Upgrading Features in SharePoint 2010

At last, the ability to upgrade features!

Source: Upgrading Features in SharePoint 2010 - Jan Tielens' Bloggings

The most elegant way of using disposable SharePoint objects

void CombiningCallsBestPractice()
{ 
 using (SPSite siteCollection = new SPSite(SPContext.Current.Web.Url))    
 using (SPWeb web = siteCollection.OpenWeb())    
 {        
 
  //Perform operations on site.    
 
 }
 // SPWeb object web.Dispose() automatically called; SPSite object      
 // siteCollection.Dispose() automatically called.
}

Source : http://msdn.microsoft.com/en-us/library/aa973248(office.12).aspx