MCP C# SDK 2.3
ServerInfo is now nullable
MCP C# SDK 2.3.0 released: ServerInfo is now nullable
MCP C# SDK 2.3.0 brings improvements to HTTP discovery, OAuth, stdio shutdown and the ordering of server tools, prompts and resources. It also includes a source-compatibility change: McpClient.ServerInfo is now nullable. Projects that read this property may see new nullable warnings or fail warnings-as-errors builds.