Release v1.4.1#1694
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jeffhandley merged 1 commit intoJul 9, 2026
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- Bump version from 1.4.0 to 1.4.1 - Add release-notes link to src/PACKAGE.md Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
halter73
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Jul 8, 2026
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Release v1.4.1
This release backports a memory-leak fix for HTTP/SSE-based MCP servers.
StreamableHttpServerTransportnow releases its Server-Sent Events responsestream reference as soon as a GET request ends, instead of holding it until the
session is disposed via explicit DELETE or idle timeout. Long-lived SSE clients
that disconnect without sending DELETE no longer pin the underlying Kestrel
connection and its associated memory-pool buffers (~20 MiB per session),
preventing the sustained memory growth that could accumulate under
connect/disconnect churn.
Release Notes
What's Changed
Acknowledgements
Full Changelog: v1.4.0...v1.4.1
API Compatibility Report
✅ All packages pass API compatibility validation against v1.0.0.
API Diff Report
No public API changes between v1.4.0 and v1.4.1.
ModelContextProtocol.Core
No API changes.
ModelContextProtocol
No API changes.
ModelContextProtocol.AspNetCore
No API changes.