Claude Code now prefetches your custom OpenTelemetry header helper for HTTP exporters and warns you if it fails
What
- For OpenTelemetry (OTel, a standard for exporting telemetry data) exporters using HTTP-based protocols (
http/jsonorhttp/protobuf), a user-configuredotelHeadersHelperis now prefetched once per process to prime its cache, instead of being fetched lazily on the first request. - If
otelHeadersHelperfails, Claude Code now shows a dismissible warning notification (visible for 30 seconds) telling you that telemetry is not being exported and to check/statusfor details.
Why
Prefetching avoids a delay on the first telemetry request, and the new warning makes it clear when your custom header helper is broken instead of silently dropping telemetry exports.
tengu_quirky_teacup Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.275: on
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.
Read once, for one account on one subscription tier, against v2.1.275. It isn't a statement about your account. What a flag value here can and cannot tell you
* Fixed `/status` not showing the `apiKeyHelper` failure that its own error banner told you to checksee the edit
* Fixed the Code tab's `/status` card showing a placeholder account; it now shows your signed-in identity and the deployment name.see the edit
When an admin source sets `allowManagedMcpServersOnly` or an `allowedMcpServers` list and that value isn't the one in force, `/status` and `claude doctor` name that source and key.see the edit
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
For a response from the Claude API billed at the 1.1× [data residency rate](https://platform.claude.com/docs/en/about-claude/pricing#data-residency-pricing), Claude Code multiplies the list price of that response's tokens by 1.1 in the ses…costs see the edit
* Added an `Auto mode server` row to `/status` showing whether this session's auto mode classifier runs on the serverchangelog see the edit
/status on Claude Code changelog
Added the signed-in account to Claude apps gateway sign-in: when the gateway names it, you confirm it before the credential is saved, and…
New in this build: tengu_quirky_teacup