update release date

tony-xlh · tony-xlh · commit 72ac2602e37b · 2026-04-20T16:16:43.000+08:00
diff --git a/releasenotes/index.md b/releasenotes/index.md
@@ -12,7 +12,7 @@ permalink: /releasenotes/index.html
 
 # Release Notes
 
-## 4.0 (04/10/2026)
+## 4.0 (04/21/2026)
 
 ### New Features
 
