You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.260,
ImprovementsSection of the release
When HIPAA compliance mode is active, any anthropic-beta header set via ANTHROPIC_CUSTOM_HEADERS is now dropped, with a debug log noting that experimental betas are disabled by org policy. The same compliance gate now also forces the 1M-context beta detection to always return false, and the SDK's beta-header resolution logic gained a similar case that drops all experimental beta headers and logs when the org-compliance gate is active, distinct from the existing per-header filtering.
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.
Added sinceA small documentation edit on Configure server-managed settings touched a line naming ANTHROPIC_CUSTOM_HEADERS after this was published.Whether [`ANTHROPIC_CUSTOM_HEADERS`](/docs/en/env-vars#variables) needs approval also depends on the delivered value. Headers that only tag requests, such as `Accept-Language`, apply without the dialog. A line that names a credential, an o…server-managed-settingssee the edit
Confirmed sinceAnthropic's documentation has since written up ANTHROPIC_CUSTOM_HEADERS, on Connect Claude Code to an LLM gateway.* **Amazon Bedrock, Google Cloud's Agent Platform, or Claude Platform on AWS**: add `ANTHROPIC_AUTH_TOKEN` after the block. Claude Code sends it to the gateway as an `Authorization: Bearer` header. For a credential in a different scheme or…llm-gateway-connectsee the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up ANTHROPIC_CUSTOM_HEADERS, on Connect Claude Code to an LLM gateway.