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docs release notes
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Ishaan Jaff
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docs/my-website/release_notes/v1.74.15-stable/index.md
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docs/my-website/release_notes/v1.74.15-stable/index.md
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---
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title: "[Pre-Release] v1.74.15-stable"
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slug: "v1-74-15"
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date: 2025-08-02T10:00:00
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authors:
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- name: Krrish Dholakia
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title: CEO, LiteLLM
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url: https://www.linkedin.com/in/krish-d/
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image_url: https://pbs.twimg.com/profile_images/1298587542745358340/DZv3Oj-h_400x400.jpg
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- name: Ishaan Jaffer
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title: CTO, LiteLLM
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url: https://www.linkedin.com/in/reffajnaahsi/
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image_url: https://pbs.twimg.com/profile_images/1613813310264340481/lz54oEiB_400x400.jpg
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hide_table_of_contents: false
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---
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import Image from '@theme/IdealImage';
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import Tabs from '@theme/Tabs';
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import TabItem from '@theme/TabItem';
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## Deploy this version
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<Tabs>
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<TabItem value="docker" label="Docker">
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``` showLineNumbers title="docker run litellm"
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docker run \
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-e STORE_MODEL_IN_DB=True \
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-p 4000:4000 \
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ghcr.io/berriai/litellm:v1.74.15-stable
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```
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</TabItem>
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<TabItem value="pip" label="Pip">
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``` showLineNumbers title="pip install litellm"
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pip install litellm==1.74.15.post1
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```
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</TabItem>
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</Tabs>
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---
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## Key Highlights
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- **User Agent Activity Tracking** - Track DAU, WAU, MAU for coding tool usage with comprehensive user activity analytics.
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- **Prompt Management** - Abstract prompt templates away from model list for better permission management.
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- **Google AI Studio Imagen4** - Support for Google's new Imagen4 model family for image generation.
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- **Enhanced MCP Gateway** - Improved health checks, guardrails, and better client protocol handling.
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- **Anthropic Mid-Stream Fallbacks** - Advanced fallback handling with token usage tracking across multiple calls.
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---
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## User Agent Activity Tracking
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[Read More](../../docs/proxy/user_analytics)
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---
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## Prompt Management
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<br/>
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[Read More](../../docs/proxy/prompt_management)
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---
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## MCP Gateway - MCP Guardrails
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---
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## New Models / Updated Models
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#### New Model Support
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| Provider | Model | Context Window | Type |
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| ----------- | -------------------------------------- | -------------- | ---- |
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| Google AI Studio | `gemini/imagen4` | N/A | Image Generation |
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| OpenRouter | `openrouter/grok4` | Various | Text Generation |
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#### Features
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- **[Google AI Studio](../../docs/providers/gemini)**
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- Added Google AI Studio Imagen4 model family support - [PR #13065](https://github.com/BerriAI/litellm/pull/13065)
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- Support for query_params in generateContent routes for API Key setting - [PR #13100](https://github.com/BerriAI/litellm/pull/13100)
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- **[Azure OpenAI](../../docs/providers/azure/azure)**
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- Azure `api_version="preview"` support - [PR #13072](https://github.com/BerriAI/litellm/pull/13072)
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- Password protected certificate files support - [PR #12995](https://github.com/BerriAI/litellm/pull/12995)
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- **[AWS Bedrock](../../docs/providers/bedrock)**
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- Cost tracking via Anthropic `/v1/messages` - [PR #13072](https://github.com/BerriAI/litellm/pull/13072)
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- Computer use support (with fixes) - [PR #13150](https://github.com/BerriAI/litellm/pull/13150)
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- Framework name in UserAgent header - [PR #13159](https://github.com/BerriAI/litellm/pull/13159)
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- **[OpenRouter](../../docs/providers/openrouter)**
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- Added Grok4 model support - [PR #13018](https://github.com/BerriAI/litellm/pull/13018)
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- **[Anthropic](../../docs/providers/anthropic)**
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- Working mid-stream fallbacks with token usage tracking - [PR #13149](https://github.com/BerriAI/litellm/pull/13149), [PR #13170](https://github.com/BerriAI/litellm/pull/13170)
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- Improved cache_control_injection_points with negative index support - [PR #13187](https://github.com/BerriAI/litellm/pull/13187)
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- **[Perplexity](../../docs/providers/perplexity)**
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- Citation annotations support - [PR #13225](https://github.com/BerriAI/litellm/pull/13225)
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#### Bugs
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- **[Gemini](../../docs/providers/gemini)**
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- Fix merge_reasoning_content_in_choices parameter issue - [PR #13066](https://github.com/BerriAI/litellm/pull/13066)
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- Fix CLI authorization format issues - [PR #13098](https://github.com/BerriAI/litellm/pull/13098), [PR #13189](https://github.com/BerriAI/litellm/pull/13189)
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- Environment variable support fixes - [PR #12507](https://github.com/BerriAI/litellm/pull/12507)
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- **[VertexAI](../../docs/providers/vertex)**
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- Ensure multimodal embedding responses are logged properly - [PR #13050](https://github.com/BerriAI/litellm/pull/13050)
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- **[vLLM/OpenAI-like](../../docs/providers/vllm)**
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- Fix missing extra_headers support for embeddings - [PR #13198](https://github.com/BerriAI/litellm/pull/13198)
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---
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## LLM API Endpoints
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#### Features
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- **[/v1/models](../../docs/providers/passthrough)**
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- Preserve model order in `/v1/models` and `/model_group/info` endpoints - [PR #13178](https://github.com/BerriAI/litellm/pull/13178)
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- **[Passthrough endpoints](../../docs/pass_through/)**
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- Allow redefining LLM base API URL in passthrough endpoints - [PR #13134](https://github.com/BerriAI/litellm/pull/13134)
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#### Bugs
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- **Token Counting**
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- Ignore unsupported keys like prefix in token counter - [PR #11954](https://github.com/BerriAI/litellm/pull/11954)
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- **Fallbacks**
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- Fix fallback delete functionality - [PR #12606](https://github.com/BerriAI/litellm/pull/12606)
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- **JWT Fields**
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- Add dot notation support for all JWT fields - [PR #13013](https://github.com/BerriAI/litellm/pull/13013)
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---
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## Management Endpoints / UI
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#### Features
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- **Usage Analytics**
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- Default usage chart date range set to last 7 days - [PR #12917](https://github.com/BerriAI/litellm/pull/12917)
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- New advanced date range picker component - [PR #13141](https://github.com/BerriAI/litellm/pull/13141), [PR #13221](https://github.com/BerriAI/litellm/pull/13221)
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- Show loader on usage cost charts after date selection - [PR #13113](https://github.com/BerriAI/litellm/pull/13113)
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- **User Agent Activity**
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- New tab for user agent activity tracking - [PR #13146](https://github.com/BerriAI/litellm/pull/13146)
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- Daily usage per user analytics - [PR #13147](https://github.com/BerriAI/litellm/pull/13147)
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- **Provider Support**
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- Added Voyage, Jinai, Deepinfra and VolcEngine providers on UI - [PR #13131](https://github.com/BerriAI/litellm/pull/13131)
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- Added Sagemaker on UI - [PR #13117](https://github.com/BerriAI/litellm/pull/13117)
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- **Key Management**
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- Properly parse JSON options for key generation in UI - [PR #12989](https://github.com/BerriAI/litellm/pull/12989)
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#### Bugs
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- **Permissions**
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- Fix object permission for organizations - [PR #13142](https://github.com/BerriAI/litellm/pull/13142)
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- Fix list team v2 security check - [PR #13094](https://github.com/BerriAI/litellm/pull/13094)
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- **Model Management**
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- Fix model reload on model update - [PR #13216](https://github.com/BerriAI/litellm/pull/13216)
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- Fix fallbacks UI display - [PR #13191](https://github.com/BerriAI/litellm/pull/13191)
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- **Configuration**
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- Fix wildcard model name handling with custom values - [PR #13116](https://github.com/BerriAI/litellm/pull/13116)
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---
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## Logging / Guardrail Integrations
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#### Features
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- **[MLFlow](../../docs/proxy/logging#mlflow)**
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- Allow adding tags for MLFlow logging requests - [PR #13108](https://github.com/BerriAI/litellm/pull/13108)
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- **[Langfuse OTEL](../../docs/proxy/logging#langfuse)**
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- Add comprehensive metadata support to Langfuse OpenTelemetry integration - [PR #12956](https://github.com/BerriAI/litellm/pull/12956)
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- **[Datadog LLM Observability](../../docs/proxy/logging#datadog)**
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- Allow redacting message/response content for specific logging integrations - [PR #13158](https://github.com/BerriAI/litellm/pull/13158)
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#### Bugs
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- **API Key Logging**
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- Fix API Key being logged inappropriately - [PR #12978](https://github.com/BerriAI/litellm/pull/12978)
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- **MCP Spend Tracking**
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- Set default value for MCP namespace tool name in spend table - [PR #12894](https://github.com/BerriAI/litellm/pull/12894)
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---
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## Performance / Loadbalancing / Reliability improvements
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#### Features
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- **Background Health Checks**
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- Allow disabling background health checks for specific deployments - [PR #13186](https://github.com/BerriAI/litellm/pull/13186)
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- **Database Connection Management**
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- Ensure stale Prisma clients disconnect DB connections properly - [PR #13140](https://github.com/BerriAI/litellm/pull/13140)
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- **Jitter Improvements**
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- Fix jitter calculation (should be added not multiplied) - [PR #12901](https://github.com/BerriAI/litellm/pull/12901)
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#### Bugs
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- **Anthropic Streaming**
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- Always use choice index=0 for Anthropic streaming responses - [PR #12666](https://github.com/BerriAI/litellm/pull/12666)
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- **Custom Auth**
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- Bubble up custom exceptions properly - [PR #13093](https://github.com/BerriAI/litellm/pull/13093)
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- **OTEL with Managed Files**
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- Fix using managed files with OTEL integration - [PR #13171](https://github.com/BerriAI/litellm/pull/13171)
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---
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## General Proxy Improvements
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#### Features
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- **Database Migration**
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- Move to use_prisma_migrate by default - [PR #13117](https://github.com/BerriAI/litellm/pull/13117)
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- Resolve team-only models on auth checks - [PR #13117](https://github.com/BerriAI/litellm/pull/13117)
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- **Infrastructure**
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- Loosened MCP Python version restrictions - [PR #13102](https://github.com/BerriAI/litellm/pull/13102)
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- Migrate build_and_test to CI/CD Postgres DB - [PR #13166](https://github.com/BerriAI/litellm/pull/13166)
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- **Helm Charts**
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- Allow Helm hooks for migration jobs - [PR #13174](https://github.com/BerriAI/litellm/pull/13174)
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- Fix Helm migration job schema updates - [PR #12809](https://github.com/BerriAI/litellm/pull/12809)
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#### Bugs
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- **Docker**
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- Remove obsolete `version` attribute in docker-compose - [PR #13172](https://github.com/BerriAI/litellm/pull/13172)
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- Add openssl in runtime stage for non-root Dockerfile - [PR #13168](https://github.com/BerriAI/litellm/pull/13168)
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- **Database Configuration**
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- Fix DB config through environment variables - [PR #13111](https://github.com/BerriAI/litellm/pull/13111)
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- **Logging**
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- Suppress httpx logging - [PR #13217](https://github.com/BerriAI/litellm/pull/13217)
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---
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## New Contributors
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* @5731la made their first contribution in https://github.com/BerriAI/litellm/pull/12989
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* @restato made their first contribution in https://github.com/BerriAI/litellm/pull/12980
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* @strickvl made their first contribution in https://github.com/BerriAI/litellm/pull/12956
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* @Ne0-1 made their first contribution in https://github.com/BerriAI/litellm/pull/12995
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* @maxrabin made their first contribution in https://github.com/BerriAI/litellm/pull/13079
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* @lvuna made their first contribution in https://github.com/BerriAI/litellm/pull/12894
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* @Maximgitman made their first contribution in https://github.com/BerriAI/litellm/pull/12666
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* @pathikrit made their first contribution in https://github.com/BerriAI/litellm/pull/12901
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* @huetterma made their first contribution in https://github.com/BerriAI/litellm/pull/12809
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* @betterthanbreakfast made their first contribution in https://github.com/BerriAI/litellm/pull/13029
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* @phosae made their first contribution in https://github.com/BerriAI/litellm/pull/12606
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* @sahusiddharth made their first contribution in https://github.com/BerriAI/litellm/pull/12507
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* @Amit-kr26 made their first contribution in https://github.com/BerriAI/litellm/pull/11954
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* @kowyo made their first contribution in https://github.com/BerriAI/litellm/pull/13172
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* @AnandKhinvasara made their first contribution in https://github.com/BerriAI/litellm/pull/13187
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* @unique-jakub made their first contribution in https://github.com/BerriAI/litellm/pull/13174
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* @tyumentsev4 made their first contribution in https://github.com/BerriAI/litellm/pull/13134
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* @aayush-malviya-acquia made their first contribution in https://github.com/BerriAI/litellm/pull/12978
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* @kankute-sameer made their first contribution in https://github.com/BerriAI/litellm/pull/13225
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* @AlexanderYastrebov made their first contribution in https://github.com/BerriAI/litellm/pull/13178
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## **[Full Changelog](https://github.com/BerriAI/litellm/compare/v1.74.9-stable...v1.74.15.rc)**
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