Are you talking about Uconnect software or the trucks firmware? Latest Uconnect for the 12" is 24.04.19 which you can find by pressing the outside buttons at the bottom of your screen and holding them.
You can check driveuconnect.com for your Uconnect software (next Update supposed to come in the spring)
Engine, emission and transmission updates as needed for issues in the form of recalls and TSB's.
It's been my experience with the Recall and TSB updates that if it ain't broke, don't fix it.