> ## 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.

# v1.4.11

> v1.4.11 changelog - 2026-03-06

<Tabs>
  <Tab title="NPX">
    ```bash theme={null}
    npx -y @maximhq/bifrost --transport-version v1.4.11
    ```
  </Tab>

  <Tab title="Docker">
    ```bash theme={null}
    docker pull maximhq/bifrost:v1.4.11
    docker run -p 8080:8080 maximhq/bifrost:v1.4.11
    ```
  </Tab>
</Tabs>

<Update label="Bifrost(HTTP)" description="1.4.11">
  ## ✨ Features

  * **Anthropic Cache Control** - Added cache-control support for Anthropic tool calls
  * **Maxim Attachments** - Added attachment support to Maxim plugin
  * **Helm Graceful Shutdown** - Added graceful shutdown and HPA stabilization for streaming connections (thanks [@Edward-Upton](https://github.com/Edward-Upton)!)
  * **Logstore Sonic Serialization** - Replaced encoding/json with sonic for logstore serialization (thanks [@davidrudduck](https://github.com/davidrudduck)!)

  <Danger>
    **Breaking change**: If authentication is enabled, the `/metrics` endpoint now requires bearer authentication in the request header. This change was made based on recent pentest feedback.
  </Danger>

  <Danger>
    **Breaking change**: We have enforced all security headers to Bifrost based on recent pentest feedback. If you face any issues please create an issue on Github or reach out to us on Discord.
  </Danger>

  ## 🐞 Fixed

  * **Codex Compatibility** - Fixed fallback handling and request decompression for Codex compatibility
  * **Anthropic SSE Streaming** - Use NewSSEScanner for Responses API streaming (thanks [@Edward-Upton](https://github.com/Edward-Upton)!)
  * **Audio Filename Preservation** - Preserve original audio filename in transcription requests
  * **Proxy Override** - Fixed proxy override handling
  * **Raw Request Serialization** - Fixed raw request serialization in SSE events
  * **Key List Models** - Fixed key list models serialization
  * **Async Job Recovery** - Fixed async jobs stuck in "processing" on marshal failure
  * **Valkey/Redis Vector Store** - Improved Valkey Search compatibility and correctness in Redis vector store
  * **Semanticcache Nil Check** - Added nil check on message Content before accessing fields (thanks [@Javtor](https://github.com/Javtor)!)
  * **Dashboard Overflow** - Resolved dashboard and provider config overflow regressions (thanks [@kunish](https://github.com/kunish)!)
  * **Config Schema Alignment** - Fixed config schema and added test to verify Go model alignment
  * **Security Patches** - Applied security patches including default anthropic error type fix
  * **Prevent panic** in key selection when all keys have zero weight
  * **Preserve original** audio filename in transcription requests
  * **Async jobs** stuck in "processing" on marshal failure now correctly transition to "failed"
  * **Prevent panic** in key selection when all keys have zero weight
  * **Preserve original** audio filename in transcription requests
  * **Async jobs** stuck in "processing" on marshal failure now correctly transition to "failed"
  * **Adds attachment** support in Maxim plugin
</Update>

<Update label="Core" description="1.4.7">
  * feat: added cache-control support for anthropic tool calls
  * fix: Codex compatibility issues in fallback handling and request decompression
  * fix: use NewSSEScanner for Anthropic Responses API streaming (thanks [@Edward-Upton](https://github.com/Edward-Upton)!)
  * fix: preserve original audio filename in transcription requests
  * fix: proxy override handling
  * fix: raw request serialization in SSE events
  * fix: key list models serialization
  * fix: security patches including default anthropic error type
  * fix: prevent panic in WeightedRandomKeySelector when all keys have zero weight by falling back to uniform random selection
  * feat: add Filename field to TranscriptionInput schema to carry original filename through the request pipeline
  * fix: add AudioFilenameFromBytes utility to detect audio format from file headers with mp3 fallback
</Update>

<Update label="Framework" description="1.2.26">
  * fix: improve Valkey Search compatibility and correctness in Redis vector store
  * fix: async jobs stuck in processing on marshal failure
  * perf: replace encoding/json with sonic in logstore serialization (thanks [@davidrudduck](https://github.com/davidrudduck)!)
  * chore: upgraded core to v1.4.7
</Update>

<Update label="governance" description="1.4.27">
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="jsonparser" description="1.4.26">
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="litellmcompat" description="0.0.16">
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="logging" description="1.4.26">
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="maxim" description="1.5.25">
  * feat: added attachment support
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="mocker" description="1.4.26">
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="otel" description="1.1.26">
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="semanticcache" description="1.4.25">
  * fix: nil check on message Content before accessing fields (thanks [@Javtor](https://github.com/Javtor)!)
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>

<Update label="telemetry" description="1.4.27">
  * chore: upgraded core to v1.4.7 and framework to v1.2.26
</Update>