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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
HomeDocsModel Context Protocol 20 Oct 2026
One change · mcp

Understanding MCP clients changeddocs/draft/learn/client-concepts

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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113113 
114114### Roots
115115 
116<Warning>
117 Roots are [deprecated](/specification/draft/deprecated) as of protocol version
118 `2026-07-28` and scheduled for removal. New implementations should pass
119 directories or files via tool parameters, resource URIs, or server
120 configuration instead.
121</Warning>
116> [!WARNING]
117>
118> Roots are [deprecated](/specification/draft/deprecated) as of protocol version
119> `2026-07-28` and scheduled for removal. New implementations should pass
120> directories or files via tool parameters, resource URIs, or server
121> configuration instead.
122122 
123123Roots define filesystem boundaries for server operations, allowing clients to specify which directories servers should focus on.
124124 
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169169 
170170### Sampling
171171 
172<Warning>
173 Sampling is [deprecated](/specification/draft/deprecated) as of protocol
174 version `2026-07-28` and scheduled for removal. New implementations should
175 integrate directly with LLM provider APIs instead.
176</Warning>
172> [!WARNING]
173>
174> Sampling is [deprecated](/specification/draft/deprecated) as of protocol
175> version `2026-07-28` and scheduled for removal. New implementations should
176> integrate directly with LLM provider APIs instead.
177177 
178178Sampling allows servers to request language model completions through the client, enabling agentic behaviors while maintaining security and user control.
179179 
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