← Claude Code changelog

Claude Code 2.1.211

Introduction of subagent text and thinking directly within stream-json output, providing deeper insight for integrations and advanced workflows. This release also brings numerous critical stability and control improvements, including a fix for prompt-caching billing on certain platforms, enhanced agent behavior and result reporting, and improved plugin reliability. Significant security and usability fixes address issues with permission previews, parallel session logout, and robust file uploads across various environments, ensuring a more consistent and secure experience for all users.

Added

  • Added `--forward-subagent-text` flag and `CLAUDE_CODE_FORWARD_SUBAGENT_TEXT` environment variable to include subagent text and thinking in stream-json output

Improved

  • Improved terminal layout and rendering performance
  • Improved background agent result reporting — Claude now reports the status of still-running agents and waits for the real completion instead of fabricating results
  • Improved the memory index over-limit warning to measure only loaded content, excluding frontmatter and HTML comments

Changed

  • Hardened synced skill/plugin directory naming on Windows and kept CCR web fetch/search proxies working after `/clear`
  • Updated integer environment variables (timeouts, token budgets, retry counts) to accept scientific notation and digit-separator spellings like `1e6` and `64_000`
  • Updated documentation links to the current docs sites
  • Changed "always allow" permission rules to save at the repository root, so approvals granted in a git worktree persist across sessions and worktrees
  • Changed `/usage-credits` to ask for confirmation before sending a request to organization admins
  • Changed Vim mode `s` and `S` (substitute char/line) to work in NORMAL mode, matching vim behavior
  • Updated the Remote Control banner to describe what it does
  • Claude in Chrome: hardened file-upload path validation
  • Claude in Chrome: `save_to_disk` on screenshot actions now writes the image to disk and returns the path; previously it did nothing

Fixed

  • Fixed permission previews relayed to chat channels not neutralizing bidirectional-override, zero-width, and look-alike quote characters, so tool inputs cannot visually alter the approval message
  • Fixed auto mode overriding a PreToolUse hook's `ask` decision for unsandboxed Bash — a hook `ask` now floors the decision at a prompt
  • Fixed parallel Claude Code sessions all logging out simultaneously after wake-from-sleep when many sessions share one credential store
  • Fixed plugin MCP servers not reconnecting after an idle web session woke, leaving MCP calls failing until the next message
  • Fixed Claude Code on Vertex and Bedrock attempting the default Opus model at startup and printing a spurious fallback notice when a model is explicitly configured
  • Fixed subagents spawned with an explicit model override reverting to the parent's model when resumed or sent a follow-up message
  • Fixed nested `.claude/rules/*.md` files loading even when setting sources exclude project settings
  • Fixed file upload validation: filenames ending in a DOS device suffix (`.prn`) or trailing dot are now accepted, and files with multiple hard links are refused
  • Fixed file uploads to Claude in Chrome from remote and CLI sessions
  • Fixed edits that leave the input as "?" being silently swallowed and toggling the shortcuts panel
  • Fixed a startup hang when the Claude in Chrome extension is enabled but Chrome is not running
  • Fixed a 300ms delay revealing async content (Settings tabs, Stats, diff views, and other loading states)
  • Fixed reopening a just-stopped background session from the agents view starting a blank conversation under the same session id
  • Fixed `/loop` hiding the session from `/resume` after a single use
  • Fixed screen reader users losing the audible terminal bell after `/terminal-setup` or onboarding terminal setup
  • Fixed background jobs on LLM gateway auth (`ANTHROPIC_AUTH_TOKEN` + `ANTHROPIC_BASE_URL`) coming back "Not logged in" after the daemon respawns them
  • Fixed `claude agents` jobs becoming permanently undeletable when git no longer recognizes their worktree — the row now shows why the delete was refused instead of silently reappearing
  • Fixed `/clear` not resetting the session cost counter — the statusline's cost now starts at $0 after `/clear`
  • Fixed Claude in Chrome setup pages failing to open in the browser on Windows
  • Fixed headless print-mode sessions on Windows crashing or silently exiting when stdin is unreadable
  • Fixed background session titles in the agents view showing the naming model's refusal text when the prompt contains a link
  • Fixed background agents killed by the user auto-respawning, and revived agents re-running stale prompts from old sessions
  • Fixed routines with no schedule reporting a next run time in the year 1
  • Fixed a prompt-caching regression on Bedrock, Vertex, Mantle, and Foundry that billed the trailing system context block as fresh input tokens on every request.