title: Merging changes from base repository to a fork
body: <p>Let's say we have a base repository R and a fork F. Coders are still making changes in R and F needs to include these changes as they are being added.</p>
  
  <p>How do I tell hg to update F with the latest changes in R without losing the work I am doing on F?</p>
  
  <p>Using the diff tool is a heck of a time-consuming task and it is not helping me move forward.</p>
  
  <p>I am using TortoiseHG.</p>