Bump @ethereumjs/common from 4.1.0 to 4.2.0

[dependabot]

Bumps @ethereumjs/common from 4.1.0 to 4.2.0.

Release notes

Sourced from @​ethereumjs/common's releases.

@​ethereumjs/common v4.2.0

Dencun Hardfork Support

While all EIPs contained in the upcoming Dencun hardfork run pretty much stable within the EthereumJS libraries for quite some time, this is the first release round which puts all this in the official space and removes "experimental" labeling preparing for an imminent Dencun launch on the last testnets (Holesky) and mainnet activation! 🎉

Dencun hardfork on the execution side is called Cancun and can be activated within the EthereumJS libraries (default hardfork still Shanghai) with a following common instance:

import * as kzg from 'c-kzg'
import { Common, Chain, Hardfork } from '@ethereumjs/common'
import { initKZG } from '@ethereumjs/util'
initKZG(kzg, __dirname + '/../../client/src/trustedSetups/official.txt')
const common = new Common({
chain: Chain.Mainnet,
hardfork: Hardfork.Cancun,
customCrypto: { kzg: kzg },
})
console.log(common.customCrypto.kzg) // Should print the initialized KZG interface

Note that the kzg initialization slightly changed from previous experimental releases and a custom KZG instance is now passed to Common by using the customCrypto parameter, see PR #3262.

At the moment using the Node.js bindings for the c-kzg library is the only option to get KZG related functionality to work, note that this solution is not browser compatible. We are currently working on a WASM build of that respective library. Let us know on the urgency of this task! 😆

While EIP-4844 - activating shard blob transactions - is for sure the most prominent EIP from this hardfork, enabling better scaling for the Ethereum ecosystem by providing cheaper block space for L2s, there are in total 6 EIPs contained in the Dencun hardfork. The following is an overview of which EthereumJS libraries mainly implement the various EIPs:

• EIP-1153: Transient storage opcodes (@ethereumjs/evm)
• EIP-4788: Beacon block root in the EVM (@ethereumjs/block, @ethereumjs/evm, @ethereumjs/vm)
• EIP-4844: Shard Blob Transactions (@ethereumjs/tx, @ethereumjs/block, @ethereumjs/evm)
• EIP-5656: MCOPY - Memory copying instruction (@ethereumjs/evm)
• EIP-6780: SELFDESTRUCT only in same transaction (@ethereumjs/vm)
• EIP-7516: BLOBBASEFEE opcode (@ethereumjs/block, @ethereumjs/evm)

WASM Crypto Support

With this release round there is a new way to replace the native JS crypto primitives used within the EthereumJS ecosystem by custom/other implementations in a controlled fashion, see PR #3192.

This can e.g. be used to replace time-consuming primitives like the commonly used keccak256 hash function with a more performant WASM based implementation.

The following is an example using the @​polkadot/wasm-crypto package:

import { keccak256, waitReady } from '@polkadot/wasm-crypto'
import { Chain, Common } from '@ethereumjs/common'
import { Block } from '@ethereumjs/block'
const main = async () => {
// @​polkadot/wasm-crypto specific initialization
</tr></table>

... (truncated)

Commits

• b258fd9 New Releases (Dencun, ESM Refactor, Trie/SM Proof Functionality, WASM Crypto,...
• 45d0336 common: schedule cancun for mainnet (#3270)
• a2da337 Monorepo: Make some errors more detailed (#3260)
• b8e9d14 Add kzg to common.customCrypto (#3262)
• 398041d evm: make profiler more accurate (#3247)
• 9e57980 Client: fix test nesting and other vitest issues (#3266)
• 4218d70 Remove proofTrie patern (#3263)
• 102f0da Trie API documentation updates (#3267)
• 0ea97e7 client: kaustinen syncing (#3179)
• 5be55b2 Trie proof API refactor (#2949)
• Additional commits viewable in compare view

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[dependabot]

Looks like @ethereumjs/common is up-to-date now, so this is no longer needed.