Claude Code v2.1.223 Released — Owner Wildcards, Teleport Hint, Multiple Security Fixes

Claude Code’s latest release is a substantial one — three new capabilities, a security-relevant Bash permission bypass fix, and ten additional bug fixes that clear up persistent issues around session resume, model discovery, and Linux sandbox behavior. If you’re running Claude Code in an organizational context, v2.1.223 deserves attention.

The full changelog is available at github.com/anthropics/claude-code/blob/main/CHANGELOG.md. What follows is a breakdown of the changes that matter most, sourced directly from the official changelog.

New Feature: Owner Wildcards in Managed Settings

The headline addition for org admins: owner/* wildcard support for the strictKnownMarketplaces and blockedMarketplaces managed settings.

Previously, if you wanted to restrict Claude Code to only approved marketplace repositories from a specific GitHub organization, you had to enumerate each repository explicitly. As an organization’s approved toolset grows, maintaining that list manually becomes error-prone.

With v2.1.223, you can specify owner/* as a single entry to match all repositories under a given GitHub organization — in both the allow (strictKnownMarketplaces) and block (blockedMarketplaces) directions.

Example pattern (from the changelog, conceptually):

  • "anthropic/*" — matches all repos under the anthropic GitHub organization
  • "mycompany/*" — matches all repos under mycompany

This is a quality-of-life improvement with real security implications: it makes it practical to maintain correct allow/block lists at scale without gaps from missing individual entries.

For the current managed settings schema and where these values are configured (MDM profile, machine-local managed-settings.json, or server-delivered settings), refer to the official Anthropic Enterprise documentation.

New Feature: Restricted Subagent Model Warning

When a workflow agent, forked skill, slash command, or resumed background agent requests a subagent model that’s restricted by org policy, Claude Code now surfaces a warning explaining that the requested model was restricted and the parent model ran instead.

Previously, this substitution happened silently. If your org has policies that restrict certain models (say, blocking access to non-approved model variants), your subagent workflows would proceed but use unexpected models with no indication anything changed.

The new warning closes that visibility gap. It doesn’t change the behavior — the parent model still runs when the requested model is restricted — but it makes the substitution auditable and visible.

New Feature: /teleport Hint in Cloud Sessions

Cloud sessions now display a /teleport hint showing how to continue a session locally using claude --teleport <session id>.

This is a discoverability improvement. The teleport capability (picking up a cloud session locally using the session ID) existed before, but users had to know to look for it. The in-session hint makes the workflow accessible without consulting documentation.

Security Fix: Bash Permission Bypass

This is the most security-relevant fix in the release. Two related Bash permission bypass vulnerabilities have been patched:

Bypass 1: A crafted command could hide parts of itself from Claude Code’s permission checks. The fix ensures the full command is evaluated for permission purposes, not just the visible portion.

Bypass 2: Commands padded with tabs or invisible Unicode characters could hide part of the command from the approval dialog — meaning a user might approve what appeared to be a safe command while the actual command executed additional invisible operations.

Both of these are meaningful attack surface reductions for anyone using Claude Code in contexts where the agent operates with elevated access or where code from external sources might be executed. The tab/invisible Unicode variant is especially worth noting because it could have affected the human review step that many teams rely on as a safeguard.

Security Fix: bypassPermissions Policy Gap

A permission gap where an agent definition’s bypassPermissions mode ignored the org bypass-permissions disable policy has been fixed. If your org policy disables bypass-permissions, agent definitions that specified bypassPermissions mode were not respecting that policy. They now do.

Security Fix: Workflow Sandbox Escape

Workflow scripts could use dynamic import() to run code outside the workflow sandbox. This has been patched. Workflow scripts are now properly contained.

Bug Fixes Worth Knowing

Beyond the security patches, several bug fixes address real-world pain points:

Session resume fixes:

  • Fixed resuming a session after a mid-session /cd command returning empty
  • Fixed a resumed session failing every turn, or leaving the app in an unresponsive error screen, when its history contained a malformed diagnostics attachment
  • Fixed forked background agents getting stuck in “already resuming” state when rebuilding the fork’s parent prompt failed

Model discovery:

  • Fixed gateway model discovery hiding Claude models registered under provider-prefixed IDs like vertex_ai/claude-* or bedrock/anthropic.claude-*. If you deploy Claude Code through a gateway with provider-prefixed model IDs, these were previously invisible to model discovery.
  • Fixed modelOverrides keys that aren’t Anthropic model IDs being treated as the session’s canonical model ID — unknown keys are now correctly ignored

Managed settings:

  • Fixed server-delivered settings disabling the env block of machine-local managed-settings.json or MDM profiles. Admin env values now merge per-key rather than the server-delivered config overriding the local config entirely.

Linux sandbox:

  • Fixed sandboxed commands failing to start on Linux when sandbox.filesystem.denyWrite covers the working directory

Miscellaneous:

  • Fixed a rare hang when parsing unusual git push output

Upgrading

Update via your standard npm/npx installation path. The changelog is the authoritative reference for all changes — always verify current behavior against the official documentation rather than assuming behavior from prior versions, especially for security-related managed settings.

Changelog: github.com/anthropics/claude-code/blob/main/CHANGELOG.md

Sources

  1. Claude Code CHANGELOG.md — GitHub (anthropics/claude-code)
  2. Claude Platform release notes — Anthropic

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