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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
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Transports changedspecification/2025-03-26/basic/transports

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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4747 
4848## Streamable HTTP
4949 
50<Info>
51 This replaces the [HTTP+SSE
52 transport](/specification/2024-11-05/basic/transports#http-with-sse) from
53 protocol version 2024-11-05. See the [backwards compatibility](#backwards-compatibility)
54 guide below.
55</Info>
50> [!NOTE]
51>
52> This replaces the [HTTP+SSE
53> transport](/specification/2024-11-05/basic/transports#http-with-sse) from
54> protocol version 2024-11-05. See the [backwards compatibility](#backwards-compatibility)
55> guide below.
5656 
5757In the **Streamable HTTP** transport, the server operates as an independent process that
5858can handle multiple client connections. This transport uses HTTP POST and GET requests.
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