diff --git a/CHANGELOG.md b/CHANGELOG.md
index 430401a9..a5cd4a76 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,37 @@
 
 [1]: https://www.npmjs.com/package/@google-cloud/logging-winston?activeTab=versions
 
+## [1.0.0](https://www.github.com/googleapis/nodejs-logging-winston/compare/v0.11.1...v1.0.0) (2019-05-18)
+
+
+### Bug Fixes
+
+* expose express middleware, add system-test ([#278](https://www.github.com/googleapis/nodejs-logging-winston/issues/278)) ([dc17ad7](https://www.github.com/googleapis/nodejs-logging-winston/commit/dc17ad7))
+* **deps:** update dependency google-auth-library to v4 ([#317](https://www.github.com/googleapis/nodejs-logging-winston/issues/317)) ([6182968](https://www.github.com/googleapis/nodejs-logging-winston/commit/6182968))
+* use immutable winston level ([#319](https://www.github.com/googleapis/nodejs-logging-winston/issues/319)) ([450295f](https://www.github.com/googleapis/nodejs-logging-winston/commit/450295f))
+
+
+### Build System
+
+* upgrade engines field to >=8.10.0 ([#308](https://www.github.com/googleapis/nodejs-logging-winston/issues/308)) ([c777689](https://www.github.com/googleapis/nodejs-logging-winston/commit/c777689))
+
+
+### Code Refactoring
+
+* only support winston3 ([#297](https://www.github.com/googleapis/nodejs-logging-winston/issues/297)) ([9d3911b](https://www.github.com/googleapis/nodejs-logging-winston/commit/9d3911b))
+
+
+### Miscellaneous Chores
+
+* drop node 6 support ([#307](https://www.github.com/googleapis/nodejs-logging-winston/issues/307)) ([08631b7](https://www.github.com/googleapis/nodejs-logging-winston/commit/08631b7))
+
+
+### BREAKING CHANGES
+
+* upgrade engines field to >=8.10.0 (#308)
+* Node 6 is no longer tested.
+* only support winston3 (#297)
+
 ## v0.11.1
 
 04-09-2019 17:34 PDT
@@ -200,4 +231,3 @@
 - chore: lock files maintenance ([#79](https://github.com/googleapis/nodejs-logging-winston/pull/79))
 - chore: test on node10 ([#77](https://github.com/googleapis/nodejs-logging-winston/pull/77))
 - chore: lock files maintenance ([#75](https://github.com/googleapis/nodejs-logging-winston/pull/75))
-
diff --git a/package.json b/package.json
index a6562456..4888c19b 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/logging-winston",
   "description": "Stackdriver Logging transport for Winston",
-  "version": "0.11.1",
+  "version": "1.0.0",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {
diff --git a/samples/package.json b/samples/package.json
index afa1172f..2b76fd06 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -14,7 +14,7 @@
     "test": "mocha system-test/*.js --timeout 600000"
   },
   "dependencies": {
-    "@google-cloud/logging-winston": "^0.11.1",
+    "@google-cloud/logging-winston": "^1.0.0",
     "winston": "^3.1.0"
   },
   "devDependencies": {