← Claude Code changelog

Claude Code 2.1.223

This release introduces powerful new features like owner wildcard entries for marketplace settings, enabling simplified management of GitHub organization repositories. Users gain a helpful `/teleport` hint for seamless cloud-to-local session transfers, alongside warnings for restricted subagent model usage. Significant security enhancements fix permission bypasses in Bash commands and approval dialogs, prevent sandbox escapes, and enforce organizational policies. Key improvements also include more robust session resumption, better context window management for all models, and accurate model discovery and configuration handling.

Added

  • Added owner wildcard entries (`"owner/*"`) to the `strictKnownMarketplaces` and `blockedMarketplaces` managed settings for allowing or blocking all marketplace repos under a GitHub org
  • Added a warning when workflow agents, forked skills, slash commands, or resumed background agents' requested subagent model is restricted and the parent model runs instead
  • Added a `/teleport` hint in cloud sessions showing how to continue locally with `claude --teleport <session id>`

Changed

  • Changed `CLAUDE_CODE_DISABLE_1M_CONTEXT` to hold every Claude model with a native 1M window to 200K via auto-compaction, not just a fixed list; a startup warning now appears when auto-compaction isn't holding the session to 200K
  • Changed auto-compact to keep sessions on unrecognized model IDs within the assumed context window instead of letting them grow past it; set `CLAUDE_CODE_DISABLE_UNKNOWN_MODEL_WINDOW_ENFORCEMENT=1` to restore the previous behavior
  • Changed `/review` to be an alias of `/code-review`, which reviews the current diff or a PR (`/code-review <level> <pr#>`); use `/code-review ultra` for a deep cloud review
  • Changed `/code-review` with no effort level to reuse the level you typed last; type a level like `/code-review high` to change it

Fixed

  • Fixed a Bash permission bypass where a crafted command could hide parts of itself from permission checks
  • Fixed permission prompts so commands padded with tabs or invisible Unicode can no longer hide part of the command from the approval dialog
  • Fixed workflow scripts being able to use dynamic `import()` to run code outside the workflow sandbox
  • Fixed a permission gap where an agent definition's `bypassPermissions` mode ignored the org bypass-permissions disable policy
  • Fixed resuming a session after a mid-session `/cd` coming back empty
  • Fixed gateway model discovery hiding Claude models registered under provider-prefixed IDs such as `vertex_ai/claude-*` or `bedrock/anthropic.claude-*`
  • Fixed `modelOverrides` keys that aren't Anthropic model IDs being treated as the session's canonical model ID; unknown keys are now ignored as documented
  • Fixed managed settings: server-delivered settings no longer disable the env block of a machine-local `managed-settings.json` or MDM profile; admin env now merges per key
  • Fixed sandboxed commands failing to start on Linux when `sandbox.filesystem.denyWrite` covers the working directory
  • Fixed forked background agents getting stuck "already resuming" for the rest of the session when rebuilding the fork's parent prompt failed during resume
  • Fixed a resumed session failing every turn, or leaving the interactive app on an unresponsive error screen, when its history held a malformed diagnostics attachment
  • Fixed a rare hang when parsing unusual `git push` output