// In 4.x
const account = web3.eth.accounts.create('optionalEntropy'); // will result in an error
const account = web3.eth.accounts.create(); // correct way

Wallets:

// In 1.x
const wallet = web3.eth.accounts.wallet.create(1, 'optionalEntropy'); // entropy is an optional parameter

// In 4.x
const account = web3.eth.accounts.wallet.create(1, 'optionalEntropy'); // will result in an error
const account = web3.eth.accounts.wallet.create(); // correct way