common: set the default hard fork to merge

packages/block/src/types.ts

@@ -18,7 +18,7 @@ export interface BlockOptions {
    * Default: {@link Common} object set to `mainnet` and the HF currently defined as the default
    * hardfork in the {@link Common} class.
    *
-   * Current default hardfork: `london`
+   * Current default hardfork: `merge`
    */
   common?: Common
   /**

packages/client/test/integration/merge.spec.ts

@@ -37,7 +37,7 @@ tape('[Integration:Merge]', async (t) => {
         },
       ],
     },
-    { baseChain: ChainCommon.Goerli }
+    { baseChain: ChainCommon.Goerli, hardfork: Hardfork.London }
   )
   const commonPoW = Common.custom(
     {

packages/client/test/integration/miner.spec.ts

@@ -31,7 +31,7 @@ tape('[Integration:Miner]', async (t) => {
         },
       },
     },
-    { baseChain: ChainCommon.Goerli }
+    { baseChain: ChainCommon.Goerli, hardfork: Hardfork.London }
   )
   const accounts: [Address, Buffer][] = [
     [

packages/common/README.md

@@ -41,7 +41,7 @@ const common = new Common({ chain: 'mainnet', hardfork: 'london' })
 
 If no hardfork is provided, the common is initialized with the default hardfork.
 
-Current `DEFAULT_HARDFORK`: `Hardfork.London`
+Current `DEFAULT_HARDFORK`: `Hardfork.Merge`
 
 Here are some simple usage examples:
 
@@ -214,8 +214,8 @@ library supported:
 - `istanbul` (`Hardfork.Instanbul`)
 - `muirGlacier` (`Hardfork.MuirGlacier`)
 - `berlin` (`Hardfork.Berlin`) (since `v2.2.0`)
-- `london` (`Hardfork.London`) (`DEFAULT_HARDFORK`) (since `v2.4.0`)
-- `merge` (`Hardfork.Merge`) (since `v2.5.0`)
+- `london` (`Hardfork.London`) (since `v2.4.0`)
+- `merge` (`Hardfork.Merge`) (`DEFAULT_HARDFORK`) (since `v2.5.0`)
 
 ### Future Hardforks
 

packages/common/src/chains/goerli.json

@@ -2,7 +2,7 @@
   "name": "goerli",
   "chainId": 5,
   "networkId": 5,
-  "defaultHardfork": "london",
+  "defaultHardfork": "merge",
   "consensus": {
     "type": "poa",
     "algorithm": "clique",

packages/common/src/chains/ropsten.json

@@ -2,7 +2,7 @@
   "name": "ropsten",
   "chainId": 3,
   "networkId": 3,
-  "defaultHardfork": "london",
+  "defaultHardfork": "merge",
   "consensus": {
     "type": "pow",
     "algorithm": "ethash",

packages/common/src/chains/sepolia.json

@@ -2,7 +2,7 @@
   "name": "sepolia",
   "chainId": 11155111,
   "networkId": 11155111,
-  "defaultHardfork": "london",
+  "defaultHardfork": "merge",
   "consensus": {
     "type": "pow",
     "algorithm": "ethash",

packages/common/src/common.ts

@@ -186,7 +186,7 @@ export class Common extends EventEmitter {
     super()
     this._customChains = opts.customChains ?? []
     this._chainParams = this.setChain(opts.chain)
-    this.DEFAULT_HARDFORK = this._chainParams.defaultHardfork ?? Hardfork.London
+    this.DEFAULT_HARDFORK = this._chainParams.defaultHardfork ?? Hardfork.Merge
     this._hardfork = this.DEFAULT_HARDFORK
     if (isTruthy(opts.hardfork)) {
       this.setHardfork(opts.hardfork)

packages/evm/README.md

@@ -126,8 +126,9 @@ Currently the following hardfork rules are supported:
 - `berlin` (`v5.2.0`+)
 - `london` (`v5.4.0`+)
 - `arrowGlacier` (only `mainnet`) (`v5.6.0`+)
+- `merge` (only `goerli`, `ropsten` and soon `mainnet`)
 
-Default: `london` (taken from `Common.DEFAULT_HARDFORK`)
+Default: `merge` (taken from `Common.DEFAULT_HARDFORK`)
 
 A specific hardfork EVM ruleset can be activated by passing in the hardfork
 along the `Common` instance to the outer `@ethereumjs/vm` instance.

packages/tx/README.md

@@ -35,7 +35,7 @@ All types of transaction objects are frozen with `Object.freeze()` which gives y
 
 The `Transaction` constructor receives a parameter of an [`@ethereumjs/common`](https://github.com/ethereumjs/ethereumjs-monorepo/blob/master/packages/common) object that lets you specify the chain and hardfork to be used. If there is no `Common` provided the chain ID provided as a paramter on typed tx or the chain ID derived from the `v` value on signed EIP-155 conforming legacy txs will be taken (introduced in `v3.2.1`). In other cases the chain defaults to `mainnet`.
 
-Base default HF (determined by `Common`): `london`
+Base default HF (determined by `Common`): `merge`
 
 Starting with `v3.2.1` the tx library now deviates from the default HF for typed tx using the following rule: "The default HF is the default HF from `Common` if the tx type is active on that HF. Otherwise it is set to the first greater HF where the tx is active."
 

packages/tx/src/baseTransaction.ts

@@ -85,7 +85,7 @@ export abstract class BaseTransaction<TransactionObject> {
    *
    * @hidden
    */
-  protected DEFAULT_HARDFORK: string | Hardfork = Hardfork.London
+  protected DEFAULT_HARDFORK: string | Hardfork = Hardfork.Merge
 
   constructor(txData: TxData | AccessListEIP2930TxData | FeeMarketEIP1559TxData, opts: TxOptions) {
     const { nonce, gasLimit, to, value, data, v, r, s, type } = txData

packages/vm/src/types.ts

@@ -66,7 +66,7 @@ export interface VMOpts {
    * ### Possible Values
    *
    * - `chain`: all chains supported by `Common` or a custom chain
-   * - `hardfork`: `mainnet` hardforks up to the `London` hardfork
+   * - `hardfork`: `mainnet` hardforks up to the `Merge` hardfork
    * - `eips`: `2537` (usage e.g. `eips: [ 2537, ]`)
    *
    * Note: check the associated `@ethereumjs/evm` instance options
@@ -77,7 +77,7 @@ export interface VMOpts {
    * Default setup if no `Common` instance is provided:
    *
    * - `chain`: `mainnet`
-   * - `hardfork`: `london`
+   * - `hardfork`: `merge`
    * - `eips`: `[]`
    */
   common?: Common

packages/vm/tests/tester/config.ts

@@ -10,7 +10,7 @@ export const DEFAULT_TESTS_PATH = path.resolve('../ethereum-tests')
 /**
  * Default hardfork rules to run tests against
  */
-export const DEFAULT_FORK_CONFIG = 'London'
+export const DEFAULT_FORK_CONFIG = 'Merge'
 
 /**
  * Tests which should be fixed