Update transport version

Author: pawankartik-elastic

server/src/main/java/org/elasticsearch/action/search/SearchRequest.java

@@ -116,8 +116,12 @@ public class SearchRequest extends LegacyActionRequest implements IndicesRequest
      * enabling synthetic source natively in the index.
      */
     private boolean forceSyntheticSource = false;
+
+    @Nullable
     private String projectRouting;
 
+    private static final TransportVersion SEARCH_PROJECT_ROUTING = TransportVersion.fromName("search_project_routing");
+
     public SearchRequest() {
         this.localClusterAlias = null;
         this.absoluteStartMillis = DEFAULT_ABSOLUTE_START_MILLIS;
@@ -293,6 +297,11 @@ public SearchRequest(StreamInput in) throws IOException {
         } else {
             forceSyntheticSource = false;
         }
+        if (in.getTransportVersion().supports(SEARCH_PROJECT_ROUTING)) {
+            this.projectRouting = in.readOptionalString();
+        } else {
+            this.projectRouting = null;
+        }
     }
 
     @Override
@@ -339,6 +348,9 @@ public void writeTo(StreamOutput out, boolean skipIndices) throws IOException {
                 throw new IllegalArgumentException("force_synthetic_source is not supported before 8.4.0");
             }
         }
+        if (out.getTransportVersion().supports(SEARCH_PROJECT_ROUTING)) {
+            out.writeOptionalString(this.projectRouting);
+        }
     }
 
     @Override

server/src/main/resources/transport/definitions/referable/search_project_routing.csv

@@ -0,0 +1 @@
+9218000

server/src/main/resources/transport/upper_bounds/9.3.csv

@@ -1 +1 @@
-resharding_shard_summary_in_esql,9217000
+search_project_routing,9218000