title: How to update chef server 12 to chef 14
body: <p>StackOverflow seemed to have the most questions and answers on chef related stuff so here it goes. I have been looking around for a document on how to upgrade chef 12 to chef 14.</p>
  
  <p>We currently have a server running chef 12, I need to it be chef 14 and was hoping to accomplish this via knife if possible. I have only found people asking for upgrading to version 12 and older, nothing new like 14. </p>
  
  <p>What command or set of commands can I use to do this upgrade? There doesn't appear to be a chef owned doc that has the upgrade instructions from checking google.</p>