--- a
+++ b/scripts/migrations/026-install-activity-tool.py
@@ -0,0 +1,19 @@
+import logging
+
+from ming.orm import ThreadLocalORMSession
+
+from allura.lib import utils
+from allura import model as M
+
+log = logging.getLogger(__name__)
+
+def main():
+    for chunk in utils.chunked_find(M.Project):
+        for p in chunk:
+            p.install_app('activity')
+
+        ThreadLocalORMSession.flush_all()
+        ThreadLocalORMSession.close_all()
+
+if __name__ == '__main__':
+    main()