What does AT&T carrier setting update 14.2 for iPhone entail?

What does AT&T carrier setting update 14.2 for iPhone entail?

While this doesn't answer your question, I hope you find it useful…

I have an unlocked AT&T model iPhone 5 with a Straight Talk sim. Today while I was out riding my bike I got a notice of the "Carrier Update" and All of my data immediately stopped working. I had edited the APN settings using the T-Mobile SIM card swap method, so when I got back home I ran through the steps again and now it's working again just fine.

However, what I'm curious about is if anyone else has taken note of the new APN settings that I saw and promptly deleted so that I could put the ones in found at unlockit.co.nz for Straight Talk? I didn't think to note them before I wiped them out because I was just annoyed that the update had disabled my data.