<p>An April Fools joke that's getting a bit old.</p>

<p>See <a href="http://meta.stackexchange.com/questions/227363/what-are-stack-overflow-unicoins">What are Stack Overflow unicoins?</a> for more information.</p>

<p>Its release is based on your local timezone, so I in GMT+11 had this over 24 hours ago, and the rest of the world got it as midnight rolled around.</p>