I applied 4.4.9298 to my Mini after I already downloaded it for my KA1, but I just noticed on
https://wiki.mobileread.com/wiki/Kobo_Firmware_Releases that the Mini is specifically excluded in their notes for the last bunch of releases. Since I'm not having problems with my Mini, I'm wondering what bullet I dodged, or if it still has my Kobo's name on it.