I've been made aware of
LanguageBreak and have used it to jailbreak a KOA2 on its latest firmware.
So far things have been smooth, but with how spread out and mixed info can be, I figured it would be worth registering to ask this:
Is there an ideal version to be on once jailbroken?
It seems like every few 5.XX something has been a
major change that
breaks most existing things, but it's very hard to tell if 5.16.2.1.1 is compatible with anything I'd reasonably run into now or if I should be on 5.15.X-5.9.X because of
some thing that just refuses to cooperate still.
The "Old UI" definitely exists as a factor (5.13.X?), but if I'm only ever opening KUAL or KOReader then I don't know how relevant the stock UI remains.
Probably overthinking this but might as well get the thought out there.