MCP Servers

Claude Code v2.1.146 introduces a command rename from `/simplify` to `/code-review` with effort levels, fixes critical regressions in Windows PowerShell and MCP pagination, and resolves multiple UI/UX issues including full-screen strobing, permission re-prompting, and auto-updater reliability. The release also improves diff rendering performance and fixes several edge cases in background sessions, theme management, and multi-agent configurations.

OpenClaw v2026.5.20-beta.1 introduces Discord voice session improvements with user following and profile context, adds a bundled Policy plugin for channel conformance checks, enables per-agent local model configuration, and implements device-code OAuth for xAI. The release includes 40+ bug fixes spanning WhatsApp, browser image handling, cron scheduling, agent messaging, plugin performance, and platform-specific improvements across Discord, Mattermost, Matrix, and Windows.

OpenClaw v2026.5.19-alpha.1 introduces significant enhancements across agents, dependencies, Docker/Podman support, gateway performance, plugins, skills, browser automation, QA testing, and platform-specific features. Key updates include refactored agent fixes with clean bounded refactors, new skill capabilities (meme-maker, Python debugging, node inspector), improved Settings UI on Mac, enhanced browser dialog handling, and comprehensive QA-Lab runtime parity scenarios. The release also addresses critical fixes for port validation, plugin tool auth profiles, and memory search performance optimization.

Claude Code v2.1.145 introduces JSON output for session listing, enhanced plugin discovery with command/agent/skill previews, improved OTEL tracing with agent_id attributes, and fixes for critical issues including permission bypass vulnerabilities, MCP command errors, voice input, task rendering, and cross-platform compatibility. The release also adds GitHub repo/PR detection in status lines and improves terminal UI responsiveness with mouse support in fullscreen mode.

OpenClaw v2026.5.19-beta.2 release introduces improvements to agent fix strategies, updates critical dependencies including @openclaw/proxyline to 0.3.3 and Pi packages to 0.75.1, raises Node.js minimum version to 22.19, and enhances Docker/Podman image building with a new runtime-neutral APT packages build argument. Gateway/ACPX startup probe handling is also improved to better track resource costs in restart traces.

Claude Code v2.1.144 introduces background session management improvements, including `/resume` support for sessions started via `claude --bg`, elapsed duration notifications, and model selection changes that now apply per-session. The release fixes critical bugs affecting terminal rendering, file handling, MCP server integration, and remote session authentication, while improving performance for startup times and streaming recovery.

OpenClaw v2026.5.16-beta.4 introduces security audit suppressions, improved subagent handoff workflows, new media generation providers (fal, OpenRouter), enhanced Control UI with quota usage display, Mac app remote preconfiguration, xAI Grok OAuth support, and localized CLI setup for multiple languages. The release includes significant fixes for memory scanning, provider authentication, gateway performance, and various platform-specific issues across Slack, Telegram, WhatsApp, and GitHub Copilot integrations.

OpenClaw v2026.5.16-beta.3 introduces xAI Grok OAuth authentication, enhanced cron scheduling with wait controls, multilingual onboarding support, and significant performance improvements through skill caching. The release includes numerous fixes for gateway diagnostics, session management, channel integrations (Telegram, Discord, Matrix, Slack), and context handling to improve reliability and security across the platform.

OpenClaw v2026.5.16-beta.2 introduces xAI Grok OAuth authentication, enhanced cron scheduling with wait/timeout controls, multilingual CLI onboarding (English, Simplified/Traditional Chinese), skill caching optimizations, and Telegram ambient chat handling. The release includes 40+ fixes addressing media MIME validation, plugin metadata integrity, session persistence, MCP tool cancellation, and config repair workflows to improve stability and reliability.

OpenClaw v2026.5.16-beta.1 is a maintenance and stability release featuring improved skill caching, multi-language onboarding support, and numerous bug fixes across agents, providers, and integrations. Key improvements include resolved token counting for OpenAI APIs, enhanced Telegram reliability, better config validation, and fixes for critical issues in cron jobs, Discord, LINE, and local agent execution. The release strengthens platform robustness through better error handling, lifecycle management, and provider compatibility.

LangChain version 1.3.1 has been released with a focus on bug fixes and stability improvements. The primary change addresses an issue with Bedrock provider aliases in summarization token checking. This patch release ensures better compatibility and reliability for users working with AWS Bedrock integration in LangChain's summarization features.

OpenClaw v2026.5.14-beta.2 introduces significant enhancements to agent configuration, channel integrations, and platform stability. Key improvements include per-agent bootstrap profile overrides, WhatsApp status reactions, voice call support via Telnyx, lazy-loading of Canvas modules for faster startup, and comprehensive dependency management. The release also strengthens maintainer tooling, adds Docker-based release validation, and fixes critical issues in provider routing, media handling, and protocol compilation.

Claude Code v2.1.142 introduces enhanced agent configuration flags for background sessions, upgrades fast mode to Opus 4.7, improves plugin skill surfacing and LSP server visibility, and fixes critical issues with daemon stability, background session persistence, and cross-platform compatibility. Key improvements include better MCP tool timeout handling, macOS sleep/wake resilience, Windows network drive support, and numerous UI/UX refinements for plugin management and session handling.

OpenClaw v2026.5.14-beta.1 introduces significant improvements to dependency management, UI/i18n tooling, maintainer workflows, and channel integrations. Key additions include WhatsApp status reactions, voice call support via Telnyx, browser-local text sizing, and enhanced release validation through Docker user-journey lanes. The release also refactors Codex CLI integration, improves gateway startup tracing, and fixes critical issues with UTF-16 surrogates, HTTP/2 session errors, and memory file discovery.

OpenClaw v2026.5.12 is a maintenance release focused on dependency externalization, UI improvements, and stability fixes. Key changes include externalizing AWS Bedrock and plugin dependencies to reduce bloat, adding persistent auto-scroll controls in the UI, implementing ACP fallback backends, and fixing numerous issues across Telegram, Slack, authentication, and session management. The release addresses 40+ bug fixes spanning security, performance, and user experience improvements.

OpenClaw v2026.5.12-beta.8 introduces significant improvements to dependency management by externalizing AWS SDK and plugin dependencies, enhances user control with persistent auto-scroll modes in the UI, adds fallback runtime backends for ACP, and fixes numerous issues across Telegram integration, session management, security sandboxing, and media handling. The release focuses on performance optimization, security hardening, and improved reliability across multiple subsystems including CLI, gateway, and agent spawning.

OpenClaw v2026.5.12-beta.5 is a comprehensive bug-fix release addressing gateway protocol improvements, security hardening, plugin dependency management, channel integrations (WhatsApp, Telegram, Discord, WeCom), session transcript redaction, and agent execution reliability. Key fixes include OAuth token exchange for Copilot, device pairing approval requirements, media size enforcement across plugins, and LLM idle watchdog timeout escalation. The release improves stability across multiple integrations while strengthening security controls for trusted proxies, admin scopes, and sensitive data redaction.

langchain-core version 1.4.0 release includes numerous bug fixes, performance improvements, and feature additions across the LangChain core library. Key updates involve hardening security (SSRF protections, deserialization safety), improving streaming with content-block-centric v2 support, enhancing tracer metadata handling, and updating dependencies. The release spans from version 0.3.86 through 1.4.0 with multiple intermediate releases (1.2.x, 1.3.x series) containing incremental improvements to tool handling, token counting, and model integrations.

Claude Code v2.1.139 introduces significant new features including an agent view for managing multiple sessions, a `/goal` command for multi-turn task completion, and enhanced MCP server support with environment variables. The release includes numerous UX improvements like transcript navigation shortcuts, plugin token cost estimation, and fixes for critical issues such as credential deadlocks, memory leaks in MCP servers, and terminal interaction bugs.

OpenClaw v2026.5.10-beta.3 introduces stricter build and TypeScript checks, upgrades to pnpm 11, and adds significant enhancements across Slack, Discord voice, models, and the Plugin SDK. Key improvements include provider-level local service startup, context mapping, Slack link/media preview controls, realtime voice diagnostics, and structured media extraction capabilities. Multiple bug fixes address session management, authentication latency, and cross-platform compatibility.