diff --git a/doc/history.qbk b/doc/history.qbk
index e4402ef..01aa6c4 100644
--- a/doc/history.qbk
+++ b/doc/history.qbk
@@ -10,6 +10,7 @@ http://www.boost.org/LICENSE_1_0.txt)
 [heading 1.9]
 
 * Fixes for `BOOST_COMP_NVCC*` predefs. (from Benjamin Worpitz)
+* Add specific version information for Cygwin OS predef. (from James E. King III)
 
 [heading 1.8]