title: How do I update version of Fish Terminal? (Ubuntu)
body: <p>I am currently on <code>2.1.0</code> and would like to go to latest (<code>2.5.0</code> currently). Is there a command to do this? Or do I need to uninstall the current version and install a new one? Is this done through apt-get?</p>
  
  <p>Could not find this anywhere in documentation or elsewhere on the internet...</p>
  
  <p>I tried downloading the latest .deb file from the fish <a href="https://launchpad.net/~fish-shell/+archive/ubuntu/release-2/+packages" rel="noreferrer">download page</a>, but trying to open this in Ubuntu software centre yields "Breaks existing package 'fish'"</p>