update Flutter release notes

markdown/RTC 4.x/release-notes/en-US/framework/release_flutter_ng.md

@@ -1,6 +1,10 @@
 ## Known issues and limitations
 
-Due to the change in screen sharing behavior in Android 14 system, if you switch between landscape and portrait modes during screen sharing using a device with this version, the current screen sharing process will be interrupted, and a popup will appear on the device asking if you want to start screen recording. Once confirmed, you can resume screen sharing.
+Due to changes in the screen sharing behavior of Android 14 system, using devices with this version for screen sharing may encounter the following issues:
+
+- Switching between landscape and portrait mode during screen sharing can interrupt the current screen sharing process and a window will pop up asking if you want to start recording the screen. Once confirmed, screen sharing can be restarted.
+
+- When integrating the SDK, setting the Android `targetSdkVersion` to 34 may cause the screen sharing feature to be unavailable or even cause the application to crash.
 
 ## v6.2.3