Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.315,
Internal ChangesSection of the release
What
Claude Code can report how long each part of a turn takes before its first request reaches the model. That breakdown now includes four more phases:
conversation append
init frame send
loop entry
request announcements
Before, this time was counted under "other", and older versions still count it there. This timing report is tied to the CLAUDE_CODE_EMIT_STARTUP_TIMING environment variable.
Why
It gives a finer picture of where time goes when a remote session starts up.
