diff --git a/openstack_releases/cmds/list_constraints.py b/openstack_releases/cmds/list_constraints.py
new file mode 100644
index 0000000000..ba06df68f5
--- /dev/null
+++ b/openstack_releases/cmds/list_constraints.py
@@ -0,0 +1,51 @@
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""Show the most current versions of everything in a given branch.
+"""
+
+from __future__ import print_function
+
+import argparse
+import glob
+import os
+import os.path
+
+import yaml
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        'series',
+        help='the name of the release series to scan',
+    )
+    args = parser.parse_args()
+
+    filenames = sorted(glob.glob('deliverables/' + args.series + '/*.yaml'))
+    if not filenames:
+        print('no deliverable files found under {}'.format(args.series))
+        return 1
+
+    for filename in filenames:
+        with open(filename, 'r') as f:
+            deliverable_info = yaml.load(f.read())
+
+        deliverable_name = os.path.splitext(os.path.basename(filename))[0]
+
+        # assume the releases are in order and take the last one
+        new_release = deliverable_info['releases'][-1]
+        print('{}==={}'.format(deliverable_name, new_release['version']))
+
+    return 0
diff --git a/setup.cfg b/setup.cfg
index 3dbcbec500..f4e1628bdc 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,6 +23,7 @@ packages = openstack_releases
 console_scripts =
     validate-request = openstack_releases.cmds.validate:main
     list-changes = openstack_releases.cmds.list_changes:main
+    list-constraints = openstack_releases.cmds.list_constraints:main
 
 [extras]
 sphinxext =