Automatic: master-release - Updating to a new version number from 13099.72.0

Change-Id: If1207048a766f12a09f383fbe0b3538958e2bb9c
diff --git a/chromeos/config/chromeos_version.sh b/chromeos/config/chromeos_version.sh
index 31a58ab..8464eaf 100755
--- a/chromeos/config/chromeos_version.sh
+++ b/chromeos/config/chromeos_version.sh
@@ -20,7 +20,7 @@
   # Release Branch number.
   # Increment by 1 for every release build on a branch.
   # Reset to 0 when increasing release build number.
-  CHROMEOS_BRANCH=72
+  CHROMEOS_BRANCH=73
 
   # Patch number.
   # Increment by 1 in case a non-scheduled branch release build is necessary.