WhatsApp is worth billions of dollars, and there seems to be a good reason for that: many of you are using it, at least according to the flood of tips we are now getting.
Today on the backend for WhatsApp they have evidently thrown a switch to make the double checks blue for when someone reads your messages. Previously, they were white, ahem.
Usually, we would pass on this news, but since around twenty of you have tipped us in the last 30-minutes, we figured it was worth a quick mention.
You do not need to update the app, as this is something that the WhatsApp team has done server side. So just enjoy the blue checks.
FROM; http://www.windowscentral.com/yes-whatsapp-now-has-blue-checks-read-messages