Complication support in watch OS 9 with ClockKit

Hi Team,

I am using the ClockKit to populate my watch app compilations. I have not added the WidgetKit target yet.

As Apple start showing warnings for the storyboard in the watch extension, I replaced the storyboard with SwiftUI classes

So now my app UI is created from SwiftUI and Complications are from ClockKit

But when the watch is upgraded to 9, there are a few issues coming up related to complications most of them are actually related to the timeline and complications are becoming unresponsive

So whether Apple still support ClockKit ? or is it mandatory to move to WidgetKIt?