diff --git a/CHANGELOG.md b/CHANGELOG.md
index 946e9615..d6756ae8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 # Changelog
 
 Note: For changes to the API, see https://shopify.dev/changelog?filter=api
-## Unreleased
+## 16.0.0 (2025-12-10)
 - ⚠️ [Breaking] Minimum required Ruby version is now 3.2. Ruby 3.0 and 3.1 are no longer supported.
 - ⚠️ [Breaking] Removed `Session#serialize` and `Session.deserialize` methods due to security concerns (RCE vulnerability via `Oj.load`). These methods were not used internally by the library. If your application relies on session serialization, use `Session.new()` to reconstruct sessions from stored attributes instead.
 
diff --git a/Gemfile.lock b/Gemfile.lock
index ba5b4adc..2e58c3c3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    shopify_api (15.0.0)
+    shopify_api (16.0.0)
       activesupport
       concurrent-ruby
       hash_diff
diff --git a/lib/shopify_api/version.rb b/lib/shopify_api/version.rb
index 56b41758..4360ec45 100644
--- a/lib/shopify_api/version.rb
+++ b/lib/shopify_api/version.rb
@@ -2,5 +2,5 @@
 # frozen_string_literal: true
 
 module ShopifyAPI
-  VERSION = "15.0.0"
+  VERSION = "16.0.0"
 end