EDITED. In principle it was beta 1 for being the first of iOS 12.1.3 but finally they have named it beta 2.
After the official update of iOS 12.1.2 released for all users comes the primera iOS 12.1.3 developer beta. In this case it is a somewhat strange version since this same version had to have been released previously and not the final 12.1.2 version that is supposed to counteract the patent problem with Qualcomm and solve some of the eSIM.
Apart from this, what we have on the table today is a version that does not seem to add too many changes compared to the current version and rather what it does is confirm that everything is stable and works well. In short, a version that does not bring notable changes over what we have in iOS 12.1.2.
The versions advance but we see little news in them
This is something that Apple already warned us a few months ago when they warned us that they would focus on hardware news and stabilize the different OSs. In this case, the versions that we are seeing do not bring too many changes compared to the first versions of iOS 12, so the 70+ new emoji or group FaceTime calls are some of the most outstanding novelties.
In this new beta version, there are no important changes other than the typical bug fixes and solutions to the bugs detected in the previous version. Definitely changes not very visual for the user but important at the OS level. For now, the beta versions are only for developers, in a day or maybe hours it will be available to registered users in the public beta program.
I get that it is the second beta ... Beta 2
Edited the article
Thanks for commenting Miguel
Regards!