MarsSeed [1] filed a deletion request for modloader64-gui-bin [2]: Unused, long dead hybrid -git and -bin package; flagged for beingbbroken since 2021.
It seems there are no higher release versions available from upstream. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/modloader64-gui-bin/
