title: What do you call a modification that is made on a Environment that is not DEV?
body: <p>In application life-cycle management, it's common to have some environments. For example:</p>
  
  <p>DEV -> Staging -> Production</p>
  
  <p>Normally, you would develop in the DEV environment and stage your developments to Staging and Production.</p>
  
  <p>But it's possible to directly modify the PRD environment (to quickly fix a bug, for instance). 
  How do you call this procedure (the modification of your code in an environment that is not the DEV environment)?</p>
  
  <p><strong>I thought it was called "hotfix" but I see no related search results in Google.</strong></p>