gbs [1] filed a orphan request for quartus-free [2]: Package has been out of date for almost two years, new maintainer stated he would be taking over but did not touch the package at all. No response in comments for over two weeks now.
[1] https://aur.archlinux.org/account/gbs/ [2] https://aur.archlinux.org/pkgbase/quartus-free/
