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Claude Code 2.1.84 release notes
- Version
- 2.1.84
- Released
- Status
- Stable release
What's new in Claude Code 2.1.84
The official notes for Claude Code 2.1.84 list 40 changes: 8 new features, 14 fixes, 1 performance improvement and 17 other changes.
- 8 new features
- 14 fixes
- 1 performance improvement
- 17 other changes
Highlights
- new feature Added PowerShell tool for Windows as an opt-in preview. Learn more at https://code.claude.com/docs/en/tools-reference#powershell-tool
- new feature Added ANTHROPIC_DEFAULT_{OPUS,SONNET,HAIKU}_MODEL_SUPPORTS env vars to override effort/thinking capability detection for pinned default models for 3p (Bedrock, Vertex, Foundry), and _MODEL_NAME/_DESCRIPTION…
- new feature Added CLAUDE_STREAM_IDLE_TIMEOUT_MS env var to configure the streaming idle watchdog threshold (default 90s)
- new feature Added TaskCreated hook that fires when a task is created via TaskCreate
- new feature Added WorktreeCreate hook support for type: "http" — return the created worktree path via hookSpecificOutput.worktreePath in the response JSON
Our short summary: changes are counted and classified automatically from the official notes, and highlights are shortened. The complete, authoritative list is in the official release notes on GitHub.
Full release notes on GitHub (Claude Code 2.1.84)
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