title: Upgrade JSF 2.2 to 2.3
body: <p>Is there any requirements to do upgrade from JSF 2.2 to 2.3, or should I only change version in pom.xml? I meet some issues with composite component in mojarra 2.2.13, this is why I'm wondering upgrading could be a solution</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>What I can guess from I read is that CDI is not mandatory using 2.3, is it true (I just want to be certain)? If it is, using last version of Mojarra (2.2.17), does it make sense to still use JSF 2.2 today?</p>