only keep the "merge" provider

apps/remix-ide-e2e/src/tests/plugin_api.ts

@@ -183,7 +183,7 @@ module.exports = {
   },
 
   'Should select another provider #group1': async function (browser: NightwatchBrowser) {
-    await clickAndCheckLog(browser, 'udapp:setEnvironmentMode', null, null, { context: 'vm-berlin' })
+    await clickAndCheckLog(browser, 'udapp:setEnvironmentMode', null, null, { context: 'vm-merge' })
     await browser
       .frameParent()
       .useCss()

apps/remix-ide-e2e/src/tests/runAndDeploy.test.ts

@@ -32,7 +32,7 @@ module.exports = {
 
   'Should sign message using account key #group2': function (browser: NightwatchBrowser) {
     browser.waitForElementVisible('*[data-id="settingsRemixRunSignMsg"]')
-      .switchEnvironment('vm-berlin')
+      .switchEnvironment('vm-merge')
       .pause(2000)
       .click('*[data-id="settingsRemixRunSignMsg"]')
       .pause(2000)

apps/remix-ide-e2e/src/tests/terminal.test.ts

@@ -94,7 +94,7 @@ module.exports = {
     browser
       .clickLaunchIcon('settings')
       .clickLaunchIcon('udapp')
-      .switchEnvironment('vm-london')
+      .switchEnvironment('vm-merge')
       .click('*[data-id="terminalClearConsole"]') // clear the terminal
       .clickLaunchIcon('filePanel')
       .click('*[data-id="treeViewDivtreeViewItem"]') // make sure we create the file at the root folder

apps/remix-ide-e2e/src/tests/transactionExecution.test.ts

@@ -159,7 +159,7 @@ module.exports = {
     browser
       .clickLaunchIcon('udapp')
       .clearTransactions()
-      .switchEnvironment('vm-london') // switch to London fork
+      .switchEnvironment('vm-merge') // switch to London fork
       .selectAccount('0xCA35b7d915458EF540aDe6068dFe2F44E8fa733c') // this account will be used for this test suite
       .click('.udapp_contractActionsContainerSingle > button')
       .clickInstance(0)

apps/remix-ide/src/app.js

@@ -27,7 +27,7 @@ import { StoragePlugin } from './app/plugins/storage'
 import { Layout } from './app/panels/layout'
 import { NotificationPlugin } from './app/plugins/notification'
 import { Blockchain } from './blockchain/blockchain.js'
-import { BerlinVMProvider, LondonVMProvider } from './app/providers/vm-provider'
+import { MergeVMProvider } from './app/providers/vm-provider'
 import { MainnetForkVMProvider } from './app/providers/mainnet-vm-fork-provider'
 import { SepoliaForkVMProvider } from './app/providers/sepolia-vm-fork-provider'
 import { GoerliForkVMProvider } from './app/providers/goerli-vm-fork-provider'
@@ -211,8 +211,7 @@ class AppComponent {
     const vmProviderMainnetFork = new MainnetForkVMProvider(blockchain)
     const vmProviderSepoliaFork = new SepoliaForkVMProvider(blockchain)
     const vmProviderGoerliFork = new GoerliForkVMProvider(blockchain)
-    const vmProviderBerlin = new BerlinVMProvider(blockchain)
-    const vmProviderLondon = new LondonVMProvider(blockchain)
+    const vmProviderMerge = new MergeVMProvider(blockchain)
     const hardhatProvider = new HardhatProvider(blockchain)
     const ganacheProvider = new GanacheProvider(blockchain)
     const foundryProvider = new FoundryProvider(blockchain)
@@ -279,8 +278,7 @@ class AppComponent {
       fetchAndCompile,
       dGitProvider,
       storagePlugin,
-      vmProviderBerlin,
-      vmProviderLondon,
+      vmProviderMerge,
       vmProviderSepoliaFork,
       vmProviderGoerliFork,
       vmProviderMainnetFork,

apps/remix-ide/src/app/providers/abstract-provider.tsx

@@ -113,7 +113,7 @@ export abstract class AbstractProvider extends Plugin implements IProvider {
       }
       this.call('notification', 'alert', modalContent)
     }
-    await this.call('udapp', 'setEnvironmentMode', { context: 'vm-london'})
+    await this.call('udapp', 'setEnvironmentMode', { context: 'vm-merge'})
     return
   }
 

apps/remix-ide/src/app/providers/vm-provider.tsx

@@ -42,32 +42,17 @@ export class BasicVMProvider extends Plugin implements IProvider {
   }
 }
 
-export class BerlinVMProvider extends BasicVMProvider {
+export class MergeVMProvider extends BasicVMProvider {
   constructor (blockchain) {
     super({
-      name: 'vm-berlin',
-      displayName: 'Remix VM (Berlin)',
+      name: 'vm-merge',
+      displayName: 'Remix VM (Merge)',
       kind: 'provider',
-      description: 'Remix VM (Berlin)',
+      description: 'Remix VM (Merge)',
       methods: ['sendAsync', 'init'],
       version: packageJson.version
     }, blockchain)
     this.blockchain = blockchain
-    this.fork = 'berlin'
-  }
-}
-
-export class LondonVMProvider extends BasicVMProvider {
-  constructor (blockchain) {
-    super({
-      name: 'vm-london',
-      displayName: 'Remix VM (London)',
-      kind: 'provider',
-      description: 'Remix VM (London)',
-      methods: ['sendAsync', 'init'],
-      version: packageJson.version
-    }, blockchain)
-    this.blockchain = blockchain
-    this.fork = 'london'
+    this.fork = 'merge'
   }
 }

apps/remix-ide/src/app/udapp/run-tab.js

@@ -133,11 +133,10 @@ export class RunTab extends ViewPlugin {
 
     // VM
     const titleVM = 'Execution environment is local to Remix.  Data is only saved to browser memory and will vanish upon reload.'
-    await addProvider('vm-london', 'Remix VM (London)', false, true, 'london', 'settingsVMLondonMode', titleVM)
-    await addProvider('vm-berlin', 'Remix VM (Berlin)', false, true, 'berlin', 'settingsVMBerlinMode', titleVM)
-    await addProvider('vm-mainnet-fork', 'Remix VM - Mainnet fork', false, true, 'london', 'settingsVMMainnetMode', titleVM)
-    await addProvider('vm-sepolia-fork', 'Remix VM - Sepolia fork', false, true, '', 'settingsVMSepoliaMode', titleVM)
-    await addProvider('vm-goerli-fork', 'Remix VM - Goerli fork', false, true, '', 'settingsVMGoerliMode', titleVM)
+    await addProvider('vm-merge', 'Remix VM (Merge)', false, true, 'merge', 'settingsVMMergeMode', titleVM)
+    await addProvider('vm-mainnet-fork', 'Remix VM - Mainnet fork', false, true, 'merge', 'settingsVMMainnetMode', titleVM)
+    await addProvider('vm-sepolia-fork', 'Remix VM - Sepolia fork', false, true, 'merge', 'settingsVMSepoliaMode', titleVM)
+    await addProvider('vm-goerli-fork', 'Remix VM - Goerli fork', false, true, 'merge', 'settingsVMGoerliMode', titleVM)
     await addProvider('vm-custom-fork', 'Remix VM - Custom fork', false, true, '', 'settingsVMCustomMode', titleVM)
 
     // external provider

apps/remix-ide/src/blockchain/execution-context.js

@@ -20,7 +20,7 @@ if (typeof window !== 'undefined' && typeof window.ethereum !== 'undefined') {
 export class ExecutionContext {
   constructor () {
     this.event = new EventManager()
-    this.executionContext = 'vm-london'
+    this.executionContext = 'vm-merge'
     this.lastBlock = null
     this.blockGasLimitDefault = 4300000
     this.blockGasLimit = this.blockGasLimitDefault
@@ -35,7 +35,7 @@ export class ExecutionContext {
 
   init (config) {
     if (config.get('settings/always-use-vm')) {
-      this.executionContext = 'vm-london'
+      this.executionContext = 'vm-merge'
     }
   }  
 
@@ -102,7 +102,7 @@ export class ExecutionContext {
 
   removeProvider (name) {
     if (name && this.customNetWorks[name]) {
-      if (this.executionContext === name) this.setContext('vm-london', null, null, null)
+      if (this.executionContext === name) this.setContext('vm-merge', null, null, null)
       delete this.customNetWorks[name]
       this.event.trigger('removeProvider', [name])
     }

libs/remix-ui/run-tab/src/lib/components/account.tsx

@@ -30,14 +30,7 @@ export function AccountUI (props: AccountProps) {
         })
         break
 
-      case 'vm-london':
-        setPlusOpt({
-          classList: '',
-          title: 'Create a new account'
-        })
-        break
-
-      case 'vm-berlin':
+      case 'vm-merge':
         setPlusOpt({
           classList: '',
           title: 'Create a new account'
@@ -76,7 +69,7 @@ export function AccountUI (props: AccountProps) {
       return props.tooltip('Account list is empty, please make sure the current provider is properly connected to remix')
     }
 
-    if (props.selectExEnv !== 'vm-london' && props.selectExEnv !== 'vm-berlin' && props.selectExEnv !== 'injected') {
+    if (props.selectExEnv !== 'vm-merge' && props.selectExEnv !== 'injected') {
       return props.modal('Passphrase to sign a message',
         <PassphrasePrompt
           message='Enter your passphrase for this account to sign the message'

libs/remix-ui/run-tab/src/lib/reducers/runTab.ts

@@ -115,7 +115,7 @@ export const runTabInitialState: RunTabState = {
   sendValue: '0',
   sendUnit: 'wei',
   gasLimit: 3000000,
-  selectExEnv: 'vm-london',
+  selectExEnv: 'vm-merge',
   personalMode: false,
   networkName: 'VM',
   providers: {
@@ -263,7 +263,7 @@ export const runTabReducer = (state: RunTabState = runTabInitialState, action: A
       return {
         ...state,
         selectExEnv: payload,
-        networkName: state.selectExEnv === 'vm-london' || state.selectExEnv === 'vm-berlin' ? 'VM' : state.networkName,
+        networkName: state.selectExEnv === 'vm-merge' ? 'VM' : state.networkName,
         accounts: {
           ...state.accounts,
           selectedAccount: '',