diff --git a/doc/NEWS b/doc/NEWS
index ca0b2c29d6..0129c87c75 100644
--- a/doc/NEWS
+++ b/doc/NEWS
@@ -1,3 +1,8 @@
+: BigFloat
+
+  Imported courtesy of Shigeo Kobayashi.  Variable precision extension
+  library.
+
 : IO
 
   64bit off_t support by Janathan Baker.