Claude Code v2.1.16

Released Jan 22, 2026 (7 months ago).

"References this build" means the issue body mentions running 2.1.16 (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 v2.1.16

Ranked by community engagement (reactions and comments).

• [Bug] Anthropic API Error: Internal server error (500)
  Resolved 💬 14 👍 12 #20180
• Performance regression after v2.1.16
  Resolved 💬 3 👍 4 #22383
• [BUG] MCP Server Timeout Configuration Ignored in Streamable SSE HTTP Connections
  Resolved 💬 6 👍 2 #20335
• [BUG] API Error: 500
  Resolved 💬 6 👍 2 #20182
• Sessions hang indefinitely in Metamorphosing state with 0 tokens
  Resolved 💬 3 👍 2 #26157
• Tasks orphaned when 'clear context' creates new session in plan mode
  Resolved 💬 6 👍 1 #20797
• [Bug] Anthropic API Error: Internal Server Error (500)
  Resolved 💬 5 👍 1 #20178
• [BUG] Multi-line bash commands are fragmented when saved to settings.local.json
  Resolved 💬 3 👍 1 #22409
• [BUG] VSCode extension keyboard shortcut "Toggle Claude Code" doesn't toggle
  Resolved 💬 3 👍 1 #20162
• [Bug] Anthropic API Error: Internal Server Error (500)
  Resolved 💬 5 #20186
• [BUG] Error: Claude Code process terminated by signal SIGTRAP
  Resolved 💬 4 #20312
• [BUG] Status bar shows different token count than /context command (22k vs 24k)
  Resolved 💬 4 #20165
• [BUG] Can't share feedback from Claude desktop and asked to share feedback about this error
  Resolved 💬 3 #57461
• [Bug] Anthropic API Error: Could not process image (400)
  Resolved 💬 3 #25343
• [Feature Request] Add XDG Base Directory Specification support for config management
  Resolved 💬 3 #21302
• [BUG] `claude` command unavailable after npm auto-update until `hash -r` is run (shell hash table caching)
  Resolved 💬 3 #20361
• [Bug] Image paste via Ctrl-V not working on macOS
  Resolved 💬 3 #20353
• [BUG] Inconsistent URL patterns in platform.claude.com API reference documentation
  Resolved 💬 2 #20173

Changelog