

In the long-run, however, getting an e-ink Kindle and using the Download & Transfer via USB option is a better bet - unless a Mac developer is motivated to figure out the new key. Note: De-DRM'ing ebooks from 1.25 & 1.26 is only possible on Kindle for Mac. I plan to experiment with Catalina if I can do so without compromising my Mac. However, it works on High Sierra and Mojave.

I say "should" because no one has tested it on Catalina yet (that I'm aware of). It's a little tricky, but in some - but not all - cases it should also be possible to get the key to successfully remove DRM. Kindle for Mac 1.25 & 1.26 are 64-bit and should run on Catalina. Will any later version of Kindle app allow Calibre to remove DRM? Kindle 1.17.1 will no longer work on Mac when next version of MaC OS is released this fall. I am using Kindle v1.17.1 and current version of Calibre will remove drm and give me an epub format.
