Where can we see Compose's supported Kotlin version?

In the Changelog (https://developer.android.com/jetpack/androidx/releases/compose-ui#1.0.1). However, I’m a little curious about this. Why can’t Kotlin provide a stable compiler plugin interface so that compose doesn’t have to worry about compatibility often

Is

kotlinCompilerExtensionVersion

still required? It got removed from the documentation

In my impression, they are changed to AGP internal declarations, so there is no need to declare it manually now

Kotlin can't provide a stable compiler plugin interface, because it's not stable.