• FlowTurbine is now called ReceiveTurbine. This is the consume-only type with which you assert on events it has seen (historically only from a Flow).
• New public Turbine type implements ReceiveTurbine but also allows you write events from a data source. Use this to implement fakes or collect events from non-Flow streams.
• Extension functions on ReceiveChannel provide ReceiveTurbine-like assertion capabilities.
• Support for legacy JS has been removed. Only JS IR is now supported.
• Removed some APIs deprecated in 0.8.x.