diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index a3599e25c2..e70aeb73b0 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -33,7 +33,7 @@ jobs:
             packages/*/package-lock.json
             experimental/packages/*/node_modules
             experimental/packages/*/package-lock.json
-          key: node-tests-${{ runner.os }}-${{ matrix.node_version }}-${{ hashFiles('package.json', 'packages/*/package.json', 'experimental/packages/*/package.json') }}-04142022
+          key: node-tests-${{ runner.os }}-${{ matrix.node_version }}-${{ hashFiles('package.json', 'packages/*/package.json', 'experimental/packages/*/package.json') }}-04292022
 
       - name: Bootstrap
         run: |
@@ -72,7 +72,7 @@ jobs:
             packages/*/package-lock.json
             experimental/packages/*/node_modules
             experimental/packages/*/package-lock.json
-          key: browser-tests-${{ runner.os }}-${{ hashFiles('package.json', 'packages/*/package.json', 'experimental/packages/*/package.json') }}-04142022
+          key: browser-tests-${{ runner.os }}-${{ hashFiles('package.json', 'packages/*/package.json', 'experimental/packages/*/package.json') }}-04292022
 
       - name: Bootstrap
         run: |
@@ -112,7 +112,7 @@ jobs:
             packages/*/package-lock.json
             experimental/packages/*/node_modules
             experimental/packages/*/package-lock.json
-          key: webworker-tests-${{ runner.os }}-${{ hashFiles('package.json', 'packages/*/package.json', 'experimental/packages/*/package.json') }}-04142022
+          key: webworker-tests-${{ runner.os }}-${{ hashFiles('package.json', 'packages/*/package.json', 'experimental/packages/*/package.json') }}-04292022
 
       - name: Bootstrap
         run: |
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4fc0c59756..523099cf3c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,9 @@ All notable changes to this project will be documented in this file.
 
 ### :rocket: (Enhancement)
 
+* feat(ConsoleSpanExporter): export span links [#2917](https://github.com/open-telemetry/opentelemetry-js/pull/2917) @trentm
+* feat: warn when hooked module is already loaded [#2926](https://github.com/open-telemetry/opentelemetry-js/pull/2926) @nozik
+
 ### :bug: (Bug Fix)
 
 ### :books: (Refine Doc)
@@ -36,6 +39,7 @@ All notable changes to this project will be documented in this file.
 * chore: require changelog entry to merge PR [#2847](https://github.com/open-telemetry/opentelemetry-js/pull/2847) @dyladan
 * chore: remove peer API check [#2892](https://github.com/open-telemetry/opentelemetry-js/pull/2892) @dyladan
 * chore: merge lerna subdirectories into a single monorepo [#2892](https://github.com/open-telemetry/opentelemetry-js/pull/2892) @dyladan
+* chore: indent the code with eslint [#2923](https://github.com/open-telemetry/opentelemetry-js/pull/2923) @blumamir
 * `opentelemetry-propagator-jaeger`
   * [#2906](https://github.com/open-telemetry/opentelemetry-js/pull/2906) fix: support extract one digit '0' in jaeger traceFlag ([@shmilyoo](https://github.com/shmilyoo))
 
diff --git a/eslint.config.js b/eslint.config.js
index 61d75e5009..80f6b9242f 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -10,6 +10,7 @@ module.exports = {
     "project": "./tsconfig.json"
   },
   rules: {
+    "indent": ["error", 2, { "SwitchCase": 1 }],
     "no-trailing-spaces": "error",
     "eol-last": "error",
     "quotes": [2, "single", { "avoidEscape": true }],
diff --git a/examples/prometheus/images/prom-counter.png b/examples/prometheus/images/prom-counter.png
deleted file mode 100644
index 8d05e0fe59..0000000000
Binary files a/examples/prometheus/images/prom-counter.png and /dev/null differ
diff --git a/examples/prometheus/images/prom-updowncounter.png b/examples/prometheus/images/prom-updowncounter.png
deleted file mode 100644
index 3caa89ba19..0000000000
Binary files a/examples/prometheus/images/prom-updowncounter.png and /dev/null differ
diff --git a/examples/prometheus/index.js b/examples/prometheus/index.js
deleted file mode 100644
index 8f638d66a1..0000000000
--- a/examples/prometheus/index.js
+++ /dev/null
@@ -1,32 +0,0 @@
-'use strict';
-
-const { MeterProvider } = require('@opentelemetry/sdk-metrics-base');
-const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
-
-const { endpoint, port } = PrometheusExporter.DEFAULT_OPTIONS;
-
-const exporter = new PrometheusExporter({}, () => {
-  console.log(
-    `prometheus scrape endpoint: http://localhost:${port}${endpoint}`,
-  );
-});
-
-const meter = new MeterProvider({
-  exporter,
-  interval: 1000,
-}).getMeter('example-prometheus');
-
-const requestCounter = meter.createCounter('requests', {
-  description: 'Example of a Counter',
-});
-
-const upDownCounter = meter.createUpDownCounter('test_up_down_counter', {
-  description: 'Example of a UpDownCounter',
-});
-
-const labels = { pid: process.pid, environment: 'staging' };
-
-setInterval(() => {
-  requestCounter.add(1, labels);
-  upDownCounter.add(Math.random() > 0.5 ? 1 : -1, labels);
-}, 1000);
diff --git a/experimental/examples/.eslintrc.js b/experimental/examples/.eslintrc.js
new file mode 100644
index 0000000000..7927fa0c36
--- /dev/null
+++ b/experimental/examples/.eslintrc.js
@@ -0,0 +1,7 @@
+module.exports = {
+  "env": {
+      "mocha": true,
+      "node": true
+  },
+  ...require('../../eslint.config.js')
+}
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/README.md b/experimental/examples/README.md
similarity index 100%
rename from experimental/packages/opentelemetry-sdk-metrics-base/examples/README.md
rename to experimental/examples/README.md
diff --git a/examples/prometheus/README.md b/experimental/examples/prometheus/README.md
similarity index 100%
rename from examples/prometheus/README.md
rename to experimental/examples/prometheus/README.md
diff --git a/experimental/examples/prometheus/images/prom-counter.png b/experimental/examples/prometheus/images/prom-counter.png
new file mode 100644
index 0000000000..2628066088
Binary files /dev/null and b/experimental/examples/prometheus/images/prom-counter.png differ
diff --git a/experimental/examples/prometheus/images/prom-updowncounter.png b/experimental/examples/prometheus/images/prom-updowncounter.png
new file mode 100644
index 0000000000..9f595b806c
Binary files /dev/null and b/experimental/examples/prometheus/images/prom-updowncounter.png differ
diff --git a/experimental/examples/prometheus/index.js b/experimental/examples/prometheus/index.js
new file mode 100644
index 0000000000..17da9c3b00
--- /dev/null
+++ b/experimental/examples/prometheus/index.js
@@ -0,0 +1,38 @@
+'use strict';
+
+const { DiagConsoleLogger, DiagLogLevel, diag } = require('@opentelemetry/api');
+const { MeterProvider } = require('@opentelemetry/sdk-metrics-base');
+const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
+
+// Optional and only needed to see the internal diagnostic logging (during development)
+diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.DEBUG);
+
+const { endpoint, port } = PrometheusExporter.DEFAULT_OPTIONS;
+
+const exporter = new PrometheusExporter({}, () => {
+  console.log(
+    `prometheus scrape endpoint: http://localhost:${port}${endpoint}`,
+  );
+});
+
+// Creates MeterProvider and installs the exporter as a MetricReader
+const meterProvider = new MeterProvider();
+meterProvider.addMetricReader(exporter);
+const meter = meterProvider.getMeter('example-prometheus');
+
+// Creates metric instruments
+const requestCounter = meter.createCounter('requests', {
+  description: 'Example of a Counter',
+});
+
+const upDownCounter = meter.createUpDownCounter('test_up_down_counter', {
+  description: 'Example of a UpDownCounter',
+});
+
+const attributes = { pid: process.pid, environment: 'staging' };
+
+// Record metrics
+setInterval(() => {
+  requestCounter.add(1, attributes);
+  upDownCounter.add(Math.random() > 0.5 ? 1 : -1, attributes);
+}, 1000);
diff --git a/examples/prometheus/package.json b/experimental/examples/prometheus/package.json
similarity index 73%
rename from examples/prometheus/package.json
rename to experimental/examples/prometheus/package.json
index d6b75714e1..a3c5dbca51 100644
--- a/examples/prometheus/package.json
+++ b/experimental/examples/prometheus/package.json
@@ -1,6 +1,6 @@
 {
   "name": "prometheus-example",
-  "version": "0.25.0",
+  "version": "0.28.0",
   "description": "Example of using @opentelemetry/sdk-metrics-base and  @opentelemetry/exporter-prometheus",
   "main": "index.js",
   "scripts": {
@@ -10,7 +10,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@opentelemetry/api": "^1.0.2",
-    "@opentelemetry/exporter-prometheus": "0.25.0",
-    "@opentelemetry/sdk-metrics-base": "0.25.0"
+    "@opentelemetry/exporter-prometheus": "0.28.0",
+    "@opentelemetry/sdk-metrics-base": "0.28.0"
   }
 }
diff --git a/examples/prometheus/prometheus.yml b/experimental/examples/prometheus/prometheus.yml
similarity index 100%
rename from examples/prometheus/prometheus.yml
rename to experimental/examples/prometheus/prometheus.yml
diff --git a/experimental/packages/exporter-trace-otlp-grpc/package.json b/experimental/packages/exporter-trace-otlp-grpc/package.json
index 74ddcb2f5e..c63e084cff 100644
--- a/experimental/packages/exporter-trace-otlp-grpc/package.json
+++ b/experimental/packages/exporter-trace-otlp-grpc/package.json
@@ -60,7 +60,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/exporter-trace-otlp-grpc/test/OTLPTraceExporter.test.ts b/experimental/packages/exporter-trace-otlp-grpc/test/OTLPTraceExporter.test.ts
index 7d44d4938e..fc4383f183 100644
--- a/experimental/packages/exporter-trace-otlp-grpc/test/OTLPTraceExporter.test.ts
+++ b/experimental/packages/exporter-trace-otlp-grpc/test/OTLPTraceExporter.test.ts
@@ -97,14 +97,14 @@ const testCollectorExporter = (params: TestParams) =>
           );
           const credentials = params.useTLS
             ? grpc.ServerCredentials.createSsl(
-                fs.readFileSync('./test/certs/ca.crt'),
-                [
-                  {
-                    cert_chain: fs.readFileSync('./test/certs/server.crt'),
-                    private_key: fs.readFileSync('./test/certs/server.key'),
-                  },
-                ]
-              )
+              fs.readFileSync('./test/certs/ca.crt'),
+              [
+                {
+                  cert_chain: fs.readFileSync('./test/certs/server.crt'),
+                  private_key: fs.readFileSync('./test/certs/server.key'),
+                },
+              ]
+            )
             : grpc.ServerCredentials.createInsecure();
           server.bindAsync(address, credentials, () => {
             server.start();
@@ -120,10 +120,10 @@ const testCollectorExporter = (params: TestParams) =>
     beforeEach(done => {
       const credentials = params.useTLS
         ? grpc.credentials.createSsl(
-            fs.readFileSync('./test/certs/ca.crt'),
-            fs.readFileSync('./test/certs/client.key'),
-            fs.readFileSync('./test/certs/client.crt')
-          )
+          fs.readFileSync('./test/certs/ca.crt'),
+          fs.readFileSync('./test/certs/client.key'),
+          fs.readFileSync('./test/certs/client.crt')
+        )
         : undefined;
       collectorExporter = new OTLPTraceExporter({
         url: 'grpcs://' + address,
@@ -203,12 +203,12 @@ const testCollectorExporter = (params: TestParams) =>
     describe('export - with gzip compression', () => {
       beforeEach(() => {
         const credentials = params.useTLS
-        ? grpc.credentials.createSsl(
+          ? grpc.credentials.createSsl(
             fs.readFileSync('./test/certs/ca.crt'),
             fs.readFileSync('./test/certs/client.key'),
             fs.readFileSync('./test/certs/client.crt')
           )
-        : undefined;
+          : undefined;
         collectorExporter = new OTLPTraceExporter({
           url: 'grpcs://' + address,
           credentials,
@@ -254,12 +254,12 @@ const testCollectorExporter = (params: TestParams) =>
       const envSource = process.env;
       it('should return gzip compression algorithm on exporter', () => {
         const credentials = params.useTLS
-        ? grpc.credentials.createSsl(
+          ? grpc.credentials.createSsl(
             fs.readFileSync('./test/certs/ca.crt'),
             fs.readFileSync('./test/certs/client.key'),
             fs.readFileSync('./test/certs/client.crt')
           )
-        : undefined;
+          : undefined;
 
         envSource.OTEL_EXPORTER_OTLP_COMPRESSION='gzip';
         collectorExporter = new OTLPTraceExporter({
diff --git a/experimental/packages/exporter-trace-otlp-http/package.json b/experimental/packages/exporter-trace-otlp-http/package.json
index c4e631b0b8..f7528a5349 100644
--- a/experimental/packages/exporter-trace-otlp-http/package.json
+++ b/experimental/packages/exporter-trace-otlp-http/package.json
@@ -84,7 +84,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/experimental/packages/exporter-trace-otlp-http/src/platform/browser/OTLPTraceExporter.ts b/experimental/packages/exporter-trace-otlp-http/src/platform/browser/OTLPTraceExporter.ts
index 28411089f6..1f78f66ef6 100644
--- a/experimental/packages/exporter-trace-otlp-http/src/platform/browser/OTLPTraceExporter.ts
+++ b/experimental/packages/exporter-trace-otlp-http/src/platform/browser/OTLPTraceExporter.ts
@@ -52,9 +52,9 @@ export class OTLPTraceExporter
     return typeof config.url === 'string'
       ? config.url
       : getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT.length > 0
-      ? getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
-      : getEnv().OTEL_EXPORTER_OTLP_ENDPOINT.length > 0
-      ? appendResourcePathToUrlIfNotPresent(getEnv().OTEL_EXPORTER_OTLP_ENDPOINT, DEFAULT_COLLECTOR_RESOURCE_PATH)
-      : DEFAULT_COLLECTOR_URL;
+        ? getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+        : getEnv().OTEL_EXPORTER_OTLP_ENDPOINT.length > 0
+          ? appendResourcePathToUrlIfNotPresent(getEnv().OTEL_EXPORTER_OTLP_ENDPOINT, DEFAULT_COLLECTOR_RESOURCE_PATH)
+          : DEFAULT_COLLECTOR_URL;
   }
 }
diff --git a/experimental/packages/exporter-trace-otlp-proto/package.json b/experimental/packages/exporter-trace-otlp-proto/package.json
index f1c7071e65..7367f0efd5 100644
--- a/experimental/packages/exporter-trace-otlp-proto/package.json
+++ b/experimental/packages/exporter-trace-otlp-proto/package.json
@@ -59,7 +59,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/exporter-trace-otlp-proto/src/OTLPTraceExporter.ts b/experimental/packages/exporter-trace-otlp-proto/src/OTLPTraceExporter.ts
index bb26b949bc..e2e98de304 100644
--- a/experimental/packages/exporter-trace-otlp-proto/src/OTLPTraceExporter.ts
+++ b/experimental/packages/exporter-trace-otlp-proto/src/OTLPTraceExporter.ts
@@ -55,10 +55,10 @@ export class OTLPTraceExporter
     return typeof config.url === 'string'
       ? config.url
       : getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT.length > 0
-      ? getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
-      : getEnv().OTEL_EXPORTER_OTLP_ENDPOINT.length > 0
-      ? appendResourcePathToUrlIfNotPresent(getEnv().OTEL_EXPORTER_OTLP_ENDPOINT, DEFAULT_COLLECTOR_RESOURCE_PATH)
-      : DEFAULT_COLLECTOR_URL;
+        ? getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+        : getEnv().OTEL_EXPORTER_OTLP_ENDPOINT.length > 0
+          ? appendResourcePathToUrlIfNotPresent(getEnv().OTEL_EXPORTER_OTLP_ENDPOINT, DEFAULT_COLLECTOR_RESOURCE_PATH)
+          : DEFAULT_COLLECTOR_URL;
   }
 
   getServiceClientType() {
diff --git a/experimental/packages/opentelemetry-api-metrics/package.json b/experimental/packages/opentelemetry-api-metrics/package.json
index 036d5e7f9f..07e5dfa5d1 100644
--- a/experimental/packages/opentelemetry-api-metrics/package.json
+++ b/experimental/packages/opentelemetry-api-metrics/package.json
@@ -1,7 +1,6 @@
 {
   "name": "@opentelemetry/api-metrics",
   "version": "0.28.0",
-  "private": true,
   "description": "Public metrics API for OpenTelemetry",
   "main": "build/src/index.js",
   "module": "build/esm/index.js",
@@ -79,7 +78,7 @@
     "mocha": "7.2.0",
     "nyc": "15.1.0",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0"
   }
diff --git a/experimental/packages/opentelemetry-api-metrics/src/platform/browser/globalThis.ts b/experimental/packages/opentelemetry-api-metrics/src/platform/browser/globalThis.ts
index 693547b7c2..1dece570f3 100644
--- a/experimental/packages/opentelemetry-api-metrics/src/platform/browser/globalThis.ts
+++ b/experimental/packages/opentelemetry-api-metrics/src/platform/browser/globalThis.ts
@@ -29,7 +29,7 @@
 // eslint-disable-next-line node/no-unsupported-features/es-builtins, no-undef
 export const _globalThis: typeof globalThis =
   typeof globalThis === 'object' ? globalThis :
-  typeof self === 'object' ? self :
-  typeof window === 'object' ? window :
-  typeof global === 'object' ? global :
+    typeof self === 'object' ? self :
+      typeof window === 'object' ? window :
+        typeof global === 'object' ? global :
   {} as typeof globalThis;
diff --git a/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/package.json b/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/package.json
index 7c21499b26..0d05d93ec0 100644
--- a/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/package.json
+++ b/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/package.json
@@ -60,7 +60,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/package.json b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/package.json
index f9a080ad0b..d896cc02ec 100644
--- a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/package.json
+++ b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/package.json
@@ -84,7 +84,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/src/OTLPMetricExporterBase.ts b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/src/OTLPMetricExporterBase.ts
index 7e99662ada..75a0617bec 100644
--- a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/src/OTLPMetricExporterBase.ts
+++ b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/src/OTLPMetricExporterBase.ts
@@ -23,12 +23,12 @@ import { OTLPExporterBase } from '@opentelemetry/otlp-exporter-base';
 export class OTLPMetricExporterBase<T extends OTLPExporterBase<OTLPMetricExporterOptions,
   ResourceMetrics,
   otlpTypes.opentelemetryProto.collector.metrics.v1.ExportMetricsServiceRequest>>
-  implements PushMetricExporter {
+implements PushMetricExporter {
   public _otlpExporter: T;
   protected _preferredAggregationTemporality: AggregationTemporality;
 
   constructor(exporter: T,
-              config: OTLPMetricExporterOptions = defaultOptions) {
+    config: OTLPMetricExporterOptions = defaultOptions) {
     this._otlpExporter = exporter;
     this._preferredAggregationTemporality = config.aggregationTemporality ?? AggregationTemporality.CUMULATIVE;
   }
diff --git a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/common/transformMetrics.test.ts b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/common/transformMetrics.test.ts
index f5b401f304..6232752304 100644
--- a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/common/transformMetrics.test.ts
+++ b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/common/transformMetrics.test.ts
@@ -50,114 +50,114 @@ describe('transformMetrics', () => {
     });
 
     it('should convert counter', async () => {
-        const counter = mockCounter();
-        counter.add(1);
-        const metrics = (await collect());
-
-        const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
-        ensureCounterIsCorrect(
-          transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
-          hrTimeToNanoseconds(metric.dataPoints[0].endTime),
-          hrTimeToNanoseconds(metric.dataPoints[0].startTime)
-        );
-      }
+      const counter = mockCounter();
+      counter.add(1);
+      const metrics = (await collect());
+
+      const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
+      ensureCounterIsCorrect(
+        transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
+        hrTimeToNanoseconds(metric.dataPoints[0].endTime),
+        hrTimeToNanoseconds(metric.dataPoints[0].startTime)
+      );
+    }
     );
 
     it('should convert double counter', async () => {
-        const doubleCounter = mockDoubleCounter();
-        doubleCounter.add(8);
-        const metrics = (await collect());
-
-        const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
-        ensureDoubleCounterIsCorrect(
-          transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
-          hrTimeToNanoseconds(metric.dataPoints[0].endTime),
-          hrTimeToNanoseconds(metric.dataPoints[0].startTime),
-        );
-      }
+      const doubleCounter = mockDoubleCounter();
+      doubleCounter.add(8);
+      const metrics = (await collect());
+
+      const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
+      ensureDoubleCounterIsCorrect(
+        transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
+        hrTimeToNanoseconds(metric.dataPoints[0].endTime),
+        hrTimeToNanoseconds(metric.dataPoints[0].startTime),
+      );
+    }
     );
 
     it('should convert observable gauge', async () => {
-        let count = 0;
-        mockObservableGauge(observableResult => {
-          count++;
-          observableResult.observe(getValue(count), {});
-        });
-
-        // collect three times.
-        await collect();
-        await collect();
-        const metrics = (await collect());
-
-        const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
-        ensureObservableGaugeIsCorrect(
-          transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
-          hrTimeToNanoseconds(metric.dataPoints[0].endTime),
-          hrTimeToNanoseconds(metric.dataPoints[0].startTime),
-          -1,
-        );
-      }
+      let count = 0;
+      mockObservableGauge(observableResult => {
+        count++;
+        observableResult.observe(getValue(count), {});
+      });
+
+      // collect three times.
+      await collect();
+      await collect();
+      const metrics = (await collect());
+
+      const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
+      ensureObservableGaugeIsCorrect(
+        transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
+        hrTimeToNanoseconds(metric.dataPoints[0].endTime),
+        hrTimeToNanoseconds(metric.dataPoints[0].startTime),
+        -1,
+      );
+    }
     );
 
 
     it('should convert observable counter', async () => {
-        mockObservableCounter(observableResult => {
-          observableResult.observe(1, {});
-        });
-
-        // collect three times.
-        await collect();
-        await collect();
-        const metrics = (await collect());
-        // TODO: Collect seems to not deliver the last observation -> why?
-
-        const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
-        ensureObservableCounterIsCorrect(
-          transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
-          hrTimeToNanoseconds(metric.dataPoints[0].endTime),
-          hrTimeToNanoseconds(metric.dataPoints[0].startTime),
-          2,
-        );
-      }
+      mockObservableCounter(observableResult => {
+        observableResult.observe(1, {});
+      });
+
+      // collect three times.
+      await collect();
+      await collect();
+      const metrics = (await collect());
+      // TODO: Collect seems to not deliver the last observation -> why?
+
+      const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
+      ensureObservableCounterIsCorrect(
+        transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
+        hrTimeToNanoseconds(metric.dataPoints[0].endTime),
+        hrTimeToNanoseconds(metric.dataPoints[0].startTime),
+        2,
+      );
+    }
     );
 
     it('should convert observable up-down counter', async () => {
-        mockObservableUpDownCounter(observableResult => {
-          observableResult.observe(1, {});
-        });
-
-        // collect three times.
-        await collect();
-        await collect();
-        const metrics = (await collect());
-        // TODO: Collect seems to not deliver the last observation -> why?
-
-        const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
-        ensureObservableUpDownCounterIsCorrect(
-          transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
-          hrTimeToNanoseconds(metric.dataPoints[0].endTime),
-          hrTimeToNanoseconds(metric.dataPoints[0].startTime),
-          2,
-        );
-      }
+      mockObservableUpDownCounter(observableResult => {
+        observableResult.observe(1, {});
+      });
+
+      // collect three times.
+      await collect();
+      await collect();
+      const metrics = (await collect());
+      // TODO: Collect seems to not deliver the last observation -> why?
+
+      const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
+      ensureObservableUpDownCounterIsCorrect(
+        transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
+        hrTimeToNanoseconds(metric.dataPoints[0].endTime),
+        hrTimeToNanoseconds(metric.dataPoints[0].startTime),
+        2,
+      );
+    }
     );
 
     it('should convert observable histogram', async () => {
-        const histogram = mockHistogram();
-        histogram.record(7);
-        histogram.record(14);
-
-        const metrics = (await collect());
-
-        const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
-        ensureHistogramIsCorrect(
-          transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
-          hrTimeToNanoseconds(metric.dataPoints[0].endTime),
-          hrTimeToNanoseconds(metric.dataPoints[0].startTime),
-          [0, 100],
-          [0, 2, 0]
-        );
-      }
+      const histogram = mockHistogram();
+      histogram.record(7);
+      histogram.record(14);
+
+      const metrics = (await collect());
+
+      const metric = metrics.instrumentationLibraryMetrics[0].metrics[0];
+      ensureHistogramIsCorrect(
+        transform.toCollectorMetric(metric, AggregationTemporality.CUMULATIVE),
+        hrTimeToNanoseconds(metric.dataPoints[0].endTime),
+        hrTimeToNanoseconds(metric.dataPoints[0].startTime),
+        [0, 100],
+        [0, 2, 0]
+      );
+    }
     );
 
     it('should convert metric attributes value to string', () => {
diff --git a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/metricsHelper.ts b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/metricsHelper.ts
index a2852771a4..a38db6ca83 100644
--- a/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/metricsHelper.ts
+++ b/experimental/packages/opentelemetry-exporter-metrics-otlp-http/test/metricsHelper.ts
@@ -133,13 +133,13 @@ export function mockHistogram(): Histogram {
   const name = 'int-histogram';
 
   meterProvider.addView({
-      aggregation: new ExplicitBucketHistogramAggregation([0, 100])
-    },
-    {
-      instrument: {
-        name: name
-      }
-    });
+    aggregation: new ExplicitBucketHistogramAggregation([0, 100])
+  },
+  {
+    instrument: {
+      name: name
+    }
+  });
 
   return meter.createHistogram(name, {
     description: 'sample histogram description',
diff --git a/experimental/packages/opentelemetry-exporter-metrics-otlp-proto/package.json b/experimental/packages/opentelemetry-exporter-metrics-otlp-proto/package.json
index 9f374d91a2..a69ed4d616 100644
--- a/experimental/packages/opentelemetry-exporter-metrics-otlp-proto/package.json
+++ b/experimental/packages/opentelemetry-exporter-metrics-otlp-proto/package.json
@@ -60,7 +60,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/opentelemetry-exporter-prometheus/package.json b/experimental/packages/opentelemetry-exporter-prometheus/package.json
index bb478bf88e..932bf72287 100644
--- a/experimental/packages/opentelemetry-exporter-prometheus/package.json
+++ b/experimental/packages/opentelemetry-exporter-prometheus/package.json
@@ -1,7 +1,6 @@
 {
   "name": "@opentelemetry/exporter-prometheus",
   "version": "0.28.0",
-  "private": true,
   "description": "OpenTelemetry Exporter Prometheus provides a metrics endpoint for Prometheus",
   "main": "build/src/index.js",
   "types": "build/src/index.d.ts",
@@ -53,7 +52,7 @@
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts b/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts
index 0f3d507de9..0a0747b1ef 100644
--- a/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts
+++ b/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusExporter.test.ts
@@ -209,8 +209,8 @@ describe('PrometheusExporter', () => {
       );
       let resolve: () => void;
       const deferred = new Promise<void>(res => {
- resolve = res;
-});
+        resolve = res;
+      });
       mockResponse.end.callsFake(() => resolve());
       exporter.getMetricsRequestHandler(
         (mockRequest as unknown) as http.IncomingMessage,
diff --git a/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusSerializer.test.ts b/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusSerializer.test.ts
index ec83b35e14..c71c01310a 100644
--- a/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusSerializer.test.ts
+++ b/experimental/packages/opentelemetry-exporter-prometheus/test/PrometheusSerializer.test.ts
@@ -37,8 +37,8 @@ const attributes = {
 
 class TestMetricReader extends MetricReader {
   constructor() {
- super(AggregationTemporality.CUMULATIVE);
-}
+    super(AggregationTemporality.CUMULATIVE);
+  }
   async onForceFlush() {}
   async onShutdown() {}
 }
diff --git a/experimental/packages/opentelemetry-instrumentation-fetch/package.json b/experimental/packages/opentelemetry-instrumentation-fetch/package.json
index b62a61c594..8739ed75c5 100644
--- a/experimental/packages/opentelemetry-instrumentation-fetch/package.json
+++ b/experimental/packages/opentelemetry-instrumentation-fetch/package.json
@@ -77,7 +77,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/experimental/packages/opentelemetry-instrumentation-grpc/package.json b/experimental/packages/opentelemetry-instrumentation-grpc/package.json
index 6eb84d4ca7..1867d6fffe 100644
--- a/experimental/packages/opentelemetry-instrumentation-grpc/package.json
+++ b/experimental/packages/opentelemetry-instrumentation-grpc/package.json
@@ -64,7 +64,7 @@
     "rimraf": "3.0.2",
     "semver": "7.3.5",
     "sinon": "12.0.1",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/opentelemetry-instrumentation-grpc/test/helper.ts b/experimental/packages/opentelemetry-instrumentation-grpc/test/helper.ts
index 5620f233dc..5564c7c964 100644
--- a/experimental/packages/opentelemetry-instrumentation-grpc/test/helper.ts
+++ b/experimental/packages/opentelemetry-instrumentation-grpc/test/helper.ts
@@ -104,8 +104,8 @@ const checkEqual = (x: TestRequestResponse | TestRequestResponse[]) => (
   x instanceof Array && y instanceof Array
     ? arrayIsEqual(requestEqual)(x as any)(y as any)
     : !(x instanceof Array) && !(y instanceof Array)
-    ? requestEqual(x)(y)
-    : false;
+      ? requestEqual(x)(y)
+      : false;
 
 export const runTests = (
   plugin: GrpcInstrumentation,
@@ -292,7 +292,7 @@ export const runTests = (
                 'Unary Method Error',
                 call.request.num
               ) as grpcJs.ServiceError
-            )
+          )
           : callback(null, { num: call.request.num });
       },
 
@@ -304,7 +304,7 @@ export const runTests = (
                 'Unary Method Error',
                 call.request.num
               ) as grpcJs.ServiceError
-            )
+          )
           : callback(null, { num: call.request.num });
       },
 
diff --git a/experimental/packages/opentelemetry-instrumentation-http/package.json b/experimental/packages/opentelemetry-instrumentation-http/package.json
index e75414c193..3549375824 100644
--- a/experimental/packages/opentelemetry-instrumentation-http/package.json
+++ b/experimental/packages/opentelemetry-instrumentation-http/package.json
@@ -67,7 +67,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "superagent": "6.1.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/opentelemetry-instrumentation-http/src/http.ts b/experimental/packages/opentelemetry-instrumentation-http/src/http.ts
index 07dc688fac..c0c01b762c 100644
--- a/experimental/packages/opentelemetry-instrumentation-http/src/http.ts
+++ b/experimental/packages/opentelemetry-instrumentation-http/src/http.ts
@@ -683,7 +683,7 @@ export class HttpInstrumentation extends InstrumentationBase<Http> {
   private _callStartSpanHook(
     request: http.IncomingMessage | http.RequestOptions,
     hookFunc: Function | undefined,
-    ) {
+  ) {
     if(typeof hookFunc === 'function'){
       return safeExecuteInTheMiddle(
         () => hookFunc(request),
diff --git a/experimental/packages/opentelemetry-instrumentation-http/src/types.ts b/experimental/packages/opentelemetry-instrumentation-http/src/types.ts
index 6741d0a042..c0f2adab34 100644
--- a/experimental/packages/opentelemetry-instrumentation-http/src/types.ts
+++ b/experimental/packages/opentelemetry-instrumentation-http/src/types.ts
@@ -16,7 +16,7 @@
 import {
   Span,
   SpanAttributes,
- } from '@opentelemetry/api';
+} from '@opentelemetry/api';
 import type * as http from 'http';
 import type * as https from 'https';
 import {
diff --git a/experimental/packages/opentelemetry-instrumentation-http/test/functionals/https-package.test.ts b/experimental/packages/opentelemetry-instrumentation-http/test/functionals/https-package.test.ts
index 3735e530f9..5f1c11d4a7 100644
--- a/experimental/packages/opentelemetry-instrumentation-http/test/functionals/https-package.test.ts
+++ b/experimental/packages/opentelemetry-instrumentation-http/test/functionals/https-package.test.ts
@@ -100,10 +100,10 @@ describe('Packages', () => {
         const urlparsed = url.parse(
           name === 'got' && process.versions.node.startsWith('12')
             ? // there is an issue with got 9.6 version and node 12 when redirecting so url above will not work
-              // https://github.com/nock/nock/pull/1551
-              // https://github.com/sindresorhus/got/commit/bf1aa5492ae2bc78cbbec6b7d764906fb156e6c2#diff-707a4781d57c42085155dcb27edb9ccbR258
-              // TODO: check if this is still the case when new version
-              'https://www.google.com'
+          // https://github.com/nock/nock/pull/1551
+          // https://github.com/sindresorhus/got/commit/bf1aa5492ae2bc78cbbec6b7d764906fb156e6c2#diff-707a4781d57c42085155dcb27edb9ccbR258
+          // TODO: check if this is still the case when new version
+            'https://www.google.com'
             : 'https://www.google.com/search?q=axios&oq=axios&aqs=chrome.0.69i59l2j0l3j69i60.811j0j7&sourceid=chrome&ie=UTF-8'
         );
         const result = await httpPackage.get(urlparsed.href!);
diff --git a/experimental/packages/opentelemetry-instrumentation-xml-http-request/package.json b/experimental/packages/opentelemetry-instrumentation-xml-http-request/package.json
index 7b89a2073f..99e812244b 100644
--- a/experimental/packages/opentelemetry-instrumentation-xml-http-request/package.json
+++ b/experimental/packages/opentelemetry-instrumentation-xml-http-request/package.json
@@ -77,7 +77,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/experimental/packages/opentelemetry-instrumentation/package.json b/experimental/packages/opentelemetry-instrumentation/package.json
index 2f83e703fd..21e407bad9 100644
--- a/experimental/packages/opentelemetry-instrumentation/package.json
+++ b/experimental/packages/opentelemetry-instrumentation/package.json
@@ -100,7 +100,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts b/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts
index 687b611501..fb9f53fc70 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/instrumentation.ts
@@ -30,7 +30,7 @@ import * as types from './types';
  * Base abstract internal class for instrumenting node and web plugins
  */
 export abstract class InstrumentationAbstract<T = any>
-  implements types.Instrumentation {
+implements types.Instrumentation {
   protected _config: types.InstrumentationConfig;
 
   private _tracer: Tracer;
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts
index f67476930d..09d6a86b29 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentation.ts
@@ -59,6 +59,21 @@ export abstract class InstrumentationBase<T = any>
     }
   }
 
+  private _warnOnPreloadedModules(): void {
+    this._modules.forEach((module: InstrumentationModuleDefinition<T>) => {
+      const { name } = module;
+      try {
+        const resolvedModule = require.resolve(name);
+        if (require.cache[resolvedModule]) {
+          // Module is already cached, which means the instrumentation hook might not work
+          this._diag.warn(`Module ${name} has been loaded before ${this.instrumentationName} so it might not work, please initialize it before requiring ${name}`);
+        }
+      } catch {
+        // Module isn't available, we can simply skip
+      }
+    });
+  }
+
   private _extractPackageVersion(baseDir: string): string | undefined {
     try {
       // eslint-disable-next-line @typescript-eslint/no-var-requires
@@ -134,6 +149,7 @@ export abstract class InstrumentationBase<T = any>
       return;
     }
 
+    this._warnOnPreloadedModules();
     for (const module of this._modules) {
       this._hooks.push(
         RequireInTheMiddle(
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleDefinition.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleDefinition.ts
index 9014dcdeeb..8d4885c7b9 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleDefinition.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleDefinition.ts
@@ -20,7 +20,7 @@ import {
 } from './types';
 
 export class InstrumentationNodeModuleDefinition<T>
-  implements InstrumentationModuleDefinition<T> {
+implements InstrumentationModuleDefinition<T> {
   files: InstrumentationModuleFile<T>[];
   constructor(
     public name: string,
diff --git a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleFile.ts b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleFile.ts
index bf5a9a71c1..80b617c5d7 100644
--- a/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleFile.ts
+++ b/experimental/packages/opentelemetry-instrumentation/src/platform/node/instrumentationNodeModuleFile.ts
@@ -18,7 +18,7 @@ import { InstrumentationModuleFile } from './types';
 import { normalize } from 'path';
 
 export class InstrumentationNodeModuleFile<T>
-  implements InstrumentationModuleFile<T> {
+implements InstrumentationModuleFile<T> {
   public name: string;
   constructor(
     name: string,
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/.eslintrc.json b/experimental/packages/opentelemetry-sdk-metrics-base/examples/.eslintrc.json
deleted file mode 100644
index 6000f93619..0000000000
--- a/experimental/packages/opentelemetry-sdk-metrics-base/examples/.eslintrc.json
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-  "env": {
-    "node": true
-  },
-  "extends": "airbnb-base",
-  "parserOptions": {
-    "sourceType": "script"
-  },
-  "rules": {
-    "strict": ["error", "global"],
-    "no-use-before-define": ["error", "nofunc"],
-    "no-console": "off",
-    "import/no-unresolved": "off",
-    "no-unused-vars": ["error", { "argsIgnorePattern": "^_" }]
-  },
-  "ignorePatterns": "**/*_pb.js"
-}
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/README.md b/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/README.md
deleted file mode 100644
index 5578b239c3..0000000000
--- a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/README.md
+++ /dev/null
@@ -1,49 +0,0 @@
-# Overview
-
-OpenTelemetry metrics allow a user to collect data and export it to a metrics backend like Prometheus.
-
-This is a simple example that demonstrates basic metrics collection and exports those metrics to a Prometheus compatible endpoint.
-
-## Installation
-
-```sh
-# from this directory
-npm install
-```
-
-How to setup [Prometheus](https://prometheus.io/docs/prometheus/latest/getting_started/) please check
-[Setup Prometheus](https://github.com/open-telemetry/opentelemetry-js/tree/main/experimental/packages/opentelemetry-exporter-prometheus)
-
-## Run the Application
-
-- Run the example
-
-### Observer
-
-```sh
-npm run start:observer
-```
-
-### Prometheus
-
-1. In prometheus search for "cpu_core_usage", "cpu_temp_per_app", "cpu_usage_per_app"
-
-### Links
-
-1. Prometheus Scrape Endpoint <http://localhost:9464/metrics>
-2. Prometheus graph <http://localhost:9090/graph>
-
-### Example
-
-![Screenshot of the running example](metrics/observer.png)
-![Screenshot of the running example](metrics/observer_batch.png)
-![Screenshot of the running example](metrics/observer_batch2.png)
-
-## Useful links
-
-- For more information on OpenTelemetry, visit: <https://opentelemetry.io/>
-- For more information on OpenTelemetry metrics, visit: <https://github.com/open-telemetry/opentelemetry-js/tree/main/experimental/packages/opentelemetry-sdk-metrics-base>
-
-## LICENSE
-
-Apache License 2.0
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.js b/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.js
deleted file mode 100644
index 87d0e3817c..0000000000
--- a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.js
+++ /dev/null
@@ -1,42 +0,0 @@
-'use strict';
-
-const { MeterProvider } = require('@opentelemetry/sdk-metrics-base');
-const { DiagConsoleLogger, DiagLogLevel, diag } = require('@opentelemetry/api');
-const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
-
-// Optional and only needed to see the internal diagnostic logging (during development)
-diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.DEBUG);
-
-const { endpoint, port } = PrometheusExporter.DEFAULT_OPTIONS;
-
-const exporter = new PrometheusExporter({}, () => {
-  console.log(
-    `prometheus scrape endpoint: http://localhost:${port}${endpoint}`,
-  );
-});
-
-const meter = new MeterProvider({
-  exporter,
-  interval: 2000,
-}).getMeter('example-meter');
-
-// async callback - for operation that needs to wait for value
-meter.createObservableGauge('cpu_core_usage', {
-  description: 'Example of an async observable gauge with callback',
-}, async (observableResult) => {
-  const value = await getAsyncValue();
-  observableResult.observe(value, { core: '1' });
-  observableResult.observe(value, { core: '2' });
-});
-
-function getAsyncValue() {
-  return new Promise((resolve) => {
-    setTimeout(() => {
-      resolve(Math.random());
-    }, 100);
-  });
-}
-
-setInterval(function () {
-  console.log("simulating an app being kept open")
-}, 5000);
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.png b/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.png
deleted file mode 100644
index b8c3c48910..0000000000
Binary files a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.png and /dev/null differ
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer_batch.png b/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer_batch.png
deleted file mode 100644
index 32b5f25fe2..0000000000
Binary files a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer_batch.png and /dev/null differ
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer_batch2.png b/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer_batch2.png
deleted file mode 100644
index a8792e913a..0000000000
Binary files a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer_batch2.png and /dev/null differ
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/package.json b/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/package.json
deleted file mode 100644
index eb518107c5..0000000000
--- a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/package.json
+++ /dev/null
@@ -1,35 +0,0 @@
-{
-  "name": "example-metrics",
-  "private": true,
-  "version": "0.27.0",
-  "description": "Example of using @opentelemetry/sdk-metrics-base",
-  "main": "index.js",
-  "scripts": {
-    "start:observer": "node metrics/observer.js"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+ssh://git@github.com/open-telemetry/opentelemetry-js.git"
-  },
-  "keywords": [
-    "opentelemetry",
-    "http",
-    "tracing",
-    "metrics"
-  ],
-  "engines": {
-    "node": ">=8"
-  },
-  "author": "OpenTelemetry Authors",
-  "license": "Apache-2.0",
-  "bugs": {
-    "url": "https://github.com/open-telemetry/opentelemetry-js/issues"
-  },
-  "dependencies": {
-    "@opentelemetry/api": "^1.0.0",
-    "@opentelemetry/core": "^1.1.1",
-    "@opentelemetry/exporter-prometheus": "^0.27.0",
-    "@opentelemetry/sdk-metrics-base": "^0.27.0"
-  },
-  "homepage": "https://github.com/open-telemetry/opentelemetry-js#readme"
-}
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/package.json b/experimental/packages/opentelemetry-sdk-metrics-base/package.json
index 1d73fd526d..09dbd8c8b2 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/package.json
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/package.json
@@ -1,7 +1,6 @@
 {
   "name": "@opentelemetry/sdk-metrics-base",
   "version": "0.28.0",
-  "private": true,
   "description": "Work in progress OpenTelemetry metrics SDK",
   "main": "build/src/index.js",
   "module": "build/esm/index.js",
@@ -71,7 +70,7 @@
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "sinon": "11.1.2",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/AlwaysSampleExemplarFilter.ts b/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/AlwaysSampleExemplarFilter.ts
index 83859dd326..d2c52cdc0e 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/AlwaysSampleExemplarFilter.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/AlwaysSampleExemplarFilter.ts
@@ -27,6 +27,6 @@ export class AlwaysSampleExemplarFilter implements ExemplarFilter {
     _attributes: MetricAttributes,
     _ctx: Context
   ): boolean {
-      return true;
+    return true;
   }
 }
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/ExemplarReservoir.ts b/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/ExemplarReservoir.ts
index 6d1245d33b..190976502e 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/ExemplarReservoir.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/ExemplarReservoir.ts
@@ -67,7 +67,7 @@ class ExemplarBucket {
   collect(pointAttributes: MetricAttributes): Exemplar | null {
     if (!this._offered) return null;
     const currentAttributes = this.attributes;
-      // filter attributes
+    // filter attributes
     Object.keys(pointAttributes).forEach(key => {
       if (pointAttributes[key] === currentAttributes[key]) {
         delete currentAttributes[key];
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/NeverSampleExemplarFilter.ts b/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/NeverSampleExemplarFilter.ts
index 1f40143f1f..374f35e52f 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/NeverSampleExemplarFilter.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/src/exemplar/NeverSampleExemplarFilter.ts
@@ -26,6 +26,6 @@ export class NeverSampleExemplarFilter implements ExemplarFilter {
     _attributes: MetricAttributes,
     _ctx: Context
   ): boolean {
-      return false;
+    return false;
   }
 }
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/src/export/MetricExporter.ts b/experimental/packages/opentelemetry-sdk-metrics-base/src/export/MetricExporter.ts
index 2d84d94eac..06375d4da5 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/src/export/MetricExporter.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/src/export/MetricExporter.ts
@@ -41,9 +41,9 @@ export class ConsoleMetricExporter implements PushMetricExporter {
 
   export(metrics: ResourceMetrics, resultCallback: (result: ExportResult) => void) {
     return resultCallback({
-        code: ExportResultCode.FAILED,
-        error: new Error('Method not implemented')
-      });
+      code: ExportResultCode.FAILED,
+      error: new Error('Method not implemented')
+    });
   }
 
   getPreferredAggregationTemporality() {
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/src/utils.ts b/experimental/packages/opentelemetry-sdk-metrics-base/src/utils.ts
index 3b08c43b78..b1bdbf7bd7 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/src/utils.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/src/utils.ts
@@ -83,11 +83,11 @@ export function callWithTimeout<T>(promise: Promise<T>, timeout: number): Promis
   });
 
   return Promise.race([promise, timeoutPromise]).then(result => {
-      clearTimeout(timeoutHandle);
-      return result;
-    },
-    reason => {
-      clearTimeout(timeoutHandle);
-      throw reason;
-    });
+    clearTimeout(timeoutHandle);
+    return result;
+  },
+  reason => {
+    clearTimeout(timeoutHandle);
+    throw reason;
+  });
 }
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/test/MeterProvider.test.ts b/experimental/packages/opentelemetry-sdk-metrics-base/test/MeterProvider.test.ts
index 814044891a..eff5223e29 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/test/MeterProvider.test.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/test/MeterProvider.test.ts
@@ -116,13 +116,13 @@ describe('MeterProvider', () => {
 
       // Throws with wildcard character only.
       assert.throws(() => meterProvider.addView({
-          name: 'renamed-instrument'
-        },
-        {
-          instrument: {
-            name: '*'
-          }
-        }));
+        name: 'renamed-instrument'
+      },
+      {
+        instrument: {
+          name: '*'
+        }
+      }));
 
       // Throws with wildcard character in instrument name.
       assert.throws(() => meterProvider.addView({
@@ -138,13 +138,13 @@ describe('MeterProvider', () => {
       const meterProvider = new MeterProvider({ resource: defaultResource });
 
       assert.throws(() => meterProvider.addView({
-          name: 'renamed-instrument'
-        },
-        {
-          instrument: {
-            type: InstrumentType.COUNTER
-          }
-        }));
+        name: 'renamed-instrument'
+      },
+      {
+        instrument: {
+          type: InstrumentType.COUNTER
+        }
+      }));
     });
 
     it('with named view and no instrument selector should throw', () => {
@@ -155,9 +155,9 @@ describe('MeterProvider', () => {
       }));
 
       assert.throws(() => meterProvider.addView({
-          name: 'renamed-instrument'
-        },
-        {}));
+        name: 'renamed-instrument'
+      },
+      {}));
     });
 
     it('with no view parameters should throw', () => {
@@ -174,14 +174,14 @@ describe('MeterProvider', () => {
 
       // Add view to rename 'non-renamed-instrument' to 'renamed-instrument'
       meterProvider.addView({
-          name: 'renamed-instrument',
-          description: 'my renamed instrument'
+        name: 'renamed-instrument',
+        description: 'my renamed instrument'
+      },
+      {
+        instrument: {
+          name: 'non-renamed-instrument',
         },
-        {
-          instrument: {
-            name: 'non-renamed-instrument',
-          },
-        });
+      });
 
       // Create meter and instrument.
       const myMeter = meterProvider.getMeter('meter1', 'v1.0.0');
@@ -233,13 +233,13 @@ describe('MeterProvider', () => {
 
       // Add view to drop all attributes except 'attrib1'
       meterProvider.addView({
-          attributeKeys: ['attrib1']
-        },
-        {
-          instrument: {
-            name: 'non-renamed-instrument',
-          }
-        });
+        attributeKeys: ['attrib1']
+      },
+      {
+        instrument: {
+          name: 'non-renamed-instrument',
+        }
+      });
 
       // Create meter and instrument.
       const myMeter = meterProvider.getMeter('meter1', 'v1.0.0');
@@ -289,13 +289,13 @@ describe('MeterProvider', () => {
 
       // Add view that renames 'test-counter' to 'renamed-instrument'
       meterProvider.addView({
-          name: 'renamed-instrument'
-        },
-        {
-          instrument: {
-            name: 'test-counter'
-          }
-        });
+        name: 'renamed-instrument'
+      },
+      {
+        instrument: {
+          name: 'test-counter'
+        }
+      });
 
       // Create two meters.
       const meter1 = meterProvider.getMeter('meter1', 'v1.0.0');
@@ -354,16 +354,16 @@ describe('MeterProvider', () => {
 
       // Add view that renames 'test-counter' to 'renamed-instrument' on 'meter1'
       meterProvider.addView({
-          name: 'renamed-instrument'
+        name: 'renamed-instrument'
+      },
+      {
+        instrument: {
+          name: 'test-counter'
         },
-        {
-          instrument: {
-            name: 'test-counter'
-          },
-          meter: {
-            name: 'meter1'
-          }
-        });
+        meter: {
+          name: 'meter1'
+        }
+      });
 
       // Create two meters.
       const meter1 = meterProvider.getMeter('meter1', 'v1.0.0');
@@ -421,28 +421,28 @@ describe('MeterProvider', () => {
 
       // Add Views to rename both instruments (of different types) to the same name.
       meterProvider.addView({
-          name: 'renamed-instrument'
+        name: 'renamed-instrument'
+      },
+      {
+        instrument: {
+          name: 'test-counter'
         },
-        {
-          instrument: {
-            name: 'test-counter'
-          },
-          meter: {
-            name: 'meter1'
-          }
-        });
+        meter: {
+          name: 'meter1'
+        }
+      });
 
       meterProvider.addView({
-          name: 'renamed-instrument'
+        name: 'renamed-instrument'
+      },
+      {
+        instrument: {
+          name: 'test-histogram'
         },
-        {
-          instrument: {
-            name: 'test-histogram'
-          },
-          meter: {
-            name: 'meter1'
-          }
-        });
+        meter: {
+          name: 'meter1'
+        }
+      });
 
       // Create meter and instruments.
       const meter = meterProvider.getMeter('meter1', 'v1.0.0');
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/test/export/PeriodicExportingMetricReader.test.ts b/experimental/packages/opentelemetry-sdk-metrics-base/test/export/PeriodicExportingMetricReader.test.ts
index 1cde6184c2..f5f30e03ab 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/test/export/PeriodicExportingMetricReader.test.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/test/export/PeriodicExportingMetricReader.test.ts
@@ -108,10 +108,10 @@ describe('PeriodicExportingMetricReader', () => {
     it('should construct PeriodicExportingMetricReader without exceptions', () => {
       const exporter = new TestDeltaMetricExporter();
       const reader = new PeriodicExportingMetricReader({
-          exporter: exporter,
-          exportIntervalMillis: 4000,
-          exportTimeoutMillis: 3000
-        }
+        exporter: exporter,
+        exportIntervalMillis: 4000,
+        exportTimeoutMillis: 3000
+      }
       );
       assert.strictEqual(reader.getPreferredAggregationTemporality(), exporter.getPreferredAggregationTemporality());
     });
diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/test/state/MetricStorageRegistry.test.ts b/experimental/packages/opentelemetry-sdk-metrics-base/test/state/MetricStorageRegistry.test.ts
index cd355a6d54..163cd762ff 100644
--- a/experimental/packages/opentelemetry-sdk-metrics-base/test/state/MetricStorageRegistry.test.ts
+++ b/experimental/packages/opentelemetry-sdk-metrics-base/test/state/MetricStorageRegistry.test.ts
@@ -32,9 +32,9 @@ import {
 
 class TestMetricStorage extends MetricStorage {
   collect(collector: MetricCollectorHandle,
-          collectors: MetricCollectorHandle[],
-          sdkStartTime: HrTime,
-          collectionTime: HrTime,
+    collectors: MetricCollectorHandle[],
+    sdkStartTime: HrTime,
+    collectionTime: HrTime,
   ): Promise<Maybe<MetricData>> {
     return Promise.resolve(undefined);
   }
@@ -74,8 +74,8 @@ describe('MetricStorageRegistry', () => {
     });
 
     function testConflictingRegistration(existingDescriptor: InstrumentDescriptor,
-                                         otherDescriptor: InstrumentDescriptor,
-                                         expectedLog: string) {
+      otherDescriptor: InstrumentDescriptor,
+      expectedLog: string) {
       const registry = new MetricStorageRegistry();
 
       const storage = new TestMetricStorage(existingDescriptor);
diff --git a/experimental/packages/opentelemetry-sdk-node/package.json b/experimental/packages/opentelemetry-sdk-node/package.json
index 84ff5b699a..ce20bb42d9 100644
--- a/experimental/packages/opentelemetry-sdk-node/package.json
+++ b/experimental/packages/opentelemetry-sdk-node/package.json
@@ -73,7 +73,7 @@
     "semver": "7.3.5",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   }
 }
diff --git a/experimental/packages/otlp-exporter-base/package.json b/experimental/packages/otlp-exporter-base/package.json
index d82df98eaf..4368373947 100644
--- a/experimental/packages/otlp-exporter-base/package.json
+++ b/experimental/packages/otlp-exporter-base/package.json
@@ -69,7 +69,7 @@
     "nyc": "15.1.0",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/otlp-grpc-exporter-base/package.json b/experimental/packages/otlp-grpc-exporter-base/package.json
index d8066b89b7..e3c34d8c02 100644
--- a/experimental/packages/otlp-grpc-exporter-base/package.json
+++ b/experimental/packages/otlp-grpc-exporter-base/package.json
@@ -61,7 +61,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "@opentelemetry/sdk-trace-base": "1.2.0",
     "@opentelemetry/resources": "1.2.0",
diff --git a/experimental/packages/otlp-proto-exporter-base/package.json b/experimental/packages/otlp-proto-exporter-base/package.json
index bf95c9936c..98e0e27c40 100644
--- a/experimental/packages/otlp-proto-exporter-base/package.json
+++ b/experimental/packages/otlp-proto-exporter-base/package.json
@@ -7,7 +7,6 @@
   "repository": "open-telemetry/opentelemetry-js",
   "scripts": {
     "prepublishOnly": "npm run compile",
-    "codecov": "nyc report --reporter=json && codecov -f coverage/*.json -p ../../../",
     "compile": "tsc --build",
     "clean": "tsc --build --clean",
     "lint": "eslint . --ext .ts",
@@ -15,8 +14,6 @@
     "postcompile": "npm run submodule && npm run protos:copy",
     "protos:copy": "cpx protos/opentelemetry/**/*.* build/protos/opentelemetry",
     "submodule": "git submodule sync --recursive && git submodule update --init --recursive",
-    "tdd": "npm run test -- --watch-extensions ts --watch",
-    "test": "nyc ts-mocha -p tsconfig.json 'test/**/*.test.ts'",
     "version": "node ../../../scripts/version-update.js",
     "watch": "npm run protos:copy && tsc -w",
     "precompile": "lerna run version --scope $(npm pkg get name) --include-dependencies",
@@ -61,7 +58,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/experimental/packages/otlp-transformer/package.json b/experimental/packages/otlp-transformer/package.json
index 15de49efef..9ec6ec2d84 100644
--- a/experimental/packages/otlp-transformer/package.json
+++ b/experimental/packages/otlp-transformer/package.json
@@ -64,7 +64,7 @@
     "protobufjs": "6.11.2",
     "rimraf": "3.0.2",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0"
   },
diff --git a/experimental/packages/otlp-transformer/src/metrics/index.ts b/experimental/packages/otlp-transformer/src/metrics/index.ts
index e5a8560ded..9022048c29 100644
--- a/experimental/packages/otlp-transformer/src/metrics/index.ts
+++ b/experimental/packages/otlp-transformer/src/metrics/index.ts
@@ -20,7 +20,7 @@ import type { IExportMetricsServiceRequest } from './types';
 import { AggregationTemporality } from '@opentelemetry/sdk-metrics-base';
 
 export function createExportMetricsServiceRequest(resourceMetrics: ResourceMetrics,
-                                                  aggregationTemporality: AggregationTemporality): IExportMetricsServiceRequest | null {
+  aggregationTemporality: AggregationTemporality): IExportMetricsServiceRequest | null {
   return {
     resourceMetrics: [{
       resource: {
diff --git a/packages/opentelemetry-context-async-hooks/package.json b/packages/opentelemetry-context-async-hooks/package.json
index 436ebeb04b..288e278499 100644
--- a/packages/opentelemetry-context-async-hooks/package.json
+++ b/packages/opentelemetry-context-async-hooks/package.json
@@ -51,7 +51,7 @@
     "mocha": "7.2.0",
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/packages/opentelemetry-context-async-hooks/src/AbstractAsyncHooksContextManager.ts b/packages/opentelemetry-context-async-hooks/src/AbstractAsyncHooksContextManager.ts
index 4eb200c0aa..7c8748f258 100644
--- a/packages/opentelemetry-context-async-hooks/src/AbstractAsyncHooksContextManager.ts
+++ b/packages/opentelemetry-context-async-hooks/src/AbstractAsyncHooksContextManager.ts
@@ -37,7 +37,7 @@ const ADD_LISTENER_METHODS = [
 ];
 
 export abstract class AbstractAsyncHooksContextManager
-  implements ContextManager {
+implements ContextManager {
   abstract active(): Context;
 
   abstract with<A extends unknown[], F extends (...args: A) => ReturnType<F>>(
diff --git a/packages/opentelemetry-context-zone-peer-dep/package.json b/packages/opentelemetry-context-zone-peer-dep/package.json
index 0c95368433..382226ecc4 100644
--- a/packages/opentelemetry-context-zone-peer-dep/package.json
+++ b/packages/opentelemetry-context-zone-peer-dep/package.json
@@ -74,7 +74,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/packages/opentelemetry-context-zone-peer-dep/test/ZoneContextManager.test.ts b/packages/opentelemetry-context-zone-peer-dep/test/ZoneContextManager.test.ts
index d612d4ca6b..542221be59 100644
--- a/packages/opentelemetry-context-zone-peer-dep/test/ZoneContextManager.test.ts
+++ b/packages/opentelemetry-context-zone-peer-dep/test/ZoneContextManager.test.ts
@@ -272,13 +272,13 @@ describe('ZoneContextManager', () => {
       const fn: any = contextManager.bind(
         context,
         () => {
-        assert.strictEqual(
-          contextManager.active(),
-          context,
-          'should have context'
-        );
-        return done();
-      });
+          assert.strictEqual(
+            contextManager.active(),
+            context,
+            'should have context'
+          );
+          return done();
+        });
       fn();
     });
 
diff --git a/packages/opentelemetry-context-zone/package.json b/packages/opentelemetry-context-zone/package.json
index 30a1e944b3..38e377a1f4 100644
--- a/packages/opentelemetry-context-zone/package.json
+++ b/packages/opentelemetry-context-zone/package.json
@@ -67,7 +67,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/packages/opentelemetry-core/package.json b/packages/opentelemetry-core/package.json
index 9a801c8b74..40ce2d42de 100644
--- a/packages/opentelemetry-core/package.json
+++ b/packages/opentelemetry-core/package.json
@@ -83,7 +83,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0"
   },
diff --git a/packages/opentelemetry-core/src/baggage/utils.ts b/packages/opentelemetry-core/src/baggage/utils.ts
index f75fe0cfc9..390b143ca7 100644
--- a/packages/opentelemetry-core/src/baggage/utils.ts
+++ b/packages/opentelemetry-core/src/baggage/utils.ts
@@ -26,7 +26,7 @@ type ParsedBaggageKeyValue = { key: string, value: string, metadata: BaggageEntr
 export function serializeKeyPairs(keyPairs: string[]): string {
   return keyPairs.reduce((hValue: string, current: string) => {
     const value = `${hValue}${hValue !== '' ? BAGGAGE_ITEMS_SEPARATOR : ''
-      }${current}`;
+    }${current}`;
     return value.length > BAGGAGE_MAX_TOTAL_LENGTH ? hValue : value;
   }, '');
 }
diff --git a/packages/opentelemetry-core/src/platform/browser/globalThis.ts b/packages/opentelemetry-core/src/platform/browser/globalThis.ts
index 53dd1c3d02..aa3c2fec6e 100644
--- a/packages/opentelemetry-core/src/platform/browser/globalThis.ts
+++ b/packages/opentelemetry-core/src/platform/browser/globalThis.ts
@@ -29,7 +29,7 @@
 // eslint-disable-next-line node/no-unsupported-features/es-builtins, no-undef
 export const _globalThis: typeof globalThis =
   typeof globalThis === 'object' ? globalThis :
-  typeof self === 'object' ? self :
-  typeof window === 'object' ? window :
-  typeof global === 'object' ? global :
+    typeof self === 'object' ? self :
+      typeof window === 'object' ? window :
+        typeof global === 'object' ? global :
   {} as typeof globalThis;
diff --git a/packages/opentelemetry-exporter-jaeger/package.json b/packages/opentelemetry-exporter-jaeger/package.json
index 35338937d3..89996f6ee7 100644
--- a/packages/opentelemetry-exporter-jaeger/package.json
+++ b/packages/opentelemetry-exporter-jaeger/package.json
@@ -55,7 +55,7 @@
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/packages/opentelemetry-exporter-zipkin/package.json b/packages/opentelemetry-exporter-zipkin/package.json
index a0c5da8880..3823760b53 100644
--- a/packages/opentelemetry-exporter-zipkin/package.json
+++ b/packages/opentelemetry-exporter-zipkin/package.json
@@ -81,7 +81,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/packages/opentelemetry-propagator-b3/package.json b/packages/opentelemetry-propagator-b3/package.json
index e65cecd0f7..4378881407 100644
--- a/packages/opentelemetry-propagator-b3/package.json
+++ b/packages/opentelemetry-propagator-b3/package.json
@@ -66,7 +66,7 @@
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   }
 }
diff --git a/packages/opentelemetry-propagator-jaeger/package.json b/packages/opentelemetry-propagator-jaeger/package.json
index 73b2fe84c5..d999c984d9 100644
--- a/packages/opentelemetry-propagator-jaeger/package.json
+++ b/packages/opentelemetry-propagator-jaeger/package.json
@@ -72,7 +72,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0"
   },
diff --git a/packages/opentelemetry-resources/package.json b/packages/opentelemetry-resources/package.json
index 7528fa097f..f728e93efc 100644
--- a/packages/opentelemetry-resources/package.json
+++ b/packages/opentelemetry-resources/package.json
@@ -77,7 +77,7 @@
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/packages/opentelemetry-resources/src/platform/browser/default-service-name.ts b/packages/opentelemetry-resources/src/platform/browser/default-service-name.ts
index eebfb121e7..0811da9cf6 100644
--- a/packages/opentelemetry-resources/src/platform/browser/default-service-name.ts
+++ b/packages/opentelemetry-resources/src/platform/browser/default-service-name.ts
@@ -15,5 +15,5 @@
  */
 
 export function defaultServiceName(): string {
-    return 'unknown_service';
+  return 'unknown_service';
 }
diff --git a/packages/opentelemetry-resources/src/platform/node/default-service-name.ts b/packages/opentelemetry-resources/src/platform/node/default-service-name.ts
index c1df6d22fb..8b3b1a3b54 100644
--- a/packages/opentelemetry-resources/src/platform/node/default-service-name.ts
+++ b/packages/opentelemetry-resources/src/platform/node/default-service-name.ts
@@ -15,5 +15,5 @@
  */
 
 export function defaultServiceName(): string {
-    return `unknown_service:${process.argv0}`;
+  return `unknown_service:${process.argv0}`;
 }
diff --git a/packages/opentelemetry-sdk-trace-base/package.json b/packages/opentelemetry-sdk-trace-base/package.json
index d7c760e83e..57486815d6 100644
--- a/packages/opentelemetry-sdk-trace-base/package.json
+++ b/packages/opentelemetry-sdk-trace-base/package.json
@@ -80,7 +80,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0"
   },
diff --git a/packages/opentelemetry-sdk-trace-base/src/export/ConsoleSpanExporter.ts b/packages/opentelemetry-sdk-trace-base/src/export/ConsoleSpanExporter.ts
index 60f803c5d0..57baa62d3a 100644
--- a/packages/opentelemetry-sdk-trace-base/src/export/ConsoleSpanExporter.ts
+++ b/packages/opentelemetry-sdk-trace-base/src/export/ConsoleSpanExporter.ts
@@ -65,6 +65,7 @@ export class ConsoleSpanExporter implements SpanExporter {
       attributes: span.attributes,
       status: span.status,
       events: span.events,
+      links: span.links
     };
   }
 
@@ -78,7 +79,7 @@ export class ConsoleSpanExporter implements SpanExporter {
     done?: (result: ExportResult) => void
   ): void {
     for (const span of spans) {
-      console.log(this._exportInfo(span));
+      console.dir(this._exportInfo(span), { depth: 3 });
     }
     if (done) {
       return done({ code: ExportResultCode.SUCCESS });
diff --git a/packages/opentelemetry-sdk-trace-base/test/common/Tracer.test.ts b/packages/opentelemetry-sdk-trace-base/test/common/Tracer.test.ts
index 7918bbc951..71453bb260 100644
--- a/packages/opentelemetry-sdk-trace-base/test/common/Tracer.test.ts
+++ b/packages/opentelemetry-sdk-trace-base/test/common/Tracer.test.ts
@@ -67,14 +67,14 @@ describe('Tracer', () => {
   }
 
   class DummySpanProcessor implements SpanProcessor {
-      forceFlush () {
-        return Promise.resolve();
-      }
-      onStart() {}
-      onEnd() {}
-      shutdown() {
-        return Promise.resolve();
-      }
+    forceFlush () {
+      return Promise.resolve();
+    }
+    onStart() {}
+    onEnd() {}
+    shutdown() {
+      return Promise.resolve();
+    }
   }
 
   beforeEach(() => {
diff --git a/packages/opentelemetry-sdk-trace-base/test/common/export/ConsoleSpanExporter.test.ts b/packages/opentelemetry-sdk-trace-base/test/common/export/ConsoleSpanExporter.test.ts
index 8e5e40adfb..0a66b13fc2 100644
--- a/packages/opentelemetry-sdk-trace-base/test/common/export/ConsoleSpanExporter.test.ts
+++ b/packages/opentelemetry-sdk-trace-base/test/common/export/ConsoleSpanExporter.test.ts
@@ -14,6 +14,10 @@
  * limitations under the License.
  */
 
+import {
+  SpanContext,
+  TraceFlags,
+} from '@opentelemetry/api';
 import { AlwaysOnSampler } from '@opentelemetry/core';
 import * as assert from 'assert';
 import * as sinon from 'sinon';
@@ -26,16 +30,16 @@ import {
 /* eslint-disable no-console */
 describe('ConsoleSpanExporter', () => {
   let consoleExporter: ConsoleSpanExporter;
-  let previousConsoleLog: any;
+  let previousConsoleDir: any;
 
   beforeEach(() => {
-    previousConsoleLog = console.log;
-    console.log = () => {};
+    previousConsoleDir = console.dir;
+    console.dir = () => {};
     consoleExporter = new ConsoleSpanExporter();
   });
 
   afterEach(() => {
-    console.log = previousConsoleLog;
+    console.dir = previousConsoleDir;
   });
 
   describe('.export()', () => {
@@ -46,14 +50,22 @@ describe('ConsoleSpanExporter', () => {
         });
         consoleExporter = new ConsoleSpanExporter();
 
-        const spyConsole = sinon.spy(console, 'log');
+        const spyConsole = sinon.spy(console, 'dir');
         const spyExport = sinon.spy(consoleExporter, 'export');
 
         basicTracerProvider.addSpanProcessor(
           new SimpleSpanProcessor(consoleExporter)
         );
 
-        const span = basicTracerProvider.getTracer('default').startSpan('foo');
+        const tracer = basicTracerProvider.getTracer('default');
+        const context: SpanContext = {
+          traceId: 'a3cda95b652f4a1592b449d5929fda1b',
+          spanId: '5e0c63257de34c92',
+          traceFlags: TraceFlags.SAMPLED,
+        };
+        const span = tracer.startSpan('foo', {
+          links: [ { context, attributes: { anAttr: 'aValue' } } ]
+        });
         span.addEvent('foobar');
         span.end();
 
@@ -70,6 +82,7 @@ describe('ConsoleSpanExporter', () => {
           'events',
           'id',
           'kind',
+          'links',
           'name',
           'parentId',
           'status',
@@ -80,7 +93,7 @@ describe('ConsoleSpanExporter', () => {
         assert.ok(firstSpan.name === 'foo');
         assert.ok(firstEvent.name === 'foobar');
         assert.ok(consoleSpan.id === firstSpan.spanContext().spanId);
-        assert.ok(keys === expectedKeys);
+        assert.ok(keys === expectedKeys, 'expectedKeys');
 
         assert.ok(spyExport.calledOnce);
       });
diff --git a/packages/opentelemetry-sdk-trace-node/package.json b/packages/opentelemetry-sdk-trace-node/package.json
index c6a053d7f9..cb06312053 100644
--- a/packages/opentelemetry-sdk-trace-node/package.json
+++ b/packages/opentelemetry-sdk-trace-node/package.json
@@ -57,7 +57,7 @@
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {
diff --git a/packages/opentelemetry-sdk-trace-web/package.json b/packages/opentelemetry-sdk-trace-web/package.json
index 467c0f7ccd..00e3cee96f 100644
--- a/packages/opentelemetry-sdk-trace-web/package.json
+++ b/packages/opentelemetry-sdk-trace-web/package.json
@@ -81,7 +81,7 @@
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
     "ts-loader": "8.3.0",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4",
     "webpack": "4.46.0",
     "webpack-cli": "4.9.1",
diff --git a/packages/opentelemetry-semantic-conventions/package.json b/packages/opentelemetry-semantic-conventions/package.json
index 315c67d343..df190a8b7d 100644
--- a/packages/opentelemetry-semantic-conventions/package.json
+++ b/packages/opentelemetry-semantic-conventions/package.json
@@ -13,8 +13,6 @@
     "clean": "tsc --build --clean tsconfig.all.json",
     "lint": "eslint . --ext .ts",
     "lint:fix": "eslint . --ext .ts --fix",
-    "test": "nyc ts-mocha -p tsconfig.json 'test/**/*.test.ts'",
-    "tdd": "npm run test -- --watch-extensions ts --watch",
     "version": "node ../../scripts/version-update.js",
     "watch": "tsc --build --watch tsconfig.all.json",
     "precompile": "lerna run version --scope $(npm pkg get name) --include-dependencies",
@@ -60,7 +58,7 @@
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "sinon": "12.0.1",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   }
 }
diff --git a/packages/opentelemetry-shim-opentracing/package.json b/packages/opentelemetry-shim-opentracing/package.json
index 91964a4eda..0e80137985 100644
--- a/packages/opentelemetry-shim-opentracing/package.json
+++ b/packages/opentelemetry-shim-opentracing/package.json
@@ -52,7 +52,7 @@
     "mocha": "7.2.0",
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
-    "ts-mocha": "8.0.0",
+    "ts-mocha": "9.0.2",
     "typescript": "4.4.4"
   },
   "peerDependencies": {