Claude Code has received significant upgrades aimed at enhancing its autonomous capabilities and user experience, including a new native VS Code extension, an updated terminal interface, and a checkpoint system for handling complex tasks. The VS Code extension, now in beta, offers real-time changes and a graphical experience within the IDE, while the terminal interface improvements provide better status visibility and prompt history searchability. The Claude Agent SDK, formerly known as the Claude Code SDK, now supports subagents and hooks for custom agent development, allowing the creation of specialized agents for various applications. The introduction of a checkpoint system allows users to save and revert code states, facilitating exploration and iteration in complex development tasks. These updates, powered by the new Claude Sonnet 4.5 model, are aimed at enabling more sophisticated and parallel workflows, with features like background tasks and automated hooks enhancing task delegation and execution confidence.