diff --git a/HISTORY b/HISTORY
index f37553a3..e09dc5fb 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,13 +1,14 @@
 SnapRAID HISTORY
 ================
 
-3.1 2013/4
+3.1 2013/5
 ==========
  * Direct use of Windows API for disk access to improve error reporting.
  * If the 'fix' process is aborted, renames to .unrecoverable all the new
    files created, to allow to reuse again the '-m, --filter-missing' flag.
  * In Windows don't exclude anymore system files. Only system directories are
    excluded.
+ * In Windows applies filters in case insensitive way.
  * The Windows binaries are now built with gcc 4.7.2.
 
 3.0 2013/3