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 sdkaiengineerpython-agentic ·
LangGraph 1.2.9 fixes state metadata handling
LangGraph version 1.2.9 includes a fix for how state metadata and counters are handled for the delta channel. This resolves a defect that could impact the accuracy of state tracking in specific execution paths. The patch is now available for all users who have previously adopted LangGraph.
patch - FastAPI Releases sdkengineerpython-web ·
FastAPI 0.137.2: New route context iterator and dependency updates
FastAPI version 0.137.2 introduces a new `iter_route_contexts()` method for advanced use cases, enhancing flexibility for developers. This patch also includes dependency updates for several core packages like Starlette and cryptography, as well as numerous translation updates. These changes primarily affect developers using FastAPI, offering improved internal handling and tooling.
feature patch - 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 - LangGraph Releases sdkaiinfraengineerpython-agentic ·
LangGraph 1.2.6 fixes nested subgraph checkpointing and streaming
LangGraph version 1.2.6 addresses two critical regressions, restoring correct checkpointing for nested subgraphs and ensuring running subgraphs are canceled when streaming aborts. These fixes are important for stable and predictable execution of complex graph workflows. The update targets developers using LangGraph for multi-step agentic processes or complex state machines.
patch - FastAPI Releases sdkinfrapython-web ·
FastAPI 0.138.1: Internal tooling and dependency updates
This patch release for FastAPI includes several internal improvements and dependency updates. Changes focus on refactoring library skills for better information retrieval, simplifying CI workflows, and updating dependency management tools. These updates are primarily aimed at developers contributing to or maintaining the FastAPI project.
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 sdkengineermediapython-agentic ·
adk-python v1.35.1 improves streaming and metadata handling
This patch release for google/adk-python addresses two specific issues. It ensures grounding metadata is sent correctly for live 3.1 interactions and guarantees the final partial=False frame is always yielded in streaming scenarios. These fixes are relevant for developers using the adk-python library, particularly those working with streaming APIs or live interactions.
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 sdkaiengineerpython-agentic ·
LangGraph CLI 0.4.30 Adds API Version Range Support
LangGraph CLI version 0.4.30 introduces support for specifying compatible API version ranges, enhancing deployment flexibility. This update benefits developers managing LangGraph applications by allowing more resilient versioning strategies. The release also includes standardized README structures.
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 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
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