diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 4f3266ddde91..4c384fefe9a6 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -315,7 +315,7 @@
   "google-cloud-discovery_engine+FILLER": "0.0.0",
   "google-cloud-discovery_engine-v1": "1.3.0",
   "google-cloud-discovery_engine-v1+FILLER": "0.0.0",
-  "google-cloud-discovery_engine-v1beta": "0.15.0",
+  "google-cloud-discovery_engine-v1beta": "0.16.0",
   "google-cloud-discovery_engine-v1beta+FILLER": "0.0.0",
   "google-cloud-dlp": "1.6.2",
   "google-cloud-dlp+FILLER": "0.0.0",
diff --git a/google-cloud-discovery_engine-v1beta/CHANGELOG.md b/google-cloud-discovery_engine-v1beta/CHANGELOG.md
index 9c7392b69ad6..9b9983d30882 100644
--- a/google-cloud-discovery_engine-v1beta/CHANGELOG.md
+++ b/google-cloud-discovery_engine-v1beta/CHANGELOG.md
@@ -1,5 +1,26 @@
 # Changelog
 
+### 0.16.0 (2024-11-07)
+
+#### Features
+
+* Add AdvancedCompleteQuery API 
+* Add BillingEstimation in data store 
+* Add GroundedGenerationService API ([#27537](https://github.com/googleapis/google-cloud-ruby/issues/27537)) 
+* Add lite search API to allow public website search with API key 
+* Add one_box_page_size on search 
+* Add Sitemap APIs to preview channel 
+* Support advanced boost search 
+* Support Google Workspace search 
+* Support natural language understanding search 
+* support query regex in control match rules 
+* Support search personalization to preview channel 
+#### Documentation
+
+* deprecate asynchronous mode in answer generation 
+* deprecate extractive_answers in answer generation 
+* keep the API doc up-to-date with recent changes 
+
 ### 0.15.0 (2024-09-11)
 
 #### Features
diff --git a/google-cloud-discovery_engine-v1beta/lib/google/cloud/discovery_engine/v1beta/version.rb b/google-cloud-discovery_engine-v1beta/lib/google/cloud/discovery_engine/v1beta/version.rb
index 16dfcf6c5290..55c227787887 100644
--- a/google-cloud-discovery_engine-v1beta/lib/google/cloud/discovery_engine/v1beta/version.rb
+++ b/google-cloud-discovery_engine-v1beta/lib/google/cloud/discovery_engine/v1beta/version.rb
@@ -21,7 +21,7 @@ module Google
   module Cloud
     module DiscoveryEngine
       module V1beta
-        VERSION = "0.15.0"
+        VERSION = "0.16.0"
       end
     end
   end
diff --git a/google-cloud-discovery_engine-v1beta/snippets/snippet_metadata_google.cloud.discoveryengine.v1beta.json b/google-cloud-discovery_engine-v1beta/snippets/snippet_metadata_google.cloud.discoveryengine.v1beta.json
index c10082b51300..be13362d05b0 100644
--- a/google-cloud-discovery_engine-v1beta/snippets/snippet_metadata_google.cloud.discoveryengine.v1beta.json
+++ b/google-cloud-discovery_engine-v1beta/snippets/snippet_metadata_google.cloud.discoveryengine.v1beta.json
@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-discovery_engine-v1beta",
-    "version": "0.15.0",
+    "version": "0.16.0",
     "language": "RUBY",
     "apis": [
       {