diff --git a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.5/changelogs-arkui.md b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.5/changelogs-arkui.md
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+# arkui子系统ChangeLog
+
+## cl.arkui.1 stack组件alignContent属性和通用属性align生效顺序。
+
+**说明**
+属性之间的处理原则：如果功能相同，属性按覆盖处理即后设置的生效。alignContent和align功能相同，都是子组件在stack容器组件的对齐方式。
+
+**示例：**
+```ts
+// xxx.ets
+@Entry
+@Component
+struct StackExample {
+  build() {
+    Stack({alignContent:Alignment.Start}){
+      Text("Stack's child").backgroundColor(Color.Brown).height("100").width(100)
+    }
+    .width(300).height(300)
+    .backgroundColor(Color.Pink)
+    .align(Alignment.Center)
+    .alignContent(Alignment.TopEnd)
+  }
+}
+```
+
+api9：子组件按照通用属性align布局
+
+![stack](figures/api9.png)
+
+
+api10及以后：子组件按照后设置的alignContent布局
+
+![stack](figures/api10_and_later.png)
+
+**变更影响**
+
+alignContent和align都设置时，api9版本及以前是align生效，api10及以后是后设置的生效。
diff --git a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.5/figures/api10_and_later.png b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.5/figures/api10_and_later.png
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