Release 1.4.0 - #536
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This release repairs the `subscriptions/listen` stream: a host that buffers its responses, the documented Rails controller pattern among them, can decline the method with `serve_subscriptions_listen: false` instead of answering a modern client with a streaming body it cannot render, and the stream's ordering guarantees are enforced - no notification before the acknowledgement, none after the graceful closing result. The new keyword argument is what makes this a minor release; everything else is a bug fix. The controller-pattern crash is a regression from 1.2.0, where the modern lifecycle began answering `subscriptions/listen` that earlier versions had refused as an unknown method, and it fails quietly: only the notification stream breaks, so tool calls keep working.
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@modelcontextprotocol/ruby-sdk
This release repairs the
subscriptions/listenstream: a host that buffers its responses, the documented Rails controller pattern among them, can decline the method withserve_subscriptions_listen: falseinstead of answering a modern client with a streaming body it cannot render, and the stream's ordering guarantees are enforced - no notification before the acknowledgement, none after the graceful closing result.The new keyword argument is what makes this a minor release; everything else is a bug fix. The controller-pattern crash is a regression from 1.2.0, where the modern lifecycle began answering
subscriptions/listenthat earlier versions had refused as an unknown method, and it fails quietly: only the notification stream breaks, so tool calls keep working.Checklist