I'm not sleeping tonight.

Enhanced terminal experience

We’ve also refreshed Claude Code’s terminal interface. The updated interface features improved status visibility and searchable prompt history (Ctrl+r), making it easier to reuse or edit previous prompts.

Claude Agent SDK

For teams who want to create custom agentic experiences, the Claude Agent SDK (formerly the Claude Code SDK) gives access to the same core tools, context management systems, and permissions frameworks that power Claude Code. We’ve also released SDK support for subagents and hooks, making it more customizable for building agents for your specific workflows.

Developers are already building agents for a broad range use cases with the SDK, including financial compliance agents, cybersecurity agents, and code debugging agents.

Execute long-running tasks with confidence

As Claude Code takes on increasingly complex tasks, we're releasing a checkpointing feature to help delegate tasks to Claude Code with confidence while maintaining control. Combined with recent feature releases, Claude Code is now more capable of handling sophisticated tasks.

Checkpoints

Complex development often involves exploration and iteration. Our new checkpoint system automatically saves your code state before each change, and you can instantly rewind to previous versions by tapping Esc twice or using the /rewind command. Checkpoints let you pursue more ambitious and wide-scale tasks knowing you can always return to a prior code state.

When you rewind to a checkpoint, you can choose to restore the code, the conversation, or both to the prior state. Checkpoints apply to Claude’s edits and not user edits or bash commands, and we recommend using them in combination with version control.

Subagents, hooks, and background tasks

Checkpoints are especially useful when combined with Claude Code’s latest features that power autonomous work:

Subagents delegate specialized tasks—like spinning up a backend API while the main agent builds the frontend—allowing parallel development workflows Hooks automatically trigger actions at specific points, such as running your test suite after code changes or linting before commits Background tasks keep long-running processes like dev servers active without blocking Claude Code’s progress on other work Together, these capabilities let you confidently delegate broad tasks like extensive refactors or feature exploration to Claude Code.

iirc yesterday claude code updated from 1.0.44 to 1.0.45 and today, running the same update command, it decides to 'update' from 1.0.45 to 1.0.44

hope am not hallucinating..

Claude Code CLI 2.0.73 changelog:

• Added clickable [Image #N] links that open attached images in the default viewer.

• Added alt-y yank-pop to cycle through kill ring history after ctrl-y yank.

• Added search filtering to the plugin discover screen (type to filter by name, description, or marketplace).

• Added support for custom session IDs when forking sessions with --session-id combined with --resume or --continue and --fork-session

• Fixed slow input history cycling and race condition that could overwrite text after message submission.

• Improved /theme command to open theme picker directly.

• Improved theme picker UI.

• Improved search UX across resume session, permissions, and plugins screens with a unified SearchBox component.

• [VSCode] Added tab icon badges showing pending permissions (blue) and unread completions (orange).

Source: Anthropics Claude Code(GitHub)