ARSubsystemManager Removed

[vungoc2009]

The ARSubsystemManager has been removed in 2.0. It was previously a singleton which provided access to each of the "subsystems" (the low-level interface to the AR platform). However, some subsystems were also simultaneously managed by a MonoBehavior, e.g., ARPlaneManager.

The led to confusion about which object to interact with or subscribe to. Now, each "subsystem" has a manager component which not only provides access to that subsystem, but also manages its lifetime.

If you previously used the ARSubsystemManager, look for similar functionality on one of the managers: