diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 878f12e33425..af3550326d4c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,5 +1,5 @@
 {
-  "google-ads-ad_manager": "4.1.0",
+  "google-ads-ad_manager": "4.2.0",
   "google-ads-ad_manager+FILLER": "0.0.0",
   "google-ads-ad_manager-v1": "4.1.0",
   "google-ads-ad_manager-v1+FILLER": "0.0.0",
diff --git a/google-ads-ad_manager/CHANGELOG.md b/google-ads-ad_manager/CHANGELOG.md
index c78666c76a80..6b435af89450 100644
--- a/google-ads-ad_manager/CHANGELOG.md
+++ b/google-ads-ad_manager/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 4.2.0 (2026-07-20)
+
+#### Features
+
+* Added AdSpotService ([#34852](https://github.com/googleapis/google-cloud-ruby/issues/34852)) 
+
 ### 4.1.0 (2026-06-11)
 
 #### Features
diff --git a/google-ads-ad_manager/lib/google/ads/ad_manager/version.rb b/google-ads-ad_manager/lib/google/ads/ad_manager/version.rb
index 28676c4f2e86..0ecf6e6cb416 100644
--- a/google-ads-ad_manager/lib/google/ads/ad_manager/version.rb
+++ b/google-ads-ad_manager/lib/google/ads/ad_manager/version.rb
@@ -20,7 +20,7 @@
 module Google
   module Ads
     module AdManager
-      VERSION = "4.1.0"
+      VERSION = "4.2.0"
     end
   end
 end