> ## 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.

# v1.4.21

> v1.4.21 changelog - 2026-04-10

<Tabs>
  <Tab title="NPX">
    ```bash theme={null}
    npx -y @maximhq/bifrost --transport-version v1.4.21
    ```
  </Tab>

  <Tab title="Docker">
    ```bash theme={null}
    docker pull maximhq/bifrost:v1.4.21
    docker run -p 8080:8080 maximhq/bifrost:v1.4.21
    ```
  </Tab>
</Tabs>

<Update label="Bifrost(HTTP)" description="1.4.21">
  ## ✨ Features

  * **OCR Endpoint** - Add end-to-end support for /v1/ocr endpoint with Mistral OCR (thanks [@Vaibhav701161](https://github.com/Vaibhav701161)!)
  * **Azure Passthrough** - Add Azure passthrough support for native Azure API calls
  * **OpenRouter Embeddings** - Add embeddings support for OpenRouter provider (thanks [@dennypradipta](https://github.com/dennypradipta)!)
  * **Redis TLS & Cluster** - Add TLS and cluster mode support for Redis connections and fix valkey-search query syntax
  * **272k Token Pricing** - Add 272k token tier and priority tier support in pricing
  * **OAuth MCP Hints** - Add next-step hints to OAuth MCP client creation response

  ## 🐞 Fixed

  * **Pricing Sync Interval** - Correctly apply pricing\_sync\_interval and support env variables in pricing\_url (thanks [@Vaibhav701161](https://github.com/Vaibhav701161)!)
  * **OAuth Transient Failures** - Don't mark OAuth config expired on transient network failures
</Update>

<Update label="Core" description="1.4.18">
  * feat: add end-to-end support for /v1/ocr endpoint with Mistral OCR (thanks [@Vaibhav701161](https://github.com/Vaibhav701161)!)
  * feat: add Azure passthrough support
  * feat: add embeddings support for OpenRouter provider (thanks [@dennypradipta](https://github.com/dennypradipta)!)
</Update>

<Update label="Framework" description="1.2.37">
  * feat: add end-to-end support for /v1/ocr endpoint with Mistral OCR (thanks [@Vaibhav701161](https://github.com/Vaibhav701161)!)
  * feat: add 272k token tier and priority tier support in pricing
  * feat: add TLS and cluster mode support for Redis connections
  * fix: correctly apply pricing\_sync\_interval and support env variables in pricing\_url (thanks [@Vaibhav701161](https://github.com/Vaibhav701161)!)
  * fix: don't mark OAuth config expired on transient network failures
  * fix: valkey-search query syntax handling
</Update>

<Update label="governance" description="1.4.37">
  * chore: upgraded core to v1.4.18 and framework to v1.2.37
</Update>

<Update label="jsonparser" description="1.4.36">
  * chore: upgraded core to v1.4.18 and framework to v1.2.37
</Update>

<Update label="litellmcompat" description="0.0.26">
  * chore: upgraded core to v1.4.18 and framework to v1.2.37
</Update>

<Update label="logging" description="1.4.37">
  * feat: add OCR endpoint logging support
</Update>

<Update label="maxim" description="1.5.37">
  * chore: upgraded core to v1.4.18 and framework to v1.2.37
</Update>

<Update label="mocker" description="1.4.36">
  * chore: upgraded core to v1.4.18 and framework to v1.2.37
</Update>

<Update label="otel" description="1.1.36">
  * chore: upgraded core to v1.4.18 and framework to v1.2.37
</Update>

<Update label="semanticcache" description="1.4.35">
  * feat: add TLS and cluster mode support for Redis connections
  * fix: valkey-search query syntax handling
</Update>

<Update label="telemetry" description="1.4.37">
  * chore: upgraded core to v1.4.18 and framework to v1.2.37
</Update>