Bifrost HTTP Transport Release v1.6.5
✨ Features
- Wafer AI Provider - Added Wafer AI as a supported provider
- Async Webhooks - New webhook delivery system for async jobs: configurable webhook endpoints (config.json, admin API, and UI), SSRF-safe delivery dispatcher with retries, delivery history with server-side pagination/search/filtering, and inference
request_idpropagation through async jobs and webhook payloads; failed jobs now inlineerror/error_omittedfields - Reasoning Token Tracking - Anthropic extended-thinking tokens are now tracked as
ReasoningTokensacross chat, responses, and passthrough - Retain Content Toggle - New toggle to always retain request/response content in object storage regardless of retention cleanup
- Throughput Metrics - Tokens/sec throughput histogram endpoints, dashboard metrics, and throughput in model rankings and trend data
- MCP Metrics - MCP metrics exported via OTEL and the telemetry (Prometheus) plugin, plus a
resourceparameter on the MCP OAuth handshake - Routing Rule Validation - Routing CEL expressions and
scope_idreferences are now validated at write time in create/update handlers - Network Config - Configurable keep-alive duration in network config
- Object Storage Archival - Added
archiveInterval,archiveGracePeriod, andarchiveMaxObjectBytessettings - Connector User Email Export - Connectors can now export user emails
- Logs UI - Server fallback model shown in logs, content-disabled message on the logs UI, persisted page-size preference, and
prompt_tokens/completion_tokensin search stats
🐞 Fixed
- Anthropic Fallbacks - Fixed fallback handling and refusal responses on the Anthropic surface, and billing now attributes usage to the fallback model actually served
- Bedrock Reasoning - Fixed double emission of reasoning content on Bedrock streams
- Fallback Model Names - Made
RefineModelForProvideridempotent so fallback routing no longer truncates model names (fixes Groq/Replicate/Parasail prefix handling) - OpenAI Image Blocks -
input_imageblocks now defaultdetailtoauto, fixing strict downstream validators such as vLLM (thanks @AdityaPainuli!) - Streaming Responses Surface - Completed visible thinking items, completed Cohere terminal events with the output array, fixed reasoning item streaming in the mux, and handled line-by-line errors in streaming
- Azure Structured Output - Structured output format is converted to a tool for Azure in the Anthropic integration; unsupported reasoning summary values are dropped for the Azure model router
- DeepSeek and SGLang - Anthropic-compatible APIs supported via key-level setting for SGLang and used for DeepSeek chat/responses; count-tokens handling added for both
- vLLM - Moved vLLM to the native Responses API
- Fireworks - Added support for Anthropic APIs in Fireworks
- Mistral OCR - Raw request capture and log storage enabled for Mistral OCR requests
- Rolling Deploy Safety - Materialized-view read path is gated on a shape check to prevent "column does not exist" errors during rolling deploys
- MCP Tool Sync - Out-of-range
tool_sync_intervalminutes are rejected to prevent nanosecond-scale sync loops - Routing Rules - Unresolved virtual keys are excluded from the scope ID set and empty routing rule fields are normalized
- Pricing Fallback - Chat and Responses pricing fallback now works bidirectionally
- OTEL Content Attributes - OTEL now uses the central method for content attribute checks
🐙 Closed GitHub Issues
- #5074 - Fallback routing model selection is truncating model names
- #5108 - Bedrock Converse: reasoning_config/thinking silently dropped on cross-provider translation, fallbacks lose extended thinking
- #5308 - Responses API image blocks missing required "detail" field when converted from non-OpenAI providers
Installation
Docker
docker run -p 8080:8080 maximhq/bifrost:v1.6.5Binary Download
npx @maximhq/bifrost --transport-version v1.6.5Docker Images
maximhq/bifrost:v1.6.5- This specific versionmaximhq/bifrost:latest- Latest version (updated with this release)
This release was automatically created with dependencies: core v1.7.3, framework v1.5.3. All plugins have been validated and updated.