diff --git a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.6.3/changelogs-arkui.md b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.6.3/changelogs-arkui.md
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+# ArkUI子系统ChangeLog
+修复问题：[Stack](../../../application-dev/reference/arkui-ts/ts-container-stack.md)设置alignContent，在子组件超出父组件的场景中，子组件未按照alignContent布局
+示例：
+```ts
+@Entry
+@Component
+struct StackExample {
+  build() {
+    Stack({alignContent:Alignment.TopEnd}){
+      Text('First child, show in bottom')
+        .width(200).height(200).backgroundColor(0xd2cab3).margin(10)
+    }.width(150).height(150).backgroundColor(Color.Pink).margin(100)
+  }
+}
+```
+修复前：子组件未能按照alignContent:Alignment.TopEnd布局
+![stack](figures/stack_before.jpg)
+
+修复后：子组件可以按照alignContent:Alignment.TopEnd布局
+![stack](figures/stack_after.jpg)
+
+
+**变更影响**
+
+1. 如果应用中有子组件大小大于父组件Stack的场景，需要应用进行适配。
+2. 应用之前可能采用的规避方案：给子组件设置Offset或者translate
+
+**适配指导**
+
+  去掉之前给子组件设置的Offset或者translate，使用alignContent实际布局方式进行布局。
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