---
title: "v1.4.0-prerelease2"
description: "v1.4.0-prerelease2 changelog - 2025-12-30"
---
<Tabs>
  <Tab title="NPX">
    ```bash
    npx -y @maximhq/bifrost --transport-version v1.4.0-prerelease2
    ```
  </Tab>
  <Tab title="Docker">
    ```bash
    docker pull maximhq/bifrost:v1.4.0-prerelease2
    docker run -p 8080:8080 maximhq/bifrost:v1.4.0-prerelease2
    ```
  </Tab>
</Tabs>

<Update label="Bifrost(HTTP)" description="1.4.0-prerelease2">
- fix: handling of nullable text fields in bedrock reasoning content
- fix: gemini tool conversion with array parameters
- fix: file name normalization in bedrock document blocks
- fix: plugin status sync using configuration name
- chore: upgrade core to 1.3.1 and framework to 1.2.1
- fix: adds parser for parent span id and root span parent to fix distributed tracing for datadog

</Update>
<Update label="Core" description="1.3.1">
- fix: handling of nullable text fields in bedrock reasoning content
- fix: gemini tool conversion with array parameters
- fix: file name normalization in bedrock document blocks
- fix: adds parser for parent span id and root span parent to fix distributed tracing for datadog

</Update>
<Update label="Framework" description="1.2.1">
- fix: adds parser for parent span id and root span parent to fix distributed tracing for datadog
- chore: upgrade core to 1.3.1

</Update>
<Update label="governance" description="1.4.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
<Update label="jsonparser" description="1.4.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
<Update label="logging" description="1.4.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
<Update label="maxim" description="1.5.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
<Update label="mocker" description="1.4.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
<Update label="otel" description="1.1.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
<Update label="semantic_cache" description="1.4.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
<Update label="telemetry" description="1.4.1">
- chore: upgrade core to 1.3.1 and framework to 1.2.1

</Update>
