0.9.0

This release is compatible with Xcode 11.5.

Additions

• The Subscribers.Demand struct can be nicely formatted in LLDB (#146, thank you @mayoff).
• Publishers.SwitchToLatest (#142).
• The RunLoop scheduler in OpenCombineFoundation (#131).
• Publishers.Catch and Publishers.TryCatch (#140).

Bugfixes

• Worked around a bug in the Swift compiler when building the COpenCombineHelpers target (#145, thank you @mayoff).
• Improved documentation.

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1 and later.