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Pull requests: modelcontextprotocol/csharp-sdk

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Pull requests list

Hide experimental types from external source generators using internal property pattern
#1301 opened Feb 17, 2026 by MackinnonBuck Loading…
1
7
Reduce flakiness in long-running stateless HTTP tool timeout test
#1300 opened Feb 17, 2026 by Copilot AI Loading…
@halter73
3
Allow .NET 8 projects to consume the MCP SDK NO MERGE PR should not be merged until the label is removed
#1297 opened Feb 17, 2026 by dagirard • Draft
6 of 9 tasks
Add Extensions support to ClientCapabilities and ServerCapabilities (SEP-2133)
#1292 opened Feb 17, 2026 by Copilot AI Loading…
10 tasks done
@stephentoub
10
Add DeleteStreamsForSessionAsync to ISseEventStreamStore
#1288 opened Feb 16, 2026 by mikekistler Loading…
1
Bump the testing-frameworks group with 1 update dependencies Pull requests that update a dependency file
#1281 opened Feb 16, 2026 by dependabot bot Loading…
1
Validate MCP-Protocol-Version header in Streamable HTTP handler
#1277 opened Feb 15, 2026 by Copilot AI Loading…
7 tasks done
1
@stephentoub
19
Fix StdioServerTransport.DisposeAsync() hang: CancellableStdinStream missing Dispose override
#1276 opened Feb 15, 2026 by Copilot AI Loading…
1
@stephentoub
2
Add validation and error signaling guidance to MCP tool XML docs
#1275 opened Feb 15, 2026 by Copilot AI Loading…
8 tasks done
1
@stephentoub
3
Avoid intermediate strings in MCP transport serialization
#1274 opened Feb 15, 2026 by Copilot AI Loading…
1
@stephentoub
9
Update tests for @modelcontextprotocol/server-everything 2026.1.26
#1273 opened Feb 15, 2026 by Copilot AI Loading…
5 tasks done
1
@stephentoub
8
Add OutputSchemaType and OutputSchema for tools returning CallToolResult
#1272 opened Feb 14, 2026 by Copilot AI Loading…
17 tasks done
1
@stephentoub
20
Add ISessionMigrationHandler
#1270 opened Feb 14, 2026 by MackinnonBuck Loading…
2
Add protected resource metadata response inspect & modify support
#1262 opened Feb 11, 2026 by FICTURE7 Loading…
5 of 9 tasks
9
Hide experimental properties from the JSON source generator to avoid MCPEXP001 diagnostics
#1260 opened Feb 10, 2026 by MackinnonBuck • Draft
1
9
ClientOAuthProvider.Scopes have priority again (#1236)
#1238 opened Feb 2, 2026 by halllo Loading…
4 of 9 tasks
5
Add cross-platform netstandard2.0 test coverage
#1235 opened Feb 2, 2026 by Copilot AI Loading…
@eiriktsarpalis
20
Fix JsonSerializerOptions without TypeInfoResolver
#1221 opened Jan 30, 2026 by Copilot AI Loading…
@stephentoub
4
Support https+http scheme for .NET Aspire service discovery
#1180 opened Jan 27, 2026 by bbartels Loading…
5 of 9 tasks
9
Add distributed session support via ISessionStore interface
#1168 opened Jan 20, 2026 by dota-devy Loading…
2
WIP: Reduce copies, eliminate a lot of UTF-16 transcoding NO MERGE PR should not be merged until the label is removed
#1120 opened Dec 24, 2025 by Tyler-IN • Draft
7 of 9 tasks
3
Add UseMcpClient
#1086 opened Dec 11, 2025 by jozkee Loading…
39
Use ReadOnlyMemory<byte> for binary data to eliminate UTF-16 transcoding
#1070 opened Dec 5, 2025 by Copilot AI Loading…
10 tasks done
1
@stephentoub
64
Add back EverythingServer for stdio
#950 opened Nov 7, 2025 by asklar Loading…
5 of 9 tasks
1
6
Add configurable JsonSerializerOptions and SchemaCreateOptions to McpServerOptions
#925 opened Oct 30, 2025 by Copilot AI • Draft
1
@eiriktsarpalis
20
ProTip! Follow long discussions with comments:>50.