Claude Code 2.1.283 release notes

Version

2.1.283

Released

25 September 2026

Status

Stable release

What's new in Claude Code 2.1.283

The official notes for Claude Code 2.1.283 list 94 changes: 9 new features, 36 fixes, 2 performance improvements, 1 security change and 46 other changes.

• 9 new features
• 36 fixes
• 2 performance improvements
• 1 security change
• 46 other changes

Highlights

• security change Fixed sandboxed git asking credential helpers to store the sandbox proxy's login, which printed "failed to store"
• new feature Added x-claude-code-prompt-id to the gateway hint headers so LLM gateways can group the requests that serve one user prompt; opt…
• new feature Added availableModelsMatch managed setting: with "exact", an availableModels entry allows only the model version it names, so new releases stay…
• new feature Added deniedModels managed setting to block specific models, even when availableModels allows them
• new feature Added MCP tool, WebFetch and WebSearch outputs to the tool.output OpenTelemetry span event when OTEL_LOG_TOOL_CONTENT=1

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 2.1.283)

All Claude Code release notes · All releases

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