They used to be hardcoded at either 72 or 96, now they use the physical devices DPI, so if you have a 300 PPI device, the font will look crisper. Kobo has also changed the way DPI works on their e-readers, in regards to EPUB books. In the past, if you connected Micro USB to USB-C, the Kobo would not be detected, this issue has now been solved for newer devices but Glo, Aura HD, Mini, Aura SD, and Aura H2O will still be unable to connect. The company has added support for the Apple M1 chip found on various MAC laptops and the Mac Mini. Kobo has just published a new firmware update for the vast majority of their e-readers.
