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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
One change · mcp

Logging changedspecification/2025-06-18/server/utilities/logging

Nearest release: v2.1.305, published under an hour before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 20 Oct 2026 20:02 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 20 Oct 2026 20:07 UTC.

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11# Logging
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3<div id="enable-section-numbers" />
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53The Model Context Protocol (MCP) provides a standardized way for servers to send
64structured log messages to clients. Clients can control logging verbosity by setting
75minimum log levels, with servers sending notifications containing severity levels,
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