diff --git a/.scripts/copy-shared-files.mjs b/.scripts/copy-shared-files.mjs
index 4c976b15..2c584a65 100644
--- a/.scripts/copy-shared-files.mjs
+++ b/.scripts/copy-shared-files.mjs
@@ -8,7 +8,7 @@ const ADDITIONAL_SAMPLES = [];
 const TSCONFIG_EXCLUDE = ['nextjs-ecommerce-oneclick', 'monorepo-folders', 'fetch-esm', 'production', 'hello-world-js'];
 const GITIGNORE_EXCLUDE = ['nextjs-ecommerce-oneclick', 'monorepo-folders', 'production', 'hello-world-js'];
 const ESLINTRC_EXCLUDE = ['nextjs-ecommerce-oneclick', 'monorepo-folders', 'fetch-esm', 'hello-world-js'];
-const ESLINTIGNORE_EXCLUDE = ['production', 'monorepo-folders', 'hello-world-js'];
+const ESLINTIGNORE_EXCLUDE = ['production', 'hello-world-js'];
 
 const POST_CREATE_EXCLUDE = [
   'timer-examples',
@@ -28,7 +28,7 @@ $.verbose = false;
 
 let [answer] = await question(
   `Running pre-commit hook.
-This will overwrite any changes made to config files in samples (like ${chalk.bold('hello-world/tsconfig.json')}).
+This will overwrite any changes made to most config files in samples (like ${chalk.bold('hello-world/tsconfig.json')}).
 Proceed? [Y/n] `
 );
 
diff --git a/.vscode/settings.json b/.vscode/settings.json
index f1f914bf..1aaff89b 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,11 @@
 {
-  "eslint.rules.customizations": [{ "rule": "*", "severity": "downgrade" }]
+  "eslint.rules.customizations": [
+    {
+      "rule": "*",
+      "severity": "downgrade"
+    }
+  ],
+  "cSpell.words": [
+    "heartbeating"
+  ]
 }
diff --git a/README.md b/README.md
index 70dd54ce..1b65c711 100644
--- a/README.md
+++ b/README.md
@@ -122,6 +122,8 @@ npm run lint
 ```sh
 shopt -s extglob
 for f in !(monorepo-folders)/package.json; do jq '.dependencies.temporalio = "NEW_VERSION_HERE"' $f | sponge $f; done
+jq '.devDependencies."@temporalio/client" = "NEW_VERSION_HERE"' package.json | sponge package.json;
+jq '.dependencies."@temporalio/interceptors-opentelemetry" = "NEW_VERSION_HERE"' interceptors-opentelemetry/package.json | sponge interceptors-opentelemetry/package.json;
 for f in monorepo-folders/packages/!(frontend-ui)/package.json; do jq '.dependencies.temporalio = "NEW_VERSION_HERE"' $f | sponge $f; done
 ```
 
diff --git a/activities-cancellation-heartbeating/package.json b/activities-cancellation-heartbeating/package.json
index 540eaba7..62678567 100644
--- a/activities-cancellation-heartbeating/package.json
+++ b/activities-cancellation-heartbeating/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/activities-dependency-injection/package.json b/activities-dependency-injection/package.json
index 0c455ddb..7ecaff77 100644
--- a/activities-dependency-injection/package.json
+++ b/activities-dependency-injection/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/activities-examples/package.json b/activities-examples/package.json
index 396b118b..3cbea50a 100644
--- a/activities-examples/package.json
+++ b/activities-examples/package.json
@@ -24,7 +24,7 @@
   "dependencies": {
     "axios": "0.21.1",
     "node-fetch": "2.x",
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/activities-sticky-queues/package.json b/activities-sticky-queues/package.json
index ebe4982c..7257cf33 100644
--- a/activities-sticky-queues/package.json
+++ b/activities-sticky-queues/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x",
+    "temporalio": "0.19.x",
     "uuid": "^8.3.2"
   },
   "devDependencies": {
diff --git a/child-workflows/package.json b/child-workflows/package.json
index 28646060..453c6999 100644
--- a/child-workflows/package.json
+++ b/child-workflows/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/continue-as-new/package.json b/continue-as-new/package.json
index 2f18013a..7362d60d 100644
--- a/continue-as-new/package.json
+++ b/continue-as-new/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/cron-workflows/package.json b/cron-workflows/package.json
index 05eea632..545ab915 100644
--- a/cron-workflows/package.json
+++ b/cron-workflows/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/dsl-interpreter/package.json b/dsl-interpreter/package.json
index a001ed0e..d0d781a6 100644
--- a/dsl-interpreter/package.json
+++ b/dsl-interpreter/package.json
@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "js-yaml": "^4.1.0",
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/expense/package.json b/expense/package.json
index c7951153..1b91b718 100644
--- a/expense/package.json
+++ b/expense/package.json
@@ -25,7 +25,7 @@
   "dependencies": {
     "axios": "0.21.1",
     "express": "~4.17.1",
-    "temporalio": "0.18.x",
+    "temporalio": "0.19.x",
     "uuid": "8.3.2"
   },
   "devDependencies": {
diff --git a/fetch-esm/package.json b/fetch-esm/package.json
index ca0e010c..73b9b517 100644
--- a/fetch-esm/package.json
+++ b/fetch-esm/package.json
@@ -21,7 +21,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/grpc-calls/package.json b/grpc-calls/package.json
index 3c24d31f..254d3ce5 100644
--- a/grpc-calls/package.json
+++ b/grpc-calls/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/grpc-calls/src/client.ts b/grpc-calls/src/client.ts
index 7f313ae2..a36ce936 100644
--- a/grpc-calls/src/client.ts
+++ b/grpc-calls/src/client.ts
@@ -1,5 +1,5 @@
 import { Connection } from '@temporalio/client';
-import { defaultDataConverter } from '@temporalio/common';
+import { defaultPayloadConverter, toPayloads } from '@temporalio/common';
 
 async function run() {
   const workflowId = 'wf-id-' + Math.floor(Math.random() * 1000);
@@ -19,9 +19,9 @@ async function run() {
     taskQueue: { name: 'grpc-calls' },
     workflowType: { name: 'example' },
     input: {
-      // the client passes every payload through Data Converter; with gRPC calls have to do it yourself
-      // import { defaultDataConverter } from '@temporalio/common';
-      payloads: await defaultDataConverter.toPayloads('Temporal'),
+      // WorkflowClient passes data through Data Converter to convert to Payloads; with gRPC calls have to do it yourself
+      // import { defaultPayloadConverter, toPayloads } from '@temporalio/common';
+      payloads: toPayloads(defaultPayloadConverter, 'Temporal'),
     },
   });
   // @@@SNIPEND
diff --git a/hello-world-js/package.json b/hello-world-js/package.json
index 534af81a..8d01dd36 100644
--- a/hello-world-js/package.json
+++ b/hello-world-js/package.json
@@ -15,7 +15,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "eslint": "^7.32.0",
diff --git a/hello-world-mtls/package.json b/hello-world-mtls/package.json
index 14446dda..9ef5d2c8 100644
--- a/hello-world-mtls/package.json
+++ b/hello-world-mtls/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/hello-world/package.json b/hello-world/package.json
index 6130eb3b..1916466c 100644
--- a/hello-world/package.json
+++ b/hello-world/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/instrumentation/package.json b/instrumentation/package.json
index b5610540..0bda6256 100644
--- a/instrumentation/package.json
+++ b/instrumentation/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x",
+    "temporalio": "0.19.x",
     "triple-beam": "^1.3.0",
     "winston": "^3.3.3"
   },
diff --git a/interceptors-opentelemetry/package.json b/interceptors-opentelemetry/package.json
index adb543e6..2a2e3a35 100644
--- a/interceptors-opentelemetry/package.json
+++ b/interceptors-opentelemetry/package.json
@@ -24,8 +24,8 @@
     "@opentelemetry/resources": "^1.0.0",
     "@opentelemetry/sdk-node": "^0.26.0",
     "@opentelemetry/sdk-trace-base": "^1.0.0",
-    "@temporalio/interceptors-opentelemetry": "0.18.x",
-    "temporalio": "0.18.x"
+    "@temporalio/interceptors-opentelemetry": "0.19.x",
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/logging-sinks/package.json b/logging-sinks/package.json
index dab729af..7735835f 100644
--- a/logging-sinks/package.json
+++ b/logging-sinks/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/monorepo-folders/.eslintignore b/monorepo-folders/.eslintignore
index d1ca100d..7bd99a41 100644
--- a/monorepo-folders/.eslintignore
+++ b/monorepo-folders/.eslintignore
@@ -1,4 +1,3 @@
 node_modules
 lib
-.eslintrc.js
-packages/*
\ No newline at end of file
+.eslintrc.js
\ No newline at end of file
diff --git a/monorepo-folders/.eslintrc.js b/monorepo-folders/.eslintrc.js
index bc8a9ab3..5f9a780e 100644
--- a/monorepo-folders/.eslintrc.js
+++ b/monorepo-folders/.eslintrc.js
@@ -3,7 +3,7 @@ module.exports = {
   parser: '@typescript-eslint/parser',
   ignorePatterns: ['**/package/*.js', '**/package/*.ts'],
   parserOptions: {
-    project: './tsconfig.json',
+    project: './packages/*/tsconfig.json',
     tsconfigRootDir: __dirname,
     include: ['packages/*'],
   },
diff --git a/monorepo-folders/package.json b/monorepo-folders/package.json
index 8db5cb10..1cc60e37 100644
--- a/monorepo-folders/package.json
+++ b/monorepo-folders/package.json
@@ -5,12 +5,13 @@
     "packages/*"
   ],
   "scripts": {
+    "start": "yarn build.workflows & concurrently --kill-others-on-fail -n 'frontend,api-server,worker' \"yarn frontend\"  \"yarn backend\" \"yarn worker\"",
     "backend": "yarn workspace backend-apis start",
+    "frontend": "yarn workspace frontend-ui start",
+    "worker": "yarn workspace temporal-worker start",
     "build": "yarn workspaces run build",
     "build.workflows": "yarn workspace temporal-workflows build.watch",
-    "frontend": "yarn workspace frontend-ui start",
-    "start": "yarn build.workflows & concurrently --kill-others-on-fail -n 'frontend,api-server,worker' \"yarn frontend\"  \"yarn backend\" \"yarn worker\"",
-    "worker": "yarn workspace temporal-worker start"
+    "lint": "yarn workspaces run lint"
   },
   "dependencies": {
     "concurrently": "^6.3.0"
diff --git a/monorepo-folders/packages/backend-apis/.eslintignore b/monorepo-folders/packages/backend-apis/.eslintignore
new file mode 100644
index 00000000..7951405f
--- /dev/null
+++ b/monorepo-folders/packages/backend-apis/.eslintignore
@@ -0,0 +1 @@
+lib
\ No newline at end of file
diff --git a/monorepo-folders/packages/backend-apis/package.json b/monorepo-folders/packages/backend-apis/package.json
index c5e9da64..dfe70c93 100644
--- a/monorepo-folders/packages/backend-apis/package.json
+++ b/monorepo-folders/packages/backend-apis/package.json
@@ -3,13 +3,14 @@
   "version": "0.0.0",
   "private": true,
   "scripts": {
-    "build": "tsc --build",
-    "start": "nodemon server.ts --watch . --watch ../temporal-workflows"
+    "start": "nodemon server.ts --watch . --watch ../temporal-workflows",
+    "lint": "eslint .",
+    "build": "tsc --build"
   },
   "dependencies": {
     "express": "~4.16.1",
     "temporal-workflows": "*",
-    "temporalio": "0.18.x",
+    "temporalio": "0.19.x",
     "ts-node": "^10.4.0"
   },
   "devDependencies": {
diff --git a/monorepo-folders/packages/frontend-ui/package.json b/monorepo-folders/packages/frontend-ui/package.json
index b45f1721..8e612b42 100644
--- a/monorepo-folders/packages/frontend-ui/package.json
+++ b/monorepo-folders/packages/frontend-ui/package.json
@@ -3,10 +3,11 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "build": "react-scripts build",
-    "eject": "react-scripts eject",
     "start": "react-scripts start",
-    "test": "react-scripts test"
+    "test": "react-scripts test",
+    "build": "react-scripts build",
+    "lint": "react-scripts build",
+    "eject": "react-scripts eject"
   },
   "browserslist": {
     "production": [
diff --git a/monorepo-folders/packages/temporal-worker/.eslintignore b/monorepo-folders/packages/temporal-worker/.eslintignore
new file mode 100644
index 00000000..7951405f
--- /dev/null
+++ b/monorepo-folders/packages/temporal-worker/.eslintignore
@@ -0,0 +1 @@
+lib
\ No newline at end of file
diff --git a/monorepo-folders/packages/temporal-worker/package.json b/monorepo-folders/packages/temporal-worker/package.json
index 9fb886f4..427b3485 100644
--- a/monorepo-folders/packages/temporal-worker/package.json
+++ b/monorepo-folders/packages/temporal-worker/package.json
@@ -3,12 +3,13 @@
   "version": "0.0.0",
   "private": true,
   "scripts": {
+    "start": "nodemon worker.ts --watch ./worker.ts --watch ../temporal-workflows",
     "build": "tsc --build",
-    "start": "nodemon worker.ts --watch ./worker.ts --watch ../temporal-workflows"
+    "lint": "eslint ."
   },
   "dependencies": {
     "temporal-workflows": "*",
-    "temporalio": "0.18.x",
+    "temporalio": "0.19.x",
     "ts-node": "^10.4.0"
   },
   "devDependencies": {
diff --git a/monorepo-folders/packages/temporal-worker/worker.ts b/monorepo-folders/packages/temporal-worker/worker.ts
index 09872e44..36ca2367 100644
--- a/monorepo-folders/packages/temporal-worker/worker.ts
+++ b/monorepo-folders/packages/temporal-worker/worker.ts
@@ -1,6 +1,5 @@
 import { Worker } from '@temporalio/worker';
 import * as activities from '../temporal-workflows/src/all-activities';
-import path from 'path';
 
 async function run() {
   // Step 1: Register Workflows and Activities with the Worker and connect to
@@ -8,7 +7,6 @@ async function run() {
   const worker = await Worker.create({
     workflowsPath: require.resolve('../temporal-workflows/lib/all-workflows.js'),
     activities,
-    nodeModulesPaths: [path.join(__dirname, '../../node_modules')],
     taskQueue: 'monorepo',
   });
   // Worker connects to localhost by default and uses console.error for logging.
diff --git a/monorepo-folders/packages/temporal-workflows/.eslintignore b/monorepo-folders/packages/temporal-workflows/.eslintignore
new file mode 100644
index 00000000..7951405f
--- /dev/null
+++ b/monorepo-folders/packages/temporal-workflows/.eslintignore
@@ -0,0 +1 @@
+lib
\ No newline at end of file
diff --git a/monorepo-folders/packages/temporal-workflows/package.json b/monorepo-folders/packages/temporal-workflows/package.json
index f833b050..2bdf4831 100644
--- a/monorepo-folders/packages/temporal-workflows/package.json
+++ b/monorepo-folders/packages/temporal-workflows/package.json
@@ -8,7 +8,7 @@
     "lint": "eslint ."
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/nextjs-ecommerce-oneclick/package.json b/nextjs-ecommerce-oneclick/package.json
index 717f9724..a38d0af5 100644
--- a/nextjs-ecommerce-oneclick/package.json
+++ b/nextjs-ecommerce-oneclick/package.json
@@ -22,7 +22,7 @@
     "react-dom": "^17.0.2",
     "react-toastify": "^8.0.3",
     "swr": "^1.0.1",
-    "temporalio": "0.18.x",
+    "temporalio": "0.19.x",
     "uuid": "^8.3.2"
   },
   "devDependencies": {
diff --git a/patching-api/package.json b/patching-api/package.json
index 69104132..2e2dd52e 100644
--- a/patching-api/package.json
+++ b/patching-api/package.json
@@ -23,7 +23,7 @@
     "axios": "0.21.1",
     "eslint": "7",
     "node-fetch": "2.x",
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/production/package.json b/production/package.json
index 485e19e0..0391bace 100644
--- a/production/package.json
+++ b/production/package.json
@@ -21,7 +21,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/query-subscriptions/package.json b/query-subscriptions/package.json
index d9b29d61..d401f722 100644
--- a/query-subscriptions/package.json
+++ b/query-subscriptions/package.json
@@ -22,7 +22,7 @@
   "dependencies": {
     "immer": "^9.0.6",
     "ioredis": "^4.28.0",
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/replay-history/package.json b/replay-history/package.json
index 269a5448..73ac40bd 100644
--- a/replay-history/package.json
+++ b/replay-history/package.json
@@ -21,7 +21,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/search-attributes/package.json b/search-attributes/package.json
index 44b51338..094d9262 100644
--- a/search-attributes/package.json
+++ b/search-attributes/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/signals-queries/package.json b/signals-queries/package.json
index c068ee1f..34849562 100644
--- a/signals-queries/package.json
+++ b/signals-queries/package.json
@@ -23,7 +23,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/timer-examples/package.json b/timer-examples/package.json
index ca376e56..a4f14b74 100644
--- a/timer-examples/package.json
+++ b/timer-examples/package.json
@@ -24,7 +24,7 @@
   "dependencies": {
     "dotenv": "^10.0.0",
     "mailgun-js": "^0.22.0",
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",
diff --git a/timer-progress/package.json b/timer-progress/package.json
index 4d72c012..590fd8f5 100644
--- a/timer-progress/package.json
+++ b/timer-progress/package.json
@@ -20,7 +20,7 @@
     ]
   },
   "dependencies": {
-    "temporalio": "0.18.x"
+    "temporalio": "0.19.x"
   },
   "devDependencies": {
     "@tsconfig/node16": "^1.0.0",