title: CMS versioning strategies for content
body: <p>I'm looking at building basic CMS functionality into our web product and am researching tips and design ideas for versioning content. I'm specifically looking for database schemas in use today.</p>
  
  <p>What are you using for content versioning? What patterns apply if you have different types of content that need versions stored? How is question versioning handled on Stack Overflow?</p>
  
  <p>Thanks</p>