diff --git a/CHANGELOG.md b/CHANGELOG.md
index 756aba7..a7802de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,13 @@ All notable changes to **NoJS Elements** will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased](https://github.com/no-js-dev/nojs-elements/compare/v1.20.2...HEAD)
+## [Unreleased](https://github.com/no-js-dev/nojs-elements/compare/v1.21.0...HEAD)
+
+## [1.21.0](https://github.com/no-js-dev/nojs-elements/compare/v1.20.2...v1.21.0) — 2026-08-13
+
+### Changed
+
+- Version sync with ecosystem release v1.21.0 (NoJS Core ADR-024 compiler support surface)
 
 ## [1.20.2](https://github.com/no-js-dev/nojs-elements/compare/v1.20.1...v1.20.2) — 2026-08-05
 
diff --git a/dist/cjs/nojs-elements.js b/dist/cjs/nojs-elements.js
index f018d44..61e968c 100644
--- a/dist/cjs/nojs-elements.js
+++ b/dist/cjs/nojs-elements.js
@@ -1,5 +1,5 @@
 /**
- * NoJS Elements v1.20.2 — Element plugins for No.JS
+ * NoJS Elements v1.21.0 — Element plugins for No.JS
  * Drag-and-drop, and more.
  * @author exs.dev
  * @homepage https://elements.no-js.dev/
diff --git a/dist/esm/nojs-elements.js b/dist/esm/nojs-elements.js
index 846bde9..b3b1a55 100644
--- a/dist/esm/nojs-elements.js
+++ b/dist/esm/nojs-elements.js
@@ -1,5 +1,5 @@
 /**
- * NoJS Elements v1.20.2 — Element plugins for No.JS
+ * NoJS Elements v1.21.0 — Element plugins for No.JS
  * Drag-and-drop, and more.
  * @author exs.dev
  * @homepage https://elements.no-js.dev/
diff --git a/dist/iife/nojs-elements.js b/dist/iife/nojs-elements.js
index dc12dcb..a261ee3 100644
--- a/dist/iife/nojs-elements.js
+++ b/dist/iife/nojs-elements.js
@@ -1,5 +1,5 @@
 /**
- * NoJS Elements v1.20.2 — Element plugins for No.JS
+ * NoJS Elements v1.21.0 — Element plugins for No.JS
  * Drag-and-drop, and more.
  * @author exs.dev
  * @homepage https://elements.no-js.dev/
diff --git a/package.json b/package.json
index c0c3fc5..ead24d2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@no-js-dev/nojs-elements",
-  "version": "1.20.2",
+  "version": "1.21.0",
   "description": "Element plugins for No.JS — drag-and-drop, validation, and more",
   "main": "dist/cjs/nojs-elements.js",
   "module": "dist/esm/nojs-elements.js",