Keep catch-all files on server

Hi,I'm new and working with wyUpdate for a few weeks.My Question: Do I have to keep all the large catch-all files on the server, or only the last one.Example: My App has 4 Versions: 1.0.0.0, 1.0.0.1, 1.0.0.2, 1.0.0.3Files: app.1.0.0.0.to.1.0.0.1.wyu (small)app.1.0.0.0.to.1.0.0.2.wyu (small)app.1.0.0.0.to.1.0.0.3.wyu (small)app.1.0.0.1.to.1.0.0.2.wyu (small)app.1.0.0.1.to.1.0.0.3.wyu (small)app.1.0.0.2.to.1.0.0.3.wyu (small)app.all.to.1.0.0.1.wyu (large)app.all.to.1.0.0.2.wyu (large)app.all.to.1.0.0.3.wyu (large)Can I delete app.all.to.1.0.0.1.wyu and app.all.to.1.0.0.2.wyu? As I understand, they won't be used anymore since version 1.0.0.3 exists, or do I misunderstand something?

Thanks in advancedixi