diff --git a/NEWS b/NEWS
index afb8702f..8b5c8307 100644
--- a/NEWS
+++ b/NEWS
@@ -21,6 +21,7 @@
     ~10% faster.
   * Improved performance of methods where accepts Regexp object. ~20% faster.
   * Improved String literals performance. ~60% faster.
+  * Improved String#{strip, rstrip, lstrip} performance. ~70% faster.
 
 = RubyMotion 2.22 =
 
diff --git a/vm b/vm
index 8e68f4ed..adcf8a31 160000
--- a/vm
+++ b/vm
@@ -1 +1 @@
-Subproject commit 8e68f4ed4582f8029461245b6b19b1c464f3ded5
+Subproject commit adcf8a31fca15ed9b0bec3d62ac6767ed4d2e6e5