I’m not a long time K-9 user. I just started a couple of months ago. But like you, I’m used to being able to open my email app and see all of my accounts and how many new emails are in each. I think that’s VERY IMPORTANT!
While I do otherwise enjoy 5.8 (what I started with), I think the Dev should bring back that one thing. I mean it’s not like the entire app would have to be rewritten.
I’m thinking about trying the older version, but I am concerned that one of the features I need (that 5.8 has) won’t be in 5.7. The ability to open up a Sent email and edit it as if it’s a new email, then resend it. 99.9% of apps will do it as if you’re using Reply and so what you end up resending is your own reply to your own email, instructing the recipient to read what’s quoted below the Signature. How dumb is that?! And when I explain it to a Developer and ask them to make it an actual “Resend” feature instead of a “Reply to myself but send it to the original Recipient”, they either just don’t get it, don’t care, or insist it’s correct.
And so since I run my business from my phone and often need to resend the same email with maybe minor edits, or attachments added, or simply because I didn’t get a response. My point is that when I saw that it is done correctly in K-9, I was very happy about that!
But I don’t know if I can live without the accounts being shown. So I guess I’ll try 5.7 and see if it has both of these things.
As for development, I’m surprised the newer version didn’t just jump to 6.0 instead. That would have left room to still develop the older version. I work with developers and whenever they run into a situation where a lot of loyal users are clamoring for an older feature that’s now missing, I advise them to keep the old version going and just rename it and it’s worked quite well!
Like in this case, it could be “K-9 Mail Classic”. Heck, it can even start at v1.0 again and just make whatever tweaks are needed to keep it running in newer versions of Android, or to squash a bug and between the name and the occasional bug fix update, it’ll keep Google from calling it a dead app. And they could even charge $1.49 for it or something to make it worth their while to keep two K-9’s up. I’d gladly pay for it!
Anyway, that’s my 14.26547 cents worth.