Critical Software Update for Kindle E-Readers

As you support your users with e-reader Kindles, Amazon is recommending an emergency update to keep the older models operational, and unless it's done by today (March 22nd), users will have to connect their devices to manually perform the update.  Here is more info from Amazon:  

http://www.amazon.com/gp/help/customer/display.html?nodeId=201994710