Bifrost HTTP Transport Release v1.6.11
✨ Features
- URL Sources Inlined for AWS-Hosted Claude - URL-sourced images and documents are fetched and inlined on the native-Anthropic path, since Bedrock Mantle rejects
{"source":{"type":"url"}}. Fetches go through the SSRF-safe dialer with a size cap, and a failed fetch aborts the request rather than silently dropping an attachment. - Quarterly Budgets for Customers - Quarterly budgets are now supported by the customer entity, and by virtual key provider configs.
- Fiscal Year Start in Budget Labels - Budget UI labels surface the configured fiscal year start through a new
fiscalQuarterNotehelper, andQuarterStartSelectis relaid out to a horizontal label and preview row with a right-aligned select. - Flexible Entity Selector Width - The entity selector accepts
contentClassName, so callers can widen or constrain its dropdown instead of being pinned to the default width.
🐞 Fixed
- WebSocket Writes After Disconnect - A broadcast racing a client disconnect could panic on a nil connection or deliver to an unrelated client's socket, because fasthttp recycles the hijacked connection as soon as the upgrade handler returns. Clients now carry an explicit closed flag and a close that blocks until in-flight writes finish.
- Realtime Heartbeat Panic on Disconnect -
stopHeartbeatwaits for the heartbeat goroutine to exit before the upgrade handler returns. A ping already insideWriteMessagewould dereference a recycled connection, and unlike the broadcast path there is no recover, so the panic took down the whole process. - Stop Sequences Dropped for Nova and Titan - Bedrock's Converse camelCase
stopSequencesnow maps to the neutralstopparameter alongside Anthropic'sstop_sequences. 81 catalog rows were silently losingstop, so the provider ran toend_turninstead of stopping. - Reasoning Replay Rejected on Chat-Shaped Requests -
/v1/chat/completionsand/v1/messagescarry replayed reasoning onreasoning_details, but the fail-soft strip only handled Responses-shaped items. A router that switched models mid-conversation returned "messages.N.content.0: Invalidsignatureinthinkingblock" to the client instead of retrying without the signature. - Thinking Signatures on Responses Content Blocks - Signatures are stripped off content blocks, not just
encrypted_contenton the reasoning item. A message could need the strip withencrypted_contentalready absent, and only reasoning items are dropped when nothing survives, so an ordinary message keeps its own content. - Reasoning Content Rejected by OpenAI and Azure Models -
reasoning.contentis no longer sent to non-gpt-oss reasoning models, which cap the array at zero entries and reject a populated one with "Invalid 'input[N].content': array too long". Replayed Anthropic thinking blocks were hitting this;summaryandencrypted_contentalready carry everything those models accept. - Reasoning Effort Cleared for Current Grok Models - The rule substring-matched "grok-3-mini", so
grok-4.5,grok-4.6andgrok-4.20-multi-agentsilently lostreasoning_effortand answered at the wrong reasoning depth, cost and latency. Replaced with an exact-match deny-list that normalizes routing prefixes,-latestand xAI's 4-digit date suffixes. - xhigh Reasoning Effort Downgraded for Grok - The shared OpenAI-dialect normalizer downgraded
xhightohighbefore the xAI compat pass ran, losing the value even with the deny-list corrected.grok-4.5still downgrades on purpose, matching xAI's documented upstream coercion. - Empty Structured-Output Streams -
content_part.added,output_text.delta,output_text.doneandcontent_part.doneare emitted when a tool-based structured-output call is reassembled into a message on the Responses streaming path. Onlyoutput_item.addedanddonewere emitted, so consumers reading incremental events saw a stream with no text while tokens were billed. Affects Vertex, Bedrock Mantle and Azure Claude. - HTTP 529 Rotating Credentials - Anthropic's
overloaded_erroris treated as a transient server error. It reflects capacity across all callers rather than anything about the credential, so the same key is retried with backoff instead of being rotated away.
🗄️ Database Migrations
- No new database migrations in this release.
Installation
Docker
docker run -p 8080:8080 maximhq/bifrost:v1.6.11Binary Download
npx @maximhq/bifrost --transport-version v1.6.11Docker Images
maximhq/bifrost:v1.6.11- This specific versionmaximhq/bifrost:latest- Latest version (updated with this release)
This release was automatically created with dependencies: core v1.7.10, framework v1.5.10. All plugins have been validated and updated.