---
title: "v1.4.0-prerelease3"
description: "v1.4.0-prerelease3 changelog - 2026-01-02"
---
<Tabs>
  <Tab title="NPX">
    ```bash
    npx -y @maximhq/bifrost --transport-version v1.4.0-prerelease3
    ```
  </Tab>
  <Tab title="Docker">
    ```bash
    docker pull maximhq/bifrost:v1.4.0-prerelease3
    docker run -p 8080:8080 maximhq/bifrost:v1.4.0-prerelease3
    ```
  </Tab>
</Tabs>

<Update label="Bifrost(HTTP)" description="1.4.0-prerelease3">
- chore: added max_tokens -> max_completion_tokens mapping for chat completions
- fix: empty string handling in Anthropic provider to prevent sending empty content blocks in chat requests
- fix: Gemini/Vertex tool conversion to append all function declarations to a single Tool object
- feat: added Azure Entra ID (Service Principal) authentication support to the Azure provider
- fix: tracing flow overriding request id which resulted in breaking streaming responses

</Update>
<Update label="Core" description="1.3.2">
fix: empty string handling in Anthropic provider to prevent sending empty content blocks in chat requests
fix: Gemini/Vertex tool conversion to append all function declarations to a single Tool object
feat: added Azure Entra ID (Service Principal) authentication support to the Azure provider

</Update>
<Update label="Framework" description="1.2.2">
fix: fixed tracer overriding the requestId flows
chore: upgrades core to 1.3.2

</Update>
<Update label="governance" description="1.4.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>
<Update label="jsonparser" description="1.4.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>
<Update label="logging" description="1.4.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>
<Update label="maxim" description="1.5.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>
<Update label="mocker" description="1.4.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>
<Update label="otel" description="1.1.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>
<Update label="semantic_cache" description="1.4.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>
<Update label="telemetry" description="1.4.2">
- chore: upgrade core to 1.3.2 and framework to 1.2.2

</Update>