add 2.11 to version docs (#3267)

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Author: lennyburdette

docs/source/schema-design/federated-schemas/reference/versions.mdx

@@ -19,13 +19,24 @@ For a comprehensive changelog for Apollo Federation and its associated libraries
     The example above must target at least Federation v2.3, because the `@interfaceObject` directive was introduced in that version.
 
     <Note>
-    
+
     Before you increment a subgraph's federation version, update your router and build pipeline. For details, see [Updating your graph safely](/graphos/platform/graph-management/updates).
 
     </Note>
 
 - If you maintain a [subgraph-compatible library](/graphos/reference/federation/compatible-subgraphs), consult this article to stay current with recently added directives. All of these directive definitions are also listed in the [subgraph specification](/graphos/reference/federation/subgraph-spec/#subgraph-schema-additions).
 
+## v2.11
+
+<hr/>
+
+| First release | Available in GraphOS? | Minimum router version |
+| ------------- | --------------------- | ---------------------- |
+| **June 2025** | **Yes** | **`2.3.0`** |
+
+Federation v2.11 is a prerequisite for the Connector specification version 0.2.
+[Learn more.](/graphos/schema-design/connectors/directives)
+
 ## v2.10
 
 <hr/>
@@ -54,10 +65,10 @@ Introduced. [Learn more](/federation/federated-schemas/federated-directives#cost
 ```graphql showLineNumbers=false disableCopy=true
 directive @cost(weight: Int!) on
   | ARGUMENT_DEFINITION
-  | ENUM  
-  | FIELD_DEFINITION   
-  | INPUT_FIELD_DEFINITION  
-  | OBJECT   
+  | ENUM
+  | FIELD_DEFINITION
+  | INPUT_FIELD_DEFINITION
+  | OBJECT
   | SCALAR;
 ```