Philips Hue V1 Bridge is Now Obsolete

As of April 30th, 2020, Philips Hue will be ending support for the Hue Bridge V1.

This means that V1 will no longer work with online services like Knocki, Alexa, Google Home, and others. 

As shown below, the V1 bridge is shaped like a circle.  If you have the rectangular v2 bridge, you're all set!