chore(main): release google-ads-data_manager 0.4.0 (#34065)

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

Author: release-please[bot]

.release-please-manifest.json

@@ -3,7 +3,7 @@
   "google-ads-ad_manager+FILLER": "0.0.0",
   "google-ads-ad_manager-v1": "4.0.0",
   "google-ads-ad_manager-v1+FILLER": "0.0.0",
-  "google-ads-data_manager": "0.3.0",
+  "google-ads-data_manager": "0.4.0",
   "google-ads-data_manager+FILLER": "0.0.0",
   "google-ads-data_manager-v1": "0.5.0",
   "google-ads-data_manager-v1+FILLER": "0.0.0",

google-ads-data_manager/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+### 0.4.0 (2026-06-11)
+
+#### Features
+
+* update gapic-common dependency to 1.3 and document retry jitter ([#34037](https://github.com/googleapis/google-cloud-ruby/issues/34037)) 
+
 ### 0.3.0 (2026-03-19)
 
 #### Features

google-ads-data_manager/lib/google/ads/data_manager/version.rb

@@ -20,7 +20,7 @@
 module Google
   module Ads
     module DataManager
-      VERSION = "0.3.0"
+      VERSION = "0.4.0"
     end
   end
 end