diff --git a/NEWS b/NEWS
index 29ca2883..6d0d940d 100644
--- a/NEWS
+++ b/NEWS
@@ -20,6 +20,7 @@
     using Xcode 5.1, and stopped supporting Xcode 4.
   * Improved Range.new performance. 20% faster.
   * Improved Array#flatten performance. 70% faster.
+  * Improved Time#strftime performance. ~30% faster.
 
 = RubyMotion 2.17 =
 
diff --git a/vm b/vm
index 9e974dfc..f05f98a2 160000
--- a/vm
+++ b/vm
@@ -1 +1 @@
-Subproject commit 9e974dfc074a3059c1639054fb4e9ac1a84a887f
+Subproject commit f05f98a2878adbceb69245e817edee58e9e64d48