diff --git a/Docker-universal-app.md b/Docker-universal-app.md
index 7705244..70622ec 100644
--- a/Docker-universal-app.md
+++ b/Docker-universal-app.md
@@ -48,12 +48,12 @@ project/buda_apps/
 Note: you can build this hierarchy manually but
 typically it's maintained by a job-submission system; see below.
 
-This is similar to BOINC's hierarchy of apps and app versions,
-except that
+This is similar to BOINC's hierarchy of apps and app versions, except:
 
 * It's represented in a directory hierarchy, not in database tables
 * Science app versions are not associated with platforms
 (they don't have to be since we're using Docker).
+* It stores only the current version, not a sequence of versions.
 
 ## BUDA is not polymorphic