WhatsApp update seems to be the latest surprise for Android users. After being acquired by Facebook for the sum of $19 Billion, the application has received an update to a new version. WhatsApp has got a setting in which you can easily hide your last seen. You don't want to show when you come online and when you go offline . Sometime your privacy matter so for this reason we have to hide our last seen . its very simple just go in setting and follow the instruction.
Open WhatsApp on your Mobile device and go in Settings
Go to Account under Settings and then go in Privacy Section
Just Click Last Seen under Privacy Section
Select Nobody if you want to hide your Last Seen