After a very long gestation period, Teledyne Flir is in the process of releasing a new Lepton module called the Lepton 3.1R.  It is functionally equivalent to the Lepton 3.5 (radiometric, 160x120 pixel, 8.7 FPS, 12 µm pixel size, f1.1 focal length and < 50 mK sensitivity) but with a wider field of view (95x119° vs 51x71°).  You should shortly be able to buy one from Group Gets among other places.

The module works fine with tCam-Mini with firmware > 3.0.  Today I just released a new firmware (version 3.2) which will correctly detect the model number and report back the type in the camera status information.  This means that the information screen in tCam and the Camera Information dialog box in the desktop app will correctly display the "Lepton 3.1" imager type and you can get the info via the python driver as well.

My website and github have been updated to point to the new firmware.  The automatic download functions in the Desktop application and the tCam Family Serial Updater program will fetch it too.