diff --git a/include/boost/config/compiler/visualc.hpp b/include/boost/config/compiler/visualc.hpp
index ef00359f..1c1a7a6b 100644
--- a/include/boost/config/compiler/visualc.hpp
+++ b/include/boost/config/compiler/visualc.hpp
@@ -284,7 +284,7 @@
 #endif
 
 //
-// last known and checked version is 19.00.23107 (VC++ 2015 RTM):
+// last known and checked version is 19.00.23026 (VC++ 2015 RTM):
 #if (_MSC_VER > 1900)
 #  if defined(BOOST_ASSERT_CONFIG)
 #     error "Unknown compiler version - please run the configure tests and report the results"