U7198 Update? 9r17-9R18

[01hdgt]

I have a 2year old predator. And Im quite sure that it has the update of 9r17.. What updates are on the current 9r18 that would be worth while? My truck is an 01 2500hd 6.0l 4x4 etc.. GMC.. Thanks for the help!!

[mrobers]

I'm wondering the same question and asked the same thing in my post yesterday.

What normally changes in these updates; also settings for earlier vehicles like my '02 Avalanche?

[smokestack]

I think the updates just mainly add more vehicles. Maybe a few changes to the tunes but not sure