Claude Code

## What's changed - Fixed Fable 5 model names with a `[1m]` suffix not being normalized, Fable 5 includes 1M context by default, so the suffix is now stripped automatically - Fixed a spurious "sandbox dependencies missing" startup warning on Windows when sandbox was enabled in settings

## What's changed - Sub-agents can now spawn their own sub-agents (up to 5 levels deep) - Amazon Bedrock now reads the AWS region from `~/.aws` config files when `AWS_REGION` isn't set, matching AWS SDK precedence; `/status` shows where the region came from - Added a search bar when browsing a marketplace's plugins in `/plugin` - Added `model` attribute to the `claude_code.lines_of_code.count` OTEL metric - Fixed sessions using 1M context without usage credits getting permanently stuck, the session now automatically compacts back under the standard context limit - Fixed a repeating "an image in the conversation could not be processed and was removed" error when the conversation contained multiple images - Fixed the agents view keeping a session under Working with a busy spinner for up to 30 seconds after the worker replied - Fixed background agents potentially reading another directory's project settings (`.mcp.json` approvals, trust) when dispatched onto a pre-warmed worker - Fixed background-session attach failing with EAUTH for sessions started on an older version after the daemon auto-updated - Fixed a background sub-agent staying stuck as "active" in the agent panel after a nested agent it spawned was stopped - Fixed `/model` suggestions in the `claude agents` dispatch input rendering with a misleading slash prefix and showing models disabled for your org - Fixed `availableModels` restrictions not being applied to subagent model overrides, the agent dispatch model picke…

## What's changed - Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use. Fable’s capabilities exceed those of any model we’ve ever made generally available. Update to version 2.1.170 for access. https://www.anthropic.com/news/claude-fable-5-mythos-5 - Fixed sessions not saving transcripts (and not appearing in --resume) when launched from the VS Code integrated terminal or any shell that inherited Claude Code environment variables.

## What's changed - Added `--safe-mode` flag (and `CLAUDE_CODE_SAFE_MODE`) to start Claude Code with all customizations (CLAUDE.md, plugins, skills, hooks, MCP servers) disabled for troubleshooting - Added `/cd` command to move a session to a new working directory without breaking the prompt cache mid-session - Added a `disableBundledSkills` setting and `CLAUDE_CODE_DISABLE_BUNDLED_SKILLS` environment variable to hide bundled skills, workflows, and built-in slash commands from the model - Fixed Up/Down arrows jumping to command history past the wrapped rows of a long input line, they now move through each visual row first, and history recall enters at the near edge - Fixed enterprise managed MCP policies (`allowedMcpServers`/`deniedMcpServers`) not being enforced on reconnect, IDE-typed configs, `--mcp-config` servers during the first session after install, or before remote settings loaded; also fixed slow cold starts for orgs without remote settings - Fixed a ~30-50ms UI stall at the start of each turn for macOS users logged in with claude.ai credentials - Fixed `claude -p` being slow or appearing to hang on Windows while waiting for the slash-command/skill scan (regression in 2.1.161) - Fixed Remote Control getting stuck on "reconnecting" after resuming a session when an OAuth token refresh happened at the same time - Fixed Git Credential Manager's "Connect to GitHub" popup appearing on Windows at startup when background git commands ran without cached credentials - Fixed …

## What's changed - Bug fixes and reliability improvements