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• v3.10.0 390cafaa11

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  v3.10.0 Stable

  ric_harvey released this 2026-03-27 21:36:24 +00:00 | 139 commits to main since this release

  What's changed

  Added

  • Streamable HTTP transport support: MCP server now supports Streamable HTTP via MCP_TRANSPORT=http env var, using FastMCP's canonical "http" transport string. Endpoint moves from /sse to /mcp when enabled. Community contribution from @timstoop (PR #4)
  • MCP_TRANSPORT env var: Controls which transport the MCP server uses. Accepts sse (default) or http. Existing deployments continue to work without changes

  Deprecated

  • SSE transport: SSE remains the default in 3.10 but will be removed in a future release. A deprecation warning is logged on startup when using SSE. All connection guides updated with migration instructions

  Fixed

  • Bandit B310 security finding (v3.9.5): Validate URL scheme is http or https before calling urllib.request.urlopen in the RSS worker page fetcher
  • Version string out of sync (v3.9.4): __version__ now correctly tracks the release version
  • Trailing code fence in reverse-proxy docs

  Changed

  • All connection guides updated to show SSE as default with GFM deprecation warnings and Streamable HTTP migration instructions
  • Kiro guide type field corrected from "streamable-http" to "http" for consistency with FastMCP docs

  Migration

  No action required for existing deployments — SSE remains the default. To opt in to Streamable HTTP early:

  1. Set MCP_TRANSPORT=http in your .env
  2. Update your client config: "type": "http" with URL .../mcp instead of "type": "sse" with .../sse

  See the connection guides for per-agent instructions.

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