Anthropic

Stopping a background agent from the tasks panel is now permanent — agents no longer resurrect after being stopped. The scroll position no longer jumps to the bottom while reading earlier output during streaming, and CPU usage during streaming is reduced by ~37%. Also fixed hooks with comma-separated matchers, Cmd+click in Ghostty over ssh/tmux, and managed settings propagation.

What's changed

• Bug fixes and reliability improvements

Sandboxed commands can now be blocked from reading credentials and secrets via sandbox.credentials, and org-configured model restrictions are enforced across the model picker, --model, and /model. Fixes include remote MCP tool call timeout, CJK text mojibake, agent proxy startup latency, and dozens more.

Claude Tag is a new way for teams to work with Claude.

Added claude mcp login and logout for authenticating MCP servers from the CLI without the interactive menu, with --no-browser for SSH. Bash ! commands now trigger Claude to respond automatically; set "respondToBashCommands": false to restore the previous context-only behavior. Over 20 fixes including streaming requests failing after wake-from-sleep, subagent transcript scroll bleeding, and agent team effort-level inheritance.

The stream-stall hint now reads "Waiting for API response · will retry in …" instead of "No response from API · Retrying in …", and triggers after 20 seconds of silence instead of 10.

Destructive git commands (git reset --hard, git checkout --., git clean -fd, git stash drop) are now blocked when you didn't ask to discard local work. Fixed fullscreen TUI corruption in Windows Terminal under heavy nested-subagent load, blank turns from thinking-only model responses, and MCP servers exposing auth-stub tools in headless mode.

Prompt caching now reads correctly on custom ANTHROPIC_BASE_URL and Foundry settings, among dozens of other fixes. A new /config key=value syntax lets you set any setting from the prompt, and the bundled Bun runtime is upgraded to 1.4. Plus fixes for network drive writes, macOS TUI freezes, and startup blocking.

Anthropic opens Seoul office and announces new partnerships across the Korean AI ecosystem.

Partial responses are now preserved when the connection drops mid-stream, and the spinner no longer gets stuck. Also fixed a WSL2 scrolling regression, a sandbox glob making the Bash tool unusable, and several session and UI issues.

Fixed an out-of-memory crash from stale websocket/OAuth file-descriptor environment variables and a silent connection failure when the OAuth token belongs to a different account than the Claude Code login. Added wildcard parameter matching for tool permission rules and nested .claude/skills directory loading, plus numerous subagent, MCP, and vim mode fixes.

We've retired the Claude Sonnet 4 model (claude-sonnet-4-20250514) and the Claude Opus 4 model (claude-opus-4-20250514). All requests to these mod...