Highlight new requirement

Change-Id: I45f9b5f4d355eae889a3cd8725d1188ff9ca8720

diff --git a/RELEASE-NOTES-1.27 b/RELEASE-NOTES-1.27
index 9b77cd1..039aa05 100644 (file)
--- a/RELEASE-NOTES-1.27
+++ b/RELEASE-NOTES-1.27
@@ -11,7 +11,7 @@ HHVM 3.1. Additionally, the following PHP extensions are required:
 * ctype
 * iconv
 * json
-* mbstring
+* mbstring (new requirement in 1.27)
 * xml
 
 === Configuration changes in 1.27 ===