diff --git a/.gitignore b/.gitignore
index f32789f11..c08afb1b4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,6 @@ dist/
 temp/
 build/
 es/tsdoc-metadata.json
+
+# For sub-package with test utilities
+!sdk-test-utilities/index.js
diff --git a/.secrets.baseline b/.secrets.baseline
index 80f3b9f03..d0a1b49b7 100644
--- a/.secrets.baseline
+++ b/.secrets.baseline
@@ -3,7 +3,7 @@
     "files": "package-lock.json|^.secrets.baseline$",
     "lines": null
   },
-  "generated_at": "2024-04-16T16:00:48Z",
+  "generated_at": "2024-06-06T19:22:54Z",
   "plugins_used": [
     {
       "name": "AWSKeyDetector"
@@ -96,7 +96,7 @@
         "hashed_secret": "bc2f74c22f98f7b6ffbc2f67453dbfa99bce9a32",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 146,
+        "line_number": 174,
         "type": "Secret Keyword",
         "verified_result": null
       }
@@ -334,7 +334,7 @@
         "hashed_secret": "45c43fe97e3a06ab078b0eeff6fbe622cc417a25",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 284,
+        "line_number": 266,
         "type": "Secret Keyword",
         "verified_result": null
       }
@@ -582,7 +582,7 @@
       }
     ]
   },
-  "version": "0.13.1+ibm.62.dss",
+  "version": "0.13.1+ibm.56.dss",
   "word_list": {
     "file": null,
     "hash": null
diff --git a/.travis.yml b/.travis.yml
index 22ebf396f..5cfda50bd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,10 @@ before_install:
   - npm --version
 
 script:
+# Prepare sub-package for tests
+- cd sdk-test-utilities && npm ci && cd ..
+
+# Run standard build steps.
 - npm run build
 - npm run lint
 - npm run test-travis
diff --git a/MIGRATION-V5.md b/MIGRATION-V5.md
new file mode 100644
index 000000000..632b18024
--- /dev/null
+++ b/MIGRATION-V5.md
@@ -0,0 +1,15 @@
+# Migration Guide for v5
+
+## Breaking Changes
+
+### Node Version
+Node version 16 is no longer supported - 18 is the minimum version supported.
+
+### SDK Unit Test Helpers
+The formerly available helper functions exposed in this package have been removed. These
+functions were intended for use in the unit tests of a generated SDK project.
+
+The functions are now present in a new package called `@ibm-cloud/sdk-test-utilities`.
+To continue using the helper functions in SDK test code, install this new package as a
+development dependency and import the functions from there. The interface and functions
+remain completely identical to the functions formerly exposed in this package.
diff --git a/etc/ibm-cloud-sdk-core.api.md b/etc/ibm-cloud-sdk-core.api.md
index 2f7eebca3..5def7987a 100644
--- a/etc/ibm-cloud-sdk-core.api.md
+++ b/etc/ibm-cloud-sdk-core.api.md
@@ -105,18 +105,6 @@ export function buildRequestFileObject(fileParam: FileWithMetadata): Promise<Fil
 // @public
 export function checkCredentials(obj: any, credsToCheck: string[]): Error | null;
 
-// @public
-function checkForSuccessfulExecution(createRequestMock: any): void;
-
-// @public
-function checkMediaHeaders(createRequestMock: any, accept: string, contentType: string): void;
-
-// @public
-function checkUrlAndMethod(options: any, url: string, method: any): void;
-
-// @public
-function checkUserHeader(createRequestMock: any, userHeaderName: string, userHeaderValue: string): void;
-
 // @public
 export class CloudPakForDataAuthenticator extends TokenRequestBasedAuthenticator {
     // Warning: (ae-forgotten-export) The symbol "Options_4" needs to be exported by the entry point index.d.ts
@@ -176,9 +164,6 @@ export class Cp4dTokenManager extends JwtTokenManager {
     protected requiredOptions: string[];
 }
 
-// @public
-function expectToBePromise(sdkPromise: any): void;
-
 // @public (undocumented)
 export function fileExistsAtPath(filepath: string): boolean;
 
@@ -236,9 +221,6 @@ export function getMissingParams(params: {
 // @public
 export function getNewLogger(moduleName: string): SDKLogger;
 
-// @public
-function getOptions(createRequestMock: any): any;
-
 // @public
 export function getQueryParam(urlStr: string, param: string): string;
 
@@ -458,18 +440,6 @@ export class TokenRequestBasedAuthenticator extends Authenticator {
 // @public
 export function toLowerKeys(obj: Object): Object;
 
-declare namespace unitTestUtils {
-    export {
-        checkUrlAndMethod,
-        checkMediaHeaders,
-        checkUserHeader,
-        checkForSuccessfulExecution,
-        getOptions,
-        expectToBePromise
-    }
-}
-export { unitTestUtils }
-
 // @public
 export interface UserOptions {
     [propName: string]: any;
diff --git a/index.ts b/index.ts
index 7a88683a6..9e5b3950a 100644
--- a/index.ts
+++ b/index.ts
@@ -1,5 +1,5 @@
 /**
- * (C) Copyright IBM Corp. 2019, 2021.
+ * (C) Copyright IBM Corp. 2019, 2024.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,13 +18,10 @@
  * @module ibm-cloud-sdk-core
  */
 
-import * as unitTestUtils from './lib/sdk-test-helpers';
-
 export { BaseService, UserOptions } from './lib/base-service';
 export * from './auth';
 export * from './lib/helper';
 export { default as qs } from './lib/querystring';
 export { default as contentType } from './lib/content-type';
 export * from './lib/stream-to-promise';
-export { unitTestUtils };
 export { getNewLogger, SDKLogger } from './lib/get-new-logger';
diff --git a/lib/sdk-test-helpers.browser.ts b/lib/sdk-test-helpers.browser.ts
deleted file mode 100644
index eba0c7d83..000000000
--- a/lib/sdk-test-helpers.browser.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-/* eslint-disable @typescript-eslint/no-unused-vars */
-
-/**
- * Copyright 2021 IBM Corp. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// Dummy for browser
-export function checkUrlAndMethod(options, url: string, method: any) {}
-
-export function checkMediaHeaders(createRequestMock, accept: string, contentType: string) {}
-
-export function checkUserHeader(
-  createRequestMock,
-  userHeaderName: string,
-  userHeaderValue: string
-) {}
-
-export function checkForSuccessfulExecution(createRequestMock) {}
-
-export function getOptions(createRequestMock) {}
-
-export function expectToBePromise(sdkPromise) {}
diff --git a/package-lock.json b/package-lock.json
index 47804a420..b6a844948 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,6 @@
         "camelcase": "^6.3.0",
         "debug": "^4.3.4",
         "dotenv": "^16.4.5",
-        "expect": "^27.5.1",
         "extend": "3.0.2",
         "file-type": "16.5.4",
         "form-data": "4.0.0",
@@ -58,7 +57,7 @@
         "typescript": "~4.9.4"
       },
       "engines": {
-        "node": ">=14"
+        "node": ">=18"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -286,6 +285,7 @@
       "version": "7.22.20",
       "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.22.20.tgz",
       "integrity": "sha512-Y4OZ+ytlatR8AI+8KZfKuL5urKp7qey08ha31L8b3BwewJAoJamTzyvxPR/5D+KkdJCGPq/+8TukHBlY10FX9A==",
+      "dev": true,
       "engines": {
         "node": ">=6.9.0"
       }
@@ -317,6 +317,7 @@
       "version": "7.24.2",
       "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.24.2.tgz",
       "integrity": "sha512-Yac1ao4flkTxTteCDZLEvdxg2fZfz1v8M4QpaGypq/WPDqg3ijHYbDfs+LG5hvzSoqaSZ9/Z9lKSP3CjZjv+pA==",
+      "dev": true,
       "dependencies": {
         "@babel/helper-validator-identifier": "^7.22.20",
         "chalk": "^2.4.2",
@@ -331,6 +332,7 @@
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
       "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
       "dependencies": {
         "color-convert": "^1.9.0"
       },
@@ -342,6 +344,7 @@
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
       "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+      "dev": true,
       "dependencies": {
         "ansi-styles": "^3.2.1",
         "escape-string-regexp": "^1.0.5",
@@ -355,6 +358,7 @@
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
       "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
+      "dev": true,
       "dependencies": {
         "color-name": "1.1.3"
       }
@@ -362,12 +366,14 @@
     "node_modules/@babel/highlight/node_modules/color-name": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
-      "integrity": "sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw=="
+      "integrity": "sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw==",
+      "dev": true
     },
     "node_modules/@babel/highlight/node_modules/escape-string-regexp": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
       "integrity": "sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg==",
+      "dev": true,
       "engines": {
         "node": ">=0.8.0"
       }
@@ -376,6 +382,7 @@
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
       "integrity": "sha512-sKJf1+ceQBr4SMkvQnBDNDtf4TXpVhVGateu0t918bl30FnbE2m4vNLX+VWe/dpjlb+HugGYzW7uQXH98HPEYw==",
+      "dev": true,
       "engines": {
         "node": ">=4"
       }
@@ -384,6 +391,7 @@
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
       "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+      "dev": true,
       "dependencies": {
         "has-flag": "^3.0.0"
       },
@@ -1810,21 +1818,6 @@
         "@types/yargs-parser": "*"
       }
     },
-    "node_modules/@jest/types": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/@jest/types/-/types-27.5.1.tgz",
-      "integrity": "sha512-Cx46iJ9QpwQTjIdq5VJu2QTMMs3QlEjI0x1QbBP5W1+nMzyc2XmimiRR/CbX9TO0cPTeUlxWMOu8mslYsJ8DEw==",
-      "dependencies": {
-        "@types/istanbul-lib-coverage": "^2.0.0",
-        "@types/istanbul-reports": "^3.0.0",
-        "@types/node": "*",
-        "@types/yargs": "^16.0.0",
-        "chalk": "^4.0.0"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
     "node_modules/@jridgewell/gen-mapping": {
       "version": "0.3.5",
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.5.tgz",
@@ -3303,12 +3296,14 @@
     "node_modules/@types/istanbul-lib-coverage": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.6.tgz",
-      "integrity": "sha512-2QF/t/auWm0lsy8XtKVPG19v3sSOQlJe/YHZgfjb/KBBHOGSV+J2q/S671rcq9uTBrLAXmZpqJiaQbMT+zNU1w=="
+      "integrity": "sha512-2QF/t/auWm0lsy8XtKVPG19v3sSOQlJe/YHZgfjb/KBBHOGSV+J2q/S671rcq9uTBrLAXmZpqJiaQbMT+zNU1w==",
+      "dev": true
     },
     "node_modules/@types/istanbul-lib-report": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/@types/istanbul-lib-report/-/istanbul-lib-report-3.0.3.tgz",
       "integrity": "sha512-NQn7AHQnk/RSLOxrBbGyJM/aVQ+pjj5HCgasFxc0K/KhoATfQ/47AyUl15I2yBUpihjmas+a+VJBOqecrFH+uA==",
+      "dev": true,
       "dependencies": {
         "@types/istanbul-lib-coverage": "*"
       }
@@ -3317,6 +3312,7 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/@types/istanbul-reports/-/istanbul-reports-3.0.4.tgz",
       "integrity": "sha512-pk2B1NWalF9toCRu6gjBzR69syFjP4Od8WRAX+0mmf9lAjCRicLOWc+ZrxZHx/0XRjotgkF9t6iaMJ+aXcOdZQ==",
+      "dev": true,
       "dependencies": {
         "@types/istanbul-lib-report": "*"
       }
@@ -3376,25 +3372,19 @@
     "node_modules/@types/stack-utils": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-2.0.3.tgz",
-      "integrity": "sha512-9aEbYZ3TbYMznPdcdr3SmIrLXwC/AKZXQeCf9Pgao5CKb8CyHuEX5jzWPTkvregvhRJHcpRO6BFoGW9ycaOkYw=="
+      "integrity": "sha512-9aEbYZ3TbYMznPdcdr3SmIrLXwC/AKZXQeCf9Pgao5CKb8CyHuEX5jzWPTkvregvhRJHcpRO6BFoGW9ycaOkYw==",
+      "dev": true
     },
     "node_modules/@types/tough-cookie": {
       "version": "4.0.5",
       "resolved": "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-4.0.5.tgz",
       "integrity": "sha512-/Ad8+nIOV7Rl++6f1BdKxFSMgmoqEoYbHRpPcx3JEfv8VRsQe9Z4mCXeJBzxs7mbHY/XOZZuXlRNfhpVPbs6ZA=="
     },
-    "node_modules/@types/yargs": {
-      "version": "16.0.9",
-      "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-16.0.9.tgz",
-      "integrity": "sha512-tHhzvkFXZQeTECenFoRljLBYPZJ7jAVxqqtEI0qTLOmuultnFp4I9yKE17vTuhf7BkhCu7I4XuemPgikDVuYqA==",
-      "dependencies": {
-        "@types/yargs-parser": "*"
-      }
-    },
     "node_modules/@types/yargs-parser": {
       "version": "21.0.3",
       "resolved": "https://registry.npmjs.org/@types/yargs-parser/-/yargs-parser-21.0.3.tgz",
-      "integrity": "sha512-I4q9QU9MQv4oEOz4tAHJtNz1cwuLxn2F3xcc2iV5WdqLPpUnj30aUuxt1mAxYTG+oe8CZMV/+6rU4S4gRDzqtQ=="
+      "integrity": "sha512-I4q9QU9MQv4oEOz4tAHJtNz1cwuLxn2F3xcc2iV5WdqLPpUnj30aUuxt1mAxYTG+oe8CZMV/+6rU4S4gRDzqtQ==",
+      "dev": true
     },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "5.62.0",
@@ -3811,6 +3801,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
       "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
+      "dev": true,
       "engines": {
         "node": ">=8"
       }
@@ -3819,6 +3810,7 @@
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
       "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+      "dev": true,
       "dependencies": {
         "color-convert": "^2.0.1"
       },
@@ -4273,6 +4265,7 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
       "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
+      "dev": true,
       "dependencies": {
         "fill-range": "^7.1.1"
       },
@@ -4421,6 +4414,7 @@
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
       "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
+      "dev": true,
       "dependencies": {
         "ansi-styles": "^4.1.0",
         "supports-color": "^7.1.0"
@@ -4436,6 +4430,7 @@
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
       "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "dev": true,
       "dependencies": {
         "has-flag": "^4.0.0"
       },
@@ -4549,6 +4544,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
       "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "dev": true,
       "dependencies": {
         "color-name": "~1.1.4"
       },
@@ -4559,7 +4555,8 @@
     "node_modules/color-name": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+      "dev": true
     },
     "node_modules/combined-stream": {
       "version": "1.0.8",
@@ -5049,14 +5046,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/diff-sequences": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/diff-sequences/-/diff-sequences-27.5.1.tgz",
-      "integrity": "sha512-k1gCAXAsNgLwEL+Y8Wvl+M6oEFj5bgazfZULpS5CneoPPXRaCCW7dm+q21Ky2VEE5X+VeRDBVg1Pcvvsr4TtNQ==",
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
     "node_modules/dir-glob": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/dir-glob/-/dir-glob-3.0.1.tgz",
@@ -6357,20 +6346,6 @@
         "node": ">= 0.8.0"
       }
     },
-    "node_modules/expect": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/expect/-/expect-27.5.1.tgz",
-      "integrity": "sha512-E1q5hSUG2AmYQwQJ041nvgpkODHQvB+RKlB4IYdru6uJsyFTRyZAP463M+1lINorwbqAmUggi6+WwkD8lCS/Dw==",
-      "dependencies": {
-        "@jest/types": "^27.5.1",
-        "jest-get-type": "^27.5.1",
-        "jest-matcher-utils": "^27.5.1",
-        "jest-message-util": "^27.5.1"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
     "node_modules/extend": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
@@ -6481,6 +6456,7 @@
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
       "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
+      "dev": true,
       "dependencies": {
         "to-regex-range": "^5.0.1"
       },
@@ -7012,7 +6988,8 @@
     "node_modules/graceful-fs": {
       "version": "4.2.11",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.11.tgz",
-      "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ=="
+      "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==",
+      "dev": true
     },
     "node_modules/graphemer": {
       "version": "1.4.0",
@@ -7063,6 +7040,7 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
       "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+      "dev": true,
       "engines": {
         "node": ">=8"
       }
@@ -7636,6 +7614,7 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
       "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
+      "dev": true,
       "engines": {
         "node": ">=0.12.0"
       }
@@ -8332,49 +8311,6 @@
         "node": "^14.15.0 || ^16.10.0 || >=18.0.0"
       }
     },
-    "node_modules/jest-diff": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/jest-diff/-/jest-diff-27.5.1.tgz",
-      "integrity": "sha512-m0NvkX55LDt9T4mctTEgnZk3fmEg3NRYutvMPWM/0iPnkFj2wIeF45O1718cMSOFO1vINkqmxqD8vE37uTEbqw==",
-      "dependencies": {
-        "chalk": "^4.0.0",
-        "diff-sequences": "^27.5.1",
-        "jest-get-type": "^27.5.1",
-        "pretty-format": "^27.5.1"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
-    "node_modules/jest-diff/node_modules/ansi-styles": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-5.2.0.tgz",
-      "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
-      }
-    },
-    "node_modules/jest-diff/node_modules/pretty-format": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-27.5.1.tgz",
-      "integrity": "sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==",
-      "dependencies": {
-        "ansi-regex": "^5.0.1",
-        "ansi-styles": "^5.0.0",
-        "react-is": "^17.0.1"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
-    "node_modules/jest-diff/node_modules/react-is": {
-      "version": "17.0.2",
-      "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
-      "integrity": "sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w=="
-    },
     "node_modules/jest-docblock": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/jest-docblock/-/jest-docblock-29.7.0.tgz",
@@ -8481,14 +8417,6 @@
         "@types/yargs-parser": "*"
       }
     },
-    "node_modules/jest-get-type": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/jest-get-type/-/jest-get-type-27.5.1.tgz",
-      "integrity": "sha512-2KY95ksYSaK7DMBWQn6dQz3kqAf3BB64y2udeG+hv4KfSOb9qwcYQstTJc1KCbsix+wLZWZYN8t7nwX3GOBLRw==",
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
     "node_modules/jest-haste-map": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/jest-haste-map/-/jest-haste-map-29.7.0.tgz",
@@ -8562,109 +8490,6 @@
         "node": "^14.15.0 || ^16.10.0 || >=18.0.0"
       }
     },
-    "node_modules/jest-matcher-utils": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/jest-matcher-utils/-/jest-matcher-utils-27.5.1.tgz",
-      "integrity": "sha512-z2uTx/T6LBaCoNWNFWwChLBKYxTMcGBRjAt+2SbP929/Fflb9aa5LGma654Rz8z9HLxsrUaYzxE9T/EFIL/PAw==",
-      "dependencies": {
-        "chalk": "^4.0.0",
-        "jest-diff": "^27.5.1",
-        "jest-get-type": "^27.5.1",
-        "pretty-format": "^27.5.1"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
-    "node_modules/jest-matcher-utils/node_modules/ansi-styles": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-5.2.0.tgz",
-      "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
-      }
-    },
-    "node_modules/jest-matcher-utils/node_modules/pretty-format": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-27.5.1.tgz",
-      "integrity": "sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==",
-      "dependencies": {
-        "ansi-regex": "^5.0.1",
-        "ansi-styles": "^5.0.0",
-        "react-is": "^17.0.1"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
-    "node_modules/jest-matcher-utils/node_modules/react-is": {
-      "version": "17.0.2",
-      "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
-      "integrity": "sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w=="
-    },
-    "node_modules/jest-message-util": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/jest-message-util/-/jest-message-util-27.5.1.tgz",
-      "integrity": "sha512-rMyFe1+jnyAAf+NHwTclDz0eAaLkVDdKVHHBFWsBWHnnh5YeJMNWWsv7AbFYXfK3oTqvL7VTWkhNLu1jX24D+g==",
-      "dependencies": {
-        "@babel/code-frame": "^7.12.13",
-        "@jest/types": "^27.5.1",
-        "@types/stack-utils": "^2.0.0",
-        "chalk": "^4.0.0",
-        "graceful-fs": "^4.2.9",
-        "micromatch": "^4.0.4",
-        "pretty-format": "^27.5.1",
-        "slash": "^3.0.0",
-        "stack-utils": "^2.0.3"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
-    "node_modules/jest-message-util/node_modules/@babel/code-frame": {
-      "version": "7.24.2",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.24.2.tgz",
-      "integrity": "sha512-y5+tLQyV8pg3fsiln67BVLD1P13Eg4lh5RW9mF0zUuvLrv9uIQ4MCL+CRT+FTsBlBjcIan6PGsLcBN0m3ClUyQ==",
-      "dependencies": {
-        "@babel/highlight": "^7.24.2",
-        "picocolors": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=6.9.0"
-      }
-    },
-    "node_modules/jest-message-util/node_modules/ansi-styles": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-5.2.0.tgz",
-      "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
-      }
-    },
-    "node_modules/jest-message-util/node_modules/pretty-format": {
-      "version": "27.5.1",
-      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-27.5.1.tgz",
-      "integrity": "sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==",
-      "dependencies": {
-        "ansi-regex": "^5.0.1",
-        "ansi-styles": "^5.0.0",
-        "react-is": "^17.0.1"
-      },
-      "engines": {
-        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
-      }
-    },
-    "node_modules/jest-message-util/node_modules/react-is": {
-      "version": "17.0.2",
-      "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
-      "integrity": "sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w=="
-    },
     "node_modules/jest-mock": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/jest-mock/-/jest-mock-29.7.0.tgz",
@@ -9291,7 +9116,8 @@
     "node_modules/js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
-      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ=="
+      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+      "dev": true
     },
     "node_modules/js-yaml": {
       "version": "3.13.1",
@@ -9866,6 +9692,7 @@
       "version": "4.0.6",
       "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.6.tgz",
       "integrity": "sha512-Y4Ypn3oujJYxJcMacVgcs92wofTHxp9FzfDpQON4msDefoC0lb3ETvQLOdLcbhSwU1bz8HrL/1sygfBIHudrkQ==",
+      "dev": true,
       "dependencies": {
         "braces": "^3.0.3",
         "picomatch": "^4.0.2"
@@ -9878,6 +9705,7 @@
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.2.tgz",
       "integrity": "sha512-M7BAV6Rlcy5u+m6oPhAPFgJTzAioX/6B0DxyvDlo9l8+T3nLKbrczg2WLUyzd45L8RqfUMyGPzekbMvX2Ldkwg==",
+      "dev": true,
       "engines": {
         "node": ">=12"
       },
@@ -13428,7 +13256,8 @@
     "node_modules/picocolors": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
-      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ=="
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
     },
     "node_modules/picomatch": {
       "version": "2.3.1",
@@ -15069,6 +14898,7 @@
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-3.0.0.tgz",
       "integrity": "sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==",
+      "dev": true,
       "engines": {
         "node": ">=8"
       }
@@ -15166,6 +14996,7 @@
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/stack-utils/-/stack-utils-2.0.6.tgz",
       "integrity": "sha512-XlkWvfIm6RmsWtNJx+uqtKLS8eqFbxUg0ZzLXqY0caEy9l7hruX8IpiDnjsLavoBgqCCR71TqWO8MaXYheJ3RQ==",
+      "dev": true,
       "dependencies": {
         "escape-string-regexp": "^2.0.0"
       },
@@ -15177,6 +15008,7 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-2.0.0.tgz",
       "integrity": "sha512-UpzcLCXolUWcNu5HtVMHYdXJjArjsF9C0aNnquZYY4uW/Vu0miy5YoWvbV345HauVvcAUnpRuhMMcqTcGOY2+w==",
+      "dev": true,
       "engines": {
         "node": ">=8"
       }
@@ -15697,6 +15529,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "dev": true,
       "dependencies": {
         "is-number": "^7.0.0"
       },
diff --git a/package.json b/package.json
index 77f9012da..f27a7266b 100644
--- a/package.json
+++ b/package.json
@@ -72,7 +72,6 @@
     "camelcase": "^6.3.0",
     "debug": "^4.3.4",
     "dotenv": "^16.4.5",
-    "expect": "^27.5.1",
     "extend": "3.0.2",
     "file-type": "16.5.4",
     "form-data": "4.0.0",
@@ -86,8 +85,7 @@
     "semver": "^7.5.3"
   },
   "browser": {
-    "./auth/utils/read-credentials-file": "./auth/utils/read-credentials-file.browser",
-    "./lib/sdk-test-helpers": "./lib/sdk-test-helpers.browser"
+    "./auth/utils/read-credentials-file": "./auth/utils/read-credentials-file.browser"
   },
   "engines": {
     "node": ">=18"
diff --git a/sdk-test-utilities/.npmignore b/sdk-test-utilities/.npmignore
new file mode 100644
index 000000000..c2658d7d1
--- /dev/null
+++ b/sdk-test-utilities/.npmignore
@@ -0,0 +1 @@
+node_modules/
diff --git a/sdk-test-utilities/README.md b/sdk-test-utilities/README.md
new file mode 100644
index 000000000..db17286fe
--- /dev/null
+++ b/sdk-test-utilities/README.md
@@ -0,0 +1,8 @@
+# SDK Test Utilities
+
+A set of utility methods for unit tests in IBM Cloud SDKs.
+
+This package is published separately from `ibm-cloud-sdk-core`. It includes `expect`
+as a dependency, which is not intended for inclusion in production packages. This
+utility package should only be installed as a _development_ dependency and the logic
+it contains will only ever be needed for tests.
diff --git a/lib/sdk-test-helpers.ts b/sdk-test-utilities/index.js
similarity index 85%
rename from lib/sdk-test-helpers.ts
rename to sdk-test-utilities/index.js
index 2e794f825..1ab412fbd 100644
--- a/lib/sdk-test-helpers.ts
+++ b/sdk-test-utilities/index.js
@@ -1,5 +1,5 @@
 /**
- * (C) Copyright IBM Corp. 2019, 2022.
+ * (C) Copyright IBM Corp. 2019, 2024.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,10 +14,10 @@
  * limitations under the License.
  */
 
-import expect from 'expect';
+const { expect } = require('expect');
 
 /**
- * This module provides a set of helper methods used to reduce code duplication in the generated unit tests
+ * This module provides a set of utility methods used to reduce code duplication in the generated unit tests
  * for the SDKs that depend on this core package. Note that these methods are not used by the tests for this
  * package - they are meant to be exported and made available to dependent libraries.
  */
@@ -30,7 +30,7 @@ import expect from 'expect';
  * @param url - The URL path of the service endpoint, from the paths section of the API definition
  * @param method - The HTTP method for the request, from the API definition
  */
-export function checkUrlAndMethod(options, url: string, method: any) {
+function checkUrlAndMethod(options, url, method) {
   expect(options.url).toEqual(url);
   expect(options.method).toEqual(method);
 }
@@ -44,7 +44,7 @@ export function checkUrlAndMethod(options, url: string, method: any) {
  * @param accept - the expected value for the `Accept` header
  * @param contentType - the expected value for the `Content-Type` header
  */
-export function checkMediaHeaders(createRequestMock, accept: string, contentType: string) {
+function checkMediaHeaders(createRequestMock, accept, contentType) {
   const { headers } = createRequestMock.mock.calls[0][0].defaultOptions;
   expect(headers.Accept).toEqual(accept);
   expect(headers['Content-Type']).toEqual(contentType);
@@ -59,10 +59,10 @@ export function checkMediaHeaders(createRequestMock, accept: string, contentType
  * @param userHeaderName - the name of the header passed by the user, e.g. `Contained-Content-Type`
  * @param userHeaderValue - the expected value for the header passed by the user
  */
-export function checkUserHeader(
+function checkUserHeader(
   createRequestMock,
-  userHeaderName: string,
-  userHeaderValue: string
+  userHeaderName,
+  userHeaderValue
 ) {
   const { headers } = createRequestMock.mock.calls[0][0].defaultOptions;
   expect(headers[userHeaderName]).toEqual(userHeaderValue);
@@ -74,7 +74,7 @@ export function checkUserHeader(
  *
  * @param createRequestMock - the jest mock object for the `createRequest` method in the `RequestWrapper` class
  */
-export function checkForSuccessfulExecution(createRequestMock) {
+function checkForSuccessfulExecution(createRequestMock) {
   const sdkParams = createRequestMock.mock.calls[0][0];
   expect(typeof sdkParams).toEqual('object');
 }
@@ -87,7 +87,7 @@ export function checkForSuccessfulExecution(createRequestMock) {
  * @param createRequestMock - the jest mock object for the `createRequest` method in the `RequestWrapper` class
  * @returns Object
  */
-export function getOptions(createRequestMock) {
+function getOptions(createRequestMock) {
   return createRequestMock.mock.calls[0][0].options;
 }
 
@@ -97,6 +97,15 @@ export function getOptions(createRequestMock) {
  *
  * @param sdkPromise - the Promise returned by an SDK method
  */
-export function expectToBePromise(sdkPromise) {
+function expectToBePromise(sdkPromise) {
   expect(typeof sdkPromise.then).toBe('function');
 }
+
+module.exports = {
+  checkUrlAndMethod,
+  checkMediaHeaders,
+  checkUserHeader,
+  checkForSuccessfulExecution,
+  getOptions,
+  expectToBePromise,
+};
diff --git a/sdk-test-utilities/package-lock.json b/sdk-test-utilities/package-lock.json
new file mode 100644
index 000000000..18a9a1336
--- /dev/null
+++ b/sdk-test-utilities/package-lock.json
@@ -0,0 +1,516 @@
+{
+  "name": "@ibm-cloud/sdk-test-utilities",
+  "version": "0.0.1",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "@ibm-cloud/sdk-test-utilities",
+      "version": "0.0.1",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "expect": "^29.7.0"
+      }
+    },
+    "node_modules/@babel/code-frame": {
+      "version": "7.24.7",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.24.7.tgz",
+      "integrity": "sha512-BcYH1CVJBO9tvyIZ2jVeXgSIMvGZ2FDRvDdOIVQyuklNKSsx+eppDEBq/g47Ayw+RqNFE+URvOShmf+f/qwAlA==",
+      "dependencies": {
+        "@babel/highlight": "^7.24.7",
+        "picocolors": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
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+}
diff --git a/sdk-test-utilities/package.json b/sdk-test-utilities/package.json
new file mode 100644
index 000000000..a231f0280
--- /dev/null
+++ b/sdk-test-utilities/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "@ibm-cloud/sdk-test-utilities",
+  "version": "1.0.0",
+  "description": "A set of utility methods for unit tests in IBM Cloud SDKs",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"N/A\""
+  },
+  "author": "Dustin Popp",
+  "license": "Apache-2.0",
+  "dependencies": {
+    "expect": "^29.7.0"
+  },
+  "engines": {
+    "node": ">=18"
+  }
+}
diff --git a/test/unit/export-unit-test-utils.test.js b/test/unit/export-unit-test-utils.test.js
index 0434533d0..0e3e461ed 100644
--- a/test/unit/export-unit-test-utils.test.js
+++ b/test/unit/export-unit-test-utils.test.js
@@ -1,5 +1,5 @@
 /**
- * (C) Copyright IBM Corp. 2020, 2021.
+ * (C) Copyright IBM Corp. 2020, 2024.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-const { unitTestUtils } = require('../../dist');
+const unitTestUtils = require('../../sdk-test-utilities');
 
 describe('Unit Test Utils', () => {
   it('should be defined', () => {