 <p>For Ubuntu packages, it may not be the latest version for 2 reasons:</p> <ol> <li><strong>dependencies availability</strong>: the dependencies version required is not available in Ubuntu yet</li> <li><strong>stability</strong>: latest version may not be the most stable version, therefore the most stable version is picked by Ubuntu</li> </ol> <p>To manually update certain package to your desired version ( either upgrade / downgrade ), remove the version that comes along with Ubuntu, and download from developer. Follow the instructions to install the package. However, through this method, the package cannot update through <code>apt-get</code>.</p>