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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.271 ·

Telemetry: isClaudeAiAuth added directly to env context payload

Telemetry now computes isClaudeAiAuth itself for each event instead of reading it from stored session state

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaTelemetrywhat it touches
KindInternal Changesin v2.1.271,
Under the hood

Telemetry now computes isClaudeAiAuth itself for each event instead of reading it from stored session state

What

The code that builds telemetry payloads now computes the isClaudeAiAuth value directly at the point each event is sent, rather than reading it from previously stored session state.

Why

This is an internal telemetry accuracy change: computing the value fresh each time should keep it from going stale if the underlying authentication state changes during a session.

See this entry in the whole of v2.1.271 →

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