Over the coming days/weeks those with the Nexus 5 should see the OTA update being offered to them but as is always the way with these OTA updates the roll out will be gradual.
Some users have already got their hands on the update and the most significant change appears to be in the Camera department where a number of changes have been made that improves the overall performance of the camera. Good news for those of us that felt that the camera was lacking on the Nexus 5.
If you cant wait for the update to arrive through the official channels over the air then you can force the install if you are happy to jump through a few hoops.
I’m currently updating my Nexus 5 and will return with news of the update!