I didn't update the game, but I connected my laptop to the Internet today. Before there were only few fonts, now there are lots of them, so many I have to scroll to see them, that's amazing! I guess the game autodownloaded them or something. And they are all available. Of course I wanted to see them all, and once I clicked one of 14×14 fonts, the game freezed and crashed, saying in the crash log "Unsupported fullscreen mode (fonts filtered assuming no custom screen resolution)".
I'm sure it doesn't even count as a bug, because new fonts were meant for new versions, and Beta 10.1 is kinda outdated now, but then why did it download all those fonts? I think it wasn't supposed to. And why did it allow me to choose them all? I switched to windowed mode to test it, and the only available fonts are 12×12, others are grayed out. Strangely, even smaller ones, like 10×10, 8×8 and 4×4. But in true fullscreen or borderless modes the game allow me to choose any font, even ones that don't fit into my laptop's screen.
Edit: Actually, just checked it, smaller fonts are always blocked now. No matter the mode, true fullscreen, borderless or windowed, 10×10, 8×8 and 4×4 fonts are always gray now. I clearly remember I could activate them before, was wondering how to read text in 4×4...Now they are disabled for every mode.