Official Gmail Blog: A small (but helpful) change to 'mark as unread' - http://gmailblog.blogspot.com/2009...
        
        
          Mar 17, 2009
          
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              One of my favorite changes. When you read a conversation and mark as unread, it only marks as unread the messages that were unread when you opened it.
               - Keith Coleman
            
          
        
          
            
              NICE!!!
               - Kevin Fox
            
          
        
          
            
              OMG! I've been waiting for this.  I'm very happy.  This has been one of my (very few) GMail annoyances.
               - Cyrus Lendvay