Yep (this includes their plugs too). Avoid ST plugs though.
PS. the ikea repeaters have fairly poor range though. In a couple of spots I've substituted them with CC2530/2591 units which are way more powerful.
No worries. Unfortunately you are right that they have no support from markus anymore so these [RELEASE] Xiaomi Aqara Mijia Sensors and Switches Driver? from @chirpy would be a better bet.