diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 179a5366..5677a32d 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.15.1"
+  ".": "1.16.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19f764f8..825f85a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Release History
 
+### 1.16.0 (2025-11-21)
+
+#### Features
+
+* Add ADC support for impersonated credentials ([#547](https://github.com/googleapis/google-auth-library-ruby/issues/547)) 
+#### Bug Fixes
+
+* Include security warning in ExternalAccount and ImpersonatedServiceAccount credentials ([#551](https://github.com/googleapis/google-auth-library-ruby/issues/551)) 
+
 ### 1.15.1 (2025-10-14)
 
 #### Bug Fixes
diff --git a/lib/googleauth/version.rb b/lib/googleauth/version.rb
index ef58fdc1..23454804 100644
--- a/lib/googleauth/version.rb
+++ b/lib/googleauth/version.rb
@@ -16,6 +16,6 @@ module Google
   # Module Auth provides classes that provide Google-specific authorization
   # used to access Google APIs.
   module Auth
-    VERSION = "1.15.1".freeze
+    VERSION = "1.16.0".freeze
   end
 end