diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 0bd1b037..69e82f12 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.5.1"
+  ".": "2.6.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fbc9bd15..55f51500 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 2.6.0 (2026-07-09)
+
+#### Features
+
+* Ruby 3.2 minimum and Ruby 4.0 support ([#397](https://github.com/googleapis/ruby-spanner-activerecord/issues/397)) 
+
 ### 2.5.1 (2026-06-30)
 
 #### Bug Fixes
diff --git a/lib/activerecord_spanner_adapter/version.rb b/lib/activerecord_spanner_adapter/version.rb
index 15320bad..78c73480 100644
--- a/lib/activerecord_spanner_adapter/version.rb
+++ b/lib/activerecord_spanner_adapter/version.rb
@@ -5,5 +5,5 @@
 # https://opensource.org/licenses/MIT.
 
 module ActiveRecordSpannerAdapter
-  VERSION = "2.5.1".freeze
+  VERSION = "2.6.0".freeze
 end