diff --git a/packages/google-cloud-dialogflow-cx/CHANGELOG.md b/packages/google-cloud-dialogflow-cx/CHANGELOG.md
index 51df28fdefb..a8616c53bbb 100644
--- a/packages/google-cloud-dialogflow-cx/CHANGELOG.md
+++ b/packages/google-cloud-dialogflow-cx/CHANGELOG.md
@@ -1,5 +1,28 @@
 # Changelog
 
+## [3.0.0](https://github.com/googleapis/nodejs-dialogflow-cx/compare/v2.15.0...v3.0.0) (2022-06-23)
+
+
+### ⚠ BREAKING CHANGES
+
+* update library to use Node 12 (#288)
+
+### Features
+
+* add Webhook samples ([#259](https://github.com/googleapis/nodejs-dialogflow-cx/issues/259)) ([709dc6d](https://github.com/googleapis/nodejs-dialogflow-cx/commit/709dc6d88d768a9b553187787e9fb3808be8d991))
+* added audio_export_settings ([#257](https://github.com/googleapis/nodejs-dialogflow-cx/issues/257)) ([39f1d1c](https://github.com/googleapis/nodejs-dialogflow-cx/commit/39f1d1ced3401e7cfa72f1448745d424837d42f2))
+* added data format specification for export agent ([361e7d9](https://github.com/googleapis/nodejs-dialogflow-cx/commit/361e7d9d1f596a6280f07a1ce20456195a943d7a))
+* added data format specification for export agent ([361e7d9](https://github.com/googleapis/nodejs-dialogflow-cx/commit/361e7d9d1f596a6280f07a1ce20456195a943d7a))
+* added page in TestConfig ([7adaf67](https://github.com/googleapis/nodejs-dialogflow-cx/commit/7adaf6735cbef19d38e1288fd40ea27cf595b20f))
+* added page in TestConfig ([#239](https://github.com/googleapis/nodejs-dialogflow-cx/issues/239)) ([283c389](https://github.com/googleapis/nodejs-dialogflow-cx/commit/283c389cc220b9f192f15822ef2d1e38f35d6103))
+* added support for locking an agent for changes ([361e7d9](https://github.com/googleapis/nodejs-dialogflow-cx/commit/361e7d9d1f596a6280f07a1ce20456195a943d7a))
+* added support for locking an agent for changes ([361e7d9](https://github.com/googleapis/nodejs-dialogflow-cx/commit/361e7d9d1f596a6280f07a1ce20456195a943d7a))
+
+
+### Build System
+
+* update library to use Node 12 ([#288](https://github.com/googleapis/nodejs-dialogflow-cx/issues/288)) ([9a72b32](https://github.com/googleapis/nodejs-dialogflow-cx/commit/9a72b3214b65c59ef6a34471dc93050bd61e846c))
+
 ## [2.15.0](https://github.com/googleapis/nodejs-dialogflow-cx/compare/v2.14.0...v2.15.0) (2022-01-19)
 
 
diff --git a/packages/google-cloud-dialogflow-cx/package.json b/packages/google-cloud-dialogflow-cx/package.json
index c5c97bcc7d8..757b36d8da2 100644
--- a/packages/google-cloud-dialogflow-cx/package.json
+++ b/packages/google-cloud-dialogflow-cx/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@google-cloud/dialogflow-cx",
-  "version": "2.15.0",
+  "version": "3.0.0",
   "description": "Cx client for Node.js",
   "repository": "googleapis/nodejs-dialogflow-cx",
   "license": "Apache-2.0",
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3/snippet_metadata.google.cloud.dialogflow.cx.v3.json b/packages/google-cloud-dialogflow-cx/samples/generated/v3/snippet_metadata.google.cloud.dialogflow.cx.v3.json
index a1b5e4bf44f..2ec60fe5ba3 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3/snippet_metadata.google.cloud.dialogflow.cx.v3.json
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3/snippet_metadata.google.cloud.dialogflow.cx.v3.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-cx",
-        "version": "2.15.0",
+        "version": "3.0.0",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json
index 9be71b8d037..74c056979e6 100644
--- a/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json
+++ b/packages/google-cloud-dialogflow-cx/samples/generated/v3beta1/snippet_metadata.google.cloud.dialogflow.cx.v3beta1.json
@@ -1,7 +1,7 @@
 {
     "clientLibrary": {
         "name": "nodejs-cx",
-        "version": "2.15.0",
+        "version": "3.0.0",
         "language": "TYPESCRIPT",
         "apis": [
             {
diff --git a/packages/google-cloud-dialogflow-cx/samples/package.json b/packages/google-cloud-dialogflow-cx/samples/package.json
index a3b2fcee110..c3ceee88340 100644
--- a/packages/google-cloud-dialogflow-cx/samples/package.json
+++ b/packages/google-cloud-dialogflow-cx/samples/package.json
@@ -13,7 +13,7 @@
     "test": "c8 mocha --timeout 600000 test/*.js"
   },
   "dependencies": {
-    "@google-cloud/dialogflow-cx": "^2.14.0",
+    "@google-cloud/dialogflow-cx": "^3.0.0",
     "uuid": "^8.3.1"
   },
   "devDependencies": {