diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d00ccc12eb30..728c785e2920 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -771,7 +771,7 @@
   "google-cloud-service_usage+FILLER": "0.0.0",
   "google-cloud-service_usage-v1": "1.5.1",
   "google-cloud-service_usage-v1+FILLER": "0.0.0",
-  "google-cloud-shell": "1.5.2",
+  "google-cloud-shell": "1.6.0",
   "google-cloud-shell+FILLER": "0.0.0",
   "google-cloud-shell-v1": "1.5.1",
   "google-cloud-shell-v1+FILLER": "0.0.0",
diff --git a/google-cloud-shell/CHANGELOG.md b/google-cloud-shell/CHANGELOG.md
index c695f065086e..e08650a6e587 100644
--- a/google-cloud-shell/CHANGELOG.md
+++ b/google-cloud-shell/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 1.6.0 (2026-03-19)
+
+#### Features
+
+* Upgrade dependencies for Ruby v4.0 and drop Ruby v3.1 support
+
 ### 1.5.2 (2025-09-12)
 
 #### Documentation
diff --git a/google-cloud-shell/lib/google/cloud/shell/version.rb b/google-cloud-shell/lib/google/cloud/shell/version.rb
index fdbb380a00a0..2b9a9e3c0d56 100644
--- a/google-cloud-shell/lib/google/cloud/shell/version.rb
+++ b/google-cloud-shell/lib/google/cloud/shell/version.rb
@@ -20,7 +20,7 @@
 module Google
   module Cloud
     module Shell
-      VERSION = "1.5.2"
+      VERSION = "1.6.0"
     end
   end
 end