diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index 5d8374c97..67af85905 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [16.x, 18.x, 20.x]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/common/scripts/install-run-rush-pnpm.js b/common/scripts/install-run-rush-pnpm.js
index 5c149955d..72a7bfdf0 100644
--- a/common/scripts/install-run-rush-pnpm.js
+++ b/common/scripts/install-run-rush-pnpm.js
@@ -19,7 +19,7 @@ var __webpack_exports__ = {};
   \*****************************************************/
 
 // Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
-// See the @microsoft/rush package's LICENSE file for license information.
+// See LICENSE in the project root for license information.
 require('./install-run-rush');
 //# sourceMappingURL=install-run-rush-pnpm.js.map
 module.exports = __webpack_exports__;
diff --git a/common/scripts/install-run-rush.js b/common/scripts/install-run-rush.js
index cada1eded..fe5101a2a 100644
--- a/common/scripts/install-run-rush.js
+++ b/common/scripts/install-run-rush.js
@@ -113,7 +113,8 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony import */ var fs__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! fs */ 657147);
 /* harmony import */ var fs__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(fs__WEBPACK_IMPORTED_MODULE_1__);
 // Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
-// See the @microsoft/rush package's LICENSE file for license information.
+// See LICENSE in the project root for license information.
+/* eslint-disable no-console */
 
 
 const { installAndRun, findRushJsonFolder, RUSH_JSON_FILENAME, runWithErrorAndStatusCode } = require('./install-run');
diff --git a/common/scripts/install-run-rushx.js b/common/scripts/install-run-rushx.js
index b05df262b..0a0235f29 100644
--- a/common/scripts/install-run-rushx.js
+++ b/common/scripts/install-run-rushx.js
@@ -19,7 +19,7 @@ var __webpack_exports__ = {};
   \*************************************************/
 
 // Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
-// See the @microsoft/rush package's LICENSE file for license information.
+// See LICENSE in the project root for license information.
 require('./install-run-rush');
 //# sourceMappingURL=install-run-rushx.js.map
 module.exports = __webpack_exports__;
diff --git a/common/scripts/install-run.js b/common/scripts/install-run.js
index c04c587be..bf89cd231 100644
--- a/common/scripts/install-run.js
+++ b/common/scripts/install-run.js
@@ -21,6 +21,7 @@
 
 __webpack_require__.r(__webpack_exports__);
 /* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "isVariableSetInNpmrcFile": () => (/* binding */ isVariableSetInNpmrcFile),
 /* harmony export */   "syncNpmrc": () => (/* binding */ syncNpmrc)
 /* harmony export */ });
 /* harmony import */ var fs__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! fs */ 657147);
@@ -33,22 +34,19 @@ __webpack_require__.r(__webpack_exports__);
 
 
 /**
- * As a workaround, copyAndTrimNpmrcFile() copies the .npmrc file to the target folder, and also trims
+ * This function reads the content for given .npmrc file path, and also trims
  * unusable lines from the .npmrc file.
  *
- * Why are we trimming the .npmrc lines?  NPM allows environment variables to be specified in
- * the .npmrc file to provide different authentication tokens for different registry.
- * However, if the environment variable is undefined, it expands to an empty string, which
- * produces a valid-looking mapping with an invalid URL that causes an error.  Instead,
- * we'd prefer to skip that line and continue looking in other places such as the user's
- * home directory.
- *
  * @returns
  * The text of the the .npmrc.
  */
-function _copyAndTrimNpmrcFile(logger, sourceNpmrcPath, targetNpmrcPath) {
-    logger.info(`Transforming ${sourceNpmrcPath}`); // Verbose
-    logger.info(`  --> "${targetNpmrcPath}"`);
+// create a global _combinedNpmrc for cache purpose
+const _combinedNpmrcMap = new Map();
+function _trimNpmrcFile(sourceNpmrcPath) {
+    const combinedNpmrcFromCache = _combinedNpmrcMap.get(sourceNpmrcPath);
+    if (combinedNpmrcFromCache !== undefined) {
+        return combinedNpmrcFromCache;
+    }
     let npmrcFileLines = fs__WEBPACK_IMPORTED_MODULE_0__.readFileSync(sourceNpmrcPath).toString().split('\n');
     npmrcFileLines = npmrcFileLines.map((line) => (line || '').trim());
     const resultLines = [];
@@ -57,8 +55,13 @@ function _copyAndTrimNpmrcFile(logger, sourceNpmrcPath, targetNpmrcPath) {
     // Comment lines start with "#" or ";"
     const commentRegExp = /^\s*[#;]/;
     // Trim out lines that reference environment variables that aren't defined
-    for (const line of npmrcFileLines) {
+    for (let line of npmrcFileLines) {
         let lineShouldBeTrimmed = false;
+        //remove spaces before or after key and value
+        line = line
+            .split('=')
+            .map((lineToTrim) => lineToTrim.trim())
+            .join('=');
         // Ignore comment lines
         if (!commentRegExp.test(line)) {
             const environmentVariables = line.match(expansionRegExp);
@@ -85,6 +88,28 @@ function _copyAndTrimNpmrcFile(logger, sourceNpmrcPath, targetNpmrcPath) {
         }
     }
     const combinedNpmrc = resultLines.join('\n');
+    //save the cache
+    _combinedNpmrcMap.set(sourceNpmrcPath, combinedNpmrc);
+    return combinedNpmrc;
+}
+/**
+ * As a workaround, copyAndTrimNpmrcFile() copies the .npmrc file to the target folder, and also trims
+ * unusable lines from the .npmrc file.
+ *
+ * Why are we trimming the .npmrc lines?  NPM allows environment variables to be specified in
+ * the .npmrc file to provide different authentication tokens for different registry.
+ * However, if the environment variable is undefined, it expands to an empty string, which
+ * produces a valid-looking mapping with an invalid URL that causes an error.  Instead,
+ * we'd prefer to skip that line and continue looking in other places such as the user's
+ * home directory.
+ *
+ * @returns
+ * The text of the the .npmrc with lines containing undefined variables commented out.
+ */
+function _copyAndTrimNpmrcFile(logger, sourceNpmrcPath, targetNpmrcPath) {
+    logger.info(`Transforming ${sourceNpmrcPath}`); // Verbose
+    logger.info(`  --> "${targetNpmrcPath}"`);
+    const combinedNpmrc = _trimNpmrcFile(sourceNpmrcPath);
     fs__WEBPACK_IMPORTED_MODULE_0__.writeFileSync(targetNpmrcPath, combinedNpmrc);
     return combinedNpmrc;
 }
@@ -98,7 +123,9 @@ function _copyAndTrimNpmrcFile(logger, sourceNpmrcPath, targetNpmrcPath) {
  * The text of the the synced .npmrc, if one exists. If one does not exist, then undefined is returned.
  */
 function syncNpmrc(sourceNpmrcFolder, targetNpmrcFolder, useNpmrcPublish, logger = {
+    // eslint-disable-next-line no-console
     info: console.log,
+    // eslint-disable-next-line no-console
     error: console.error
 }) {
     const sourceNpmrcPath = path__WEBPACK_IMPORTED_MODULE_1__.join(sourceNpmrcFolder, !useNpmrcPublish ? '.npmrc' : '.npmrc-publish');
@@ -117,6 +144,16 @@ function syncNpmrc(sourceNpmrcFolder, targetNpmrcFolder, useNpmrcPublish, logger
         throw new Error(`Error syncing .npmrc file: ${e}`);
     }
 }
+function isVariableSetInNpmrcFile(sourceNpmrcFolder, variableKey) {
+    const sourceNpmrcPath = `${sourceNpmrcFolder}/.npmrc`;
+    //if .npmrc file does not exist, return false directly
+    if (!fs__WEBPACK_IMPORTED_MODULE_0__.existsSync(sourceNpmrcPath)) {
+        return false;
+    }
+    const trimmedNpmrcFile = _trimNpmrcFile(sourceNpmrcPath);
+    const variableKeyRegExp = new RegExp(`^${variableKey}=`, 'm');
+    return trimmedNpmrcFile.match(variableKeyRegExp) !== null;
+}
 //# sourceMappingURL=npmrcUtilities.js.map
 
 /***/ }),
@@ -253,7 +290,8 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony import */ var path__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(path__WEBPACK_IMPORTED_MODULE_3__);
 /* harmony import */ var _utilities_npmrcUtilities__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utilities/npmrcUtilities */ 679877);
 // Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
-// See the @microsoft/rush package's LICENSE file for license information.
+// See LICENSE in the project root for license information.
+/* eslint-disable no-console */
 
 
 
@@ -426,9 +464,9 @@ function _resolvePackageVersion(logger, rushCommonFolder, { name, version }) {
                 : [parsedVersionOutput];
             let latestVersion = versions[0];
             for (let i = 1; i < versions.length; i++) {
-                const version = versions[i];
-                if (_compareVersionStrings(version, latestVersion) > 0) {
-                    latestVersion = version;
+                const latestVersionCandidate = versions[i];
+                if (_compareVersionStrings(latestVersionCandidate, latestVersion) > 0) {
+                    latestVersion = latestVersionCandidate;
                 }
             }
             if (!latestVersion) {
diff --git a/rush.json b/rush.json
index 699c6974b..9b8821fc2 100644
--- a/rush.json
+++ b/rush.json
@@ -16,7 +16,7 @@
    * path segment in the "$schema" field for all your Rush config files.  This will ensure
    * correct error-underlining and tab-completion for editors such as VS Code.
    */
-  "rushVersion": "5.101.1",
+  "rushVersion": "5.112.2",
 
   /**
    * The next field selects which package manager should be installed and determines its version.
@@ -42,7 +42,7 @@
    * LTS schedule: https://nodejs.org/en/about/releases/
    * LTS versions: https://nodejs.org/en/download/releases/
    */
-  "nodeSupportedVersionRange": ">=14.15.0 <15.0.0 || >=16.13.0 <17.0.0 || >=18.15.0 <19.0.0",
+  "nodeSupportedVersionRange": ">=16.13.0 <17.0.0 || >=18.15.0 <19.0.0 || >=20.9.0 <21.0.0",
 
   /**
    * Odd-numbered major versions of Node.js are experimental.  Even-numbered releases