Python Releases
Python language news, releases and ecosystem updates. New features, breaking changes, security advisories and deprecations - each summarised in plain English and updated continuously.
Tracking 133 Python releases · Updated
- OpenAI Agents SDK (Python) Releases sdkaimediapython-agentic ·
OpenAI Agents Python v0.17.7: Bug fixes and minor feature enhancements
The OpenAI Agents Python library has released version 0.17.7, focusing primarily on bug fixes to improve stability and address various issues. Notably, changes include enhancements to buffering for chat completions and sandbox operations, alongside fixes for message cleanup and tool dispatch logic. These updates are relevant for developers using the Python SDK to interact with OpenAI's agent capabilities, ensuring a more robust and reliable experience.
patch - Pydantic AI Releases sdkaideprecationmediapython-agentic ·
Pydantic AI V2.0.0 Released
Pydantic AI has released version 2.0.0, marking a stable release after seven betas. This version introduces a harness-first design with capabilities as a core primitive for agent development. It's recommended for developers building AI agents, and users should consult the upgrade guide for migration from V1.
feature patch - OpenAI Agents SDK (Python) Releases sdkaiengineerpython-agentic ·
OpenAI Agents Python v0.18.1: Bug fixes and documentation updates
The OpenAI Agents Python library has released version 0.18.1, focusing on bug fixes and documentation improvements. This update addresses issues related to session cleanup, tool state preservation, and stream handling. It also includes enhancements for cache-write usage and logprobs accumulation, impacting developers using these features. The release is a patch update with no new major features.
patch - OpenAI Agents SDK (Python) Releases sdkaiengineerpython-agentic ·
openai-agents-python v0.18.0: RealtimeAgent default model changed, Unicode support added
The openai-agents-python library has released version 0.18.0, defaulting RealtimeAgents to the gpt-realtime-2.1 model for improved performance. Additionally, Unicode storage options are now available for SQLAlchemy sessions, enhancing data handling capabilities. These changes affect users leveraging RealtimeAgent or SQLAlchemySession within the library.
feature patch - Pydantic AI Releases sdkaiazureengineerpython-agentic ·
pydantic-ai v2.7.0: Azure shorthand, Grok-4.5 model, and bug fixes
Version 2.7.0 of pydantic-ai introduces support for the Azure-responses model ID shorthand and adds the xAI grok-4.5 model. It also includes several bug fixes, such as improved handling of boolean JSON Schema nodes and preservation of HTTPX event hooks. This release is relevant for developers using pydantic-ai with Azure and other AI providers.
feature patch - Pydantic AI Releases sdkaisecuritysecurity-advisoryengineermediapython-agentic ·
pydantic-ai v2.6.0 adds file support, Bedrock profiles, and security fixes
Pydantic-ai version 2.6.0 introduces new features including file support for CodeExecutionTool and additional Bedrock model profiles, enhancing usability for AI development. It also addresses several bug fixes to improve stability and integrates dependency updates to mitigate known security vulnerabilities. These changes are relevant for developers building AI applications with pydantic-ai, particularly those integrating with Anthropic, OpenAI, or AWS Bedrock services.
feature patch - CrewAI Releases sdkaiengineerpython-agentic ·
CrewAI 1.15.1: Git initialization, explicit definitions, and bug fixes
CrewAI version 1.15.1 introduces new features including Git repository initialization for generated projects and requires explicit crew definitions for enhanced project clarity. This patch also addresses several bugs, such as issues with deployment page link resolution and JSON crew template rendering, aiming to improve the development workflow for users building autonomous AI agents. The release is available now as a patch.
feature patch - Pydantic AI Releases sdkaisecuritysecurity-advisoryengineerpython-agentic ·
pydantic-ai v2.9.1: Bug fixes and dependency updates
Pydantic-ai version 2.9.1 addresses several bugs related to typed composition, integer timeouts in Mistral models, and retired model handling. It also includes a crucial dependency update to address a ReDoS vulnerability in soupsieve (CVE-2026-49477). This patch is relevant for all users of the pydantic-ai library, especially those integrating with Mistral models or handling typed data compositions.
patch - Pydantic AI Releases sdkaiengineerpython-agentic ·
pydantic-ai v2.8.0: New features and bug fixes
Pydantic-ai version 2.8.0 introduces new features like enhanced `to_cli()` capabilities and an updated bundled chat UI. The release also addresses several bugs, including validation issues with tool parameters and fixes for response handling. This update is relevant for developers utilizing pydantic-ai for AI agent development and integration.
feature patch - Pydantic AI Releases sdkaimediapython-agentic ·
pydantic-ai v2.3.0 adds Zhipu AI provider and numerous bug fixes
Version 2.3.0 of pydantic-ai introduces a new native provider for Z.AI (Zhipu AI) with thinking support. The release also includes a significant number of bug fixes addressing issues with tool results, file content handling, message routing, and state reconstruction. These updates are relevant to developers using pydantic-ai for AI integrations, particularly those leveraging various providers and tools.
feature patch - FastAPI Releases sdkengineerpython-web ·
FastAPI 0.139.0: Frontend Dependencies and Translation Updates
FastAPI version 0.139.0 introduces support for dependencies within `app.frontend()`, which can be used for automatic cookie authentication for the frontend. This release also includes extensive updates to translations across multiple languages. These changes are available now and primarily affect developers using FastAPI for web application development.
feature patch - Pydantic AI Releases sdkaimediapython-agentic ·
pydantic-ai v2.5.0: Security Fix, New Features, and Bug Fixes
Version 2.5.0 of pydantic-ai addresses a moderate security vulnerability (GHSA-jpr8-2v3g-wgf9) related to message sanitization in the AG-UI serving path. This release also introduces new features like `sanitize_messages` for inbound history hardening and round-trip multimodal tool returns through AG-UI and Vercel AI adapters. The update includes numerous bug fixes across various components, impacting users of both v2 and v1 lines of the library.
security feature patch - Pydantic AI Releases sdkaiengineermediapython-agentic ·
pydantic-ai v2.2.0: New AI model support and numerous bug fixes
Pydantic-ai version 2.2.0 introduces support for Anthropic's Claude Sonnet 5 and adds usage cost fields for OpenRouter. Several bug fixes are included, addressing issues with GroqModel metadata, Pyodide callbacks, usage accumulation, and Heroku routing. These updates benefit developers integrating various AI models and enhance the stability and functionality of the pydantic-ai library.
feature patch - Pydantic AI Releases sdkaipython-agentic ·
pydantic-ai v2.4.0: New Evaluators and Bug Fixes
Pydantic-ai version 2.4.0 introduces several new features, including enhanced evaluation capabilities with GEval and new span-based evaluators for agentic systems. It also addresses various bug fixes across different modules, improving stability and functionality. These updates benefit developers working with AI agents and LLM applications, offering more robust evaluation tools and refined behavior. The release includes dependency updates and contributions from new community members.
feature patch - Pydantic AI Releases sdkaiengineerpython-agentic ·
pydantic-ai v1.107.1 patches security vulnerability
Pydantic-ai v1.107.1 addresses a moderate security vulnerability (GHSA-jpr8-2v3g-wgf9) in its AG-UI serving path that could expose and execute tool calls with client-chosen arguments. This fix impacts users of `pydantic-ai` and `pydantic-ai-slim` versions >= 1.88.0 and < 2.5.0, with patches available in v1.107.1 and v2.5.0. Users can also mitigate this by configuring tools to require approval or by implementing their own argument validation and authorization.
security patch - uv Releases sdkinfra ·
uv 0.11.26: Performance improvements and bug fixes
The uv package manager has released version 0.11.26, incorporating several performance enhancements and bug fixes to improve dependency resolution and build processes. These updates aim to optimize performance by adapting to dependency IDs, avoiding unnecessary allocations, and reusing resolver work. The release also includes a fix for a warning related to the build cache location. This patch is relevant for all users of uv, particularly those working with complex dependency graphs or on performance-sensitive projects.
patch - uv Releases sdkpreviewengineer ·
uv 0.11.24 adds CPython 3.15.0b3 support and preview features
This release of uv (version 0.11.24) adds support for CPython 3.15.0b3 and introduces a preview feature for making project environments relocatable. It also includes performance improvements and several bug fixes, such as disabling `exclude-newer` and avoiding archive ID collisions. The update is available for various platforms, with checksums provided.
patch - uv Releases sdkpreviewengineer ·
uv 0.11.27: Performance, bug fixes, and preview features
This release of uv (version 0.11.27) introduces significant performance improvements, addresses several bugs, and includes a new preview feature. The performance enhancements focus on optimizing dependency resolution and parsing, aiming to speed up package management operations for all users. A new preview feature for discovering extensionless shebang scripts is now available for early adopters. These changes are particularly relevant for developers using uv for Python package management.
patch - uv Releases sdkengineer ·
uv 0.11.28 releases security fixes and performance enhancements
Version 0.11.28 of uv hardens ZIP handling against parser differentials by updating the astral-async-zip library. This release also includes performance optimizations by reducing allocations in various operations and enhancements to error reporting for better user feedback. These changes are relevant to all users of uv, particularly those dealing with complex dependency management scenarios.
patch - uv Releases sdkengineer ·
uv 0.11.23 release notes
The uv 0.11.23 patch release reverts a change that caused unintended breakage in pre-commit environments and restores previous behavior for workspace members. This release also includes updated prebuilt binaries for various platforms and new instructions for verifying GitHub Artifact Attestations. This update is relevant for users of uv, particularly those employing it within pre-commit hooks or managing complex workspace projects.
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