codyps [1] filed a deletion request for parallels-tools [2]:

This has been moved to parallels11-tools to make it obvious that it is tied to a version of the companion software. parallels12-tools was created to resolve the "out-of-date" flag from a user.

[1] https://aur.archlinux.org/account/codyps/ [2] https://aur.archlinux.org/pkgbase/parallels-tools/