Introduced sequential extraction flag to circumvent troubles with parallel extraction

Change-Id: I7fb50e60ff527c7e79b59fac3cf957fdf4b989ac
diff --git a/Changes b/Changes
index 2bc208c..06eeff2 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,6 @@
-0.28 2017-04-11
+0.28 2017-04-12
         - Improved overwriting behaviour for unzip.
+        - Introduced --sequential-extraction flag.
 
 0.27 2017-04-10
         - Support configuration files.