Claude Code v2.1.66

Released Mar 4, 2026 (5 months ago).

"References this build" means the issue body mentions running 2.1.66 (from the bug-report template). It reflects report volume, not a proven defect count — an issue may mention a version without being caused by it. First-party data from the anthropics/claude-code tracker.

Top issues reported on v2.1.66

Ranked by community engagement (reactions and comments).

• [BUG] [Reopening because bot closed without discussion] Native installer doesn't work on FreeBSD
  Resolved 💬 60 👍 75 #30640
• [BUG] iOS Claude Code notifications broken
  Resolved 💬 18 👍 34 #30592
• Agent tool missing 'model' parameter for team agent model selection
  Resolved 💬 10 👍 22 #31027
• v2.1.69: Freezes on startup on Windows - mkdirSync EEXIST error loop
  Resolved 💬 10 👍 20 #30960
• Remote Control sessions don't appear in mobile app until session URL is opened manually
  Resolved 💬 10 👍 10 #30691
• [BUG] v2.1.68 (updated 2026-03-04) opens 3 blank VS Code windows when claude is started in the integrated terminal.
  Resolved 💬 9 👍 9 #30848
• Prompt suggestions not appearing despite CLAUDE_CODE_ENABLE_PROMPT_SUGGESTION=true (v2.1.66)
  Resolved 💬 5 👍 5 #30600
• [BUG] Windows: CLI spawns 3 empty VSCode windows on startup — root cause is `code` CLI calls from integrated terminal
  Resolved 💬 4 👍 4 #30975
• "Update available! Run: brew upgrade claude-code" shown even when already on latest version (Homebrew cask install)
  Resolved 💬 3 👍 4 #30707
• [BUG] http hooks with json don't work.
  Resolved 💬 8 👍 2 #30613
• [BUG] Single session startup triggers 429 rate limit on client_data endpoint, causing false "1 MCP server failed" status
  Resolved 💬 7 👍 2 #30616
• [BUG] Claude not using same settings across worktrees of the same repo
  Resolved 💬 2 👍 1 #30607
• [BUG] Voice recording not working on Windows 11
  Resolved 💬 4 #33929
• [BUG] API Error: Rate limit reached + Silent API Credit Billing Despite Active Claude Max Subscription (VS Code Extension)
  Resolved 💬 4 #32286
• [BUG] Auto-memory resolves to main repo path for git worktrees, preventing per-worktree memory
  Resolved 💬 4 #30667
• Since Outage, Claude Messed up
  Resolved 💬 4 #30659
• [BUG] "claude install" under Windows always installs itself under ~/.local and there is no way to change this
  Resolved 💬 4 #30633
• Plan mode auto-generated filename can produce inappropriate-sounding names
  Resolved 💬 3 #52836
• [ISSUE] Usage counting discrepancy after /usage endpoint unavailability
  Resolved 💬 3 #32441
• [BUG] MCP tool search stopped working since some version between 2.1.67 and 2.1.71
  Resolved 💬 3 #32343
• [BUG] --disallowedTools and --tools cause silent 0-cost exit in pipe mode when combined with --mcp-config + large --append-system-prompt
  Resolved 💬 3 #32079
• [Bug] Tool execution stuck in infinite loop with no output from bash command
  Resolved 💬 3 #31429
• RTL text (Persian/Kurdish/Arabic) displays reversed since v2.1.66
  Resolved 💬 3 #30694
• [Bug] Voice mode WebSocket connection blocked by Cloudflare challenge on claude.ai
  Resolved 💬 3 #30664
• [Bug] Custom agents fail to initialize
  Resolved 💬 3 #30652
• [Bug] ASCII graph rendering fails with Chinese characters
  Resolved 💬 3 #30651
• [Bug] Code files modified without explicit user acceptance outside auto-accept mode
  Resolved 💬 3 #30643
• [BUG] Shell snapshot corruption on Windows MSYS/Git Bash - base64 data interpreted as commands
  Resolved 💬 3 #30638
• [BUG] VSCode Extension `/context` command not work
  Resolved 💬 3 #30610
• Plan upgrade breaks all open VS Code conversations
  Resolved 💬 3 #30598