What
The usage data Claude Code records for each request to the model now includes two extra timing figures about its own overhead. It also reads a value from the server's response.
Why
This only affects usage reporting.
Request timing data now includes more of Claude Code's own overhead
Usage data about each request to the model now records extra timing figures about Claude Code's own overhead
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.285,
Internal ChangesSection of the release