Parallels Virtuozzo Containers Update Wizard does not detect new PVC updates and gives:
Your Parallels Virtuozzo Containers installation is up to date. No further action is required.
Or it may show the following error:
Failed to parse XML file (FillUpdatesList).
But it is known that newer updates have been released already. What's the problem?
A likely cause is incorrect update settings.
Run PVC Update Wizard and click on 'Proxy Settings':
Verify the source to install updates from, it should be pointing to "Parallels Virtuozzo Containers Update Center" by default:
If a custom location is defined for the updates, verify that new updates are present there.