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A new CLAUDE_CODE_EMIT_STARTUP_TIMING environment variable turns on startup-timing telemetry outside remote sessions
What
Startup-timing telemetry, which used to only get collected in remote or CCR mode, now also fires when the new CLAUDE_CODE_EMIT_STARTUP_TIMING environment variable is set, even in a regular local session.
Why
This lets someone measure Claude Code's startup timing outside of remote sessions, useful for diagnosing slow starts without needing to run remotely.
Names in the bundleCLAUDE_CODE_EMIT_STARTUP_TIMING
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The name it cites is new in this build
New in this build: CLAUDE_CODE_EMIT_STARTUP_TIMING