Why oh why did someone change the backup naming ?
Backup from 2019-02-11-13:26.ipf Size 11.10 MB
Backup from 20190211-0109.ipf Size 15.33 MB
resulting in a out of order sorting ?

and also
Backup from ipfire-2.21.i586-full-core127-2019-02-11-13:26.iso Size 260.00 MB
Very bad idea because it was fine, and good / readable before!