diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 4450e51..08f9ef4 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  "google-cloud-spanner": "2.29.0"
+  "google-cloud-spanner": "2.30.0"
 }
diff --git a/google-cloud-spanner/CHANGELOG.md b/google-cloud-spanner/CHANGELOG.md
index 8f67ea5..dc6916a 100644
--- a/google-cloud-spanner/CHANGELOG.md
+++ b/google-cloud-spanner/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Release History
 
+### 2.30.0 (2025-11-17)
+
+#### Features
+
+* implement support for Multiplexed Sessions ([#195](https://github.com/googleapis/ruby-spanner/issues/195)) 
+
 ### 2.29.0 (2025-11-06)
 
 #### Features
diff --git a/google-cloud-spanner/lib/google/cloud/spanner/version.rb b/google-cloud-spanner/lib/google/cloud/spanner/version.rb
index d5969ef..07121ab 100644
--- a/google-cloud-spanner/lib/google/cloud/spanner/version.rb
+++ b/google-cloud-spanner/lib/google/cloud/spanner/version.rb
@@ -16,7 +16,7 @@
 module Google
   module Cloud
     module Spanner
-      VERSION = "2.29.0".freeze
+      VERSION = "2.30.0".freeze
     end
   end
 end