diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ac817d0b40f3..5815c6a1fca1 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -579,7 +579,7 @@
   "google-cloud-network_management-v1+FILLER": "0.0.0",
   "google-cloud-network_security": "1.3.0",
   "google-cloud-network_security+FILLER": "0.0.0",
-  "google-cloud-network_security-v1beta1": "0.14.0",
+  "google-cloud-network_security-v1beta1": "0.15.0",
   "google-cloud-network_security-v1beta1+FILLER": "0.0.0",
   "google-cloud-network_services": "2.1.0",
   "google-cloud-network_services+FILLER": "0.0.0",
diff --git a/google-cloud-network_security-v1beta1/CHANGELOG.md b/google-cloud-network_security-v1beta1/CHANGELOG.md
index ec1025a4432a..699794adf73f 100644
--- a/google-cloud-network_security-v1beta1/CHANGELOG.md
+++ b/google-cloud-network_security-v1beta1/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 0.15.0 (2026-03-19)
+
+#### Features
+
+* Upgrade dependencies for Ruby v4.0 and drop Ruby v3.1 support
+
 ### 0.14.0 (2025-12-03)
 
 #### Features
diff --git a/google-cloud-network_security-v1beta1/lib/google/cloud/network_security/v1beta1/version.rb b/google-cloud-network_security-v1beta1/lib/google/cloud/network_security/v1beta1/version.rb
index f81234ea74e8..5ff763ce9735 100644
--- a/google-cloud-network_security-v1beta1/lib/google/cloud/network_security/v1beta1/version.rb
+++ b/google-cloud-network_security-v1beta1/lib/google/cloud/network_security/v1beta1/version.rb
@@ -21,7 +21,7 @@ module Google
   module Cloud
     module NetworkSecurity
       module V1beta1
-        VERSION = "0.14.0"
+        VERSION = "0.15.0"
       end
     end
   end
diff --git a/google-cloud-network_security-v1beta1/snippets/snippet_metadata_google.cloud.networksecurity.v1beta1.json b/google-cloud-network_security-v1beta1/snippets/snippet_metadata_google.cloud.networksecurity.v1beta1.json
index f699c2e02ede..c42e44d1b362 100644
--- a/google-cloud-network_security-v1beta1/snippets/snippet_metadata_google.cloud.networksecurity.v1beta1.json
+++ b/google-cloud-network_security-v1beta1/snippets/snippet_metadata_google.cloud.networksecurity.v1beta1.json
@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-network_security-v1beta1",
-    "version": "0.14.0",
+    "version": "0.15.0",
     "language": "RUBY",
     "apis": [
       {