Thunderbird 68.0 Released As A Big Update For The Mozilla Mail Client

[cen1]

and STILL no fix for bug 475886

[xorbe]

Let me guess, still can't configure all hot keys, and the view port selections are still limited.

[jacob]

Why not just use K-9?

Because certificate-based authentication in K9 has been broken for years and years and no one seems to care. Which makes K9 wholly unusable for my needs.

[NateHubbard]

And it’s still completely useless because I can’t minimize it to the systray meaning it wastes space on my taskbar. Sigh.

Use a different desktop.

[Mavman]

If only Kontact was available for windows...

[waxhead]

That sounds terrible and is typically indicative of bad software engineering. Are you being sarcastic?

I agree with these crazy version numbers, but rewriting something from scratch is very different from adding new features/major re-factoring.

Nope, I am not sarcastic.
New features belong in revision bump, major re-factoring is no less indicative of bad software engineering than writing it from scratch. Or at least putting bits and pieces of working code together in a new way.