diff --git a/apps/remix-ide-e2e/src/examples/example-contracts.ts b/apps/remix-ide-e2e/src/examples/example-contracts.ts
index 467f35ca3dd..3ab12305e2c 100644
--- a/apps/remix-ide-e2e/src/examples/example-contracts.ts
+++ b/apps/remix-ide-e2e/src/examples/example-contracts.ts
@@ -1,6 +1,6 @@
 'use strict'
 
-const storage = `pragma solidity >=0.7.0 <0.8.0;
+const storage = `pragma solidity >=0.7.0 <0.9.0;
 
 /**
  * @title Storage
@@ -27,7 +27,7 @@ contract Storage {
     }
 }`
 
-const owner = `pragma solidity >=0.7.0 <0.8.0;
+const owner = `pragma solidity >=0.7.0 <0.9.0;
 
 /**
  * @title Owner
@@ -77,7 +77,7 @@ contract Owner {
     }
 }`
 
-const ballot = `pragma solidity >=0.7.0 <0.8.0;
+const ballot = `pragma solidity >=0.7.0 <0.9.0;
 
 /** 
  * @title Ballot
@@ -281,7 +281,7 @@ contract Ballot {
     }
 }`
 
-const ballotTest = `pragma solidity >=0.4.22 <0.8.0;
+const ballotTest = `pragma solidity >=0.4.22 <0.9.0;
 import "remix_tests.sol"; // this import is automatically injected by Remix.
 import "../3_Ballot.sol";
 
diff --git a/apps/remix-ide-e2e/src/tests/ballot.test.ts b/apps/remix-ide-e2e/src/tests/ballot.test.ts
index 47281970067..b58b3f0bb43 100644
--- a/apps/remix-ide-e2e/src/tests/ballot.test.ts
+++ b/apps/remix-ide-e2e/src/tests/ballot.test.ts
@@ -40,12 +40,12 @@ module.exports = {
     browser.pause(500)
       .click('*[data-id="txLoggerDebugButton0x41fab8ea5b1d9fba5e0a6545ca1a2d62fff518578802c033c2b9a031a01c31b3"]')
       .waitForElementVisible('*[data-id="buttonNavigatorJumpPreviousBreakpoint"]')
-    // .clickLaunchIcon('debugger')
+      // .clickLaunchIcon('debugger')
       .click('*[data-id="buttonNavigatorJumpPreviousBreakpoint"]')
       .pause(2000)
       .waitForElementVisible('#stepdetail')
-      .goToVMTraceStep(79)
-      .pause(1000)
+      .goToVMTraceStep(144)
+      // .pause(1000)
       .checkVariableDebug('soliditystate', stateCheck)
       .checkVariableDebug('soliditylocals', localsCheck)
   },
diff --git a/apps/remix-ide-e2e/src/tests/debugger.test.ts b/apps/remix-ide-e2e/src/tests/debugger.test.ts
index e28b0fa7751..6d7f3db4a86 100644
--- a/apps/remix-ide-e2e/src/tests/debugger.test.ts
+++ b/apps/remix-ide-e2e/src/tests/debugger.test.ts
@@ -16,7 +16,7 @@ module.exports = {
   'Should launch debugger': function (browser: NightwatchBrowser) {
     browser.addFile('blah.sol', sources[0]['browser/blah.sol'])
       .clickLaunchIcon('udapp')
-      .waitForElementPresent('*[title="Deploy - transact (not payable)"]', 45000)
+      .waitForElementPresent('*[title="Deploy - transact (not payable)"]', 65000)
       .click('*[title="Deploy - transact (not payable)"]')
       .debugTransaction(0)
       .assert.containsText('*[data-id="sidePanelSwapitTitle"]', 'DEBUGGER')
@@ -40,12 +40,13 @@ module.exports = {
   'Should debug transaction using slider': function (browser: NightwatchBrowser) {
     browser.waitForElementVisible('*[data-id="verticalIconsKindudapp"]')
       .waitForElementVisible('*[data-id="slider"]')
-      .click('*[data-id="slider"]')
-      .setValue('*[data-id="slider"]', '50')
+      // eslint-disable-next-line dot-notation
+      .execute(function () { document.getElementById('slider')['value'] = '50' }) // It only moves slider to 50 but vm traces are not updated
+      .setValue('*[data-id="slider"]', new Array(1).fill(browser.Keys.RIGHT_ARROW))
       .pause(2000)
       .click('*[data-id="dropdownPanelSolidityLocals"]')
       .assert.containsText('*[data-id="solidityLocals"]', 'no locals')
-      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n92')
+      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n51')
   },
 
   'Should step back and forward transaction': function (browser: NightwatchBrowser) {
@@ -53,12 +54,12 @@ module.exports = {
       .waitForElementPresent('*[data-id="buttonNavigatorIntoBack"]')
       .scrollAndClick('*[data-id="buttonNavigatorIntoBack"]')
       .pause(2000)
-      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n91')
-      .assert.containsText('*[data-id="stepdetail"]', 'execution step:\n91')
+      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n50')
+      .assert.containsText('*[data-id="stepdetail"]', 'execution step:\n50')
       .click('*[data-id="buttonNavigatorIntoForward"]')
       .pause(2000)
-      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n92')
-      .assert.containsText('*[data-id="stepdetail"]', 'execution step:\n92')
+      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n51')
+      .assert.containsText('*[data-id="stepdetail"]', 'execution step:\n51')
   },
 
   'Should jump through breakpoints': function (browser: NightwatchBrowser) {
@@ -71,17 +72,14 @@ module.exports = {
       .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n0')
       .assert.containsText('*[data-id="stepdetail"]', 'execution step:\n0')
       .click('*[data-id="buttonNavigatorJumpNextBreakpoint"]')
-      .pause(2000)
-      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n184')
-      .assert.containsText('*[data-id="stepdetail"]', 'execution step:\n184')
+      .pause(10000)
+      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n348')
+      .assert.containsText('*[data-id="stepdetail"]', 'execution step:\n348')
   },
 
   'Should display solidity imported code while debugging github import': function (browser: NightwatchBrowser) {
     browser
       .clickLaunchIcon('solidity')
-      .setSolidityCompilerVersion('soljson-v0.8.0+commit.c7dfd78e.js')
-      .pause(2000)
-      .clickLaunchIcon('udapp')
       .testContracts('externalImport.sol', sources[1]['browser/externalImport.sol'], ['ERC20'])
       .clickLaunchIcon('udapp')
       .waitForElementPresent('*[title="Deploy - transact (not payable)"]', 35000)
@@ -154,8 +152,10 @@ module.exports = {
       .pause(2000)
       .debugTransaction(6)
       .waitForElementVisible('*[data-id="slider"]')
-      .click('*[data-id="slider"]')
-      .setValue('*[data-id="slider"]', '5000')
+      // .setValue('*[data-id="slider"]', '5000') // Like this, setValue doesn't work properly for input type = range
+      // eslint-disable-next-line dot-notation
+      .execute(function () { document.getElementById('slider')['value'] = '7450' }) // It only moves slider to 7450 but vm traces are not updated
+      .setValue('*[data-id="slider"]', new Array(3).fill(browser.Keys.RIGHT_ARROW)) // This will press NEXT 3 times and will update the trace details
       .waitForElementPresent('*[data-id="treeViewDivtreeViewItemarray"]')
       .click('*[data-id="treeViewDivtreeViewItemarray"]')
       .waitForElementPresent('*[data-id="treeViewDivtreeViewLoadMore"]')
@@ -166,7 +166,6 @@ module.exports = {
   'Should debug using generated sources': function (browser: NightwatchBrowser) {
     browser
       .clickLaunchIcon('solidity')
-      .setSolidityCompilerVersion('soljson-v0.7.2+commit.51b20bc0.js')
       .pause(2000)
       .testContracts('withGeneratedSources.sol', sources[4]['browser/withGeneratedSources.sol'], ['A'])
       .clickLaunchIcon('udapp')
@@ -189,8 +188,8 @@ module.exports = {
     browser
       .addFile('test_jsGetTrace.js', { content: jsGetTrace })
       .executeScript('remix.exeCurrent()')
-      .pause(3000)
-      .journalChildIncludes('{ "gas": "0x2dc6c0", "return": "0x", "structLogs":')
+      .pause(5000)
+      .journalChildIncludes('result { "gas": "0x5863", "return": "0x0000000000000000000000000000000000000000000000000000000000000000", "structLogs":')
   },
 
   'Should call the debugger api: debug': function (browser: NightwatchBrowser) {
@@ -200,15 +199,16 @@ module.exports = {
       .pause(3000)
       .clickLaunchIcon('debugger')
       .waitForElementVisible('*[data-id="slider"]')
-      .click('*[data-id="slider"]')
-      .setValue('*[data-id="slider"]', '5')
+      // eslint-disable-next-line dot-notation
+      .execute(function () { document.getElementById('slider')['value'] = '153' }) // It only moves slider to 153 but vm traces are not updated
+      .setValue('*[data-id="slider"]', new Array(1).fill(browser.Keys.RIGHT_ARROW))
       .pause(1000)
     /*
       setting the slider to 5 leads to "vm trace step: 91" for chrome and "vm trace step: 92" for firefox
       => There is something going wrong with the nightwatch API here.
       As we are only testing if debugger is active, this is ok to keep that for now.
     */
-      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n9')
+      .assert.containsText('*[data-id="stepdetail"]', 'vm trace step:\n154')
       .end()
   },
 
@@ -219,7 +219,7 @@ const sources = [
   {
     'browser/blah.sol': {
       content: `
-    pragma solidity >=0.7.0 <0.8.0;
+    pragma solidity >=0.7.0 <0.9.0;
  
     contract Kickstarter {
 
@@ -279,7 +279,7 @@ const sources = [
   {
     'browser/locals.sol': {
       content: `
-      pragma solidity ^0.7.0;
+      pragma solidity ^0.8.0;
       contract testLocals {
         function t () public {
             uint[] memory array = new uint[](150);
@@ -369,9 +369,9 @@ const localVariable_step717_ABIEncoder = { // eslint-disable-line
   }
 }
 
-const jsGetTrace = `(async () => {    
+const jsGetTrace = `(async () => {
   try {
-      const result = await remix.call('debugger', 'getTrace', '0xb175c3c9a9cd6bee3b6cc8be3369a945ac9611516005f8cba27a43486ff2bc50')
+      const result = await remix.call('debugger', 'getTrace', '0xbf309c0d71579d595f04a42e89d66d1ec17523dd3edea710b03f46a9b82ee0af')
       console.log('result ', result)
   } catch (e) {
       console.log(e.message)
@@ -380,7 +380,7 @@ const jsGetTrace = `(async () => {
 
 const jsDebug = `(async () => {    
   try {
-      const result = await remix.call('debugger', 'debug', '0xb175c3c9a9cd6bee3b6cc8be3369a945ac9611516005f8cba27a43486ff2bc50')
+      const result = await remix.call('debugger', 'debug', '0xbf309c0d71579d595f04a42e89d66d1ec17523dd3edea710b03f46a9b82ee0af')
       console.log('result ', result)
   } catch (e) {
       console.log(e.message)
diff --git a/apps/remix-ide-e2e/src/tests/fileManager_api.test.ts b/apps/remix-ide-e2e/src/tests/fileManager_api.test.ts
index df7d0106a61..651bb2aeedf 100644
--- a/apps/remix-ide-e2e/src/tests/fileManager_api.test.ts
+++ b/apps/remix-ide-e2e/src/tests/fileManager_api.test.ts
@@ -55,7 +55,7 @@ module.exports = {
       .addFile('copyFile.js', { content: executeCopyFile })
       .executeScript('remix.exeCurrent()')
       .pause(2000)
-      .journalLastChildIncludes('pragma solidity >=0.7.0 <0.8.0;')
+      .journalLastChildIncludes('pragma solidity >=0.7.0 <0.9.0;')
   },
 
   'Should execute `rename` api from file manager external api': function (browser: NightwatchBrowser) {
diff --git a/apps/remix-ide-e2e/src/tests/runAndDeploy.ts b/apps/remix-ide-e2e/src/tests/runAndDeploy.ts
index cf94e72a46c..8c24ae3bb84 100644
--- a/apps/remix-ide-e2e/src/tests/runAndDeploy.ts
+++ b/apps/remix-ide-e2e/src/tests/runAndDeploy.ts
@@ -55,9 +55,9 @@ module.exports = {
       .waitForElementPresent('*[data-id="Deploy - transact (not payable)"]', 45000)
       .click('*[data-id="Deploy - transact (not payable)"]')
       .pause(5000)
-      .testFunction('0x82f6c88a909b49d6cc003fb302a6e0184c3f08e942b62e1c95dec326d4c6020b', {
+      .testFunction('0xcc391e151ace69f4cfb51cda42fb6c2e1092f28c8c2757af20b1aae5ec076ead', {
         status: 'true Transaction mined and execution succeed',
-        'transaction hash': '0x82f6c88a909b49d6cc003fb302a6e0184c3f08e942b62e1c95dec326d4c6020b'
+        'transaction hash': '0xcc391e151ace69f4cfb51cda42fb6c2e1092f28c8c2757af20b1aae5ec076ead'
       })
   },
 
@@ -208,7 +208,7 @@ const sources = [
     'browser/Greet.sol': {
       content:
       `
-      pragma solidity ^0.7.0;
+      pragma solidity ^0.8.0;
       contract helloWorld {
           string public message;
           
diff --git a/apps/remix-ide-e2e/src/tests/signingMessage.test.ts b/apps/remix-ide-e2e/src/tests/signingMessage.test.ts
index 41e834352ab..c25179ecb66 100644
--- a/apps/remix-ide-e2e/src/tests/signingMessage.test.ts
+++ b/apps/remix-ide-e2e/src/tests/signingMessage.test.ts
@@ -59,7 +59,7 @@ const sources = [
   {
     'browser/signMassage.sol': {
       content: `
-    pragma solidity >=0.4.22 <0.8.0;
+    pragma solidity >=0.4.22 <0.9.0;
     contract SignMassageTest {
       function testRecovery(bytes32 h, uint8 v, bytes32 r, bytes32 s) public pure returns (address) {
           return ecrecover(h, v, r, s);
diff --git a/apps/remix-ide-e2e/src/tests/solidityUnittests.test.ts b/apps/remix-ide-e2e/src/tests/solidityUnittests.test.ts
index d75408dd032..c2f0daf2c52 100644
--- a/apps/remix-ide-e2e/src/tests/solidityUnittests.test.ts
+++ b/apps/remix-ide-e2e/src/tests/solidityUnittests.test.ts
@@ -185,7 +185,7 @@ const sources = [
   {
     'browser/simple_storage.sol': {
       content: `
-      pragma solidity >=0.4.22 <0.8.0;
+      pragma solidity >=0.4.22 <0.9.0;
 
       contract SimpleStorage {
         uint public storedData;
@@ -206,7 +206,7 @@ const sources = [
     },
     'browser/tests/simple_storage_test.sol': {
       content: `
-      pragma solidity >=0.4.22 <0.8.0;
+      pragma solidity >=0.4.22 <0.9.0;
       import "remix_tests.sol";
       import "../simple_storage.sol";
 
@@ -235,7 +235,7 @@ const sources = [
     },
     'browser/ks2a.sol': {
       content: `
-      pragma solidity >=0.4.22 <0.8.0;
+      pragma solidity >=0.4.22 <0.9.0;
       contract Kickstarter {
           enum State { Started, Completed }
       
@@ -289,7 +289,7 @@ const sources = [
     },
     'browser/tests/ks2b_test.sol': {
       content: `
-      pragma solidity >=0.4.22 <0.8.0;
+      pragma solidity >=0.4.22 <0.9.0;
       pragma experimental ABIEncoderV2;
 
       import "remix_tests.sol"; // this import is automatically injected by Remix.
diff --git a/apps/remix-ide-e2e/src/tests/transactionExecution.test.ts b/apps/remix-ide-e2e/src/tests/transactionExecution.test.ts
index 9e3cd64d8f4..6445ba38b3d 100644
--- a/apps/remix-ide-e2e/src/tests/transactionExecution.test.ts
+++ b/apps/remix-ide-e2e/src/tests/transactionExecution.test.ts
@@ -178,7 +178,7 @@ const sources = [
         _a = msg.sender;
     }
 
-    function retunValues2 () public returns (byte _b, bytes2 _b2, bytes3 _b3, bytes memory _blit, bytes5 _b5, bytes6 _b6, string memory _str, bytes7 _b7, bytes22 _b22, bytes32 _b32)  {
+    function retunValues2 () public returns (bytes1 _b, bytes2 _b2, bytes3 _b3, bytes memory _blit, bytes5 _b5, bytes6 _b6, string memory _str, bytes7 _b7, bytes22 _b22, bytes32 _b32)  {
         _b = 0x12;
         _b2 = 0x1223;
         _b5 = hex"043245";
diff --git a/apps/remix-ide/ci/makeMockCompiler.js b/apps/remix-ide/ci/makeMockCompiler.js
index 45387a80d64..3cd5c9ab1ac 100644
--- a/apps/remix-ide/ci/makeMockCompiler.js
+++ b/apps/remix-ide/ci/makeMockCompiler.js
@@ -3,7 +3,7 @@
 var fs = require('fs')
 var compiler = require('solc')
 var compilerInput = require('@remix-project/remix-solidity').CompilerInput
-var defaultVersion = 'v0.7.4+commit.3f05b770'
+var defaultVersion = 'soljson-v0.8.1+commit.df193b15.js'
 const path = require('path')
 
 compiler.loadRemoteVersion(defaultVersion, (error, solcSnapshot) => {
diff --git a/apps/remix-ide/src/app/editor/examples.js b/apps/remix-ide/src/app/editor/examples.js
index dc29a51d74e..5b63d1a4965 100644
--- a/apps/remix-ide/src/app/editor/examples.js
+++ b/apps/remix-ide/src/app/editor/examples.js
@@ -2,7 +2,7 @@
 
 const storage = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 
 /**
  * @title Storage
@@ -31,7 +31,7 @@ contract Storage {
 
 const owner = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 
 /**
  * @title Owner
@@ -83,7 +83,7 @@ contract Owner {
 
 const ballot = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 
 /** 
  * @title Ballot
@@ -223,7 +223,7 @@ contract Ballot {
 
 const ballotTest = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 import "remix_tests.sol"; // this import is automatically injected by Remix.
 import "../contracts/3_Ballot.sol";
 
diff --git a/apps/remix-ide/src/app/tabs/compileTab/compilerContainer.js b/apps/remix-ide/src/app/tabs/compileTab/compilerContainer.js
index 9eb51e3e861..28a864a7c0e 100644
--- a/apps/remix-ide/src/app/tabs/compileTab/compilerContainer.js
+++ b/apps/remix-ide/src/app/tabs/compileTab/compilerContainer.js
@@ -23,7 +23,7 @@ class CompilerContainer {
       timeout: 300,
       allversions: null,
       selectedVersion: null,
-      defaultVersion: 'soljson-v0.7.4+commit.3f05b770.js' // this default version is defined: in makeMockCompiler (for browser test)
+      defaultVersion: 'soljson-v0.8.1+commit.df193b15.js' // this default version is defined: in makeMockCompiler (for browser test)
     }
   }
 
diff --git a/apps/remix-ide/src/app/tabs/testTab/testTab.js b/apps/remix-ide/src/app/tabs/testTab/testTab.js
index 80dafb08f65..7d81108c4a7 100644
--- a/apps/remix-ide/src/app/tabs/testTab/testTab.js
+++ b/apps/remix-ide/src/app/tabs/testTab/testTab.js
@@ -64,7 +64,7 @@ class TestTabLogic {
     const comment = hasCurrent ? `import "${relative}/${remixPath.basename(fileToImport)}";` : '// Import here the file to test.'
     return `// SPDX-License-Identifier: GPL-3.0
     
-pragma solidity >=0.4.22 <0.8.0;
+pragma solidity >=0.4.22 <0.9.0;
 import "remix_tests.sol"; // this import is automatically injected by Remix.
 import "remix_accounts.sol";
 ${comment}
diff --git a/package.json b/package.json
index 24717dc5657..a02ce0b6e6b 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "bumpVersion:libs": "gulp & gulp syncLibVersions;",
     "browsertest": "sleep 5 && npm run nightwatch_local",
     "csslint": "csslint --ignore=order-alphabetical --errors='errors,duplicate-properties,empty-rules' --exclude-list='apps/remix-ide/src/assets/css/font-awesome.min.css' apps/remix-ide/src/assets/css/",
-    "downloadsolc_assets": "wget --no-check-certificate https://solc-bin.ethereum.org/bin/soljson-v0.7.4+commit.3f05b770.js -O ./apps/remix-ide/src/assets/js/soljson.js",
+    "downloadsolc_assets": "wget --no-check-certificate https://solc-bin.ethereum.org/bin/soljson-v0.8.1+commit.df193b15.js -O ./apps/remix-ide/src/assets/js/soljson.js",
     "make-mock-compiler": "node apps/remix-ide/ci/makeMockCompiler.js",
     "minify": "uglifyjs --in-source-map inline --source-map-inline -c warnings=false",
     "nightwatch_parallel": "npm run build:e2e & nightwatch --config dist/apps/remix-ide-e2e/nightwatch.js --env=chrome,firefox",