transports/v1.5.15

maximhq/bifrosttransports/v1.5.15Jun 16, 2026by akshaydeo

AI Summary

Bifrost HTTP transport release adding profiling capabilities and fixing raw request handling.

Key Highlights

Adds optional pprof Profiling Server with tunable sampling rates
Adds Anthropic cache diagnostics to surface divergence points
Fixes GenAI raw request passthrough for Gemini and Vertex
Preserves tool-call metadata across streaming and non-streaming

New Features

pprof Profiling Server
Anthropic Cache Diagnostics

Full Release Notes

## Bifrost HTTP Transport Release v1.5.15

## ✨ Features

- **pprof Profiling Server** - Optional runtime profiling server gated by `BIFROST_PPROF_PORT`, with env-tunable block/mutex sampling rates and graceful shutdown alongside the main server.
- **Anthropic Cache Diagnostics** - Surface Anthropic's prompt-cache diagnostics beta (`cache-diagnosis-2026-04-07`): responses now expose the first cache-prefix divergence point, so you can see exactly why a prompt cache missed.

## 🐞 Fixed

- **GenAI Raw Request Passthrough** - Native Vertex/Gemini batch and request bodies now follow the `x-model-provider` header and pass through verbatim only when Gemini or Vertex is explicitly selected, preventing a raw body from reaching a mismatched provider.
- **Tool Call Metadata Preservation** - `extra_content` on assistant tool calls (e.g. Gemini `thought_signature`) is now preserved across both streaming and non-streaming responses (thanks [@nghodkicisco](https://github.com/nghodkicisco)!).

### Installation

#### Docker
```bash
docker run -p 8080:8080 maximhq/bifrost:v1.5.15
```

#### Binary Download
```bash
npx @maximhq/bifrost --transport-version v1.5.15
```

### Docker Images
- **`maximhq/bifrost:v1.5.15`** - This specific version
- **`maximhq/bifrost:latest`** - Latest version (updated with this release)

---
_This release was automatically created with dependencies: core `v1.5.21`, framework `v1.3.21`. All plugins have been validated and updated._