As the default Zsh on CentOS is usually a older version, many cool stuffs are not possible on this Zsh, like installing oh-my-zsh or using powerlevel10k cool prompt system, it's understandable if you'd like to have the latest Zsh on board.
Easy peasy !!

Note: Please remember to remove the "sudo" from the commands if you are already in "root" or sudo-er mode

  • Install the pre-requisites i.e. GCC and other related stuffs for building Zsh from source.
    $ sudo yum groupinstall "Development tools"
    $ gcc -v # Check if GCC is installed properly
    $ sudo yum install ncurses-devel

  • Download the latest source file of Zsh. Please update the link with the latest by checking this web-folder.
    $ cd /usr/local/src
    $ sudo curl -L https://www.zsh.org/pub/zsh-5.8.tar.xz -o zsh-5.8.tar.xz # update the link & filename if needed

  • Unzip the file, "dig in" to the folder, and build & install from the source.
    $ sudo tar -xf zsh-5.8.tar.xz
    $ cd zsh-5.8
    $ sudo ./configure && sudo make && sudo make install

  • Add Zsh to the login shells by adding '/usr/local/bin/zsh' on the last line of the config file, /etc/shells
    $ sudo -e /etc/shells
    $ sudo chsh kmonsoor # change it to your username

  • Update the system default symlink to the new Zsh version.
    $ sudo ln -sf /usr/local/bin/zsh /bin/zsh$ zsh --version

  • It's always a good habit clea up after doing stuffs.
    $ sudo make clean

voila