Claude Code v2.1.42
Released Feb 13, 2026 (6 months ago).
214 issues reference this build
6 still open
208 resolved (97%)
"References this build" means the issue body mentions running 2.1.42 (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 v2.1.42
Ranked by community engagement (reactions and comments).
- [BUG] Claude Max plan session limits exhausted abnormally fast since March 23, 2026 (CLI usage)
- Read tool sends requests exceeding 20MB API limit without pre-checking payload size
- [BUG] Claude Code hangs indefinitely when API streaming connection stalls (no read timeout)
- [Bug] System events delivered as user-role messages cause model to fabricate user consent and act on it
- [BUG] Sandbox `denyWithinAllow` list omits `.git/` prefix from git-internal file paths
- [Bug] Anthropic API Error: Rate limit reached despite low session usage on Max 20x plan
- [BUG]
- feat: expose rate limit data in statusline JSON
- claude-in-chrome MCP server loses WebSocket bridge connection and can't recover
- [BUG] panic(main thread): Segmentation fault at address 0x4469BAB7D20
- [BUG] Claude Code is completely non-functional on Windows systems where the username contains a period (common in enterprise Active Directory environments)
- [Bug] file_upload tool not exposed to Claude Code CLI from Chrome extension
- [BUG] VSCode extension stores user messages as per-character content blocks, causing premature 'Prompt is too long'
- Cannot buy API credits
- canUseTool callback not invoked for background subagent tool calls in default permission mode
- C:/Program Files/Git/rename does not persist session name — --resume <name> never finds it
- [BUG] Claude code is injecting messages that aren't from me into the terminal and acting on them as if I reported them.
- [BUG] Submitted prompt is not processed when switching away from session and returning
- Native installer deletes working npm install but fails to create ~/.local/bin/claude launcher
- Context compaction corrupts tool_use blocks — parameters merged into name field causing 400 API error
- [BUG] Stuck Claude Code instances, I can not stop or remove them
- SSH remote passes local plugin paths and MCP configs to remote server, causing hang
- [Bug] Context limit error at 15% usage with 51% free space available
- [Bug] Context Compaction fails when agent reaches context limit
- [BUG] Context limit reached - Autocompact spiral background agents return results simultaneously
- Models constantly hanging since Claude 4.6 launch
- I appreciate the feedback, but I need the actual bug report or issue details to generate a GitHub issue title. Could you please provide: 1. A description of the problem you encountered 2. Any error messages or unexpected behavior 3. Steps to reproduce the
- Autocompact fails to free sufficient space, leaves session stuck at context limit
- [BUG] Copying multi-line text creates extra spaces rendering links unusable
- [Bug] Anthropic API Error: Cannot modify thinking blocks in assistant message
Changelog
What's changed
- Fixed /resume showing interrupt messages as session titles
- Fixed Opus 4.6 launch announcement showing for Bedrock/Vertex/Foundry users
- Improved error message for many-image dimension limit errors with /compact suggestion