Release 1.2.0 - #518
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This release completes the SEP-2575 stateless lifecycle of the 2026-07-28 specification, together with the SEP-2322, SEP-2549, and SEP-2243 features that revision builds on. Several entries under "Changed" are incompatible with 1.1.0 and ship in a minor release under the spec-conformance and security exceptions in VERSIONING.md. Servers no longer echo 2026-07-28 from `initialize` and counter-offer 2025-11-25 instead, `Configuration` accepts only handshake versions for its `protocol_version` pin, server-to-client requests are bounded by a timeout and refused outright on the modern lifecycle, the client bounds automatic pagination and its total SSE reconnection wait, and `prompts/get` answers Invalid Params where it used to answer Internal Error. Closes modelcontextprotocol#512.
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@modelcontextprotocol/ruby-sdk
This release completes the SEP-2575 stateless lifecycle of the 2026-07-28 specification, together with the SEP-2322, SEP-2549, and SEP-2243 features that revision builds on.
Several entries under "Changed" are incompatible with 1.1.0 and ship in a minor release under the spec-conformance and security exceptions in VERSIONING.md. Servers no longer echo 2026-07-28 from
initializeand counter-offer 2025-11-25 instead,Configurationaccepts only handshake versions for itsprotocol_versionpin, server-to-client requests are bounded by a timeout and refused outright on the modern lifecycle, the client bounds automatic pagination and its total SSE reconnection wait, andprompts/getanswers Invalid Params where it used to answer Internal Error.Closes #512.
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