The most useful new feature improves the ease of transferring your chat history cross-platform from iOS to Android. You can't save your call history, display name, or media you've received over channels, but you can save your account info, profile photo, individual and group chats, communities chat history, and settings.
Also in version 1.10.0, Compose Multiplatform now uses the Web Cache API to cache successful responses for static assets and string resources. This avoids the delays associated with the browser's default cache, which validates stored content through repeated HTTP requests and can be slow on low-bandwidth connections. The cache is cleared on every app launch or page refresh to ensure resources remain consistent with the application's current state. This capability is an experimental feature.
As a high-level description, Swift is an ahead-of-time compiled, memory-safe, multi-paradigm programming language. Swift uses reference counting for memory management instead of garbage collection, and has recently added support for limited lifetime analysis. Finally, Swift leans heavily on types with value semantics by leveraging copy-on-write. This enables powerful local reasoning, as value types are either mutable or shared, but not both.