Bump CHROMEOS_BUILD number for source branch master after creating branch factory-volteer-13600.B
diff --git a/chromeos/config/chromeos_version.sh b/chromeos/config/chromeos_version.sh
index 2ec7004..f7e881d 100755
--- a/chromeos/config/chromeos_version.sh
+++ b/chromeos/config/chromeos_version.sh
@@ -15,7 +15,7 @@
 if [ -z "${FLAGS_version}" ]; then
   # Release Build number.
   # Increment by 1 for every release build.
-  CHROMEOS_BUILD=13620
+  CHROMEOS_BUILD=13621
 
   # Release Branch number.
   # Increment by 1 for every release build on a branch.