** Kasa Smart is currently only compatible with TP-LINK HS100/110/107 Smart Plug, HS103/105 Smart Plug Mini, HS200/210/220 Smart Switch, Smart Power Strip HS300, LB100/110/120/130/200/230 and KL110/120/130 Smart Bulb, IP Camera KC120/200, Smart Router SR20, and RE270/370/350K Range Extender **

Kasa Smart lets you add, configure, monitor, and control your connected TP-LINK Smart Home devices from anywhere in the world. You can schedule your appliances to turn on or off according to your schedule, or set them to Away Mode to deter would-be burglars. And that’s just the beginning. Purchase a TP-LINK Smart Home device and download the app to get started today.
From version Kasa Smart 2.9.0.825:
Customers in the European Union can now enjoy outdoor monitoring of their home with Kasa Cam Outdoor (KC200) and anyone with our popular smart plugs (HS100, 103, 105 and 110) and smart switches (HS200) will notice some visual updates the next time they control their devices.

We've also made major improvements when adding new smart bulbs; you may only add a device once in a while, but these changes should ensure new device success.
All versions
February 20, 2019
January 17, 2019
November 20, 2018
October 24, 2018
September 21, 2018
September 21, 2018
August 11, 2018
July 26, 2018
June 23, 2018
May 25, 2018