Eschwartz [1] filed a deletion request for capsimage4 [2]: From the "capsimage" pkgbase discussion:

Well, it's not really needed, I thought the way of foss: to have a choice. But you've convinced me. capsimage5 is compatible to v4 but with more features. What to do now: leave capsimage as it it and delete capsimage4 ?

Deleting this package seems reasonable, yes. [1] https://aur.archlinux.org/account/Eschwartz/ [2] https://aur.archlinux.org/pkgbase/capsimage4/