v0.0.6

• ReplayLatestSubject – Replays the latest emitted value (if any) to new subscribers
• StatelessReplayLatestSubject – Like ReplayLatestSubject, but forgets completion and resets when all observers unsubscribe
• ReplayLatestPublish – Like Publish, but shares and replays the latest emitted value (if any)
• StatelessReplayLatestPublish – ReplayLatestPublish backed by stateless subjects, resetting when all observers unsubscribe
• Using – Creates an observable that binds the lifetime of a disposable resource to the subscription, ensuring deterministic cleanup on disposal
• Merge(maxConcurrent) – Limits the number of concurrent inner subscriptions when merging observables
• Fixed a bug where OperationCanceledException would not complete the observable and properly dispose the observer

ReplayLatest subjects and operators bridge the gap between Publish and full replay semantics by sharing only the most recent value when available. Stateless variants ensure the observable resets cleanly across multiple subscription cycles, making them safe and reusable with RefCount.