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
- 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 sdkengineerpython-agentic ·
Google ADK Python v1.35.2 released
Version 1.35.2 of Google's ADK Python library has been released, addressing a bug fix. This update removes live event buffering in the runner, which may resolve issues related to event handling for users of this library. The change is available now as a patch release.
patch - LangGraph Releases sdkaiengineerpython-agentic ·
LangGraph 1.2.8 fixes state update bug
LangGraph version 1.2.8 addresses a critical bug where updating state on a new thread could cause a deadlock by forcing a snapshot instead of a stub checkpoint. This patch ensures smoother state management for developers using LangGraph, particularly in concurrent execution scenarios. The update is available now for all users.
patch - Google ADK (Python) Releases sdkaiengineermediapython-agentic ·
adk-python v1.36.1 releases bug fixes
The latest patch release for google/adk-python, version 1.36.1, addresses two critical bugs. It ensures clean connection exits during bidirectional streaming when GoAway signals are received and resolves issues with Vertex AI Live API session replay during reconnections or modality switches. These fixes are important for maintaining stable and reliable interactions with Google Cloud services for developers using the adk-python library.
patch - FastAPI Releases sdkengineerpython-web ·
FastAPI 0.137.1: Typing and Path Operation Fixes
This patch release for FastAPI addresses two issues: improved typing checks for APIRoute and a bug fix allowing empty paths in prefixless routers. These changes enhance the stability and flexibility of the framework for developers using these specific features. This is a routine patch update.
patch - 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 - 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
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