Source releases of mixxx are done on github with version pattern X.Y.Z. Manual "releases" are done here with version pattern X.Y: https://downloads.mixxx.org/manual/ The manual sources are hosted at https://github.com/mixxxdj/manual and haven't been formally released in a while (no release or tag), so I guess the manual's release is... manual. Anyway, when the mixxx source Z increases, the manuals may have been updated too. But the distfile keeps the same name, and the gentoo mirrored manuals are not updated. Maybe help upstream straighten all this? Reproducible: Always