diff --git a/mcp-core/src/main/java/io/modelcontextprotocol/spec/ProtocolVersions.java b/mcp-core/src/main/java/io/modelcontextprotocol/spec/ProtocolVersions.java
index d8cb913a5..4ec1424c1 100644
--- a/mcp-core/src/main/java/io/modelcontextprotocol/spec/ProtocolVersions.java
+++ b/mcp-core/src/main/java/io/modelcontextprotocol/spec/ProtocolVersions.java
@@ -20,4 +20,9 @@ public interface ProtocolVersions {
 	 */
 	String MCP_2025_06_18 = "2025-06-18";
 
+    /**
+     * MCP protocol version for 2025-11-25.
+     * https://modelcontextprotocol.io/specification/2025-11-25
+     */
+    String MCP_2025_11_25 = "2025-11-25";
 }