I've requested API addition to Koschei after talking with @mizdebsk : https://github.com/fedora-infra/koschei/issues/327

Koji doesn't provide api way to do this.

It appears that only "real" builds are considered (i.e. not strach builds by Koschei).
I'm not so sure about this statement.

I have package "community-mysql", which is said to have (for F32)
The last successful build was a year ago
which points to the "community-mysql-8.0.19-2" build, but the latest RELEASED build (for F32) is "community-mysql-8.0.22-1" built no more than 3 months ago.

If it would point to last "real" build, it would be less buggy than that :)

I've requested API addition to Koschei after talking with @mizdebsk : https://github.com/fedora-infra/koschei/issues/327

The mentioned upstream issue has been closed and there is a pending downstream PR for oraculum.

It would be much more helpful to have the FTBFS info reflect build data from Koschei in the dashboard.

A note for migration: The proposed fix is in the issue_55 branch.

This issue has been migrated to Fedora Forge:
https://forge.fedoraproject.org/apps/packager_dashboard/issues/55

Please continue any further discussion there.