Claude Code v2.1.104

Released Apr 13, 2026 (4 months ago).

"References this build" means the issue body mentions running 2.1.104 (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 v2.1.104

Ranked by community engagement (reactions and comments).

• [BUG] slack_read_channel / slack_read_thread drop message attachments and blocks
  Open 💬 1 👍 30 #51720
• [Bug] Anthropic API Error: Internal Server Error (500)
  Resolved 💬 7 👍 19 #47440
• API Error: 500 {"type":"error","error":{"type":"api_error","...
  Resolved 💬 14 👍 13 #47437
• [BUG] Output styles with YAML frontmatter not injected into system prompt
  Open 💬 38 👍 4 #47482
• Linear MCP OAuth fails with "Invalid client" — metadata-URL clientId + ephemeral loopback port
  Resolved 💬 17 👍 11 #47185
• [Bug] Anthropic API Error: Internal Server Error (500)
  Resolved 💬 12 👍 10 #47428
• [BUG] Usage credits required for 1M context - Pro plan blocked despite 17% usage
  Open 💬 21 👍 6 #65514
• [BUG] Extended thinking dropdown no longer expandable in VSCode extension (Opus 4.7)
  Resolved 💬 4 👍 8 #51131
• [BUG] API Error: Content block is not a text block
  Resolved 💬 10 👍 6 #47375
• [Feature Request] Claude Code Desktop application for Linux
  Resolved 💬 4 👍 8 #47316
• MCP tool results should support the native Edit tool's diff rendering
  Resolved 💬 4 👍 8 #47151
• [BUG] Content area clipped/hidden when sidebar is open
  Resolved 💬 11 👍 5 #48532
• [BUG] Usage limits gone crazy
  Resolved 💬 11 👍 5 #47587
• [BUG]TUI banner duplication stacking repeatedly on macOS Terminal.app (v2.1.104) — blocking daily work
  Resolved 💬 12 👍 4 #46983
• [Bug] Anthropic API Error: Internal Server Error (500)
  Resolved 💬 5 👍 6 #47442
• [BUG] CLAUDE_CODE_ALWAYS_ENABLE_EFFORT=1 bypasses model capability checks, breaks Haiku subagents
  Resolved 💬 5 👍 6 #47175
• [Bug] CLAUDE_CONFIG_DIR env var ignored; still loads ~/.claude/CLAUDE.md
  Resolved 💬 5 👍 6 #47056
• Claude Code renders the same banner multiple times in the terminal
  Resolved 💬 10 👍 4 #51410
• [MODEL] Keeps hanging and not executing code edits/writes and API Error (stream idle timeout - partial response recieved)
  Resolved 💬 13 👍 3 #46955
• [Bug] Anthropic API Error: Internal Server Error (500)
  Resolved 💬 3 👍 6 #47431
• [BUG] (Async) Subagents stopping early
  Resolved 💬 11 👍 3 #47936
• ⎿  API Error: 500 {"type":"error","error":{"type":"api_err...
  Resolved 💬 4 👍 5 #47429
• [BUG] Bug Report: Claude Code API 500 Internal Server Error
  Resolved 💬 3 👍 5 #47436
• [Bug] Anthropic API Error: Internal Server Error
  Resolved 💬 3 👍 5 #47426
• [Bug] Anthropic API Error: 500 Internal Server Error
  Resolved 💬 2 👍 5 #47462
• AskUserQuestion auto-completes with empty answers in v2.1.104 (regression from v2.1.101)
  Resolved 💬 5 👍 4 #47114
• Desktop app's bundled Claude Code 2.1.111 exits with code 1 immediately on prompt submission (macOS)
  Resolved 💬 7 👍 3 #52143
• [Bug] Anthropic API Error: HTTP 500 Internal Server Error
  Resolved 💬 4 👍 4 #47448
• [Bug] Intermittent API 500 error with version fetch/network failures and file read errors in Claude Code 2.1.104 on macOS
  Resolved 💬 4 👍 4 #47446
• API Error: 500 {"type":"error","error":{"type":"api_error","...
  Resolved 💬 4 👍 4 #47427