> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getbifrost.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# v1.3.9

> v1.3.9 changelog - 2026-03-16

<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>