I updated the version database. We now have entries for "gpg4win", "gpd", and "vsd"

Yes, for GPD and VSD there probably should be version numbers in swdb.lst if the update check should actually be active in those distributions. I think for VSD the update check is usually deactivated because a) it accesses the public internet which some customers don't want and b) the software is usually not installed by the users themselves so that the update check doesn't make much sense.

So, what shall we do with vanilla kleopatra, or GPD or VSD? It will be easy to record current versions number in swdb.lst

Tagging with Windows because the update check is a NOP except on Windows.

In T7656#201529, @ikloecker wrote:

In T7656#201519, @TobiasFella wrote:

Do I understand correctly that this bug is then automatically done/fixed?

It depends on how the version comparison works. We may have to change the code to extract the version number (e.g. 5.0.0) from the version string.

I forgot to mention that gpgrt has an API to compare version numbers in the same way gpgconf and all gnupg components do it; this should be somewhat similar to sort -V

BTW, if you append a beta string the thing works as well. Thus with an development version for 4.4.2 we would get a 'newer' state:

The version file is locally cached and updated from time to time unless that feature is disabled.
An update can be forced using

By the way, Kleopatra uses GpgME::SwdbResult::query() which I expect to do what you propose.

First, gpgconf doesn't help with parsing a version string like gpg4win-5.0.0-beta190 which is what I was talking about. Once we have extracted "gpg4win" and "5.0.0" we could use gpgconf. ...if it worked as documented in the man page. I don't understand this:

$ gpgconf --query-swdb gpg4win 4.3.0
gpg4win:4.3.0:-::32849:::::::

This is all done by gpgconf like here:

This one made me curious because updating the should be UI solved, and it is incredibly dangerous to mess with that. It is super easy to get random crashes when you invalidate the UI too much. It took me ages to get that "stable enough". But also technically an appointment request is a mail. And thanks to dan (afair), KMail can sign and encrypt invitations. And at least for signed invitations they are displayed as appointment so I looked into this a bit out of curiousity.

Just as a reminder, knowledge transfer, because this is easily overlooked in testing but at least one customer would have gotten very annoyed if we had ever deployed an "Update all certificates" function which "added" new certificates. Even with the update of a single cert, we had a "funny" issue, like if you had expired certificates from anywhere and not from WKD (which old keyrings have a lot, maybe with many uids). Suddenly an update would pull in new keys which come from WKD but maybe there they all only have one UID. Because for keyservers the identifier was the fingerprint and for WKD the identifier was the userid.
Or even worse, you explicitly threw out the OpenPGP keys from WKD because you wanted to use only S/MIME, then such a function may not search on any OpenPGP Sources.
When I worked at Kleopatra we didn't want such a feature in GnuPG. Our strategy was to update keys when they are used, about to be used or close to expiry. The whole locate-external-key thing.
I think the feature we had to update in the certificate details is good. But i recommend especially keeping the S/MIME / OpenPGP difference in mind. I would also call it "Search updated certificates" with a tooltip that it might also find "new" certificates for the user. And then an option to disable this either for S/MIME or for OpenPGP.

In T7656#201519, @TobiasFella wrote:

Do I understand correctly that this bug is then automatically done/fixed?

Yes. If gpgconf could read that version directly from kleopatra it would be even better. Bit in cases of early crashes this might be sub-optimal; thus I will tell gpgconf to get some additional version info from an installed versioninfo.txt file (which gpg4win creates). Thanks.

Is this what you had in mind @werner:

Note: The Kleopatra in upcoming versions of Gpg4win 5 will have AboutData::version set to gpg4win-5.0.0 (or gpg4win-5.0.0-beta190 for beta versions). See T7666: Kleopatra: Rework versioning.

Note: The Kleopatra in upcoming versions of Gpg4win 5 will have AboutData::version set to gpg4win-5.0.0 (or gpg4win-5.0.0-beta190 for beta versions). See T7666: Kleopatra: Rework versioning.

Tools / Refresh OpenPGP certificates runs gpg --refresh-keys. I don't think that this command knows anything about WKD.

This should compare the gpg4win version number: