I currently have 2018 12.1 firmware. FYI. I have a 20 mile section of my commute where AP 2 has no speed limit data. AP1 does fine on this section since it can read signs. So I have been tracking AP2 on this section to see when we will get sign reading capability. I checked after the 2018.12.1 update and didn't notice any changes. Today, for the first time, AP2 has speed limit data for that 20 mile section. It is wrong, but it is there now where it wasn't before. My GPS is working normally, so I think I may have gotten a stealth map update or something. Anyone else notice new speed limit data?