diff --git a/CHANGELOG.md b/CHANGELOG.md
index b122ce280..1db914312 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,11 +27,15 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+---
+
+## [1.28.0] - 2026-09-21
+
 - Add `Region#iso_3166_code_assigned?` to distinguish currently assigned ISO 3166-1 alpha-2 codes from other region codes. [#598](https://github.com/Shopify/worldwide/pull/598)
-- Reject malformed currency codes before caching.
+- Reject malformed currency codes before caching. [#596](https://github.com/Shopify/worldwide/pull/596)
 - Add IE Eircode routing keys `N39` (Longford) and `N41` (Carrick-on-Shannon) to each other's `zips_crossing_provinces` entries, so both are valid for Longford and Leitrim. [#601](https://github.com/Shopify/worldwide/pull/601)
-- Avoid retaining unknown locale codes in the global locale cache.
-- Avoid excessive backtracking in Dutch address fallback parsing.
+- Avoid retaining unknown locale codes in the global locale cache. [#597](https://github.com/Shopify/worldwide/pull/597)
+- Avoid excessive backtracking in Dutch address fallback parsing. [#599](https://github.com/Shopify/worldwide/pull/599)
 
 ---
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 764f402db..9f4a89bb9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GIT
 PATH
   remote: .
   specs:
-    worldwide (1.27.0)
+    worldwide (1.28.0)
       activesupport (>= 7.0)
       i18n (>= 1.15)
       phonelib (~> 0.8)
diff --git a/lib/worldwide/version.rb b/lib/worldwide/version.rb
index b3ad6e701..2566a7515 100644
--- a/lib/worldwide/version.rb
+++ b/lib/worldwide/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Worldwide
-  VERSION = "1.27.0"
+  VERSION = "1.28.0"
 end