Claude Code v2.1.165

Released Jun 5, 2026 (2 months ago).

"References this build" means the issue body mentions running 2.1.165 (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 v2.1.165

Ranked by community engagement (reactions and comments).

• [BUG] Inline $...$ LaTeX does not render in Claude Code desktop tab (macOS/Windows) — display $$...$$ works
  Resolved 💬 13 👍 56 #65777
• [BUG] Cowork Edit/Write tools silently truncate files via byte-conservation buffer cap (deterministic, fires at all file sizes)
  Open 💬 44 👍 16 #53940
• Pre-tool-call assistant text never emitted (prose stays in thinking) — onset ~2026-06-04, not CLI-version-bound
  Open 💬 29 👍 19 #65620
• [BUG] Claude Cowork sandbox never becomes ready on Windows ARM64 / Snapdragon X Plus
  Open 💬 12 👍 11 #66535
• [BUG] Claude Code in the Claude Desktop app runs UserPromptSubmit hooks and enforces blocks, but renders no user-facing hook feedback (CLI renders all)
  Open 💬 0 👍 10 #66555
• [BUG] Workflow-tool agent() subagents omit x-claude-code-agent-id / parent-agent-id (Task subagents are tagged)
  Resolved 💬 7 👍 7 #66761
• [Bug] Claude Code hangs with repeated "court" string output on each turn
  Resolved 💬 3 👍 8 #65791
• [BUG] Unexpected token usage spike and continued consumption while Claude Code is inactive
  Open 💬 13 👍 4 #65687
• Desktop app leaks pseudo-terminals (ptys) until the system runs out (forkpty: Device not configured)
  Resolved 💬 11 👍 4 #66434
• Claude Desktop leaks pty (ptmx) fds -> system-wide pty exhaustion (terminals die with 'forkpty: Device not configured')
  Resolved 💬 5 👍 6 #65995
• Delete session button has no confirmation and sits 1px from edit button in VS Code session list
  Resolved 💬 2 👍 6 #65703
• [Bug] Windows: terminal/cmd windows flash on every subprocess spawn across multiple CCD sessions
  Open 💬 8 👍 3 #66540
• [BUG] /deep-research — default workflow frequently hits "API Error: Server is temporarily limiting requests"
  Open 💬 8 👍 3 #65731
• [BUG] Windows: claude agents spawn visible reg.exe console windows during background session startup
  Resolved 💬 6 👍 3 #65691
• [BUG] Transient server errors MUST NOT kill subagents
  Resolved 💬 4 👍 3 #65882
• [BUG] Background Agent tasks persist as "running" in /workflows after full process restart on both dispatch and viewing hosts
  Open 💬 9 👍 1 #65925
• Stats heatmap counts a day active only if a session STARTED that day — days spent entirely in resumed sessions show 0 and break the streak
  Resolved 💬 3 👍 3 #65611
• [BUG] attribution.commit setting in settings.json is ignored — system prompt Co-Authored-By trailer always wins
  Resolved 💬 2 👍 3 #65657
• [Bug] Agent context fills unexpectedly when calling `/claude-api` endpoint
  Resolved 💬 2 👍 3 #65580
• [BUG] Windows desktop app main process does ~95,000 file ops/sec → kernel non-paged pool leak (~14 GB/hr) → full system freeze. Regression in 1.11847.5
  Resolved 💬 4 👍 2 #67932
• [BUG] Commits authored by claude-code@anthropic.com are attributed to unrelated GitHub user
  Resolved 💬 4 👍 2 #65710
• [Bug] Anthropic API Error: False positive cyber content block on legitimate local security review
  Resolved 💬 7 👍 1 #65596
• [BUG] Local `.mcpb` extension install fails on MSIX build with "Private dir leaf redirects (junction/substitute-name plant)" — no actual reparse point present
  Resolved 💬 9 #84199
• [BUG] WorktreeCreate hook stdin payload doesn't match documentation — Workflow runtime sends 'name', docs say 'worktree_name' + 'base_path' + 'source_ref'
  Resolved 💬 3 👍 2 #65646
• Agents view: navigating into an agent and back (←) leaves stale/garbled frame until terminal resize
  Resolved 💬 3 👍 2 #65593
• [Bug] Claude Cowork fails to start on macOS arm64: Missing Claude Code binary and SSL protocol error
  Resolved 💬 5 👍 1 #66470
• [BUG] AUP classifier false-positive (session poisoning) persists through 2.1.167 — benign git command blocked; all work impossible. Regression spans 2.1.165–2.1.167. Cluster: #65846 #61185
  Resolved 💬 8 #65866
• Tool calls intermittently emitted as literal text instead of being executed — silent task stalls on Opus 4.8 / Sonnet 4.6
  Resolved 💬 4 👍 1 #72180
• [BUG] Claude is not responding
  Resolved 💬 7 #69284
• Runaway output: model repeats fixed string "court placeholder" thousands of times, exhausting output tokens (long-running session, large context)
  Open 💬 7 #65823

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