title: Issues switching from jQuery 1.4.4 to 1.6.1
body: <p>Should there be any major issues to switch from jQuery 1.4.4 to jQuery 1.6.1?</p>
  
  <p>I just noticed that all of the sites on our system were using 1.4.4.</p>
  
  <p>So should i switch them all over to the newest one (1.6.1) or keep them as is, and if i do switch, what issues may I face?</p>