angryBird [1] filed a deletion request for tmux1.8 [2]: Deprecated version of the tmux package at https://www.archlinux.org/packages/community/x86_64/tmux/ which is not maintained anymore and orphaned. [1] https://aur.archlinux.org/account/angryBird/ [2] https://aur.archlinux.org/pkgbase/tmux1.8/