Don - Buster runs on the 3 and the 4, but the 4 must have Buster.
Roger - You are correct.? Buster can be updated in the terminal window via the usual apt-get update/upgrade commands.? It's early times for Buster and the Pi-4, and there are lots of little fixes coming at a quick pace. Because I have a feeling that the majority of railroaders using Steve's image skew towards the non-technical end of the scale, I suggested that he update the Buster version in the image to avoid strange support problems.? ? For the non-technically inclined, just bringing up a terminal window is a big step, and watching hundreds of lines that will scroll by during the upgrade/update process is pretty scary.
gs
