Update GraphDef version to 566.

PiperOrigin-RevId: 338996834
Change-Id: Id8787d61d842c3affa0b0071207017af830e38e3
diff --git a/tensorflow/core/public/version.h b/tensorflow/core/public/version.h
index cbef432..9ba60f6 100644
--- a/tensorflow/core/public/version.h
+++ b/tensorflow/core/public/version.h
@@ -108,7 +108,7 @@
 
 #define TF_GRAPH_DEF_VERSION_MIN_PRODUCER 0
 #define TF_GRAPH_DEF_VERSION_MIN_CONSUMER 0
-#define TF_GRAPH_DEF_VERSION 565  // Updated: 2020/10/25
+#define TF_GRAPH_DEF_VERSION 566  // Updated: 2020/10/26
 
 // Checkpoint compatibility versions (the versions field in SavedSliceMeta).
 //