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Agents2026-08-30 · source-backed
v4.0.0b5, released August 28, introduces ClientGroup: one managed client per server, each negotiating independently, with collision-checked tool namespacing and call routing. That replaces fronting several servers with a proxy that forces one negotiated version across all of them. (GitHub) If you've been stuck on the oldest server's protocol era, this is the fix.
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The 1.4.0a2 alpha ships langchain.mcp, an MCPAdapter turning any MCP server into tools you hand straight to create_agent. Connection handling is FastMCP's rather than a reimplementation, so a URL, a local stdio script, an in-process FastMCP server, a multi-server config, or a...
PrefectHQ/fastmcp shipped Prefab UI (beta), MultiAuth, PropelAuth support, and Google GenAI sampling. Over 1M daily downloads. If you're building MCP servers, this is the de facto framework.
Before v4.1.15 on August 23, it only applied to tools also opted in individually, so flipping it appeared to do nothing. Anyone who left it on assuming it was inert has just widened their unattended tool surface across every connected server. (GitHub) Same release train fixed...
If you wrote an MCP server before July, it's on a protocol shape the maintainers have already removed. Not deprecated-with-a-migration-window. Removed from the spec. MCP lead maintainers David Soria Parra and Den Delimarsky published an updated roadmap on August 22, and the re...
Waishnav/devspace (4,247 stars, v1.0.8 August 25) runs a local Node server exposing read, edit, search and shell execution over MCP, reached through a reverse proxy tunnel like Cloudflare or ngrok, with password-gated owner approval per client. The pitch is turning ChatGPT int...
3,364 stars since its August 17 creation. Every action against a computer, file, MCP server or UI component routes through a single gateway that resolves the target, decides it against policy, writes an audit row, then acts or refuses while naming the rule. Each bot gets its o...
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