was only available on 4k devices. This means that even older Roku devices that only support HD (1080P) will now allow you to cast from iOS devices.
Rollout is starting today of OS 10.
RokuRoku provides the simplest way to stream entertainment to your TV. On your terms. With thousands of available channels to choose from.
http://www.roku.com[https://newsroom.roku.com/news/2021/04/roku-os-10-makes-streaming-easier-with-quicker-access-to/s6l2sca2-1618319762]