diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index b847bc2d3e..5227ce2b49 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -17,10 +17,13 @@ jobs:
       NPM_CONFIG_UNSAFE_PERM: true
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: ${{ matrix.node_version }}
 
       - run: npm install -g npm@latest
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 9c5e8037c7..3c519e632e 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -13,6 +13,9 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: '18'
 
       - name: Install and Build 🔧
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index eac7627c9b..132fb5e606 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,12 +12,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: '16'
 
-      - uses: actions/checkout@v4
-
       - name: Lint changelog file
         uses: avto-dev/markdown-lint@v1
         with:
diff --git a/.github/workflows/peer-api.yml b/.github/workflows/peer-api.yml
index bfcd7ab152..f7b84a8bf0 100644
--- a/.github/workflows/peer-api.yml
+++ b/.github/workflows/peer-api.yml
@@ -20,7 +20,7 @@ jobs:
         run: npm install -g lerna@6.6.2
 
       - name: Install semver
-        run: npm install semver
+        run: npm install -g semver
 
       - name: Check API dependency semantics
         working-directory: packages
diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index ffebc82c29..281d1f4d29 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -15,6 +15,7 @@ jobs:
           - "14"
           - "16"
           - "18"
+          - "20"
     runs-on: ubuntu-latest
     env:
       NPM_CONFIG_UNSAFE_PERM: true
@@ -24,6 +25,9 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: ${{ matrix.node_version }}
 
       - run: npm install -g npm@latest
@@ -42,7 +46,7 @@ jobs:
       - name: Unit tests
         run: |
           # TODO(legendecas): webpack https://stackoverflow.com/questions/69692842/error-message-error0308010cdigital-envelope-routinesunsupported
-          if [ "${{ matrix.node_version }}" = "18" ]; then
+          if [ "${{ matrix.node_version }}" = "18" ] || [ "${{ matrix.node_version }}" == "20" ]; then
             export NODE_OPTIONS=--openssl-legacy-provider
           fi
           npm run test
@@ -59,6 +63,9 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: '18'
 
       - run: npm install -g npm@latest
@@ -85,6 +92,9 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: 16
 
       - name: Bootstrap
@@ -106,6 +116,9 @@ jobs:
         uses: actions/checkout@v4.0.0
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: 16
 
       - name: Bootstrap
@@ -133,6 +146,9 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: ${{ matrix.node_version }}
 
       - name: Build
diff --git a/.github/workflows/w3c-integration-test.yml b/.github/workflows/w3c-integration-test.yml
index 1df205b05d..723314cb05 100644
--- a/.github/workflows/w3c-integration-test.yml
+++ b/.github/workflows/w3c-integration-test.yml
@@ -16,6 +16,9 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
           node-version: '16'
 
       - name: Install and Bootstrap 🔧
diff --git a/.npmrc b/.npmrc
index b15c08c1bd..776cfbfbf2 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1,2 +1 @@
-//registry.npmjs.org/:_authToken=${NPM_TOKEN}
 lockfile-version=2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 336e211d6f..22ce796f14 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ For experimental package changes, see the [experimental CHANGELOG](experimental/
 
 * chore: type reference on zone.js [#4257](https://github.com/open-telemetry/opentelemetry-js/pull/4257) @legendecas
 * chore: no need for 'packages' in lerna.json [#4264](https://github.com/open-telemetry/opentelemetry-js/pull/4264) @trentm
+* test: add node 20 to test matrix [#4336](https://github.com/open-telemetry/opentelemetry-js/pull/4336) @dyladan
 
 ### :bug: (Bug Fix)
 
@@ -365,16 +366,8 @@ There are no changes between 1.0.0 and the previous 0.33.0 version.
 
 * fix(sdk-web): parse url with relative url string [#2972](https://github.com/open-telemetry/opentelemetry-js/pull/2972) @legendecas
 
-### :books: (Refine Doc)
-
-### :house: (Internal)
-
 ## 1.2.0
 
-### :boom: Breaking Change
-
-### :rocket: (Enhancement)
-
 ### :bug: (Bug Fix)
 
 * fix: sanitize attributes inputs [#2881](https://github.com/open-telemetry/opentelemetry-js/pull/2881) @legendecas
@@ -2290,7 +2283,9 @@ Released 2020-03-19
 
 Released 2020-03-16
 
-### This is a first official beta release, which provides almost fully complete metrics, tracing, and context propagation functionality but makes no promises around breaking changes
+### First official beta release
+
+* provides almost fully complete metrics, tracing, and context propagation functionality but makes **no promises** around breaking changes
 
 ### :boom: Breaking Change
 
diff --git a/README.md b/README.md
index f20b3e8950..a2c0387fdc 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,7 @@ If you are a library author looking to build OpenTelemetry into your library, pl
 
 | Platform Version    | Supported                                     |
 |---------------------|-----------------------------------------------|
+| Node.JS `v20`       | :heavy_check_mark:                            |
 | Node.JS `v18`       | :heavy_check_mark:                            |
 | Node.JS `v16`       | :heavy_check_mark:                            |
 | Node.JS `v14`       | :heavy_check_mark:                            |
diff --git a/experimental/CHANGELOG.md b/experimental/CHANGELOG.md
index d462a066fe..1bcefed6d3 100644
--- a/experimental/CHANGELOG.md
+++ b/experimental/CHANGELOG.md
@@ -15,10 +15,7 @@ All notable changes to experimental packages in this project will be documented
 * fix(sdk-logs): avoid map attribute set when count limit exceeded
 * fix(instrumentation-fetch): only access navigator if it is defined [#4063](https://github.com/open-telemetry/opentelemetry-js/pull/4063)
   * allows for experimental usage of this instrumentation with non-browser runtimes
-
-### :books: (Refine Doc)
-
-### :house: (Internal)
+* fix(instrumentation-http): memory leak when responses are not resumed
 
 ## 0.45.1
 
@@ -185,8 +182,6 @@ All notable changes to experimental packages in this project will be documented
 
 * doc(instrumentation): add limitiations section to readme [#3786](https://github.com/open-telemetry/opentelemetry-js/pull/3786) @flarna
 
-### :house: (Internal)
-
 ## 0.38.0
 
 ### :boom: Breaking Change
@@ -403,10 +398,6 @@ All notable changes to experimental packages in this project will be documented
 * fix(histogram): fix maximum when only values < -1 are provided [#3086](https://github.com/open-telemetry/opentelemetry-js/pull/3086) @pichlermarc
 * fix(instrumentation-grpc): always set grpc semcov status code attribute with numeric value [#3076](https://github.com/open-telemetry/opentelemetry-js/pull/3076) @blumamir
 
-### :books: (Refine Doc)
-
-### :house: (Internal)
-
 ## 0.30.0
 
 ### :boom: Breaking Change
@@ -481,10 +472,6 @@ All notable changes to experimental packages in this project will be documented
 * fix(metrics): specification compliant default metric unit [#2983](https://github.com/open-telemetry/opentelemetry-js/pull/2983) @andyfleming
 * fix(opentelemetry-instrumentation): use all provided patches for the same file [#2963](https://github.com/open-telemetry/opentelemetry-js/pull/2963) @Ugzuzg
 
-### :books: (Refine Doc)
-
-### :house: (Internal)
-
 ## 0.28.0
 
 ### :boom: Breaking Change
diff --git a/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts b/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts
index b4c6f0ade0..1030203a2c 100644
--- a/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts
+++ b/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts
@@ -360,8 +360,8 @@ describe('PrometheusExporter', () => {
           .get('http://localhost:9464/metrics', res => {
             errorHandler(done)(new Error('unreachable'));
           })
-          .on('error', err => {
-            assert(`${err}`.match('ECONNREFUSED'));
+          .on('error', (err: any) => {
+            assert.equal(err.code, 'ECONNREFUSED');
             done();
           });
       });
diff --git a/experimental/packages/opentelemetry-instrumentation-http/src/http.ts b/experimental/packages/opentelemetry-instrumentation-http/src/http.ts
index 9422bbc9ef..81e08ac860 100644
--- a/experimental/packages/opentelemetry-instrumentation-http/src/http.ts
+++ b/experimental/packages/opentelemetry-instrumentation-http/src/http.ts
@@ -330,6 +330,9 @@ export class HttpInstrumentation extends InstrumentationBase<Http> {
       'response',
       (response: http.IncomingMessage & { aborted?: boolean }) => {
         this._diag.debug('outgoingRequest on response()');
+        if (request.listenerCount('response') <= 1) {
+          response.resume();
+        }
         const responseAttributes =
           utils.getOutgoingRequestAttributesOnResponse(response);
         span.setAttributes(responseAttributes);
diff --git a/experimental/packages/opentelemetry-instrumentation-http/test/utils/rawRequest.ts b/experimental/packages/opentelemetry-instrumentation-http/test/utils/rawRequest.ts
index c2fefa284a..dc00fabfad 100644
--- a/experimental/packages/opentelemetry-instrumentation-http/test/utils/rawRequest.ts
+++ b/experimental/packages/opentelemetry-instrumentation-http/test/utils/rawRequest.ts
@@ -22,7 +22,7 @@ export async function sendRequestTwice(
   port: number
 ): Promise<Buffer> {
   return new Promise((resolve, reject) => {
-    const request = 'GET /raw HTTP/1.1\n\n';
+    const request = `GET /raw HTTP/1.1\r\nHost: ${host}:${port}\r\n\r\n`;
     const socket = net.createConnection({ host, port }, () => {
       socket.write(`${request}${request}`, err => {
         if (err) reject(err);
diff --git a/experimental/packages/opentelemetry-instrumentation/src/index.ts b/experimental/packages/opentelemetry-instrumentation/src/index.ts
index 8420c6968e..0185bfc79d 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/index.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/index.ts
@@ -15,7 +15,9 @@
  */
 
 export * from './autoLoader';
-export * from './platform/index';
+export { InstrumentationBase } from './platform/index';
+export { InstrumentationNodeModuleDefinition } from './instrumentationNodeModuleDefinition';
+export { InstrumentationNodeModuleFile } from './instrumentationNodeModuleFile';
 export * from './types';
 export * from './types_internal';
 export * from './utils';
diff --git a/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts b/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts
index 4b729fd439..4552f6dfab 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts
@@ -25,16 +25,19 @@ import {
   TracerProvider,
 } from '@opentelemetry/api';
 import * as shimmer from 'shimmer';
-import { InstrumentationModuleDefinition } from './platform/node';
-import * as types from './types';
+import {
+  InstrumentationModuleDefinition,
+  Instrumentation,
+  InstrumentationConfig,
+} from './types';
 
 /**
  * Base abstract internal class for instrumenting node and web plugins
  */
 export abstract class InstrumentationAbstract<T = any>
-  implements types.Instrumentation
+  implements Instrumentation
 {
-  protected _config: types.InstrumentationConfig;
+  protected _config: InstrumentationConfig;
 
   private _tracer: Tracer;
   private _meter: Meter;
@@ -43,7 +46,7 @@ export abstract class InstrumentationAbstract<T = any>
   constructor(
     public readonly instrumentationName: string,
     public readonly instrumentationVersion: string,
-    config: types.InstrumentationConfig = {}
+    config: InstrumentationConfig = {}
   ) {
     this._config = {
       enabled: true,
@@ -95,7 +98,7 @@ export abstract class InstrumentationAbstract<T = any>
   }
 
   /* Returns InstrumentationConfig */
-  public getConfig(): types.InstrumentationConfig {
+  public getConfig(): InstrumentationConfig {
     return this._config;
   }
 
@@ -103,7 +106,7 @@ export abstract class InstrumentationAbstract<T = any>
    * Sets InstrumentationConfig to this plugin
    * @param InstrumentationConfig
    */
-  public setConfig(config: types.InstrumentationConfig = {}): void {
+  public setConfig(config: InstrumentationConfig = {}): void {
     this._config = Object.assign({}, config);
   }
 
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleDefinition.ts b/experimental/packages/opentelemetry-instrumentation/src/instrumentationNodeModuleDefinition.ts
similarity index 100%
rename from experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleDefinition.ts
rename to experimental/packages/opentelemetry-instrumentation/src/instrumentationNodeModuleDefinition.ts
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleFile.ts b/experimental/packages/opentelemetry-instrumentation/src/instrumentationNodeModuleFile.ts
similarity index 100%
rename from experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleFile.ts
rename to experimental/packages/opentelemetry-instrumentation/src/instrumentationNodeModuleFile.ts
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/browser/index.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/browser/index.ts
index 24c76056a1..0b238b42b8 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/browser/index.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/platform/browser/index.ts
@@ -14,4 +14,4 @@
  * limitations under the License.
  */
 
-export * from './instrumentation';
+export { InstrumentationBase } from './instrumentation';
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/index.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/index.ts
index cdaf8858ce..81d3096252 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/index.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/platform/index.ts
@@ -14,4 +14,4 @@
  * limitations under the License.
  */
 
-export * from './node';
+export { InstrumentationBase } from './node';
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/index.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/node/index.ts
index 842797c341..1e81931b2a 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/node/index.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/platform/node/index.ts
@@ -13,7 +13,4 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-export * from './instrumentation';
-export * from './instrumentationNodeModuleDefinition';
-export * from './instrumentationNodeModuleFile';
-export * from './types';
+export { InstrumentationBase } from './instrumentation';
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts
index 03d8f6ba37..a4c11498c9 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts
@@ -26,7 +26,7 @@ import {
 } from './RequireInTheMiddleSingleton';
 import type { HookFn } from 'import-in-the-middle';
 import * as ImportInTheMiddle from 'import-in-the-middle';
-import { InstrumentationModuleDefinition } from './types';
+import { InstrumentationModuleDefinition } from '../../types';
 import { diag } from '@opentelemetry/api';
 import type { OnRequireFn } from 'require-in-the-middle';
 import { Hook } from 'require-in-the-middle';
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/types.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/node/types.ts
deleted file mode 100644
index 5cdfbc84c0..0000000000
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/node/types.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- *
- * 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
- *
- *      https://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.
- */
-
-export interface InstrumentationModuleFile<T> {
-  /** Name of file to be patched with relative path */
-  name: string;
-
-  moduleExports?: T;
-
-  /** Supported version this file */
-  supportedVersions: string[];
-
-  /** Method to patch the instrumentation  */
-  patch(moduleExports: T, moduleVersion?: string): T;
-
-  /** Method to patch the instrumentation  */
-
-  /** Method to unpatch the instrumentation  */
-  unpatch(moduleExports?: T, moduleVersion?: string): void;
-}
-
-export interface InstrumentationModuleDefinition<T> {
-  /** Module name or path  */
-  name: string;
-
-  moduleExports?: T;
-
-  /** Instrumented module version */
-  moduleVersion?: string;
-
-  /** Supported version of module  */
-  supportedVersions: string[];
-
-  /** Module internal files to be patched  */
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  files: InstrumentationModuleFile<any>[];
-
-  /** If set to true, the includePrerelease check will be included when calling semver.satisfies */
-  includePrerelease?: boolean;
-
-  /** Method to patch the instrumentation  */
-  patch?: (moduleExports: T, moduleVersion?: string) => T;
-
-  /** Method to unpatch the instrumentation  */
-  unpatch?: (moduleExports: T, moduleVersion?: string) => void;
-}
diff --git a/experimental/packages/opentelemetry-instrumentation/src/types.ts b/experimental/packages/opentelemetry-instrumentation/src/types.ts
index 837f096792..760e31165f 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/types.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/types.ts
@@ -77,3 +77,47 @@ export interface ShimWrapped extends Function {
   // eslint-disable-next-line @typescript-eslint/ban-types
   __original: Function;
 }
+
+export interface InstrumentationModuleFile<T> {
+  /** Name of file to be patched with relative path */
+  name: string;
+
+  moduleExports?: T;
+
+  /** Supported version this file */
+  supportedVersions: string[];
+
+  /** Method to patch the instrumentation  */
+  patch(moduleExports: T, moduleVersion?: string): T;
+
+  /** Method to patch the instrumentation  */
+
+  /** Method to unpatch the instrumentation  */
+  unpatch(moduleExports?: T, moduleVersion?: string): void;
+}
+
+export interface InstrumentationModuleDefinition<T> {
+  /** Module name or path  */
+  name: string;
+
+  moduleExports?: T;
+
+  /** Instrumented module version */
+  moduleVersion?: string;
+
+  /** Supported version of module  */
+  supportedVersions: string[];
+
+  /** Module internal files to be patched  */
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  files: InstrumentationModuleFile<any>[];
+
+  /** If set to true, the includePrerelease check will be included when calling semver.satisfies */
+  includePrerelease?: boolean;
+
+  /** Method to patch the instrumentation  */
+  patch?: (moduleExports: T, moduleVersion?: string) => T;
+
+  /** Method to unpatch the instrumentation  */
+  unpatch?: (moduleExports: T, moduleVersion?: string) => void;
+}
diff --git a/package.json b/package.json
index 4ea5fa489a..a2d3828583 100644
--- a/package.json
+++ b/package.json
@@ -37,11 +37,11 @@
 
     "comment_prepare_1": "echo scripts in this section automatically prepare releases. Intended for use by maintainers only.",
     "comment_prepare_2": "echo experimental preparation scripts only prepare experimental packages",
-    "prepare_release:experimental:patch": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:remove_stable && npm run _lerna:version_patch && npm run _restore:package-json",
-    "prepare_release:experimental:minor": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:remove_stable && npm run _lerna:version_minor && npm run _restore:package-json",
+    "prepare_release:experimental:patch": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:remove_stable && npm run _lerna:version_patch && npm run _restore:package-json && npm run _changelog:prepare_experimental",
+    "prepare_release:experimental:minor": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:remove_stable && npm run _lerna:version_minor && npm run _restore:package-json && npm run _changelog:prepare_experimental",
     "comment_prepare_3": "echo sdk preparation scripts prepare all stable and experimental packages",
-    "prepare_release:sdk:patch": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:version_patch && npm run _restore:package-json",
-    "prepare_release:sdk:minor": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:version_minor && npm run _restore:package-json",
+    "prepare_release:sdk:patch": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:version_patch && npm run _restore:package-json && npm run _changelog:prepare_experimental && npm run _changelog:prepare_stable",
+    "prepare_release:sdk:minor": "npm run _check:no_changes && npm run _backup:package-json && npm run _lerna:remove_api && npm run _lerna:version_minor && npm run _restore:package-json && npm run _changelog:prepare_experimental && npm run _changelog:prepare_stable",
     "release:publish": "lerna publish from-package --no-push --no-private --no-git-tag-version --no-verify-access",
 
     "comment_internal": "echo scripts below this line are for internal use",
@@ -51,7 +51,9 @@
     "_lerna:remove_api": "node -e 'var fs=require(\"fs\");var p=require(\"./package.json\");p.workspaces=p.workspaces.filter(p=>p!==\"api\");fs.writeFileSync(\"package.json\",JSON.stringify(p,null,2))'",
     "_lerna:remove_stable": "node -e 'var fs=require(\"fs\");var p=require(\"./package.json\");p.workspaces=p.workspaces.filter(p=>p!==\"packages/*\");fs.writeFileSync(\"package.json\",JSON.stringify(p,null,2))'",
     "_lerna:version_patch": "npx lerna version patch --exact --no-git-tag-version --no-push --yes",
-    "_lerna:version_minor": "npx lerna version minor --exact --no-git-tag-version --no-push --yes"
+    "_lerna:version_minor": "npx lerna version minor --exact --no-git-tag-version --no-push --yes",
+    "_changelog:prepare_experimental": "node scripts/update-changelog.js ./experimental/CHANGELOG.md ./experimental/packages/",
+    "_changelog:prepare_stable": "node scripts/update-changelog.js ./CHANGELOG.md ./packages/"
   },
   "repository": "open-telemetry/opentelemetry-js",
   "keywords": [
diff --git a/scripts/update-changelog.js b/scripts/update-changelog.js
new file mode 100644
index 0000000000..f131afc0ce
--- /dev/null
+++ b/scripts/update-changelog.js
@@ -0,0 +1,65 @@
+/**
+ * This script updates changelogs after lerna has updated versions in the respective areas (packages/*, experimental/packages/*)
+ * - removes all empty subsections (bugs, enhancements, etc.) in the changelog.
+ * - replaces the "Unreleased"-header with the version from the first non-private package in the directory (versions are expected to be uniform across a changelog)
+ * - adds a new "Unreleased"-header with empty subsections at the top
+ *
+ * Usage (from project root):
+ * - node scripts/update-changelog.js [PATH TO CHANGELOG] [DIRECTORY CONTAINING ASSOCIATED PACKAGES]
+ * Examples:
+ * - node scripts/update-changelog.js ./CHANGELOG.md ./packages
+ * - node scripts/update-changelog.js ./experimental/CHANGELOG.md ./experimental/packages
+ */
+
+const fs = require('fs');
+const path = require("path");
+
+const EMPTY_UNRELEASED_SECTION = `## Unreleased
+
+### :boom: Breaking Change
+
+### :rocket: (Enhancement)
+
+### :bug: (Bug Fix)
+
+### :books: (Refine Doc)
+
+### :house: (Internal)
+
+`
+
+function findFirstPackageVersion(basePath){
+  const packageDirs = fs.readdirSync(basePath);
+  for(const packageDir of packageDirs){
+    const packageJsonPath = path.join(basePath, packageDir, 'package.json');
+    try {
+      const packageJson =  JSON.parse(fs.readFileSync(packageJsonPath, 'utf-8'));
+
+      if(packageJson.private === true || packageJson.private === 'true'){
+        console.log('Skipping version from private package at', packageJsonPath);
+        continue;
+      }
+
+      if(packageJson.version != null){
+        return packageJson.version;
+      }
+
+      console.log('Version in', packageJsonPath, 'was null or undefined, skipping');
+    } catch (err) {
+      console.log('Could not get package JSON', packageJsonPath, err);
+    }
+  }
+  throw new Error('Unable to extract version from packages in ' + basePath);
+}
+
+// no special handling for bad args as this is only intended for use via predefined npm scripts.
+const changelogPath = path.resolve(process.argv[2]);
+const version = findFirstPackageVersion(path.resolve(process.argv[3]));
+
+const changelog = fs.readFileSync(changelogPath, 'utf8').toString()
+  // replace all empty sections
+  .replace(new RegExp('^###.*\n*(?=^##)', 'gm'), '')
+  // replace unreleased header with new unreleased section and a version header for the former unreleased section
+  .replace(RegExp('## Unreleased'), EMPTY_UNRELEASED_SECTION + '## ' + version);
+
+fs.writeFileSync(changelogPath, changelog);