Week 24 · June 8–12, 2026

Move a session to a new directory with /cd, let subagents spawn their own subagents, and troubleshoot a broken configuration with safe mode.

Releases v2.1.166 → v2.1.1763 features · June 8–12

Move a session with /cdv2.1.169

The new /cd command moves the current session to a different working directory without rebuilding the prompt cache: the new directory's CLAUDE.md is appended as a message instead of replacing the system prompt. The session relocates to the new directory's project storage, so `--resume` and `--continue` find it there. Claude prompts you to trust the directory if you haven't worked in it before.

Move the session into another project without restarting:

> /cd ../other-project

Commands reference

Subagents can spawn subagentsv2.1.172

Subagents can now spawn their own subagents. The subagent panel below the prompt shows the full tree: each row carries a count of its descendants and a path back to main. Subagent chains are capped at five levels deep to prevent runaway concurrent trees.

Open the agents view to watch the nested tree as work fans out:

> /agents

Spawn nested subagents

Troubleshoot with safe modev2.1.169

Start Claude Code with `--safe-mode`, or set CLAUDE\_CODE\_SAFE\_MODE, to launch with all customizations disabled: CLAUDE.md, skills, plugins, hooks, MCP servers, and custom commands and agents do not load. Authentication, model selection, built-in tools, and permissions still work. If a problem disappears in safe mode, one of those surfaces is the cause.

Launch a clean session to isolate a broken configuration:

claude --safe-mode

Test against a clean configuration

<div className="digest-wins"> <p className="digest-wins-title">Other wins</p> <div className="digest-wins-grid"> <div><a href="https://code.claude.com/docs/en/model-config#fallback-model-chains"><code>fallbackModel</code></a> configures up to three fallback models tried in order when the primary is overloaded or unavailable, and `--fallback-model` now applies to interactive sessions too</div> <div>Session titles are now generated in the language of your conversation; pin a specific one with the <code>language</code> setting</div> <div>`claude agents --json` adds `--all` to include completed sessions plus new <code>id</code> and <code>state</code> fields, and no longer omits blocked or newly dispatched sessions</div> <div>Browsing a marketplace's plugins in <code>/plugin</code> now has a search bar</div> <div>New <code>disableBundledSkills</code> setting and <code>CLAUDE\_CODE\_DISABLE\_BUNDLED\_SKILLS</code> hide bundled skills, workflows, and built-in commands from the model</div> <div>Deny rules accept a glob in the tool-name position, so <code>"\*"</code> denies all tools, and unknown tool names in deny rules now warn at startup</div> <div>Agent messaging is hardened: messages relayed via <code>SendMessage</code> from other agents no longer carry user authority, and auto mode blocks them</div> <div>Amazon Bedrock reads the AWS region from <code>\~/.aws</code> config files when <code>AWS\_REGION</code> is unset, and <code>/status</code> shows where the region came from</div> <div>New <code>enforceAvailableModels</code> managed setting makes the <code>availableModels</code> allowlist also constrain the Default model</div> <div>Claude in Chrome browser tools now load in a single batched call instead of one per tool</div> <div><code>claude update</code> announces the target version before downloading instead of going silent</div> <div>New <code>footerLinksRegexes</code> setting adds regex-matched link badges to the footer row</div> </div> </div>

Full changelog for v2.1.166–v2.1.176 →