Add 2025-11-25 spec version to STDIO transport

Signed-off-by: Dariusz Jędrzejczyk <2554306+chemicL@users.noreply.github.com>

Author: chemicL

mcp-core/src/main/java/io/modelcontextprotocol/client/transport/StdioClientTransport.java

@@ -23,6 +23,7 @@
 import io.modelcontextprotocol.spec.McpClientTransport;
 import io.modelcontextprotocol.spec.McpSchema;
 import io.modelcontextprotocol.spec.McpSchema.JSONRPCMessage;
+import io.modelcontextprotocol.spec.ProtocolVersions;
 import io.modelcontextprotocol.util.Assert;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -400,4 +401,10 @@ public <T> T unmarshalFrom(Object data, TypeRef<T> typeRef) {
 		return this.jsonMapper.convertValue(data, typeRef);
 	}
 
+	@Override
+	public List<String> protocolVersions() {
+		return List.of(ProtocolVersions.MCP_2024_11_05, ProtocolVersions.MCP_2025_03_26,
+				ProtocolVersions.MCP_2025_06_18, ProtocolVersions.MCP_2025_11_25);
+	}
+
 }

mcp-core/src/main/java/io/modelcontextprotocol/server/transport/StdioServerTransportProvider.java

@@ -84,7 +84,8 @@ public StdioServerTransportProvider(McpJsonMapper jsonMapper, InputStream inputS
 
 	@Override
 	public List<String> protocolVersions() {
-		return List.of(ProtocolVersions.MCP_2024_11_05);
+		return List.of(ProtocolVersions.MCP_2024_11_05, ProtocolVersions.MCP_2025_03_26,
+				ProtocolVersions.MCP_2025_06_18, ProtocolVersions.MCP_2025_11_25);
 	}
 
 	@Override