I've recently started using Ubuntu for development work and noticed that after installing tmux from the Ubuntu software repositories (sudo apt-get install tmux) they currently only contain tmux version 1.8. Unfortunately, this wasn't functioning correctly with some settings in my ~/.tmux.conf file. Therefore I set out to compile the latest 2.0 release from source.

Turns out on my newly installed Ubuntu 14.04 was missing some dependencies:

sudo apt-get install libevent-dev ncurses-dev

Next I simply downloaded the tar, configured and then installed:

cd /usr/local/src
wget -O tmux-2.0.tar.gz https://github.com/tmux/tmux/releases/download/2.0/tmux-2.0.tar.gz
tar -xvf tmux-2.0.tar.gz
./configure && make
sudo make install

Hello tmux 2.0!