diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a0a57759..7b76ee029 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://www.npmjs.com/package/@google-cloud/pubsub?activeTab=versions
 
+## [4.2.0](https://github.com/googleapis/nodejs-pubsub/compare/v4.1.1...v4.2.0) (2024-01-31)
+
+
+### Features
+
+* Add enforce_in_transit fields and optional annotations ([#1873](https://github.com/googleapis/nodejs-pubsub/issues/1873)) ([09fc424](https://github.com/googleapis/nodejs-pubsub/commit/09fc4241c8782d2f60c1a78dda316628eca5f751))
+
 ## [4.1.1](https://github.com/googleapis/nodejs-pubsub/compare/v4.1.0...v4.1.1) (2024-01-05)
 
 
diff --git a/package.json b/package.json
index 4ad24e802..3d51b4e97 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/pubsub",
   "description": "Cloud Pub/Sub Client Library for Node.js",
-  "version": "4.1.1",
+  "version": "4.2.0",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {
diff --git a/samples/package.json b/samples/package.json
index 70065c0a5..d86430264 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -21,7 +21,7 @@
     "precompile": "npm run clean"
   },
   "dependencies": {
-    "@google-cloud/pubsub": "^4.1.1",
+    "@google-cloud/pubsub": "^4.2.0",
     "@opentelemetry/api": "^1.0.0",
     "@opentelemetry/tracing": "^0.24.0",
     "avro-js": "^1.10.1",