Update docs (20801)

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/release-notes/changelogs/OpenHarmony_4.0.8.5/changelogs-arkui.md

 # ArkUI Subsystem Changelog
 
-## cl.arkui.1 Change in the Priority of alignContent and align Attributes for \<Stack>
+## cl.arkui.1 Change in the Priority of alignContent and align Attributes for the \<Stack> Component
 
 Changed the priority of **alignContent** and **align** as follows:
 
@@ -11,7 +11,6 @@ API version 10 and later: The last set attribute prevails.
 When two attributes provide the same functions, the last set attribute takes effect. This rule applies to **alignContent** and **align**, both of which set the alignment mode when used for the **\<Stack>** component.
 
 **Example**
-
 ```ts
 // xxx.ets
 @Entry
@@ -41,3 +40,49 @@ API version 10 and later: Child components are arranged based on the **alignCont
 **Change Impact**
 
 When both **alignContent** and **align** attributes are set, the last set attribute prevails.
+
+## cl.arkui.2 Behavior Change of the fillText and strokeText APIs of the \<Canvas> Component
+
+
+When the **fillText** and **strokeText** APIs are used to draw text, no text wrapping occurs.
+
+**Example**
+```ts
+// xxx.ets
+@Entry
+@Component
+struct FillText {
+  private settings: RenderingContextSettings = new RenderingContextSettings(true)
+  private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
+
+  build() {
+    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
+      Canvas(this.context)
+        .width('100%')
+        .height('100%')
+        .backgroundColor('#ffff00')
+        .onReady(() =>{
+          this.context.font = '50px sans-serif'
+          this.context.fillText("Hello World!", 0, 100)
+          this.context.fillText("Hello World! This is a long string to fully show", 0, 150)
+          this.context.strokeText("Hello World!", 0, 250)
+          this.context.strokeText("Hello World! This is a long string to fully show", 0, 300)
+        })
+    }
+    .width('100%')
+    .height('100%')
+  }
+}
+```
+
+API version 9 and earlier: When the **fillText** and **strokeText** APIs are used to draw text, the text is wrapped based on the component width.
+
+![stack](figures/api9filltext.jpeg)
+
+API version 10 and later: When the **fillText** and **strokeText** APIs are used to draw text, no text wrapping occurs.
+
+![stack](figures/api10filltext.jpeg)
+
+**Change Impact**
+
+The text appearance is affected now that the text is not wrapped based on the component width.