@RancidLunchmeat My app and online portal are behaving the same. The last time it updated my information online was 12/19/2021 and the last time it updated my mileage correctly in the app was probably a few weeks ago before the latest update. Online shows 2,974 miles where the app shows 3,087 miles and I am sitting at 3,330 actual. But to your point the app still functions as normal and I can unlock/lock/remote start and kill it as needed. The location services also work. I could care less about mileage, tire pressure and fuel level display. Ironically, 2,974 was the mileage at my last dealer visit when they manually updated to 17.89, but the date doesn't jive.
To your earlier question I am not aware of a UConnect software file that ends in .98. The more recent files released were 17.73, 17.89 and 17.99. As Saleen mentioned the update to 17.99 is over the air (cellular) and not via wi-fi. I have yet to figure out which updates they will push via wi-fi. I received my OTA update to 17.99 on the 12th when I was driving to lunch. No way to manually force an update unfortunately.