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Sweep 29 Sep 2026 · 18:10Z Build v2.1.285 506 read Stable v2.1.277 Latest v2.1.284 Next v2.1.285 Feeds RSS JSON llms.txt llms-full.txt Unofficial
One change · mcp

SEP-2260: Require Server requests to be associated with a Client request. changedseps/2260-Require-Server-requests-to-be-associated-with-Client-requests

Upstream edited this page at 2 Aug 2026 21:13 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 28 Sep 2026 22:07 UTC.

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2020 requirements.
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23| Field | Value |
24| ------------- | ------------------------------------------------------------------------------- |
25| **SEP** | 2260 |
26| **Title** | Require Server requests to be associated with a Client request. |
27| **Status** | Final |
28| **Type** | Standards Track |
29| **Created** | 2026-02-16 |
30| **Author(s)** | MCP Transports Working Group |
31| **Sponsor** | [@CaitieM20](https://github.com/CaitieM20) - Caitie McCaffrey |
32| **PR** | [#2260](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2260) |
23| Field | Value |
24| - | - |
25| **SEP** | 2260 |
26| **Title** | Require Server requests to be associated with a Client request. |
27| **Status** | Final |
28| **Type** | Standards Track |
29| **Created** | 2026-02-16 |
30| **Author(s)** | MCP Transports Working Group |
31| **Sponsor** | [@CaitieM20](https://github.com/CaitieM20) - Caitie McCaffrey |
32| **PR** | [#2260](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2260) |
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