There has been a buzz and excitement amongst people with whats app today. It is a wonder how a simple color can change the world.
So what happens when the grey ticks turns blue? It just means that the recipient has just read your message. And when it comes to group messages, the ticks turn blue when everyone in the group has read it.This is an OTA update that is sent silently to you. Therefore most users dont realize this change as they were not notified for any updates. However this update has not be rolled out to all users yet.
Some are excited to know on this feature as they are familiar with the facebook seen feature. Other shudder as they think that it invades their privacy. To me its a nice addition as I know that my friend has successfully read my messages. There is no way to hide now!