Install your favorite desktop IDE packages. Zsh is only the default shell on newly created user accounts, so any existing accounts you have on an upgraded Mac will still use Bash by default. We love Zsh, but the trusty old Bash shell is still included with macOS, and you can quickly switch back to Bash if you prefer.
Get the latest version If an app or webpage you want to use asks you to install Java software, you can download the current version of Java for OS X directly from Oracle's website. Download Java for OS X directly from Oracle.
