MCP Servers

OpenClaw v2026.5.3-beta.3 introduces a bundled file-transfer plugin with secure binary file operations, hardens plugin installation workflows, and optimizes Gateway performance through lazy-loading. Major improvements include enhanced channel support (WhatsApp, Discord, Telegram), improved agent runtime reliability, and numerous fixes for edge cases in streaming, transcription, and configuration management. The release emphasizes security (default-deny policies, symlink traversal protection), performance (startup optimization, hot-path trimming), and operational robustness (doctor command enhancements, state recovery).

langchain-anthropic version 1.4.3 has been released with several improvements and fixes. Key changes include refactoring deprecation targets for the classic agent creation, updating documentation references, and fixing httpx finalizer guards in the Anthropic integration. This release maintains compatibility while addressing technical debt and improving the integration's stability.

OpenClaw v2026.5.3-beta.2 introduces a bundled file-transfer plugin with secure binary file operations, hardens plugin installation and updates, and improves gateway performance through lazy-loading. The release enhances channel reliability across Discord, WhatsApp, Telegram, and other platforms, while fixing critical issues in agent runtime, memory status reporting, and macOS upgrades. Key improvements focus on security (path policies, symlink traversal), performance (startup optimization), and reliability (streamed replies, session recovery).

LangChain released langchain-fireworks version 1.3.0, introducing a new `service_tier` initialization parameter for the `ChatFireworks` class. This update includes model profile data refresh and represents an incremental feature addition to the Fireworks integration. The release enables users to specify service tier configurations when initializing Fireworks chat models.

langchain-mistralai version 1.1.3 introduces image input support for human messages and updates core streaming capabilities with content-block-centric streaming (v2). The release includes dependency updates, security patches (CVE-2026-4539 via pygments), model profile refreshes, and infrastructure improvements. Key changes involve bumping minimum core versions, updating langsmith to 0.7.31, and standardizing integration test invocation across partner packages.

langchain-openrouter version 0.2.3 has been released with a critical bug fix for streaming functionality. The main improvement addresses fragmented `reasoning_details` that were being split across multiple streaming chunks. This fix ensures that reasoning details are properly merged during streaming operations, improving the reliability of OpenRouter integration in LangChain.

langchain-core version 1.4.0a1 is an alpha release featuring the new stream_events(version='v3') protocol for improved event streaming. The release includes fixes for structured inputs preservation in tool runs, optional removal parameters in deprecation warnings, and batch size validation to prevent infinite loops. Key improvements focus on streaming capabilities, tracer metadata handling, and various bug fixes across core functionality.

Google ADK Python v1.32.0 introduces significant enhancements to agent development capabilities, including native OpenTelemetry metrics, Anthropic thinking blocks support, improved authentication mechanisms (2LO/3LO via GcpAuthProvider), and express mode deployment. The release addresses critical security vulnerabilities (RCE via YAML, SSRF), fixes parallel tool execution issues, and improves analytics with BigQuery LLM cache metadata logging and credential isolation to prevent race conditions.

Claude Code v2.1.126 introduces gateway model listing, project purge functionality, improved OAuth authentication for WSL/SSH/containers, and numerous bug fixes. Key improvements include permission bypass options, better shell detection on Windows, security fixes for managed settings, and stability enhancements for streaming, image handling, and remote sessions. The release also refines telemetry events, fixes UI issues, and resolves edge cases in tool availability and clipboard handling.

LangChain version 1.2.17 has been released with a new feature adding a `respond` decision to the HITL (Human-in-the-Loop) middleware. This update enhances the middleware's decision-making capabilities by allowing systems to respond directly within the human-in-the-loop workflow. The release builds on version 1.2.16 with focused improvements to middleware functionality.

OpenClaw v2026.4.29-beta.4 introduces significant enhancements across messaging, memory, provider coverage, and reliability. Key additions include active-run steering by default, a people-aware wiki with provenance views, NVIDIA provider onboarding, and improved gateway/channel reliability. Security improvements include OpenGrep scanning and sharper GHSA triage policies, while multiple channel fixes address Slack, Telegram, Discord, WhatsApp, and Teams edge cases.

OpenClaw v2026.4.29 is a major release introducing active-run steering for messaging, people-aware memory wiki with provenance tracking, expanded provider coverage (NVIDIA, Bedrock), and enhanced reliability across gateway, channels, and security. Key improvements include opt-in follow-up commitments with heartbeat delivery, per-conversation Active Memory filters, faster model manifest paths, and comprehensive channel fixes for Slack, Telegram, Discord, WhatsApp, and Teams. Security enhancements add OpenGrep scanning and safer exec/pairing handling.

crewAI v1.14.4 introduces enhanced persistence customization, expanded cloud provider support (Azure OpenAI, Vertex AI), and new research tools (Tavily, You.com MCP). The release includes 12 bug fixes addressing JSON handling, message preservation, credential forwarding, and multimodal input support. Documentation updates cover E2B and Daytona sandbox tools.

OpenClaw v2026.4.29-beta.2 introduces significant enhancements across messaging, memory, provider coverage, and reliability. Key additions include active-run steering for messaging, a people-aware wiki with provenance tracking, NVIDIA provider onboarding, and improved channel resilience across Slack, Telegram, Discord, and others. Security improvements include OpenGrep scanning and stricter tool-scope handling, while operational reliability focuses on slow-host startup diagnostics and session recovery.

langchain-perplexity v1.2.0 introduces PerplexityEmbeddings support and overhauls the integration with the official Perplexity SDK and Search API. The release includes content-block-centric streaming improvements, dependency updates (langsmith, pillow, pytest), security patches (CVE-2026-4539 via pygments), and standardized integration testing across partners. Multiple maintenance updates ensure compatibility with langchain-core 1.2.21+ and improve code quality through type checking and documentation enhancements.

OpenClaw v2026.4.27 introduces major enhancements across Codex Computer Use setup, new provider integrations (DeepInfra, Tencent Yuanbao, QQBot), and a shift toward manifest-first plugin metadata architecture. Key improvements include GPU passthrough for Docker sandboxes, authenticated node presence tracking for iOS/Android, outbound proxy routing, and comprehensive reliability fixes across Telegram, Slack, and gateway startup. The release emphasizes reducing boot overhead through manifest-driven plugin discovery and model catalogs.

crewAI v1.14.4a1 is a pre-release update focusing on bug fixes and documentation improvements. Key fixes address LLM chat failures, message state management in executors, trained-agent file handling, multimodal input support, and JSON serialization issues. The release includes new documentation for sandbox tools (E2B, Daytona), Vertex AI setup, and You.com MCP integration, plus security updates to litellm.

OpenAI Agents Python v0.14.8 is a maintenance release that fixes two critical issues: preserving MCP re-export import errors and properly delimiting sandbox prompt instruction sections. The release includes documentation improvements and welcomes a new contributor to the project.

Claude Code v2.1.122 introduces Bedrock service tier selection via environment variable, PR URL resume functionality across multiple Git platforms, improved MCP server management with duplicate detection, and numerous bug fixes. Key improvements include OpenTelemetry enhancements for better observability, fixes for session branching, model configuration, and terminal/voice mode stability. The release addresses issues with structured outputs, token counting, image resizing, and various UI/UX problems.

langchain-anthropic version 1.4.2 is released with critical fixes and new features. Key updates include restoration of `cache_control` functionality on non-direct subclasses, bumped minimum core versions for compatibility, and implementation of content-block-centric streaming (v2). The release also includes CI improvements and standardized integration test invocation across partners.