LangChain

Version 1.3.4 of langchain-openai primarily focuses on bug fixes, including suppressing Pydantic warnings and improving async loop handling in core components.

LangChain version 1.3.12 primarily focuses on bug fixes, including improved interrupt propagation in retries and better handling of Anthropic cache markers during fallbacks.

This release focuses on stability and bug fixes within the core library, addressing issues in output parsing, error handling, and async context usage, alongside dependency bumps.

This release for langchain-mistralai surfaces citation metadata and adds support for stop sequences. Core components received updates for package version tracking in tracing metadata.

This release of langchain-openrouter primarily fixes an issue by adding support for custom HTTP headers via `default_headers`.

This release of langchain-openrouter focuses on minor bug fixes, specifically deduplicating finish metadata and stripping reasoning IDs from responses.

This release primarily contains bug fixes for the Anthropic integration and core error handling, alongside a minor dependency bump for langgraph-checkpoint.

This release primarily focuses on dependency updates across various components, including langsmith, vcrpy, and pytest, alongside introducing package version tracking for tracing metadata.

This release (0.2.4) for langchain-openrouter bumps its underlying `openrouter` dependency and introduces feature parity for parallel tool calls. It also includes numerous dependency updates and infrastructure chores across the repository.

This release fixes an issue in `ProviderStrategy` regarding tool strictness for OpenAI models and updates several dependencies.

This release primarily contains dependency bumps for vcrpy and langsmith, along with a hotfix to regenerate the anthropic cassette and minor documentation clarifications.

This patch release for langchain-openai primarily focuses on bug fixes related to response handling, tool strictness, and dependency updates for langsmith and vcrpy.

This release includes minor dependency bumps, updates to summary formatting, and fixes for provider snapshot detection across several components.

This release bumps several dependencies, removes support for Python < 3.10 in langchain-classic, and includes performance improvements and bug fixes related to streaming events.

This release (1.3.2) for langchain-openai contains minor updates since version 1.3.1.

This release introduces package version tracking in tracing metadata and fixes issues related to streamed tool calls and structured output fallbacks. It also updates internal testing configurations.

Version 1.4.7 of langchain-core primarily addresses bug fixes, including restoring Pydantic v1 compatibility in tools/runnable, and updates minor dependencies.

This release focuses on infrastructure improvements, including a mypy bump and unified type-checking, alongside a fix to confine file-search results in Anthropic integrations and new version tracking for tracing metadata.

This release includes minor fixes for LangChain and the Anthropic integration, specifically addressing file-search confinement and tightening allowed prefixes.

This release primarily addresses minor bug fixes related to async middleware and structured output fallbacks, alongside adding type overloads for `create_agent`.

Version 1.4.6 introduces package version tracking for tracing metadata and fixes an issue with normalizing streamed tool calls from OpenAI.

This release focuses heavily on dependency updates, particularly within `langchain-model-profiles`, and introduces content-block-centric streaming (v2) in the core library. Bug fixes address issues in Anthropic, Fireworks, and schema drift warnings in model profiles.

Langchain core version 1.4.5 introduces validation for streaming tool call chunks in tests and fixes an issue with async tracer fallback in sync contexts.

This release primarily focuses on dependency updates and minor fixes, including supporting content block tokens in callbacks and bumping several internal dependencies.

This release primarily focuses on bug fixes, specifically supporting content block tokens in callbacks, and includes minor dependency updates.

Version 1.0.8 of langchain-classic includes a fix for content block tokens in callbacks and updates several internal dependencies to newer versions.

This hotfix release bumps lockfiles and includes several bug fixes related to callbacks, tool error handling, and typing improvements in langchain-core.

Version 1.3.7 introduces the `ProviderToolSearchMiddleware` and prepares for future compatibility by marking legacy views for removal.

This release focuses on dependency updates, infrastructure hardening, and feature enhancements, notably introducing content-block-centric streaming (v2) and Strict Mode for Groq.

This release (1.3.6) primarily focuses on fixing an issue related to preserving summarization trigger compatibility.

This release introduces AND-capable trigger conditions for `SummarizationMiddleware` and adds support for the `apply_patch` tool in OpenAI. It also updates several underlying dependencies.

Version 1.4.0 for langchain-perplexity introduces support for tool binding and improved tool round-trip handling with the Responses-API, alongside a minor dependency update.

This release introduces support for the `apply_patch` built-in tool and includes a hotfix to update the minimum required core dependency version for langchain-openai.

This release introduces support for the `apply_patch` built-in tool within OpenAI integrations.

This release primarily focuses on deprecating the problematic `dict()` method within the core library.

Version 1.3.2 for langchain-perplexity primarily addresses serialization issues related to ToolMessage and AIMessage.tool_calls.

This release focuses on minor fixes, dependency updates across several components, and documentation improvements, including removing Bedrock prevalidation and fixing stream assembly issues.

This release focuses heavily on dependency updates, infrastructure hardening, and enhancements to model profiling, including new fields and stable sorting. It also introduces content-block-centric streaming (v2) to the core.

This release primarily focuses on improving the guidance provided for Human-In-The-Loop rejection scenarios.

This release bumps the dependency on langgraph and introduces new features for subagent execution and middleware configuration in LangChain.

This patch release for langchain-anthropic primarily fixes an issue by normalizing cross-provider tool-call IDs and includes several dependency bumps.

This release primarily updates the underlying perplexityai dependency to version 0.34.1.

This release primarily addresses a serialization bug within the fireworks integration by ensuring non-wire keys are stripped from content parts. It also updates internal dependencies.

Version 1.3.0 introduces the `use_responses_api` flag for ChatPerplexity and updates several internal dependencies.

This release introduces PII redaction and stream transformer registration features, alongside fixes for TodoListMiddleware and glob_search sorting. It also updates several internal dependencies.

This release focuses on maintenance, dependency bumps, and minor fixes within the OpenAI integration, including guarding httpx finalizers and correctly sourcing LLM context sizes.

This release bumps the idna dependency and introduces an enhancement to streaming assertions within the standard-tests library.

Version 1.4.1 for langchain-fireworks introduces improved resilience by adding retries for API connection errors and setting a default retry limit.

Version 1.4.0 for langchain-fireworks migrates the integration to the fireworks-ai 1.x SDK and introduces proper context overflow error handling. Several minor dependency bumps were also performed.

This release primarily consists of dependency bumps and maintenance updates, including refreshing stale OpenAI model references and fixing a test assertion regarding model overrides.

This patch release (1.3.1) addresses a bug related to Bedrock provider aliasing within the summarization token check.

This release introduces support for version="v3" in event streaming methods for langchain agents.

This release focuses heavily on infrastructure updates, dependency bumps, and significant hardening across security (SSRF) and tracing mechanisms. New features include content-block-centric streaming (v2) and enhanced metadata tracing for LLM invocations.

This release reverts a previous change regarding agent tagging and introduces deprecations for 'hub' and load/dump limits within langchain-classic.

This release backports a critical path-traversal security fix to the langchain-core v0.3 branch.

This release backports security hardening for loads/dumps to version 0.3 and deprecates the 'hub' functionality.

This release of langchain-classic deprecates the 'hub' functionality and limits loads/dumps operations.

This release introduces significant updates to streaming protocols (v2 and v3), enhances agent capabilities with new middleware features, and includes numerous dependency bumps and bug fixes across various components.

This release primarily focuses on security hardening for manifest loading and restricts deserialization in the classic storage module, while also updating a dependency.

This release focuses on security enhancements by restricting deserialization and hardening the `load()` function against untrusted manifests.

This release focuses on security by hardening the `load()` function against untrusted manifests.

This release (1.3.3) focuses on hardening security for manifest loading and fixing several internal logic issues, including batch validation and tracer data preservation.

Version 1.3.1 of langchain-fireworks includes fixes related to API key requirements in embeddings and cleaning up ToolMessage content blocks.

This release primarily addresses a bug fix in the mistralai integration by cleaning up keys in ToolMessage.

This release primarily focuses on refactoring deprecation targets within langchain-classic and includes a minor bug fix for httpx finalizers in the anthropic integration.

This release focuses on dependency updates, minor bug fixes in Fireworks, and introduces content-block-centric streaming (v2) in the core library. Deprecation messages have also been refined.

This release (0.2.3) for langchain-openrouter primarily addresses a streaming bug related to reasoning details.

This release for langchain-mistralai adds image input support for human messages and includes several dependency updates and infrastructure improvements across the ecosystem.

The Fireworks integration has been updated to version 1.3.0, introducing the ability to specify a `service_tier` when initializing `ChatFireworks`.

This release includes numerous performance improvements, dependency bumps, and feature additions like content-block-centric streaming (v2) and integration of stream_events(version='v3'). Several bug fixes address token counting, model recognition, and middleware configuration.

This release introduces new fields for session tracking in OpenRouter and implements content-block-centric streaming (v2). It also includes several dependency updates and a fix for usage metadata extraction across multiple providers.

This release introduces content-block-centric streaming (v2) and support for the v3 stream protocol, alongside numerous bug fixes related to tracing, validation, and dependency updates. Path saving/loading functions for prompts have been deprecated.

This release introduces significant feature updates, including content-block-centric streaming (v2) and support for the v3 event protocol. Numerous bug fixes address issues related to tracing, serialization, SSRF hardening, and model wrapper compatibility.

Version 1.2.1 primarily addresses minor dependency updates and includes a fix for multimodal content block translation in Fireworks, alongside a new content-block-centric streaming feature in core.

This release introduces a new decision type to the HITL middleware for enhanced control flow.

This release introduces `PerplexityEmbeddings`, overhauls the Perplexity integration with its official SDK, and adds new fields to model profiles. It also includes several dependency bumps, notably for security and stability.

This release introduces content-block-centric streaming (v2) in core and adds agent type tagging for `create_agent` calls. It also includes several dependency updates and performance improvements.

This release (1.1.7) introduces content-block-centric streaming (v2) and updates several dependencies, including bumping the minimum required versions for core components.

This release for langchain-anthropic (1.4.2) restores cache control functionality and introduces content-block-centric streaming (v2) in the core library, alongside bumping minimum dependency versions.

This hotfix release bumps minimum core dependency versions and introduces content-block-centric streaming (v2) while fixing an issue with the Responses API check.

This release introduces content-block-centric streaming (v2) to the core library.

This release updates dependency versions across the board, refreshes model profile data, and introduces streaming usage metadata support for the Fireworks integration. It also fixes several bugs related to retries and tool binding in Fireworks.

This release updates dependencies and introduces minor feature enhancements in the core library, including changes to output formatting and tracer metadata handling.

Version 1.2.0 introduces a fix to prevent silent streaming hangs within ChatOpenAI and includes minor CI and partner integration chore updates.

This release primarily addresses a bug related to prompt cache retention during streaming operations in langchain-openai.

This release of langchain-openai primarily focuses on bug fixes related to streaming responses and Azure profile inference.

Langchain-core version 1.3.0 introduces new traceable metadata fields for chat models and LLMs, alongside several bug fixes related to SSRF policies and garbage collection support.

This release (1.4.1) introduces support for new Anthropic model features like Opus 4.7 and adaptive thinking, alongside dependency updates and minor bug fixes.

This release focuses on hardening HuggingFace integrations by improving repository ID validation and optimizing API calls, alongside updating model profile data and dependencies.

This release introduces new features like enhanced metadata tracing, support for ChatBaseten, and multimodal token counting. It also includes numerous bug fixes related to SSRF hardening, model serialization, and tool handling, alongside the deprecation of prompt saving/loading functions due to added path validation.

This release of langchain-classic (1.0.4) introduces deprecations, dependency bumps including pytest and cryptography, and fixes related to mypy errors and Azure AI Foundry model providers.

Version 1.1.14 of langchain-openai fixes an issue related to image token counting by implementing SSRF-safe transport. This release also updates several dependencies.

This release updates numerous dependencies, enforces SSRF-safe transport for URL splitting, and fixes a data loss issue in RecursiveJsonSplitter.

This release ports change 36816 to the v1.2 branch, resulting in version 1.2.31 of langchain-core.

This release primarily focuses on hardening private SSRF utilities within the core library.

This release primarily focuses on bug fixes related to API response handling, token extraction, and User-Agent overrides, alongside adding a feature to impute placeholder filenames for OpenAI file inputs.

This release updates langchain-core to version 1.2.29 and incorporates a fix from PR #36725.