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OpenJul 20, 2026
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•Last updated 10% complete
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0 of 18 selected 0 issues of 18 selected
Cached-credential reuse via ClientOAuthOptions.ClientId fails: no way to specify token_endpoint_auth_method
enhancementNew feature or requestNew feature or requestStatus: Open.#1611 In modelcontextprotocol/csharp-sdk;SDK Implementation of Authorization is not compatible with the specification. code_challenge_methods_supported is handled incorrectly
bugSomething isn't workingSomething isn't workingneeds confirmationUnclear if still relevantUnclear if still relevantStatus: Open.#730 In modelcontextprotocol/csharp-sdk;ClientOAuthProvider throws "Client ID is not available" on cold start when a refresh token is persisted but client ID is not
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1658 In modelcontextprotocol/csharp-sdk;Identity Assertion Grant uses raw authorization server URL as token-exchange audience
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1617 In modelcontextprotocol/csharp-sdk;- Status: Open (in progress).modelcontextprotocol/csharp-sdknumber 1615#1615 In modelcontextprotocol/csharp-sdk;
Token/metadata caches in auth providers are not thread-safe
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1595 In modelcontextprotocol/csharp-sdk;Add prior-knowledge connection path for modern protocol clients
enhancementNew feature or requestNew feature or requestP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1696 In modelcontextprotocol/csharp-sdk;Add a public subscriptions/listen server handler for custom streaming
enhancementNew feature or requestNew feature or requestP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1662 In modelcontextprotocol/csharp-sdk;AutoDetecttransport hides the real error: surfaces 405 to the user when the server actually returned 415bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1526 In modelcontextprotocol/csharp-sdk;Stdio requests with deeply nested params can remain pending while the server remains healthy
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1614 In modelcontextprotocol/csharp-sdk;Cancellation support via CancellationToken's fails
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsready for workHas enough information to startHas enough information to startStatus: Open.#1365 In modelcontextprotocol/csharp-sdk;OAuth authentication request fails with MS Entra-ID
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsready for workHas enough information to startHas enough information to startStatus: Open.#648 In modelcontextprotocol/csharp-sdk;Make server extension handlers composable with filters and subscriptions
enhancementNew feature or requestNew feature or requestP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsready for workHas enough information to startHas enough information to startStatus: Open.#1704 In modelcontextprotocol/csharp-sdk;WWW-Authenticate header does not contain a resource metadata params
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1050 In modelcontextprotocol/csharp-sdk;Robustly parse quoted WWW-Authenticate parameters
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1088 In modelcontextprotocol/csharp-sdk;OAuth token refresh fails with AADSTS9010010
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1587 In modelcontextprotocol/csharp-sdk;Can't implement a CIMD client if auth provider doesn't put "none" first in it's list of supported token auth methods
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#1612 In modelcontextprotocol/csharp-sdk;In the StreamableHttp mode MCP server, Scoped type dependencies are not properly injected into classes marked with [McpServerToolType].
bugSomething isn't workingSomething isn't workingP2Moderate issues, valuable feature requestsModerate issues, valuable feature requestsStatus: Open.#544 In modelcontextprotocol/csharp-sdk;