Does upgrading Android application delete files from private data directory?

Question

Does upgrading Android application delete files from private data directory?

I have tested this by doing the following on a real device

1. From eclipse r

Answer 1

The following are the only instances I can think of where your app data is deleted:

1. The user chooses to clear your applications user data
2. You delete the data yourself via your application
3. Your application is uninstalled
4. A rooted user navigates to your data and deletes it manually
5. The entire phone is wiped