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StdioServer: messages should be processed concurrently

internal-usersIssues and PRs raised by internal usersIssues and PRs raised by internal users

Status: Open.

Bug

#572 In modelcontextprotocol/kotlin-sdk;

· kpavlov opened on Mar 2, 2026

StreamableHTTP Client integration tests

tests

Status: Open.

Task

#332 In modelcontextprotocol/kotlin-sdk;

· kpavlov opened on Oct 23, 2025

feat: Verify MCP endpoints with authentication for Streamable HTTP transport, test for SSE transport

enhancementNew feature or requestNew feature or request

tests

Status: Draft (not ready).

modelcontextprotocol/kotlin-sdknumber 535

#535 In modelcontextprotocol/kotlin-sdk;

· kpavlov opened on Feb 18, 2026

feat: server transport state machine, concurrent request handling (#518, #564, #572)

refactoringMaking things betterMaking things better

Status: Draft (not ready).

modelcontextprotocol/kotlin-sdknumber 670

#670 In modelcontextprotocol/kotlin-sdk;

· kpavlov opened on Apr 2, 2026