Use new version of zsh instead of Mac os default

Install zsh from Homebrew:

$ brew install zsh

Add zsh to default shell lists:

$ sudo vim /etc/shells
/bin/bash
/bin/csh
/bin/sh
/bin/tcsh
/bin/zsh
/usr/local/bin/zsh #new zsh that installed by homebrew

Change the shell for the current user:

$ chsh -s /usr/local/bin/zsh