Where can the last version of Qubes R4.1.2 still be found?

General Discussion
2

This sound insane, but I just checked mirrors and 4.x version are there?

https://ftp.qubes-os.org/iso/

May I 2nd: What happened there? This looks weird to me.

Just for the record and example

https://archives.fedoraproject.org/pub/archive/fedora/linux/core/1/i386/iso/