iPhone application prob after updating the app
<p>I have one application named A with version 1.0.</p>

<p>I have updated it with different features and database changes. The database and features are totally different from the older version.</p>

<p>Now, some of users are unable to run the application after updating the new version. They need to reInstall the new version.</p>

<p>Its not happening with all. Please suggest.</p>
