diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 6077ef25fc9c3d66c1153437f696bcbd6c5072c3..bc19689ec490e03a2781f1eb2dbd9f7181921838 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -29,6 +29,7 @@ This release includes the following bugfixes:
  o improved NSS detection in configure
  o cookie expiry date at 1970-jan-1 00:00:00
  o libcurl-OpenSSL failed to verify some certs with Subject Alternative Name
+ o builds thread-safer on HPUX
 
 This release includes the following known bugs: