Takes < 25 seconds on EC2 env [even on a low-end config instance].

VERSION=2.7 sudo yum -y remove tmux sudo yum -y install wget tar libevent-devel ncurses-devel wget https://github.com/tmux/tmux/releases/download/${VERSION}/tmux-${VERSION}.tar.gz tar xzf tmux-${VERSION}.tar.gz rm -f tmux-${VERSION}.tar.gz cd tmux-${VERSION} ./configure sudo make install cd - sudo rm -rf /usr/local/src/tmux-* sudo mv tmux-${VERSION} /usr/local/src

Logout and login to the shell again and run.

tmux -V