Making some progress on understanding this:

I can find no difference between e.g. gpg4win-4.3.0 and 5.0-beta here:

• The window gets smaller when entering a password in both versions
• there is no whitespace between characters in the old version either

In the spirit of making the UI less cluttered, I'd be in favor of removing this line entirely.

As of KF6.112, the datepicker will indicate invalid dates and not allow selecting them. We should update to that version, once it's out, or patch in c3f643639164914238dd8f19f03ea49298408293 of kwidgetsaddons

I can't reproduce this. Was this with a fresh install or is it possible that there were existing column widths loaded from a state file?

Removed in https://invent.kde.org/pim/kleopatra/-/merge_requests/369

We don't have this exact action on windows, but the normal "Decrypt & Verify" action shows up for folders there (and doesn't work either).

With my initial suggestions, modified by:

I'd suggest removing:

The situation seems to be even more complicated: If I click "yes" or "no" in this dialog, I *do* get asked for all certificates that are being imported. If I click "Cancel", no more dialogs show up.

21f7ad563d9b was not backported to gnupg 2.2, so this can't be done yet

It's missing a check for the required gpg-2.2 version. I will add that

The component here is KDateComboBox and it desperately needs something like this. It should probably be colors signifying a "disabled" state for those dates

Thinking about this some more, i came up with some more ways of showing some nice-to-have information in the tooltips: