SwiftObserver 7 – Refocus

This update lets go of some hard-earned features in favour of simplicity and shifts focus to native Swift features that have recently filled some gaps.

7.0.0 also expresses a renewed commitment to semantic versioning, in particular since SwiftObserver has moved to the Codeface GitHub organization.

Removed

• Promise has been removed as any Promise/Future implementation is obsolete with Swift's latest native concurrency features.
• "One-shot" observations have been removed, as their primary purpose was to enable Promise.
• FreeObserver and "global" observations have been removed, since they undermined the memory management concept without much benefit
• Any value type-specific extensions of Var<Value> have been removed, as the property wrapper now fulfills their purpose.
• Cocoapods support has been dropped.

Changed

• Protocol Observable has been renamed to ObservableObject so the new property wrapper could be conveniently named Observable and because the protocol is actually a class protocol.
• Author filters from and notFrom require non-optional AnyAuthor.

Improved

• Variable values don't need to be Codable anymore. Var<Value> remains Codable where Value is.
• Many small refinements, more or less under the hood.

Added

• Property wrapper Observable allows to make any var: Value observable by storing it in a wrapped Var<Value>.
• CombineObserver is a new library product of the SwiftObserver package, offering conversion of SwiftObserver's ObservableObjects into Combine Publishers.