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The Codex Changelog · Tuesday · 6 min

Local MCP Connection Sharing in Codex 0.166.0

Codex 0.166.0 introduces experimental connection sharing for local stdio MCP servers to eliminate duplicate processes, reduce memory bloat, and isolate request timeouts across chats. We explore how to configure the feature flag, navigate potential initialization panics with legacy servers, and review smaller fixes like the network-only doctor flag.

0:00-6:44
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Codex 0.166.0 introduces experimental connection sharing for local stdio MCP servers to eliminate duplicate processes, reduce memory bloat, and isolate request timeouts across chats. We explore how to configure the feature flag, navigate potential initialization panics with legacy servers, and review smaller fixes like the network-only doctor flag.

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