release: Claude Code v2.1.81 (28 patches)

claude/releases/v2.1.81/CHANGELOG_UPSTREAM.md

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+## 2.1.81
+
+- Added `--bare` flag for scripted `-p` calls — skips hooks, LSP, plugin sync, and skill directory walks; requires `ANTHROPIC_API_KEY` or an `apiKeyHelper` via `--settings` (OAuth and keychain auth disabled); auto-memory fully disabled
+- Added `--channels` permission relay — channel servers that declare the permission capability can forward tool approval prompts to your phone
+- Fixed multiple concurrent Claude Code sessions requiring repeated re-authentication when one session refreshes its OAuth token
+- Fixed voice mode silently swallowing retry failures and showing a misleading "check your network" message instead of the actual error
+- Fixed voice mode audio not recovering when the server silently drops the WebSocket connection
+- Fixed `CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS` not suppressing the structured-outputs beta header, causing 400 errors on proxy gateways forwarding to Vertex/Bedrock
+- Fixed `--channels` bypass for Team/Enterprise orgs with no other managed settings configured
+- Fixed a crash on Node.js 18
+- Fixed unnecessary permission prompts for Bash commands containing dashes in strings
+- Fixed plugin hooks blocking prompt submission when the plugin directory is deleted mid-session
+- Fixed a race condition where background agent task output could hang indefinitely when the task completed between polling intervals
+- Resuming a session that was in a worktree now switches back to that worktree
+- Fixed `/btw` not including pasted text when used during an active response
+- Fixed a race where fast Cmd+Tab followed by paste could beat the clipboard copy under tmux
+- Fixed terminal tab title not updating with an auto-generated session description
+- Fixed invisible hook attachments inflating the message count in transcript mode
+- Fixed Remote Control sessions showing a generic title instead of deriving from the first prompt
+- Fixed `/rename` not syncing the title for Remote Control sessions
+- Fixed Remote Control `/exit` not reliably archiving the session
+- Improved MCP read/search tool calls to collapse into a single "Queried {server}" line (expand with Ctrl+O)
+- Improved `!` bash mode discoverability — Claude now suggests it when you need to run an interactive command
+- Improved plugin freshness — ref-tracked plugins now re-clone on every load to pick up upstream changes
+- Improved Remote Control session titles to refresh after your third message
+- Updated MCP OAuth to support Client ID Metadata Document (CIMD / SEP-991) for servers without Dynamic Client Registration
+- Changed plan mode to hide the "clear context" option by default (restore with `"showClearContextOnPlanAccept": true`)
+- Disabled line-by-line response streaming on Windows (including WSL in Windows Terminal) due to rendering issues
+- [VSCode] Fixed Windows PATH inheritance for Bash tool when using Git Bash (regression in v2.1.78)

claude/releases/v2.1.81/install.sh

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+#!/bin/bash
+# Claude Code Patcher — standalone installer for v2.1.81
+# Usage: sudo bash install.sh [--all] [--skip-cli]
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+CLI_JS="$SCRIPT_DIR/cli.js"
+PATCHER="$SCRIPT_DIR/claude_code_patcher.py"
+CONFIG="$SCRIPT_DIR/patcher.config.json"
+
+TARGET="/usr/lib/node_modules/@anthropic-ai/claude-code/cli.js"
+[ ! -f "$TARGET" ] && TARGET="/usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js"
+[ ! -f "$TARGET" ] && TARGET="/opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js"
+
+if [ ! -f "$TARGET" ]; then
+  echo "ERROR: Claude Code cli.js not found. Install Claude Code first."
+  exit 1
+fi
+
+# Install patched cli.js
+if [ "$1" != "--skip-cli" ]; then
+  echo "Installing patched cli.js..."
+  BACKUP="$TARGET.bak.$(date +%Y%m%d%H%M%S)"
+  cp "$TARGET" "$BACKUP"
+  cp "$CLI_JS" "$TARGET"
+  node --check "$TARGET" || { cp "$BACKUP" "$TARGET"; echo "SYNTAX ERROR, rolled back"; exit 1; }
+  echo "Installed. Backup: $BACKUP"
+fi
+
+# Apply user settings
+if [ -f "$PATCHER" ] && [ -f "$CONFIG" ]; then
+  echo "Applying user settings..."
+  python3 "$PATCHER" --config "$CONFIG" --all --skip-cli-patch --skip-update
+fi
+
+echo "Done. Run 'claude --version' to verify."