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
- CrewAI Releases sdkaiengineermediapython-agentic ·
crewAI 1.15.2: LLM Model Fetching, Flow Authoring, and Bug Fixes
This release of crewAI introduces dynamic LLM model fetching in the crew wizard and support for inline skill definitions, enhancing agent flexibility. It also includes bug fixes addressing input resolution, security vulnerabilities, and documentation updates for flow agent options. These changes primarily benefit developers and architects building AI-powered agent applications.
feature patch - FastAPI Releases sdkinfradeprecationpython-web ·
FastAPI 0.137.0: Router internals refactored, new features enabled
FastAPI version 0.137.0 introduces significant internal refactoring of APIRouter and APIRoute to preserve instances, enabling features like including subrouters before defining their routes and potentially saving memory. This change alters how `router.routes` is structured, moving from a plain list to a tree-like representation, which may impact custom logic iterating directly over routes. The release also includes documentation updates and dependency version bumps.
breaking feature patch - Google ADK (Python) Releases sdkaiazuredeprecationmediapython-agentic ·
google/adk-python v2.4.0 release highlights
The google/adk-python library has released version 2.4.0, introducing significant new features and bug fixes. Key enhancements include mTLS support for Google API tools, added support for OpenAI Responses API, and new capabilities for managing AI model interactions and workflows. These updates are relevant for developers utilizing the ADK library for integrating with Google Cloud services and AI models.
feature patch - Google ADK (Python) Releases sdkaipreviewdeprecationengineermediapython-agentic ·
adk-python v2.3.0: New features and bug fixes
The google/adk-python library has been updated to version 2.3.0, introducing several new features such as enhanced caching, GCS integration, mTLS support, and expanded LLM capabilities with Gemma4 and Live API translation. This release also addresses numerous bugs across various modules including core functionality, evaluation, and agent interactions, improving stability and performance for developers using the ADK. The update aims to provide a more robust and feature-rich environment for building AI-powered applications with Python.
feature patch - LangGraph Releases sdkinfraengineerpython-agentic ·
LangGraph CLI 0.4.31: Prebuild Images for Deploy, Dependency Updates
LangGraph CLI version 0.4.31 introduces the ability to use prebuilt images for deployment, streamlining the deployment process. It also includes numerous dependency updates across various libraries like Starlette, LangSmith, and cryptographic packages. These changes affect developers using the LangGraph CLI for deploying and managing their graph applications.
feature patch - FastAPI Releases sdkengineerpython-web ·
FastAPI 0.138.0: Frontend support and documentation updates
FastAPI version 0.138.0 introduces support for serving frontend applications directly from `app.frontend()` and `router.frontend()`. This release also includes numerous documentation improvements, translations, and internal fixes. The changes are relevant for developers using FastAPI to build web applications, particularly those integrating static frontend assets.
feature patch - Google ADK (Python) Releases sdkaiengineerpython-agentic ·
adk-python v1.36.0 adds GenAI SDK support
Google's adk-python library has been updated to version 1.36.0, introducing support for GenAI SDK versions 2.9 and higher. This feature enhancement is crucial for developers utilizing the latest generative AI capabilities within their Python applications. The update primarily affects developers working with Google's AI and machine learning tools. It requires users to have GenAI SDK 2.9+ installed.
feature - OpenAI Agents SDK (Python) Releases sdkaiengineerpython-agentic ·
OpenAI Agents Python SDK v0.17.6: Tool Input Guardrails and JSON Contract Enforcement
The latest release of the OpenAI Agents Python SDK (v0.17.6) introduces pre-approval tool input guardrails and enforces a strict JSON-compatible contract for tool outputs. These updates enhance the reliability and predictability of agent interactions, particularly for developers integrating custom tools. The changes primarily affect developers using the SDK for agent development and tool integration.
feature patch - OpenAI Agents SDK (Python) Releases sdkaipreviewengineerpython-agentic ·
OpenAI Agents Python v0.18.2: GPT-5.6 controls, multi-agent beta
This release introduces support for GPT-5.6 request controls and a hosted multi-agent beta feature, alongside several bug fixes for sandbox and real-time communication. The changes are aimed at enhancing control over model interactions and improving the stability of multi-agent systems. This patch primarily affects developers using the OpenAI agents Python library, with the multi-agent beta indicating a preview stage for this new functionality.
feature patch security - 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 v0.18.0: 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 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.
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About Python release tracking on ReleaseBytes
Python point releases, security fixes and end-of-life dates matter to almost every stack — including indirectly, through what Databricks runtimes and cloud services pin. ReleaseBytes tracks CPython releases and ecosystem news, and its EOL tracker shows exactly when each Python version stops receiving security fixes.
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