Do I need to unstall the Logos App before updating on the Kindle Fire?

Before updating to 9.4 I uninstalled the Logos app on my Kindle Fire and then downloaded the latest update.  After doing so, I lost all my downloaded resources.  I didn't have too many, so downloading them again isn't that much of a problem. 

My question is:

Do I need to uninstall the Logos App before downloading future updates?  I thought I remember reading that this was needed for the Kindle Fire to work properly.  Is this still the case?

Thanks.

I got a Kindle Fire about a week or two ago. I installed the Logos app from the Kindle store. Yesterday I had a notice on my Kindle (a number with a circle in it at the top - just after my name). I tapped it and saw there was an update for the Logos app. It asked if I wanted to update. I did.

Wow. That was easy!

(I didn't check to see that everything I downloaded was still there -- but at least some of it was.)