Samsung Epic 4G :: Mandatory Update Now Avaliable - Voicemail

well at 4:16 pm EST 11-27 I got this message that tells me there is a "mandatory update"

I dont want to do it simply because it says "mandatory" where do they get off telling me that some update is mandatory and not even supply a change log or anything telling me what it is

I need to know what this is before I update in case it makes something suck or breaks something - this is why I hacked my Palm Pre because the webos updates screwed up something and I had to root it and edit some file to prevent the updates from happening, Palm didnt give you an choice, after a couple of times it would apply it anyways even if you didnt want it, I dont want this to happen here so do I have to root my epic just to prevent things like this?

I use google voice voicemail anyways so why do I even get this message