> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getbifrost.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# v1.4.19

> v1.4.19 changelog - 2026-03-31

<Tabs>
  <Tab title="NPX">
    ```bash theme={null}
    npx -y @maximhq/bifrost --transport-version v1.4.19
    ```
  </Tab>

  <Tab title="Docker">
    ```bash theme={null}
    docker pull maximhq/bifrost:v1.4.19
    docker run -p 8080:8080 maximhq/bifrost:v1.4.19
    ```
  </Tab>
</Tabs>

<Update label="Bifrost(HTTP)" description="1.4.19">
  ## ✨ Features

  * **Model Details API** - Added /api/models/details endpoint for model capability metadata
  * **Anthropic Beta Headers** - Support for Anthropic beta feature headers in requests

  ## 🐞 Fixed

  * **Reasoning Content Leak** - Prevented reasoning text from leaking into Gemini response content
  * **Timeout Status Code** - Fixed timeout status code handling across all providers
  * **Cross-Provider Cache** - Preserved cached provider metadata on cross-provider cache hits
  * **Governance Virtual Keys** - Populated customer virtual\_keys in governance APIs
  * **List Models Integration** - Removed default provider override on list models request in integrations
  * **Client Settings Headers** - Fixed Client settings UI to accept \* as allowed headers

  ## 🔧 Maintenance

  * **FIPS Docker Image** - Switched to FIPS-compliant base image for Docker builds
  * **Security Hardening** - Applied StepSecurity best practices to CI/CD pipeline (thanks [@step-security-bot](https://github.com/step-security-bot)!)
  * **Snyk Fixes** - Addressed Snyk vulnerability findings in Docker configuration
</Update>

<Update label="Core" description="1.4.16">
  * fix: fixed timeout status code handling across all providers
  * fix: preserve cached provider metadata on cross-provider cache hits
  * fix: prevent reasoning text from leaking into Gemini response content
  * feat: added Anthropic beta headers support
</Update>

<Update label="Framework" description="1.2.35">
  * feat: added /api/models/details endpoint with model capability metadata
  * fix: populate customer virtual\_keys in governance APIs
  * fix: enterprise model catalog sync improvements
</Update>

<Update label="governance" description="1.4.35">
  * fix: populate customer virtual\_keys in governance APIs
</Update>

<Update label="jsonparser" description="1.4.34">
  * chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>

<Update label="litellmcompat" description="0.0.24">
  * chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>

<Update label="logging" description="1.4.35">
  * chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>

<Update label="maxim" description="1.5.34">
  * chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>

<Update label="mocker" description="1.4.34">
  * chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>

<Update label="otel" description="1.1.34">
  * chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>

<Update label="semanticcache" description="1.4.33">
  * fix: preserve cached provider metadata on cross-provider cache hits
</Update>

<Update label="telemetry" description="1.4.35">
  * chore: upgraded core to v1.4.16 and framework to v1.2.35
</Update>