---
title: "v1.3.9"
description: "v1.3.9 changelog"
---

<Update label="Bifrost Enterprise" description="v1.3.9">

## Changelog

This release upgrades the base OSS version from v1.4.11 to v1.4.12, bringing a full-featured prompt repository with RBAC, large payload optimization, WebSocket-based responses API, Anthropic passthrough, session stickiness, and a unified pricing engine. On the enterprise side, this release adds KV store gossip protocol support, RBAC for the prompt repository, and build/deployment improvements.

## ✨ Features

- **Prompt Repository** — Full prompt management system with folders, prompts, versions, sessions, playground, versioning, deployment features, and Jinja2 variable support
- **Prompt Repository RBAC** — Added role-based access control for prompt repository operations
- **Large Payload Optimization** — End-to-end large payload support with streaming primitives, detection hooks, passthrough eligibility, provider support, plugin awareness, and enterprise settings UI
- **WebSocket Responses aAPI** — Added WebSocket transport for OpenAI responses API and realtime API support
- **Anthropic Passthrough** — Added native Anthropic passthrough endpoint
- **KV Store Gossip Protocol** — Added gossip-based KV store for distributed state synchronization
- **Session Stickiness** — Added session stickiness in key selection for consistent routing
- **Model Parameters API** — Added model parameters table and API endpoint with in-memory caching
- **Virtual Key Limit Resets** — Added virtual key limit reset functionality
- **Pricing Engine Refactor** — Unified cost calculation with quality-based image and video pricing
- **Image Configuration** — Added size/aspect ratio config for Gemini and size-to-resolution conversion for Replicate
- **Streaming Request Decompression** — Threshold-gated streaming decompression with pooled readers
- **Raw Request/Response Storage** — Allow storing raw request/response without returning them to clients
- **Weighted Routing Targets** — Added weighted routing targets for probabilistic routing rules with key selection support
- **API Key Selection by ID** — Added API key selection by ID with priority over name selection
- **TLS Configuration** — Added TLS configuration support for all providers and TLS termination inside Bifrost server
- **K8s Deployment Workflow** — Added workflow to deploy Bifrost Enterprise to Maxim K8s cluster

## 🐞 Fixed

- **Deterministic Tool Schema** — Fixed deterministic tool schema serialization for Anthropic prompt caching
- **CORS Wildcard** — Fixed CORS issue with allowing * origin
- **Bedrock toolChoice** — Fixed toolChoice silently dropped on Bedrock /converse and /converse-stream endpoints
- **Count Tokens Passthrough** — Fixed request body passthrough for count tokens endpoint for Anthropic and Vertex
- **Chat Finish Reason** — Map chat finish_reason to responses status and preserve terminal stream semantics
- **Tool Call Indexes** — Fixed streaming tool call indices for parallel tool calls in chat completions stream
- **Video Pricing** — Fixed video pricing calculation
- **SQLite Migration** — Prevented CASCADE deletion during routing targets migration
- **Log Serialization** — Reduced logstore serialization overhead and batch cost updates
- **Log List Queries** — Avoid loading raw_request/raw_response in log list queries
- **MCP Reconnection** — Improved MCP client reconnection with exponential backoff and connection timeout
- **Create Manifest Flow** — Fixed create manifest flow
- **Build Pipeline** — Fixed builds skipping latest changes
- **BigQuery Import** — Fixed import for codeEditor in bigqueryFormFragment.tsx
- **OSS Build Integration** — Support latest-main OSS build with go.mod replace directives

## 📀 Base OSS version

`transports/v1.4.12`

## 🔌 If you are compiling plugin against this release - use following deps

```
github.com/maximhq/bifrost/core v1.4.8
github.com/maximhq/bifrost/framework v1.2.27
github.com/maximhq/bifrost/plugins/governance v1.4.28
github.com/maximhq/bifrost/plugins/logging v1.4.28
github.com/maximhq/bifrost/transports v1.4.12
```

</Update>
