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docs(release-notes): expand v1.83.7.rc.1 notes with missing PRs

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docs/my-website/release_notes/v1.83.7/index.md
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@ -27,6 +27,10 @@ authors:
title: Engineer, LiteLLM
url: https://github.com/harish876
image_url: https://github.com/harish876.png
- name: Sameer Kankute
title: Engineer, LiteLLM
url: https://github.com/Sameerlite
image_url: https://github.com/Sameerlite.png
hide_table_of_contents: false
---
@ -59,11 +63,11 @@ pip install litellm==1.83.7rc1
- **Anthropic Advisor Tool** — [Support for the new `advisor_20260301` tool type, enabling Anthropic's structured advisor capabilities](../../docs/completion/anthropic_advisor_tool)
- **MCP Per-User OAuth Token Storage** — [Store and reuse per-user OAuth tokens for interactive MCP flows — no repeated auth prompts](../../docs/mcp)
- **AWS GovCloud Bedrock Claude Sonnet 4.5** — Support for `claude-sonnet-4-5` in `us-gov-east-1` and `us-gov-west-1` regions with correct pricing and prompt caching
- **11 New Baseten Models** — MiniMax, Nvidia Nemotron, GLM, Kimi, DeepSeek and GPT-OSS models added to the Baseten catalog
- **MCP stdio RCE Fix** — [Blocked arbitrary command execution via stdio transport](../../docs/mcp)
- **Team Spend Logs** — Team members can now view team-wide spend logs directly from the UI with proper RBAC enforcement
- **File Content Streaming** — OpenAI file content endpoint now supports streaming responses
- **AWS GovCloud Bedrock Claude Sonnet 4.5** — Support for `claude-sonnet-4-5` in `us-gov-east-1` and `us-gov-west-1` with correct pricing, prompt caching, and GovCloud routing mode
- **Containers: Azure Routing + Managed IDs** — Azure container routing, managed container ID support, and delete response parsing for the Containers API
- **Team/Project Credential Overrides** — Override provider credentials per team or project via `model_config` metadata — no proxy restart needed
- **Ramp Built-In Callback** — Ramp is now a first-class built-in success callback
- **11 New Baseten Models** — MiniMax, Nvidia Nemotron, GLM, Kimi, DeepSeek, and GPT-OSS models added to the Baseten catalog
---
@ -93,30 +97,48 @@ pip install litellm==1.83.7rc1
- **[Anthropic](../../docs/providers/anthropic)**
- Support `advisor_20260301` tool type for structured advisor responses - [PR #25525](https://github.com/BerriAI/litellm/pull/25525), [PR #25545](https://github.com/BerriAI/litellm/pull/25545)
- **[AWS Bedrock](../../docs/providers/bedrock)**
- Add GovCloud routing mode (`us-gov` prefix) for Bedrock models - [PR #25254](https://github.com/BerriAI/litellm/pull/25254)
- Skip dummy user/continue message for assistant prefix prefill - [PR #25419](https://github.com/BerriAI/litellm/pull/25419)
- **[Triton](../../docs/providers/triton-inference-server)**
- Add embedding usage estimation for self-hosted Triton responses - [PR #25345](https://github.com/BerriAI/litellm/pull/25345)
- **[Google Gemini](../../docs/providers/gemini)**
- Add `supports_service_tier` flag to `gemini-2.5-flash`, `gemini-2.5-pro`, `gemini-3-pro`, `gemini-3-flash`, `gemini-2.5-flash-lite`, and related image preview models - [PR #25562](https://github.com/BerriAI/litellm/pull/25562)
- **[Baseten](../../docs/providers/baseten)**
- Add pricing entries for 11 new Baseten models - [PR #25358](https://github.com/BerriAI/litellm/pull/25358)
### Bug Fixes
- **[AWS Bedrock](../../docs/providers/bedrock)**
- Fix double-counting of cache tokens in Anthropic Messages streaming usage - [PR #25517](https://github.com/BerriAI/litellm/pull/25517)
- Update `us-gov` Claude Sonnet 4.5 pricing: $3.30/$16.50 per 1M tokens, 8K max output, add native structured output - [PR #25562](https://github.com/BerriAI/litellm/pull/25562)
- **General**
- Fix `custom_llm_provider` not being passed to `get_llm_provider` for unprefixed model names in router - [PR #25334](https://github.com/BerriAI/litellm/pull/25334)
## LLM API Endpoints
#### Features
- **[Responses API (/responses)](../../docs/response_api)**
- Append `?model=` query param to backend WebSocket URL for correct model routing - [PR #25437](https://github.com/BerriAI/litellm/pull/25437)
- Fix duplicate keyword argument error in Responses WebSocket handler - [PR #25513](https://github.com/BerriAI/litellm/pull/25513)
- Map `refusal` stop reason to `incomplete` status in streaming responses - [PR #25498](https://github.com/BerriAI/litellm/pull/25498)
- **[Files API (/files)](../../docs/proxy/pass_through)**
- Add file content streaming support for OpenAI-compatible file endpoints - [PR #25450](https://github.com/BerriAI/litellm/pull/25450), [PR #25569](https://github.com/BerriAI/litellm/pull/25569)
- **[Containers API](../../docs/providers/openai_compatible)**
- Add Azure routing, managed container ID support, and delete response parsing - [PR #25287](https://github.com/BerriAI/litellm/pull/25287)
#### Bugs
- **General**
- Fix duplicate keyword argument error in Responses WebSocket handler - [PR #25513](https://github.com/BerriAI/litellm/pull/25513)
- Fix pass-through of multipart uploads and Bedrock JSON body in proxy requests - [PR #25464](https://github.com/BerriAI/litellm/pull/25464)
- Fix tag-based routing broken when `encrypted_content_affinity` is enabled - [PR #25347](https://github.com/BerriAI/litellm/pull/25347)
- Align v1 guardrail and agent list response field handling with v2 - [PR #25478](https://github.com/BerriAI/litellm/pull/25478)
## Management Endpoints / UI
@ -131,11 +153,15 @@ pip install litellm==1.83.7rc1
- **Spend Logs**
- Team members can view team-wide spend logs from the UI with RBAC enforcement - [PR #25458](https://github.com/BerriAI/litellm/pull/25458)
- **Models + Credentials**
- Add credential overrides per team/project via `model_config` metadata — no proxy restart needed - [PR #24438](https://github.com/BerriAI/litellm/pull/24438)
- **Virtual Keys**
- Align `/v2/key/info` response field handling with `/v1/key/info` - [PR #25313](https://github.com/BerriAI/litellm/pull/25313)
#### Bugs
- Allow JWT to override OAuth2 routing without requiring global OAuth2 enablement - [PR #25252](https://github.com/BerriAI/litellm/pull/25252)
- Improve input validation on management endpoints to reject malformed requests - [PR #25445](https://github.com/BerriAI/litellm/pull/25445)
- Use parameterized query for combined-view token lookup to prevent SQL injection - [PR #25467](https://github.com/BerriAI/litellm/pull/25467)
- Fix session-timezone-independent date filtering for spend/error log queries - [PR #25542](https://github.com/BerriAI/litellm/pull/25542)
@ -145,17 +171,31 @@ pip install litellm==1.83.7rc1
### Logging
- **[Ramp](../../docs/proxy/logging)**
- Add Ramp as a built-in success callback - [PR #23769](https://github.com/BerriAI/litellm/pull/23769)
- **[Langfuse](../../docs/proxy/logging#langfuse)**
- Preserve proxy key-auth metadata on `/v1/messages` Langfuse traces - [PR #25448](https://github.com/BerriAI/litellm/pull/25448)
- **[S3](../../docs/proxy/logging#s3)**
- Add retry with exponential backoff for transient S3 503/500 errors - [PR #25530](https://github.com/BerriAI/litellm/pull/25530)
- **[Prometheus](../../docs/proxy/prometheus)**
- Reduce default latency histogram bucket cardinality to lower memory overhead - [PR #25527](https://github.com/BerriAI/litellm/pull/25527)
- **General**
- Ensure spend/cost logging runs correctly when `stream=True` in websearch interception - [PR #25424](https://github.com/BerriAI/litellm/pull/25424)
### Guardrails
- Add `applyGuardrail` support for inline IAM-based guardrails - [PR #25241](https://github.com/BerriAI/litellm/pull/25241)
- Add UI option to skip system messages in guardrail processing - [PR #25562](https://github.com/BerriAI/litellm/pull/25562)
- Add optional skip of system messages in unified guardrail inputs - [PR #25481](https://github.com/BerriAI/litellm/pull/25481)
- Fix preserving dict guardrail `HTTPException.detail` and Bedrock context - [PR #25558](https://github.com/BerriAI/litellm/pull/25558)
## Spend Tracking, Budgets and Rate Limiting
- Team members can now access team-wide spend logs with proper RBAC enforcement - [PR #25458](https://github.com/BerriAI/litellm/pull/25458)
- Fix batch-limit stale managed object cleanup to prevent large row updates - [PR #25258](https://github.com/BerriAI/litellm/pull/25258)
- Fix timezone-independent date filtering in spend/error log queries - [PR #25542](https://github.com/BerriAI/litellm/pull/25542)
## MCP Gateway
@ -166,6 +206,8 @@ pip install litellm==1.83.7rc1
## Performance / Loadbalancing / Reliability improvements
- Reduce default Prometheus latency histogram bucket cardinality to lower memory overhead - [PR #25527](https://github.com/BerriAI/litellm/pull/25527)
- Fix batch-limit stale managed object cleanup to prevent 300K+ row updates - [PR #25258](https://github.com/BerriAI/litellm/pull/25258)
- Fix node-gyp symlink path after npm upgrade in Dockerfile - [PR #25048](https://github.com/BerriAI/litellm/pull/25048)
- Handle missing `.npmrc` gracefully in `Dockerfile.non_root` - [PR #25307](https://github.com/BerriAI/litellm/pull/25307)
- Harden file path resolution in skill archive extraction - [PR #25475](https://github.com/BerriAI/litellm/pull/25475)
@ -173,12 +215,16 @@ pip install litellm==1.83.7rc1
## Documentation Updates
- Add Anthropic Advisor Tool guide - [PR #25545](https://github.com/BerriAI/litellm/pull/25545)
- Add Docker Image Security Guide (cosign verification and deployment best practices) - [PR #25439](https://github.com/BerriAI/litellm/pull/25439)
- Add missing MCP per-user token env vars to `config_settings` reference - [PR #25471](https://github.com/BerriAI/litellm/pull/25471)
- Update guardrails quick-start and proxy config settings docs - [PR #25562](https://github.com/BerriAI/litellm/pull/25562)
## New Contributors
* @kedarthakkar made their first contribution in https://github.com/BerriAI/litellm/pull/23769
* @csoni-cweave made their first contribution in https://github.com/BerriAI/litellm/pull/25441
* @jaydns made their first contribution in https://github.com/BerriAI/litellm/pull/25445
* @J-Byron made their first contribution in https://github.com/BerriAI/litellm/pull/25527
* @jimmychen-p72 made their first contribution in https://github.com/BerriAI/litellm/pull/25530
**Full Changelog**: https://github.com/BerriAI/litellm/compare/v1.83.3.rc.1...v1.83.7.rc.1