Container machines are a new feature of the open-source Containerization framework and container CLI tool that provides a persistent, lightweight Linux environment running in its own VM on macOS, with automatic user mapping, shared filesystem, and seamless macOS integration. Unlike ephemeral containers, a container machine retains state between sessions and feels like a native extension of the Mac.
ā¢ Cross-platform development without context switching: your username, working directory, and files are automatically mirrored from macOS into the Linux environment, so you can edit in Xcode and build/run on Linux in the same terminal session.
ā¢ Persistent, project-scoped environments: each container machine retains installed toolchains and dependencies across stops and restarts, eliminating conflicting dependency headaches between projects.
ā¢ Fast VM-backed isolation: sub-second start times with full VM-level security make container machines lightweight enough for everyday dev workflows, not just CI pipelines.
Xcode 27 introduces an agentic localization workflow that lets you ask a coding agent to translate your entire app directly inside Xcode, leveraging String Catalog context ā including where and how strings are used ā to produce accurate, consistent translations across all languages.
iOS 27 expands the App Intents framework with RelevantEntities for contextual content surfacing, EntityCollection for high-performance batch parameter handling, SyncableEntity for cross-device Siri continuity, native Duration/PersonNameComponents parameter types, and @UnionValue for multi-type parameters ā plus extended intent execution time limits.
iOS 27 adds sectioned queries, codable model attributes, ResultsObserver for non-SwiftUI change observation, and HistoryObserver for reacting to persistent history changes in SwiftData.
USDKit is a new first-party Swift framework introduced in iOS/macOS 27 that brings native USD scene creation, composition, modification, and export capabilities to Apple platform apps, with deep RealityKit and Spatial Preview integration.