diff --git a/CHANGELOG.en.md b/CHANGELOG.en.md
index 11a335b..51eb68e 100644
--- a/CHANGELOG.en.md
+++ b/CHANGELOG.en.md
@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 [中文文档](CHANGELOG.md)
 
-## [v2.1.0] - 2025-10-05
+## [v2.1.0] - 2025-10-27
 
 **Focus**: Resizable/maximized window (EasyX reinforced by Win32), first-phase layout manager (HBox/VBox), early Tabs control. We also fixed black borders, maximize “ghosts”, flicker, and the issue where controls only appeared after interaction. Control-level **background snapshot/restore**, **single-line truncation**, and **tooltips** are now standardized.
 
@@ -204,4 +204,4 @@ First stable release
 ### Added
 - Initial project structure and core architecture
 - Control base class and basic event handling system
-- Basic examples and documentation setup
\ No newline at end of file
+- Basic examples and documentation setup