diff --git a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.9.5/changelogs-arkui.md b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.9.5/changelogs-arkui.md
index 793df76331639f4642d758edc75f30e6a3c99135..fca5a5cba5370726ad428af1cd714b6edf1ff544 100644
--- a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.9.5/changelogs-arkui.md
+++ b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.9.5/changelogs-arkui.md
@@ -70,4 +70,41 @@ API Version 9: Free模式显示位置
 
 API Version 10: Free模式显示位置与Full模式显示位置相同
 
-![Navigation](figures/navigation_title_mode_free_sdk10.png)
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+![Navigation](figures/navigation_title_mode_free_sdk10.png)
+## cl.arkui.3 字符串异常值默认变更
+
+**变更影响**
+
+包含数字的非法字符串不会解析为数字部分，而是视为非法值，按照规则设定为默认值
+
+**示例：**
+```ts
+@Entry
+@Component
+struct GridRowExample {
+  @State bgColors: Color[] = [Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Pink, Color.Grey, Color.Blue, Color.Brown]
+  @State currentBp: string = 'unknown'
+
+  build() {
+    Column() {
+      GridRow({
+        columns: 5,
+        gutter: { x: 5, y: 10 },
+        breakpoints: { value: ["400vp", "600vp", "800vp"],
+          reference: BreakpointsReference.WindowSize },
+        direction: GridRowDirection.Row
+      }) {
+        ForEach(this.bgColors, (color) => {
+          GridCol({ span: { xs: 1, sm: 2, md: 3, lg: 4 } }) {
+            Row().width("100%").height("20vp")
+          }.borderColor(color).borderWidth(2)
+        })
+      }.width("100%").height("100%")
+    }.width("80pv").margin({ left: 10, top: 5, bottom: 5 }).height(200)
+    .border({ color: '#880606', width: 2 })
+  }
+}
+
+API Version 9：上方示例中的GridRow设定width中的"80pv"会等同于width设定字符串"80"
+
+API Version 10: 上方示例中的GridRow的width中的"80pv"会被视为异常值，所以GridRow的width设定为默认值，相当于未设定
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