github modelcontextprotocol/typescript-sdk 1.23.1
on GitHub

6 hours ago

Fixed:

  • Disabled SSE priming events to fix backwards compatibility - 1.23.x clients crash on empty SSE data (JSON.parse(""))

This is a patch for servers still on 1.23.x that were breaking clients not handling the the 2025-11-25 priming event behavior with empty SSE data fields. See #1233 for more details.

Full Changelog: 1.23.0...1.23.1

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