I am setting up Caseta through the house. But will also be replacing the lighting in the kitchen soon with an IKEA light. At the time we bought the lights, we bought the ikea Dimmable lights (link below). They are GU10 base, 6W dimmable, and the light will have 5 lights on the rail.
I see the caeta official list which has some GU10 on there, but not the IKEA ones, so before i crack open $45 woth of LEDs. wanted to check and see if anyone else has used them in their house and can confirm they work. Otherwise, might return them and get the officially tested brands.