10.6 - Apple and our customers place a high value on simple, refined, creative, well thought through interfaces. They take more work but are worth it. Apple sets a high bar. If your user interface is complex or less than very good, it may be rejected 10.6 Details
Your app includes an update button or alerts the user to update the app. To avoid user confusion, app version updates must utilize the iOS built-in update mechanism.
Weve attached screenshot(s) for your reference.
Please remove the update feature from your app. To distribute a new version of your app, upload the new app binary version into the same iTunes Connect record you created for the apps previous version. Updated versions keep the same Apple ID, iTunes Connect ID (SKU), and bundle ID as the original version, and are available free to customers who purchased a previous version.
To create new versions of your app, please see Replacing Your App with a New Version in the iTunes Connect Developer Guide.