3 things which should not change after publish

3 Things which should not change after publish

1) Application package name could not be change after publish of an application. Changing an application package name will recognize the application as a new application. On device the application will not update and install as new application.

2) Application signature could not be change after publish of an application. Changing the signature will recognize a different author of the application and fail the update of the application on device.

3) The activity name specified by android: name should not change. Changing the name could lead surprise issues with application on device. For Example the shortcut of the application will not work. Activity name is a public property and other applications and linking are done with this name.