RxSwift 6.0.0 RC1

This is the first Release Candidate of RxSwift 6.

Note: RxSwift 6 supports Xcode 12 and Swift 5.3 and has a minimum deployment target of iOS 9.

• All ReactiveCompatible objects (.rx namespace) get Binders for all properties for free using @dynamicMemberLookup.
• New Infallible object which is identical to Observable with the guarantee of never failing.
• Add variadic drive() and emit() to multiple observers and relays.
• New decode(type:decoder:) operator for ObsrvableTypes of Data.
• SingleEvent is now simply Result<Element, Swift.Error> and methods changed accordingly (e.g. subscribe(onSuccess:onFailure:)).
• Add ReplayRelay.
• Add distinctUntilChanged(at keyPath:).
• Add UIApplication Reactive extensions .
• Rename catchError(_:) to catch(_:).
• Rename catchErrorJustReturn(_:) to catchAndReturn(_:).
• Rename elementAt(_:) to element(at:).
• Rename retryWhen(_:) to retry(when:).
• Rename takeUntil(_:) to take(until:) and takeUntil(behavior:_:) to take(until:behavior:).
• Rename takeWhile(_:) to take(while:) and takeWhile(behavior:_:) to take(while:behavior:).
• Rename take(_:) duration overload to take(for:) (e.g. take(for: .seconds(3))).
• Rename skipWhile(_:) to skip(while:).
• Rename takeUntil(_:) to take(until:).
• Rename observeOn and subscribeOn to observe(on:) and subscribe(on:).
• ignoreElements() now returns Observable<Never>.
• Make SharedSequence conform to ObservableConvertibleType.
• Add onDisposed to Maybe, Completable and Single.
• Unify and optimize swizzling extensions into a single one.
• Add DisposeBag function builder to allow easy comma-less initialization of a DisposeBag.
• Advance support of xcframeworks by enabling BUILD_LIBRARY_FOR_DISTRIBUTION and cleaning up.
• Many, many, many quality of life bugs and fixes.