---
title: "v1.3.53"
description: "v1.3.53 changelog - 2025-12-23"
---
<Tabs>
  <Tab title="NPX">
    ```bash
    npx -y @maximhq/bifrost --transport-version v1.3.53
    ```
  </Tab>
  <Tab title="Docker">
    ```bash
    docker pull maximhq/bifrost:v1.3.53
    docker run -p 8080:8080 maximhq/bifrost:v1.3.53
    ```
  </Tab>
</Tabs>

<Update label="Bifrost(HTTP)" description="1.3.53">
- fix: thought signature handling in anthropic converters
- fix: added support for the reasoning_max_tokens parameter in chat completions
- fix: reasoning effort calculation in Bedrock provider by using default max tokens when inference config max tokens is not provided.
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="Core" description="1.2.42">
- fix: thought signature handling in anthropic converters
- fix: added support for the reasoning_max_tokens parameter in chat completions
- fix: reasoning effort calculation in Bedrock provider by using default max tokens when inference config max tokens is not provided.

</Update>
<Update label="Framework" description="1.1.52">
- chore: bumped core to 1.2.42

</Update>
<Update label="governance" description="1.3.53">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="jsonparser" description="1.3.53">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="logging" description="1.3.53">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="maxim" description="1.4.53">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="mocker" description="1.3.52">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="otel" description="1.0.52">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="semantic_cache" description="1.3.52">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>
<Update label="telemetry" description="1.3.52">
- chore: bumped core to 1.2.42 and framework to 1.1.52

</Update>